SEBU6907-09 M_24H

7/23/2019 SEBU6907-09 M_24H

http://slidepdf.com/reader/full/sebu6907-09-m24h 1/72

®© 2010 CaterpillarAll Rights Reserved

MAINTENANCE INTERVALSOperation and MaintenanceManual Excerpt

7/23/2019 SEBU6907-09 M_24H


SEBU6907-09

April 2007

Operation andMaintenance

Manual24H Motor Grader

7KK1-Up (Machine)

7/23/2019 SEBU6907-09 M_24H


SEBU6907-09 79Maintenance Section

Maintenance Interval Schedule

i02755067

Maintenance Interval Schedule

SMCS Code: 1000; 7000

Ensure that all safety information, warnings, andinstructions are read and understood before anyoperation or any maintenance procedures areperformed.

The user is responsible for the performance of maintenance, including all adjustments, the use of proper lubricants, fluids, fi lters, and the replacementof components due to normal wear and aging. Failureto adhere to proper maintenance intervals andprocedures may result in diminished performance of the product and/or accelerated wear of components.

Use mileage, fuel consumption, service hours, or

calendar time, WHICH EVER OCCURS FIRST,in order to determine the maintenance intervals.Products that operate in severe operating conditionsmay require more frequent maintenance.

Note: Before each consecutive interval is performed,all maintenance from the previous interval must beperformed.

When Required

Automatic Lubrication Reservoir - Fill ................... 81Battery - Recycle .................................................. 83Blade Lift Cylinder Socket - Check/Adjust/

Replace ............................................................... 85Brake Accumulator - Check .................................. 87Centershift Cylinder Socket - Check/Adjust/

Replace ............................................................... 92Circle Clearances - Check/Adjust . ........................ 93Circle Drive Oil Level - Check ............................... 97Circuit Breakers - Reset ........................................ 99Cutting Edges and End Bits - Inspect/Replace ... 105Drawbar Ball and Socket End Play -

Check/Adjust ..................................................... 107Engine Air Filter Primary Element - Clean/

Replace ............................................................. 108Engine Air Filter Secondary Element - Replace .. 110Engine Overheating ............................................. 116

Engine Power Loss .............................................. 116Ether Starting Aid Cylinder - Replace .................. 117Evaporator Coil and Heater Coil - Clean ............. 118Fuel System - Fill ................................................. 119Fuel System - Prime ........................................... 120Fuses - Replace .................................................. 124Moldboard Wear Strip - Inspect/Adjust/Replace .. 131Oil Filter - Inspect ................................................ 132Radiator Core - Clean ......................................... 133Ripper Tip - Inspect/Replace .............................. 134Steering Accumulator - Check ............................ 136Window Washer Reservoir - Fill .......................... 148Window Wiper - Inspect/Replace ........................ 148Windows - Clean ................................................. 148

Every 10 Service Hours or Daily

Backup Alarm - Test .............................................. 82Brakes, Indicators and Gauges - Test ................... 89Circle Drive Pinion Teeth - Lubricate .................... 98Circle Top - Lubricate ............................................ 98

Cooling System Level - Check ............................ 102Cooling System Pressure Cap - Clean/Replace .. 103Engine Air Filter Service Indicator - Inspect ......... 110Engine Air Precleaner - Clean ............................. 112Engine Oil Level - Check ..................................... 113Fuel Tank Water and Sediment - Drain ............... 124Hydraulic System Oil Level - Check ................... 128Seat Belt - Inspect .............................................. 135

Every 50 Service Hours or Weekly

Articulation Bearings - Lubricate ........................... 81 Axle Oscillation Bearings - Lubricate .................... 82Cab Air Filter - Clean/Replace .............................. 91

Crankshaft Vibration Damper - Clean ................. 104Drawbar Ball and Socket - Lubricate .................. 106Kingpin Bearings - Lubricate ............................... 129Ripper Linkage and Cylinder Bearings -

Lubricate ........................................................... 134Steering Cylinder Ends - Lubricate ..................... 136Steering Linkage - Lubricate ............................... 137Tire Inflation - Check ........................................... 140Wheel Lean Bar Bear ings - Lubricate ................. 146Wheel Lean Bearings - Lubricate ....................... 146Wheel Lean Cylinder Bearings - Lubricate ......... 147

Initial 250 Service Hours

Drawbar Ball and Socket End Play -Check/Adjust ..................................................... 107

Every 250 Service Hours

Engine Oil Sample - Obtain ................................. 114

Every 250 Service Hours or Monthly

Articulation Cylinder Bearings - Lubricate ............. 81Battery or Battery Cable - Inspect/Replace .......... 83Belts - Inspect/Adjust/Replace .............................. 84Blade Lift Cylinder Socket - Lubricate ................... 86Blade Tip Pin - Lubricate ....................................... 87Braking System - Test ........................................... 90

Centershift Cylinder Socket - Lubricate ................ 93Engine Air Filter Service Indicator -

Inspect/Replace ................................................. 111Engine Air Filter Service Indicator Screen -

Check/Replace ................................................... 112Engine Oil and Filter - Change ............................ 114Fan Drive Bearing and Belt Tightener -

Lubricate ............................................................ 118Machine Structure - Inspect ................................ 130Radiator - Clean .................................................. 133Tandem Drive Oil Level - Check ......................... 139Transmission and Differential Oil Level - Check .. 144

7/23/2019 SEBU6907-09 M_24H


80 SEBU6907-09Maintenance SectionMaintenance Interval Schedule


Hydraulic System Oil Sample - Obtain ............... 129Tandem Drive Oil Sample - Obtain ..................... 140Transmission and Differential Oil Sample -

Obtain ............................................................... 145

Every 500 Service Hours or 3 Months

Brake Oil Filter - Replace ...................................... 88Brake Oil Screen - Clean/Replace ........................ 88Differential Oil Filter - Replace ............................ 106Engine Crankcase Breather - Clean .................... 113Fuel System Water Separator Element -

Replace ............................................................. 121Fuel System Secondary Filter - Replace ............ 122Fuel Tank Cap and Strainer - Clean ................... 123Hydraulic System Oil Filter - Replace ................. 127Tandem Breather - Clean/Replace ..................... 138Transmission and Differential Oil Filter and Screens -

Replace/Clean .................................................. 142Wheel Bearing Oil Level (Front) - Check ............ 146

Every 1000 Service Hours or 6 Months

Battery Electrolyte Level - Check .......................... 83Rollover Protective Structure (ROPS) - Inspect .. 135Transmission and Differential Oil - Change ........ 140

Every 2000 Service Hours or 1 Year

Blade Cushion Accumulator - Check .................... 85Circle Drive Oil - Change ...................................... 97Condenser (Refrigerant) - Clean .......................... 99Differential Thrust Pin Clearance - Check .......... 106Engine Valve Lash - Check .................................. 117Engine Valve Rotators - Inspect .......................... 117Refrigerant Dryer - Replace ................................ 133Tandem Drive Oil - Change ................................ 138

Every 2000 Service Hours or 2 Years

Wheel Bearing Oil (Front) - Change ................... 145


Cooling System Water Temperature Regulator -Replace ............................................................. 103

Crankshaft Vibration Damper - Inspect ............... 104

Every 3 Years After Date of Installation or Every 5 Years After Date of Manufacture

Seat Belt - Replace ............................................. 136


Hydraulic System Oil - Change ........................... 126


Cooling System Coolant Extender (ELC) - Add .. 101


Final Drive Lip Seal - Replace ............................. 119

Every 12 000 Ser vice Hours or 6 Years

Cooling System Coolant (ELC) - Change ........... 100

7/23/2019 SEBU6907-09 M_24H



Articulation Bearings - Lubricate

i01315337

Articulation Bearings -Lubricate

SMCS Code: 7057-086-BD

Wipe all the fittings before you apply lubricant throughthe fittings.

g00696238Illustration 101

The upper articulation bearing has one fitting. Applylubricant through fitting (1) in order to lubricate theupper articulation bearing.

The lower articulation bearing has one fitting. Applylubricant through fitting (2) in order to lubricate thelower articulation bearing.

i01365817

Articulation Cylinder Bearings- Lubricate


Wipe all the fittings before you apply lubricant throughthe fittings.


Apply lubricant through fitting (2) in order tolubricate the cylinder bearing (head end) of the rightarticulation cylinder.

Apply lubricant through fitting (1) in order to lubricatethe cylinder bearing (head end) of the left articulation

cylinder.


The lubrication fittings for the rod end of thearticulation cylinders are located above thearticulation cylinder on the left side of the machine .

Apply lubricant through fitting (3) in order to lubricatethe cylinder bearing (rod end) of the right articulationcylinder.

Apply lubricant through fitting (4) in order to lubricatethe cylinder bearing (rod end) of the left articulation

cylinder.

i01345365

Automatic LubricationReservoir - Fill

SMCS Code: 7540-544-TNK

The automatic lubrication reservoir is located on thedrawbar assembly in front of the circle drive.

7/23/2019 SEBU6907-09 M_24H


82 SEBU6907-09Maintenance Section

Axle Oscillation Bearings - Lubricate


(1) Cover (2) Vent plug(3) Drain plug

Note: Make sure that any pressure in the lubricationsystem is released before you loosen any fitting,any hose, or any component. Make sure that ventplug (2) is removed before the lubrication reservoir isfilled. If vent plug (2) is not removed, pressure insidethe reservoir will cause the seal on cover (1) to failwhen the reservoir is filled.

Remove vent plug (2) and drain plug (3) in order tofill the lubricant tank. Use 7H-1680 Lubrication HandPump to fill the lubricant tank. Fill the lubricant tankthrough the drain port. Use a suitable container tocollect any lubricant that is spilled.

When the tank is empty, the tank holds 27 kg (60 lb)of lubricant.

The automatic lubrication reservoir provideslubrication for many components. There are 18fittings on the right front side of the machine. Thereare 18 fittings on the left front side of the machine.There are 3 fittings on the left side of the drawbar.There are 10 fittings on the ripper. There are 2 fittingson the front frame above the articulation cylinder.

If any of the remote lines become damaged, install afitting in place of the remote line. Lubricate the itemat the fittings until the remote line can be replaced.

See Service Manual, SENR4724, “AutomaticLubrication System” for additional details.

There are also two fittings for the fan bearing and for the adjusting pulley. These components are not partof the Automatic Lubrication System.

i01354967

Axle Oscillation Bearings -Lubricate

SMCS Code: 3268; 4313

The automatic lubrication system provides lubricationfor the axle oscillation bearings. If a remote linebecomes damaged, install a fitting in place of theremote line and lubricate the axle oscillation bearingat the fitting until the line can be replaced.


The fittings for the axle oscillation bearings are on the right sideof the machine.

Lubricate fitting (1) in order to lubricate the front axleoscillation bearing. Lubricate fitting (2) in order tolubricate the rear axle oscillation bearing.

i02307698

Backup Alarm - Test

SMCS Code: 7406-081

Turn the engine start switch to the ON position inorder to perform the test.

Apply the service brake. Move the transmissioncontrol (lever) to the REVERSE position.

The backup alarm should sound immediately.The backup alarm should continue to sound untilthe transmission control (lever) is moved to theNEUTRAL position or to any FORWARD position.

The backup alarm is located at the rear of themachine.

7/23/2019 SEBU6907-09 M_24H



Battery - Recycle

i00993589

Battery - Recycle

SMCS Code: 1401-561

Always recycle a battery. Never discard a battery.

Always return used batteries to one of the followinglocations:

• A battery supplier

• An authorized battery collection facility

• Recycling facility

i01691202

Battery Electrolyte Level -Check

SMCS Code: 1401-535-FLV

Table 6

The Chart for the Battery Electrolyte

Battery Interval

Conventional 100 Hour

Low Maintenance 250 Hours

Maintenance Free No Maintenance isRequired.

Tighten the battery retainers on all of the batteries.Tighten the battery retainers at every 1000 hours.

Check the following areas at a minimum intervalof 1000 hours. Check the following areas morefrequently during adverse conditions:

1. The battery access cover is positioned on top of the fuel tank. Open the battery access cover.

2. Clean the battery surface with a clean cloth.

3. Maintain clean battery terminals. You may usea coating of corrosion protection. Only use thecorrosion protection after the battery cable isconnected and after the battery cable is clean.

4. Coat the terminals with corrosion protection. Then,install the post cover.

5. For conventional batteries and low maintenancebatteries, follow these additional instructions:

• Inspect the battery electrolyte level in eachbattery cell. A maintenance free battery doesnot require inspection.

• Maintain the level of the distilled water to thebottom of the fi ller openings. If distilled water isnot available, use clean drinking water.

• A battery should not require more than 30 cc(1 ounce) of water per cell per week. This

requirement should exist with the proper charging rate and with a moderate climate.

• In extreme temperatures, check the water in thecells weekly. Cell water usage could be higher in extreme temperatures.

6. Close the battery access cover.

i01770781

Battery or Battery Cable -Inspect/Replace

SMCS Code: 1401-510; 1402-510

1. Turn the engine start switch key to the OFFposition. Turn all the switches to the OFF position.

2. Turn the key for the battery disconnect switch tothe OFF position. Remove the key.

3. Disconnect the negative battery cable at thebattery disconnect switch. The battery disconnectswitch is connected to the machine frame.

Note: Do not allow the disconnected battery cable to

contact the battery disconnect switch or the machine.

4. Disconnect the negative battery cable from thebattery.

5. Disconnect the positive battery cable from thebattery.

6. Inspect the battery terminals for corrosion. Inspectthe battery cables for wear or damage.

7. If necessary, make repairs. If necessary, replacethe battery cable or the battery.

8. Connect the positive battery cable at the battery.

9. Connect the negative battery cable at the battery.

10. Connect the battery cable at the batterydisconnect switch.

11. Install the key for the battery disconnect switch.Turn the battery disconnect switch to the ONposition.

7/23/2019 SEBU6907-09 M_24H


84 SEBU6907-09Maintenance SectionBelts - Inspect/Adjust/Replace

i01742712

Belts - Inspect/Adjust/Replace

SMCS Code: 1357-025; 1357-040; 1357-510

g00708496

Illustration 106

When the engine is stopped, open enginecompartment access cover (1) on the right side of the machine.

Alternator Belt

Inspect the Belt


1. Inspect the condition and the adjustment of

alternator belt (2). Check the tension on the belt.Measure the tension by using a Kent-Moore Co.BT-33-109 gauge. A used compressor drive beltshould measure 667 ± 44 N (150 ± 10 lb). Abelt that has been in operation for 30 minutes or more is a used belt. A new belt should measure801 ± 111 N (180 ± 25 lb).

Adjust the Belt

1. Loosen alternator bracket bolt (4). Loosenadjusting bolt (3).

2. Adjust the belt until the correct belt tension isreached. Tighten adjusting bolt (3) to 150 ± 20 N·m(110 ± 15 lb ft).

3. Tighten alternator bracket bolt (4).

4. Check the tension of alternator belt (2).

5. If alternator belt (2) is not correctly adjusted repeatStep 1 through Step 4.

6. Close access cover (1).

Air Conditioner Belt

Inspect the Belt


1. Inspect the condition and the adjustment of air conditioner belt (5). Check the tension on thebelt. Measure the tension by using a Kent-MooreCo. BT-33-97 gauge. A used compressor drivebelt should measure 445 ± 44 N (100 ± 10 lb). Abelt that has been in operation for 30 minutes or more is a used belt. A new belt should measure578 ± 111 N (130 ± 25 lb).


Adjust the Belt

1. Loosen lock bolt (6) for the refrigerant compressor.

Loosen mounting bolt (7) for the refrigerantcompressor.

2. Pull the refrigerant compressor backward. Tightenmounting bolt (7). Tighten lock bolt (6).

3. Check the tension of air conditioner belt (5).

4. If air conditioner belt (5) is not correctly adjustedrepeat Step 1 through Step 3.


7/23/2019 SEBU6907-09 M_24H



Blade Cushion Accumulator - Check

6. If you start the engine and poor cooling is stillexperienced, turn off the air conditioner. Stop theengine. Consult your Caterpillar dealer for air conditioner system service, if necessary.

Fan Drive Belts

Inspect the Belts


1. Inspect the condition of belts (8).

Note: If one belt or more than one belt is worn or damaged, replace the belts in sets.

Fan drive belts (8) have a belt tightener that isspring loaded. There is no adjustment for the fandrive belts.

2. Inspect the condition of belt tightener and spring(9). Lubricate the belt tightener at a regular interval. Refer to Operation and MaintenanceManual, “Fan Drive Bearing and Belt Tightener -Lubricate”.

i01564804

Blade Cushion Accumulator -Check

SMCS Code: 5077-535-BG

Consult your Caterpillar dealer for the followinginformation:

• The correct checking procedure

• The correct filling procedures

• The recommended pressure

i01692015

Blade Lift Cylinder Socket -Check/Adjust /Replace

SMCS Code: 5102-025; 5102-510; 5102-535;

5103-025; 5103-510; 5103-535

1. Rotate the blade. Position the blade at an angleof 90 degrees to the frame. Lower the blade tothe ground.

2. Operate the blade lift cylinders. Observe thesocket. If the socket moves without blademovement, adjustment is necessary.


3. Remove the bolts (2) from the cap (1). Removethe cap (1).

4. Remove one shim from either side of the inserts inorder to reduce clearance.

Note: If you need to remove two shims, then removeone shim from each side of the inserts.

5. Install the cap. Install the bolts and tighten thebolts.

6. Check the socket for movement. If you observemovement in the socket, repeat Step 3 throughStep 5.

Note: If no shims remain, install new inserts. Installtwo shims on each side of the inserts. Add additionalshims, as needed.

7/23/2019 SEBU6907-09 M_24H


86 SEBU6907-09Maintenance SectionBlade Lift Cylinder Socket - Lubricate

i01342668

Blade Lift Cylinder Socket -Lubricate

SMCS Code: 5102-086; 5103-086

The automatic lubrication system provides lubricationfor the blade lift cylinders. If a remote line becomesdamaged, install a fitting in place of the remote lineand lubricate the cylinders at the fitting until the linecan be replaced.

Wipe all the fittings before you apply lubricant to thefittings.


Three lubrication fittings (1) are located on the leftside of the drawbar.


Apply lubricant to fitting (2) in order to lubricate theball joint of the right blade lift cylinder. Apply lubricantto fitting (3) in order to lubricate the ball joint of theleft blade lift cylinder.


The fittings for the blade lift cylinder (right side) are on the rightside of the machine.

Apply lubricant to fitting (4) in order to lubricate the lift

cylinder trunnion (right side). Apply lubricant to fitting(5) in order to lubricate the lift cylinder trunnion (rightside). Apply lubricant to fitting (6) in order to lubricatethe lift cylinder yoke (right side).


The fi ttings for the blade lift cylinder (left side) are on the left sideof the machine.

Apply lubricant to fitting (7) in order to lubricate the liftcylinder trunnion (left side). Apply lubricant to fitting(8) in order to lubricate the lift cylinder trunnion (leftside). Apply lubricant to fitting (9) in order to lubricatethe lift cylinder yoke (left side).

7/23/2019 SEBU6907-09 M_24H



Blade Tip Pin - Lubricate

i01358485

Blade Tip Pin - Lubricate

SMCS Code: 6060-086-PN; 6154-086-PN

g00716941

Illustration 115

Two blade tip pins (1) are located behind themoldboard on the circle. One pin is on the left side of the circle and one pin is on the right side of the circle.Only one pin is shown in the photo.


Lubricate the fitting (2) on each of the two blade tippins.

i01352043

Brake Accumulator - CheckSMCS Code: 4263-535

Measure Pressure

1. Move the engine start switch key to the ONposition.


2. Alert indicator (1) for the brake oil pressure shouldcome on if the brake system is not at the normaloperating pressure.

3. Start the engine and run the engine for one minutein order to increase the accumulator pressure.

Alert indicator (1) should go off. Stop the engine.

4. Apply the service brake pedal and release theservice brake pedal in order to decrease theaccumulator pressure. Apply the service brakepedal and release the service brake pedal for aminimum of five applications, until alert indicator (1) comes on.


5. If alert indicator (1) comes on with less thanfive applications of the service brake pedal,measure the nitrogen precharge pressure of theaccumulators (2). Consult Systems Operation,Testing and Adjusting, SENR1431, “Brake

Accumulator - Test and Charge” for the followinginformation: the correct checking procedure, thecorrect filling procedure, and the recommendedpressure. Your Caterpillar dealer has theappropriate tools for measuring the prechargepressure of the brake accumulators. Only use drynitrogen gas to recharge the brake accumulators.

7/23/2019 SEBU6907-09 M_24H


88 SEBU6907-09Maintenance SectionBrake Oil Filter - Replace

i01368793

Brake Oil Filter - Replace

SMCS Code: 4295-510


1. Open access door (1).


NOTICECare must be taken to ensure that fluids are containedduring performance of inspection, maintenance, test-ing, adjusting and repair of the product. Be prepared tocollect the fluid with suitable containers before open-ing any compartment or disassembling any compo-nent containing fluids.

Refer to Special Publication, NENG2500, “Caterpillar Tools and Shop Products Guide” for tools and suppliessuitable to collect and contain fluids on Caterpillar products.

Dispose of all fluids according to local regulations andmandates.

2. Remove fi lter housing (2) and the element.

3. Inspect the fi lter element. Refer to Operation andMaintenance Manual, “Oil Filter - Inspect”.

Note: Discard filter elements according to localregulations.

4. Clean fi lter housing (2) and the base with clean,nonflammable solvent. Make sure that all of theold filter gasket has been removed.

5. Install the new fi lter element in the housing. Installthe housing and the element.

6. Close access door (1).

i01368807

Brake Oil Screen -Clean/Replace

SMCS Code: 4295-070; 4295-510






7/23/2019 SEBU6907-09 M_24H



Brakes, Indicators and Gauges - Test


2. Remove screen housing (2) and the screen.

3. Clean the screen with clean, nonflammable

solvent.

4. Inspect the screen. Replace the screen if thescreen is damaged.


5. Clean screen housing (2) and the base with clean,nonflammable solvent.

6. Install the screen in the housing. Install thehousing and the screen.


i01695214

Brakes, Indicators and Gauges- Test

SMCS Code: 4251-081; 4267-081; 4269-081;

7000-081; 7450-081; 7490-081


Look for broken lenses on the gauges, brokenindicator lights or broken switches, etc.

Start the engine. Run the engine until the gaugeshave stabilized.

Look for inoperative gauges.

Turn on all of the machine lights. Check for proper operation.

Sound the forward horn.

Move the machine forward and test the servicebrakes. If the service brakes do not function properly,see Operation and Maintenance Manual, “BrakingSystem - Test” in the Maintenance Interval Scheduleof this manual.

Stop the engine.

Make any needed repairs before you operate themachine.

7/23/2019 SEBU6907-09 M_24H


90 SEBU6907-09Maintenance SectionBraking System - Test

i01692077

Braking System - Test

SMCS Code: 3077-081; 4011-081; 4250-081;4251-081; 4267-081

Service Brake Holding Ability Test

Personal injury can result if the machine moveswhile testing.

If the machine begins to move during test, reducethe engine speed immediately and engage theparking brake.

Make sure that the area around the machine is clear of personnel and clear of obstacles.

Test the service brake on a dry, level surface.

Fasten your seat belt before you test the brakes.

Use the following test in order to determine whether the service brake is functional. This test is notintended to measure the maximum holding ability of the service brake.


1. Disconnect sensor (1) from service brake pedal(2).

Note: Disconnecting the sensor prevents thetransmission from disengagement.

2. Start the engine. Raise the blade slightly. Depresstransmission modulator pedal (3). Apply theservice brake (2).


3. Move the transmission direction and speed control(5) to the THIRD SPEED FORWARD position.Increase the engine speed to high idle.

4. Gradually release transmission modulator pedal(3). The machine should not move.

NOTICEIf the machine begins to move, reduce the enginespeed immediately and engage the parking brake.

5. Reduce the engine speed to low idle. Engageparking brake control (4). Lower the blade to theground. Stop the engine.

NOTICEIf the machine moved while testing the service brakeconsult your Caterpillar dealer.

Have the dealer inspect and, if necessary, repair theservice brakes before returning the machine to oper-ation.

Note: The friction material for the brake may requirereplacement. The new friction material for the brakemay need to be burnished for maximum performance.For the procedure to burnish the new friction materialfor the brake, consult your Caterpillar dealer or seeSpecial Instruction, SEHS9143, “Burnishing The

Secondary Brake Shoes”.

Parking Brake Holding Ability Test

Personal injury can result if the machine moveswhile testing.

It the machine begins to move during test, reducethe engine speed immediately and engage the ser-vice brake control.

7/23/2019 SEBU6907-09 M_24H



Cab Air Filter - Clean/Replace

Be sure that the area around the machine is clear of personnel and clear of obstacles.

Test the parking brake on a hard, dry surface.

Fasten your seat belt before you test the parking

brake.

Use the following test to determine whether theparking brake is functional. This test is not intendedto measure the maximum holding ability of theparking brake.

1. Position the machine on a slope of 20 percent.

2. Apply service brake control pedal (2). Withtransmission direction and speed control (5) in theNEUTRAL position, engage parking brake control(4). Release service brake control pedal (2). Thewheels should not rotate. If the wheels rotate,

engage the service brake control pedal (2).

NOTICEIf the machine moved while testing the parking brake,consult your Caterpillar dealer.

Have the dealer inspect and, if necessary repair theparking brake before returning the machine to opera-tion.

i01317125

Cab Air Filter - Clean/Replace

SMCS Code: 7311-070-FI; 7311-510-FI; 7342-070;7342-510

Outside Filters (Fresh Air)

Note: Clean the fi lters daily in dusty conditions.

Clean Filters


The outside air fi lter is located behind the operator’scompartment.

1. Remove filter cover (1).


2. Remove filter element (2). Clean filter element (2)with pressure air or wash filter element (2) in warmwater and a nonsudsing household detergent.

3. Rinse element (2) in clean water and allowelement (2) to dry completely.

4. Install fi lter element (2).

5. Install fi lter cover (1).

Change filters

Note: Change the filters when the filters are nolonger able to be cleaned.

1. Remove fi lter cover (1).

2. Remove filter elements (2) and discard theelements.

3. Install the new filter elements.

4. Replace filter cover (1).

Recirculation Air Filter

Clean Filters

Note: Clean the fi lters daily in dusty conditions.

7/23/2019 SEBU6907-09 M_24H


92 SEBU6907-09Maintenance SectionCentershift Cylinder Socket - Check/Adjust/Replace


Air fi lter (3) is located behind the operator’s seat.



2. Remove the filter element. Clean the filter elementwith pressure air or wash the element in warmwater and a nonsudsing household detergent.

3. Rinse the element in clean water. Allow theelement to dry completely.

4. Install the filter element.

5. Install filter cover (4).

Change Filters

Note: Change the filters when the filters are nolonger able to be cleaned.


2. Remove the filter element and discard theelement.

3. Install the new filter element.

4. Replace fi lter cover (4).

i01692090

Centershift Cylinder Socket -Check/Adjust /Replace

SMCS Code: 5223-023; 5223-025; 5223-535

1. Rotate the blade. Place the blade at an angle of 90 degrees to the frame. Lower the blade to theground.

2. Operate the centershift cylinder. Observe thesocket. If the socket moves without movement of the drawbar, adjustment is necessary.


3. Remove the bolts (1) from the cap. Remove thecap (2).

4. Remove one shim from either side of the inserts inorder to reduce clearance.

Note: If you need to remove two shims, then removeone shim from each side of the inserts.

5. Install the cap and bolts and tighten the bolts.

6. Check the socket for movement. If you observemovement in the socket, repeat Step 3 throughStep 5.

Note: If no shims remain, install new inserts. Installtwo shims on each side of the socket. Add additionalshims, as needed.

7/23/2019 SEBU6907-09 M_24H



Centershift Cylinder Socket - Lubricate

i01342425

Centershift Cylinder Socket -Lubricate

SMCS Code: 5223-086

The automatic lubrication system provides lubricationfor the center shift cylinder. If a remote line becomesdamaged, install a fitting in place of the remote lineand lubricate the cylinders at the fitting until the linecan be replaced.



Three lubrication fittings (1) are located on the leftside of the drawbar.


In order to lubricate the ball joint of the center shiftcylinder, apply lubricant to fitting (2).


The fittings for the centershift cylinder are on the left side of themachine.

Apply lubricant to fitting (3) in order to lubricate the

centershift cylinder mounting. Apply lubricant to fitting(4) in order to lubricate the trunnion for the centershiftcylinder. Apply lubricant to fitting (5) in order tolubricate the trunnion for the centershift cylinder.

i02564685

Circle Clearances -Check/Adjust

SMCS Code: 6152-025; 6152-535; 6153-025;6153-535; 6154-025; 6154-535; 6155-025;6155-535

Note: In order to improve the accuracy for alladjustments, remove debris and abrasive materialfrom the entire blade circle.

Blade Circle and Drawbar

1. Rotate the blade. Place the blade at an angle of 90 degrees to the frame.

Note: Install the C-clamps (not shown) before youlower the blade to the ground.


7/23/2019 SEBU6907-09 M_24H


94 SEBU6907-09Maintenance SectionCircle Clearances - Check/Adjust

2. Clamp two C-clamps onto the front of blade circle(2) and drawbar (1). This will fasten the bladecircle and the drawbar together. Tighten the twoC-clamps until wear strips (3) are in contact withthe top of the blade circle and with the bottom of the drawbar.

3. Lower the blade to the ground.

4. Engage the parking brake. Stop the engine.


5. Measure distance (A) between the top surfaceof the blade circle and the bottom surface of thedrawbar. Replace wear strip (3) if the distance isless than 1.5 mm (0.06 inch).

6. Inspect wear strip (3). Inspect the drawbar. Thewear strip should be in complete contact at allpoints with the blade circle. If the wear strip is notin complete contact with the blade circle, shims(5) can be used. If wear strip (3) is not in completecontact with the blade circle, replace the wear strip.

Blade Circle and Shoe

1. Perform Step 1 through Step 4 in “Blade Circleand Drawbar”.


2. Check wear strips (3) around the entirecircumference of blade circle (2). The wear stripsshould be in complete contact with the blade circle

and the drawbar.

3. Shoe mounting bolt (9), shoe mounting bolt (10)and shoe mounting bolt (11) must be tight. Makesure that wear strips (3) are completely seatedin circle shoes (8).

4. Measure the distance between the bottom of blade circle (2) and the top of shoe wear strip (4).Maintain an approximate clearance of 0.5 mm(0.02 inch). Maintain the proper clearance byadding shims (5) or by removing shims (5).

Note: The proper clearance will permit the blade

circle to freely rotate for 360 degrees.

Adjust circle shoes (8) one at a time.

5. Loosen locknuts (6) and remove the shoemounting bolts.

6. Add shims (5) or remove shims (5), as required.

7. Install the shoe mounting bolts and tightenlocknuts (6).

8. Check the clearance after each circle shoe (8)has been adjusted for proper clearance. Make

adjustments, if necessary.

Note: After all adjustments have been made, theblade circle must rotate freely without binding.

Circle Pinion and Circle Shoe

Note: The engagement of the circle pinion and toothsegment (12) is affected by the adjustment of circleshoes (8).

1. Rotate the blade. Place the blade at an angle of 90 degrees to the frame.

7/23/2019 SEBU6907-09 M_24H



Circle Clearances - Check/Adjust

2. Lower the blade to the ground.

3. Apply the service brake as you slowly inch themachine in a forward direction. This will hold alight load between shoe wear strips (4) for thefront circle shoes and blade circle (2).

4. Engage the parking brake. Stop the engine.

5. Loosen the following components on each of the circle shoes: shoe mounting bolt (9), shoemounting bolt (10), shoe mounting bolt (11), andlocknuts (6).

6. Follow one of the following three proceduresto center the blade circle on your machine.

Serial Numbers 7KK312-Up


1. At four different locations on the blade circle (front,rear, left and right), measure the distance betweenthe tip of tooth segment (12) and machined lip(13). Record the four measurements.

Note: When the blade circle is centered, the leftmeasurement and the right measurement will beequal. When the blade circle is centered, the frontmeasurement and the rear measurement will beequal.

2. If the measurements are different, tightenadjustment screws (7) or loosen adjustmentscrews (7) in order to change the position of theblade circle. Record the four measurements again.

3. Repeat Step 2 until the blade circle is centered onthe machine.

4. Once the blade circle is centered, turn adjustmentscrews (7) on the front circle shoes and the rear circle shoes until the measurement between thetip of tooth segment (12) and machined lip (13) atthe front of the blade circle is 3.0 mm (0.12 inch)larger than the measurement at the rear of the

blade circle. For example, if the blade circle iscentered and all of the measurements are equalat 9.0 mm (0.35 inch), turn adjustment screws(7) until the measurement at the front of theblade circle equals 10.5 mm (0.41 inch) and themeasurement at the rear of the blade circle equals7.5 mm (0.30 inch).

Note: If the correct measurement cannot be obtaineddue to worn shoe wear strips, replace the worn shoewear strips and repeat the procedure.

Note: Adjustment screws (7) must be tight againstcircle shoes (8) before you tighten the shoe mounting

bolts and locknuts (6).

5. Tighten the shoe mounting bolts and the locknutsfor the front circle shoes.

6. When the pinion clearance is set and the frontcircle shoes are in contact with the blade circle,measure distance (B) between each shoe wear strip (4) and blade circle (2). The distance shouldbe no more than 0.8 mm (0.03 inch).

7. Tighten all shoe mounting bolts to 1150 ± 100 N·m(840 ± 75 lb ft). Tighten all locknuts to a torque of 500 ± 65 N·m (369 ± 48 lb ft).

8. Lubricate the circle pinion and tooth segments(12). Refer to Operation and Maintenance Manual,“Circle Drive Pinion Teeth - Lubricate” for theproper procedure.

Serial Numbers 7KK40-311


7/23/2019 SEBU6907-09 M_24H


96 SEBU6907-09Maintenance SectionCircle Clearances - Check/Adjust


Note: When the blade circle is centered, the left

measurement and the right measurement will beequal. When the blade circle is centered, the frontmeasurement and the rear measurement will beequal.



4. Once the blade circle is centered, turn adjustment

screws (7) on the front circle shoes and the rear circle shoes until the measurement between thetip of tooth segment (12) and machined lip (13) atthe front of the blade circle is 3.0 mm (0.12 inch)larger than the measurement at the rear of theblade circle. For example, if the blade circle iscentered and all of the measurements are equalat 9.0 mm (0.35 inch), turn adjustment screws(7) until the measurement at the front of theblade circle equals 10.5 mm (0.41 inch) and themeasurement at the rear of the blade circle equals7.5 mm (0.30 inch).

Note: If the correct measurement cannot be obtained

due to worn shoe wear strips, replace the worn shoewear strips and repeat the procedure.

Note: Adjustment screws (7) must be tight againstcircle shoes (8) before you tighten the shoe mountingbolts and locknuts (6).

5. Tighten the shoe mounting bolts and the locknutsfor the f ront circle shoes.

6. When the pinion clearance is set and the frontcircle shoes are in contact with the blade circle,measure distance (B) between each shoe wear strip (4) and blade circle (2). The distance should

be no more than 0.8 mm (0.03 inch).



Serial Numbers 7KK1-39


Note: When the blade circle is centered, the leftmeasurement and the right measurement will beequal. When the blade circle is centered, the frontmeasurement and the rear measurement will beequal.




4. Once the blade circle is centered, turn adjustmentscrews (7) on the front circle shoes and the rear circle shoes until the measurement between theinside edge of blade circle (2) and the outsideedge of circle drive housing (14) is 3.0 mm(0.12 inch) larger than the measurement at therear of the blade circle. For example, if the bladecircle is centered and all of the measurementsare equal at 9.0 mm (0.35 inch), turn adjustmentscrews (7) until the measurement at the front of the blade circle equals 10.5 mm (0.41 inch) and

the measurement at the rear of the blade circleequals 7.5 mm (0.30 inch).

Note: If the correct measurement cannot be obtaineddue to worn shoe wear strips, replace the worn shoewear strips and repeat the procedure.

Note: Adjustment screws (7) must be tight againstcircle shoes (8) before you tighten the shoe mountingbolts and locknuts (6).

5. Tighten the shoe mounting bolts and the locknutsfor the front circle shoes.

7/23/2019 SEBU6907-09 M_24H



Circle Drive Oil - Change

6. When the pinion clearance is set and the frontcircle shoes are in contact with the blade circle,measure distance (B) between each shoe wear strip (4) and blade circle (2). The distance shouldbe no more than 0.8 mm (0.03 inch).



i01863845

Circle Drive Oil - Change

SMCS Code: 5207-510-OC




Clean the area around each drain plug and clean thearea around each check/fill plug before you removethe plugs.


One circle drive housing is located at the front of the circle drive.One circle drive housing is located at the rear of the circle drive.


1. Remove drain plug (1). Remove check/fill plug (2). Allow the oil to drain into a suitable container.

2. Clean the drain plug and install the drain plug.

3. Fill the circle drive housing with oil. See Operationand Maintenance Manual, “Capacities (Refill)”.

4. Clean the check/fill plug and install the check/fillplug.

5. Repeat Step 1 through Step 4 for the other circledrive housing.

6. Start the engine. Operate the machine for a fewminutes. Check the circle drive housings for leaks.

7. Stop the engine. Remove the check/fill plugs andcheck the oil level for each circle drive housing.Maintain the oil level to the bottom of the filler openings. If necessary, add oil.

8. Install the check/fill plugs.

i01692226

Circle Drive Oil Level - Check

SMCS Code: 5207-535-OC

If a leak develops or you suspect a leak, check theoil level.

There are two circle drive housings. One of the circledrive housings is located at the front of the circledrive. The other circle drive housing is located at therear of the circle drive.

Wipe the surfaces around the opening for thecheck/fill plug before you check the oil and beforeyou add oil.

The check/fill plug is located on top of the circle drivehousing at the front of the circle.

7/23/2019 SEBU6907-09 M_24H


98 SEBU6907-09Maintenance SectionCircle Drive Pinion Teeth - Lubricate


1. Remove check/fill plug (1).

2. Maintain the oil level to the bottom of the opening

for the check/fill plug.

3. Install check/fill plug (1).

4. Repeat Step 1 through Step 3 for the remainingcircle drive housing.

i01446507

Circle Drive Pinion Teeth -Lubricate

SMCS Code: 5207-086-PI


(1) One circle drive pinion is located at the front of the circle driveand one circle drive pinion is located at the rear of the circledrive.


1. Clean the dirt and the old lubricant from the bladecircle and from the circle drive pinion teeth.

2. Apply molybdenum disulfide grease to theblade circle and to the circle drive pinion teeth.Caterpillar Auto Lube 2 is recommended. Thereare two circle drive pinions (2).

i01863840

Circle Top - Lubricate

SMCS Code: 6154-086-TP

Contact with a moving attachment may cause injury or death.

Avoid contact with a moving attachment when lu-bricating or maintaining the attachment.

1. Park the machine on a level surface and engagethe parking brake.

2. Run the engine and raise the blade. Do not raisethe blade too high. Raise the blade enough toclear the surface.


7/23/2019 SEBU6907-09 M_24H



Circuit Breakers - Reset

3. Remove covers (1). There are a total of four covers for the lubrication points. There are twolubrication points on each side of the circle.

4. Rotate the blade circle and apply a dry filmlubricant to the top of the blade circle. See Special

Publication, SEBU6250, “Caterpillar MachineFluid Recommedations”, “Dry Film Lubricant”.

i01318973

Circuit Breakers - Reset

SMCS Code: 1417-529; 1420-529

Circuit Breaker Reset – Push the buttoninward in order to reset the circuit breakers.If the system is working properly, the button

will remain depressed. If the button does not remaindepressed, check the appropriate electrical circuit.


Alternator (1) – 105 AMP

Engine (2) – 25 AMP

Brake Retract (3) – 5 AMP

Battery (Right side) (4)

Battery (Left side) (5)

Flexxaire Fan (6) (if equipped)

i01367472

Condenser (Refrigerant) -Clean

SMCS Code: 1805-070

NOTICEIf excessively dirty, clean condenser with a brush. Toprevent damage or bending of the fins, do not use astiff brush.

Repair the fins if found defective.


1. Remove access panel (1) at the rear of themachine.


2. Refriger ant condenser (2) is located behind theradiator at the rear of the machine. Inspect thecondenser for debris. If necessary, clean thecondenser.

3. Use clean water in order to wash off all dust anddirt from the condenser.

4. Replace access panel (1).

7/23/2019 SEBU6907-09 M_24H


100 SEBU6907-09Maintenance SectionCooling System Coolant (ELC) - Change

i01863846

Cooling System Coolant (ELC)- Change

SMCS Code: 1350-044-NL; 1350-544-NL;

1395-044-NL

Personal injury can result from hot coolant, steamand alkali.

At operating temperature, engine coolant is hotand under pressure. The radiator and all linesto heaters or the engine contain hot coolant or steam. Any contact can cause severe burns.

Remove cooling system pressure cap slowly to

relieve pressure only when engine is stopped andcooling system pressure cap is cool enough totouch with your bare hand.

Do not attempt to tighten hose connections whenthe coolant is hot, the hose can come off causingburns.

Cooling System Coolant Additive contains alkali.Avoid contact with skin and eyes.

NOTICEMixing ELC with other products reduces the effective-

ness of the coolant and shortens coolant life. Use onlyCaterpillar products or commercial products that havepassed the Caterpillar EC-1 specifications for pre-mixed or concentrate coolants. Use only Caterpillar Extender with Caterpillar ELC. Failure to follow theserecommendations could result in the damage to cool-ing systems components.

If ELC cooling system contamination occurs see thetopic Extended Life Coolant (ELC) in the Operationand Maintenance Manual, SEBU6250, “Caterpillar Machine Fluids Recommendations”.

NOTICECare must be taken to ensure that fluids are containedduring performance of inspection, maintenance, test-ing, adjusting and repair of the product. Be prepared tocollect the fluid with suitable containers before open-

ing any compartment or disassembling any compo-nent containing fluids.



If the coolant in the machine is changed to ExtendedLife Coolant from another type of coolant, see Special

Publication, SEBU6250, “Extended Life CoolantCooling System Maintenance”.

Drain the coolant whenever the coolant is dirty or whenever foaming is observed.


1. Slowly loosen pressure cap (1) in order to relievesystem pressure. Remove pressure cap (1).


7/23/2019 SEBU6907-09 M_24H



Cooling System Coolant Extender (ELC) - Add

2. Drain valve (2) is located on the left side of themachine under the radiator. Remove the frontbottom guard in order to properly access the drain.Open drain valve (2). Allow the coolant to draininto a suitable container.

3. Close drain valve (2). Fill the cooling system witha solution which consists of clean water and of cooling system cleaner. The concentration of thecooling system cleaner should be 6 to 10 percent.

4. Start the engine. Run the engine for 90 minutes.Stop the engine. Drain the cleaning solution into asuitable container.

5. While the engine is stopped, flush the system withwater. Flush the system until the draining water is clean.

6. Close drain valve (2).

7. Install the front bottom guard.

8. Add the coolant solution. See the following topics:

• Special Publication, SEBU6250, “Caterpillar Machine Fluids Recommendations”

• Operation and Maintenance Manual, “LubricantViscosities”

• Operation and Maintenance Manual, “Capacities(Refill)”

Note: If you are using Caterpillar antifreeze, donot add the supplemental coolant additive at thistime. Also, do not change the supplemental coolantadditive element at this time.

9. Start the engine. Run the engine without thepressure cap until the thermostat opens and thecoolant level stabilizes.

10. Maintain the coolant level within 13.0 mm(0.50 inches) of the bottom of the fi ller pipe.

11. Install the pressure cap. If the gasket is damaged,replace the pressure cap.

12. Stop the engine.

i01863850

Cooling System CoolantExtender (ELC) - Add

SMCS Code: 1352-045; 1352-535; 1352-544;

1352-544-NL; 1395-081



Remove cooling system pressure cap slowly to

relieve pressure only when engine is stopped andcooling system pressure cap is cool enough totouch with your bare hand.


Cooling System Coolant Additive contains alkali.Avoid contact with skin and eyes.

NOTICECare must be taken to ensure that fluids are contained

during performance of inspection, maintenance, test-ing, adjustingand repair of theproduct. Be prepared tocollect the fluid with suitable containers before open-ing any compartment or disassembling any compo-nent containing fluids.



When a Caterpillar Extended Life Coolant (ELC)is used, an extender must be added to the coolingsystem. See the Operation and MaintenanceManual, “Maintenance Interval Schedule” for theproper service interval. The amount of extender isdetermined by the cooling system capacity.

1. Stop the engine and allow the engine to cool.

7/23/2019 SEBU6907-09 M_24H


102 SEBU6907-09Maintenance SectionCooling System Level - Check


2. Open the cover. Remove the cooling systempressure cap (1) slowly in order to relieve thepressure.

3. Drain some coolant from the radiator into asuitable container. This will allow space for additional cooling system coolant extender.

4. In order to add cooling system coolant extender,refer to the Special Publication, SEBU6250,“Extended Life Coolant (ELC)”. Refer to the tablefor the correct amount of Caterpillar ExtendedLife Coolant (ELC) Extender that is needed to beadded to the cooling system.

5. Install the cooling system pressure cap (1). Closethe cover.

i01692449

Cooling System Level - Check

SMCS Code: 1350-040; 1350-040-HX;1350-535-FLV; 1350-535; 1353-535-FLV;

1354-535; 1395-082; 1395-535; 1395-535-FLV



Remove filler cap slowly to relieve pressure onlywhen engine is stopped and radiator cap is coolenough to touch with your bare hand.


Cooling System Conditioner contains alkali. Avoidcontact with skin and eyes.

The sight gauge for the cooling system is located onthe left side of the machine at the rear of the machine.


1. Maintain coolant level so that coolant is visible insight gauge (1).

7/23/2019 SEBU6907-09 M_24H



Cooling System Pressure Cap - Clean/Replace


2. If necessary, add the appropriate coolant mixture.Open the cover. Remove filler cap (2) slowly inorder to relieve pressure. Add coolant through the

filler tube.

3. Install filler cap (2). Close the cover.

i01692462

Cooling System Pressure Cap- Clean/Replace

SMCS Code: 1382-070; 1382-510



Remove filler cap slowly to relieve pressure onlywhen engine is stopped and radiator cap is coolenough to touch with your bare hand.




1. Remove pressure cap (1) slowly in order to relievepressure.

2. Inspect pressure cap (1) and the cap seal for damage, deposits, and foreign material. Cleanpressure cap (1) with a clean cloth. Replacepressure cap (1) if pressure cap (1) is damaged.

3. Install cap (1).

i00350379

Cooling System Water Temperature Regulator -Replace

SMCS Code: 1355-070; 1355-510; 1393-010



Remove filler cap slowly to relieve pressure only

when engine is stopped and radiator cap is coolenough to touch with your bare hand.



7/23/2019 SEBU6907-09 M_24H


104 SEBU6907-09Maintenance SectionCrankshaft Vibration Damper - Clean

Replace the cooling system water temperatureregulator on a regular basis in order to reduce thechance of unscheduled downtime and of problemswith the cooling system.

The water temperature regulator should be replaced

after the cooling system has been cleaned. Replacethe water temperature regulator while the coolingsystem is completely drained or while the coolingsystem coolant is drained to a level that is below thewater temperature regulator housing assembly.

NOTICEFailure to replace the engine’s water temperature reg-ulator on a regularly scheduled basis could cause se-vere engine damage.

Note: If you are only replacing the water temperatureregulator, drain the cooling system coolant to a level

that is below the water temperature regulator housingassembly.

1. Loosen the hose clamp and remove the hose fromthe water temperature regulator housing.

2. Remove the bolts from the water temperatureregulator housing and remove the water temperature regulator housing.

3. Remove the gasket and remove the water temperature regulator from the water temperatureregulator housing.

NOTICEFormer water temperature regulators may be used, if they meet test specifications and are not damaged or have excessive buildup or deposits.

NOTICESince Caterpillar engines incorporate a shunt designcooling system, it is mandatory to always operate theengine with a water temperature regulator.

Depending on load, failure to operate with a water temperature regulator could result in either an over-

heating or an overcooling condition.

NOTICEIf the water temperature regulator is installed incor-rectly, it will cause the engine to overheat.

4. Install a new water temperature regulator anda new gasket. Install the water temperatureregulator housing.

5. Install the water temperature regulator housingand the hose. Tighten the hose clamp.

6. Add the cooling system coolant. Maintain thecoolant level within 13 mm (.5 inch) of the bottomof the filler tube.

i01794213

Crankshaft Vibration Damper - Clean

SMCS Code: 1205-070


Use a high pressure washer in order to clean the dirt,the mud and the debris from the crankshaft vibrationdamper.

Note: Excessive dirt and mud can cause unwantedvibration.

i01353557

Crankshaft Vibration Damper - Inspect

SMCS Code: 1205-040

Damage to the vibration damper or failure of thevibration damper will increase torsional vibrations.These vibrations will result in damage to thecrankshaft and to the other engine components. Adeteriorating vibration damper will cause excessive

gear train noise at variable points in the speed range.

7/23/2019 SEBU6907-09 M_24H



Cutting Edges and End Bits - Inspect/Replace


Caterpillar recommends replacing vibration damper (1) for any of the following reasons:

• The engine has had a failure because of a brokencrankshaft.

• The S·O·S analysis detected a worn crankshaftfront bearing.

• The S·O·S analysis detected a large amount of gear train wear that is not caused by a lack of oil.

• Fluid leakage is detected during inspection.

• The housing is damaged.

Refer to Disassembly and Assembly, SENR1436,“Damper & Crankshaft Pulley” for the procedure toremove the damper and the procedure to install thedamper.

The vibration damper can be used again if none of the above conditions are found or if the vibrationdamper is not damaged.

Note: Contact your Caterpillar Dealer for further information.

i01569254

Cutting Edges and End Bits -Inspect/Replace

SMCS Code: 6801-040; 6801-510; 6804-040;

6804-510

Personal injury or death can result from the bladefalling.

Block the blade before changing blade tips.


End bits (1) and/or cutting edges (2) may bedamaged. End bits (1) and/or cutting edges (2) may

be worn excessively. Replace the end bits (1) and/or the cutting edges (2), as needed.

1. Place blocks under the blade. Lower the bladeonto the blocks. Do not block up the blade toohigh. Just use enough blocks so that end bits (1)and cutting edges (2) can be removed.

2. Remove end bits (1) and/or cutting edges (2).

3. Install new end bits (1) and/or new cutting edges(2).

4. Raise the blade and remove the blocks.

7/23/2019 SEBU6907-09 M_24H


106 SEBU6907-09Maintenance SectionDifferential Oil Filter - Replace

i01368552

Differential Oil Filter - Replace

SMCS Code: 3258-510-FI







2. Remove filter assembly (2).

3. Inspect the fi lter element. Refer to Operation andMaintenance Manual, “Oil Filter - Inspect”.


4. Clean the filter base with clean, nonflammablesolvent. Make sure that all of the old fi lter gaskethas been removed.

5. Install the new filter assembly.


i01705561

Differential Thrust PinClearance - Check

SMCS Code: 3258-535-T9; 3258; 3260; 3284


The differential thrust pin is located on the left sideof the rear axle housing.

For the correct thrust pin adjustment procedures,refer to Disassembly and Assembly, SENR1437,“Differential, Bevel Gear and Pinion” or see your Caterpillar dealer.

i01348438

Drawbar Ball and Socket -Lubricate

SMCS Code: 6170-086; 6171-086

The automatic lubrication system provides lubricationfor the drawbar ball and socket. If a remote linebecomes damaged, install a fitting in place of theremote line and lubricate the drawbar ball and socketat the fitting until the line can be replaced.

Wipe the fitting before you apply lubricant to thefitting.

7/23/2019 SEBU6907-09 M_24H



Drawbar Ball and Socket End Play - Check/Adjust


The fitting for the drawbar ball and socket is locatedon the front frame at the right front of the machine.Lubricate fitting (1) in order to lubricate the drawbar

ball and socket.

i01324908

Drawbar Ball and Socket EndPlay - Check/Adjust

SMCS Code: 6170-025; 6170-535; 6171-025;6171-535

Check

Rotate the blade so that the blade is placed at an

angle of 90 degrees to the frame. Lower the blade tothe ground. While you maintain a light load betweenthe ball and the socket, inch the machine slowly tothe rear. Stop the machine and shut off the engine.


Location of drawbar ball and socket

Measure the end play that is between the ball (3) andthe cap (4). The end play should be 0.6 ± 0.2 mm(.02 ± .01 inch). Adjust the end play, if necessary.

Adjust

1. Support the drawbar and support the circle.

2. Remove the eight bolts (1) that hold the drawbar to the bolster. Move the drawbar backward or

move the machine forward.


3. Remove the two capscrews (2) from the cap(4) that holds the drawbar and the adapter (6)together. Remove the adapter.

4. As required, remove the shims (5) or installthe shims (5) in order to attain an end play of 0.6 ± 0.2 mm (.02 ± .01 inch).

5. Install the two capscrews (2) in the cap (4) andadapter (6). Rotate the cap (4) by hand. The

socket should rotate freely on the ball (3).

g00701357Illustr ation 164

6. Check the torque on the eight bolts (7) thathold the ball (3) in place. The correct torque is900 ± 100 N·m (664 ± 74 lb ft).

7. Assemble the drawbar to the bolster. Tighten theeight bolts (1) to a torque of 1800 ± 200 N·m(1328 ± 148 lb ft).

7/23/2019 SEBU6907-09 M_24H


108 SEBU6907-09Maintenance SectionEngine Air Filter Primary Element - Clean/Replace

i01692502

Engine Air Filter PrimaryElement - Clean/Replace

SMCS Code: 1051-070-PY; 1051-510-PY;

1054-070-PY; 1054-510-PY

NOTICEService the air cleaner only with the engine stopped.Engine damage could result.

Service the air cleaner filter element when theyellow piston on the engine air filter serviceindicator enters the red zone or the indicator reads 63.5 cm (25 inch) of water. Refer toOperation and Maintenance Manual, “Engine Air Filter Service Indicator - Inspect”.

1. Open the access door for the air fi lter housing.


2. Remove cover (1) for the air filter housing .

3. Remove primary filter element (2) from the air filter housing.

4. Clean the inside of the air filter housing.

5. If the machine is equipped with a vacuator valve,clean the vacuator valve on the cover for the air filter housing.

6. Install a clean primary air fi lter element. Install thecover for the air filter housing.

Note: Refer to “Cleaning Primary Air Filter Elements”.

7. Reset the engine air fi lter service indicator.

8. Close the access door.

If the yellow piston in the indicator moves into the redzone after starting the engine or the exhaust smokeis still black after installation of a clean primary filter element, install a new primary filter element. If thepiston remains in the red zone replace the secondaryelement.

Cleaning Primary Air Filter Elements

NOTICECaterpillar recommends certified air filter cleaning ser-vices available at participating Caterpillar dealers. TheCaterpillar cleaning process uses proven proceduresto assure consistent quality and suf ficient filter life.

Observe the f ollowing guidelines if you attempt toclean the filter element:

Do not tap or strike the filter element in order to re-move dust.

Do not wash the filter element.

Use low pressure compressed air in order to removethe dust from the filter element. Air pressure must notexceed 207 kPa (30 psi). Direct the air flow up thepleats and down the pleats from the inside of the filter element. Take extreme care in order to avoid damageto the pleats.

Do not use air filters with damaged pleats, gaskets, or seals. Dirt entering the engine will cause damage toengine components.

The primary air filter element can be used up tosix times if the element is properly cleaned andinspected. When the primary air filter element iscleaned, check for rips or tears in the fi lter material.The primary air fi lter element should be replaced atleast one time per year. This replacement should beperformed regardless of the number of cleanings.

NOTICEDo not clean the air filter elements by bumping or tap-ping. This could damage the seals. Do not use ele-ments with damaged pleats, gaskets, or seals. Dam-aged elements will allow dirt to pass through. Enginedamage could result.

Visually inspect the primary air fi lter elements beforecleaning. Inspect the air fi lter elements for damageto the seal, the gaskets, and the outer cover. Discardany damaged air filter elements.

There are two common methods that are used toclean pr imary air filter elements:

• Pressurized air

7/23/2019 SEBU6907-09 M_24H



Engine Air Filter Primary Element - Clean/Replace

• Vacuum cleaning

Pressurized Air

Pressurized air can be used to clean primary air fi lter elements that have not been cleaned more than two

times. Pressurized air will not remove deposits of carbon and oil. Use fi ltered, dry air with a maximumpressure of 207 kPa (30 psi).


Note: When the primary air filter elements arecleaned, always begin with the clean side (inside)in order to force dirt particles toward the dirty side(outside).

Aim the hose so that the air flows inside the elementalong the length of the filter in order to help preventdamage to the paper pleats. Do not aim the stream of air directly at the primary air fi lter element. Dirt couldbe forced further into the pleats.

Vacuum Cleaning

Vacuum cleaning is another method for cleaningprimary air filter elements which require daily cleaningbecause of a dry, dusty environment. Cleaning withpressurized air is recommended prior to vacuumcleaning. Vacuum cleaning will not remove depositsof carbon and oil.

Inspecting the Primary Air Filter Elements


Inspect the clean, dry primary air fi lter element. Use

a 60 watt blue light in a dark room or in a similar facility. Place the blue light in the primary air filter element. Rotate the primary air filter element. Inspectthe primary air fi lter element for tears and/or holes.Inspect the primary air filter element for light that mayshow through the fi lter material. If it is necessary inorder to confirm the result, compare the primary air filter element to a new primary air fi lter element thathas the same part number.

Do not use a primary air fi lter element that has anytears and/or holes in the filter material. Do not usea primary air filter element with damaged pleats,gaskets or seals. Discard damaged primary air fi lter elements.

Storing Primary Air Filter Elements

If a primary air filter element that passes inspectionwill not be used, the primary air filter element canbe stored for future use.


7/23/2019 SEBU6907-09 M_24H


110 SEBU6907-09Maintenance SectionEngine Air Filter Secondary Element - Replace

Do not use paint, a waterproof cover, or plastic as aprotective covering for storage. An air flow restrictionmay result. To protect against dirt and damage, wrapthe primary air fi lter elements in Volatile CorrosionInhibited (VCI) paper.

Place the primary air filter element into a box for storage. For identification, mark the outside of thebox and mark the primary air filter element. Includethe following information:

• Date of cleaning

• Number of cleanings

Store the box in a dry location.

i01341132

Engine Air Filter SecondaryElement - Replace

SMCS Code: 1051-510-SE; 1054-510-SE

NOTICE Always replace the secondary element. Do not at-tempt to reuse it by cleaning. Engine damage couldresult.

Note: Replace the engine air filter secondary elementwhen you service the engine air filter primary elementfor the thir d time. Replace the secondary element

if the exhaust smoke remains black and a cleanprimary element has been installed. Also, replacethe secondary element if the element has been inservice for one year.

1. Open the left side engine compartment accessdoor, if equipped. Remove the air cleaner cover and the primary element.


2. Remove the secondary element.

3. Cover the air inlet opening. Clean the inside of the air cleaner housing.

4. Uncover the air inlet opening. Install a newsecondary element.

5. Install the pr imary element and the air cleaner cover.

6. Close the left side engine compartment door, if equipped.

Note: When you replace the air filter element, youmust replace the filter screen. Refer to Operationand Maintenance Manual, “Engine Air Filter ServiceIndicator Screen - Check/Replace”.

i01692537

Engine Air Filter ServiceIndicator - Inspect

SMCS Code: 7452-040; 7452-040-DJ;7452-040-ENG

1. Reset the engine air filter service indicator.

2. Start the engine.

3. Run the engine at high idle.



7/23/2019 SEBU6907-09 M_24H



Engine Air Filter Service Indicator - Inspect/Replace


5. If the yellow piston in the engine air filter serviceindicator (2) enters the red zone, stop the engineand service the air cleaner.

If the yellow piston in the engine air filter serviceindicator (2) does not enter the red zone, the air cleaner does not require service at this time.

6. Stop the engine.

Note: See the Operation and Maintenance Manual,“Engine Air Filter Primary Element - Clean/Replace”.See the Operation and Maintenance Manual, “Engine

Air Filter Secondary Element - Replace”.


Note: Refer to Operations and Maintenance Manual,“Engine Air Filter Service Indicator - Inspect/Replace”in order to determine if an engine air filter serviceindicator is faulty.

i01334212

Engine Air Filter ServiceIndicator - Inspect/Replace

SMCS Code: 7452-040; 7452-510




2. Stop the engine. Check the operation of serviceindicator (2) by pressing the reset button on the

bottom of service indicator (2). This should requirethree pushes or less of the reset button.

3. Next, check the movement of the yellow pistonin service indicator (2). Start the engine andaccelerate the engine to high idle for a fewseconds. After the governor control pedal isreleased, the yellow piston should remain atthe highest position that was achieved duringacceleration.

Note: The air filter indicator should be replacedduring engine overhauls. The air filter indicator shouldalso be replaced during replacement of any major

engine component . Replace the air fi lter indicator atleast one time per year.

4. If the indicator will not reset easily, replace serviceindicator (2). If the yellow piston of the indicator will not latch at the highest vacuum that isattained, replace service indicator (2). Tighten theindicator to a torque of 2 N·m (18 lb in). Excessivetightening force may crack the top of the indicator.For more information on the air filter indicator,refer to Video Tape, PEVN1736, “Caterpillar Air Filter Service Indicator”.

Note: If the indicator does not reset, the filter in

the restriction sensing hole of the air filter may beplugged.


7/23/2019 SEBU6907-09 M_24H


112 SEBU6907-09Maintenance SectionEngine Air Filter Service Indicator Screen - Check/Replace

i01357407

Engine Air Filter ServiceIndicator Scr een -Check/Replace

SMCS Code: 7452-510-Z3; 7452-535-Z3


Check

1. Set an 8N-2694 Air Filter Service Indicator toindicate a restricted air cleaner.

2. Screw the indicator onto a 1/8 inch NPT pipenipple.

3. Screw the other end of the nipple into the threadedhole in the elbow. Normally, filter screen (1) islocated in the elbow.

4. Depress the reset button on the 8N-2694 Air Filter Service Indicator.

5. If the indicator resets, filter screen (1) is not

plugged. If the indicator does not reset, fi

lter screen (1) is plugged. Filter screen (1) shouldthen be replaced.

Replace

1. Remove the air cleaner from the air cleaner housing. Removing the air cleaner from the air cleaner housing will provide access to the holeinside the elbow. Filter screen (1) is installedinside the elbow.

2. A 2 inch piece of 1/8 inch drill rod is needed inorder to push filter screen (1) from the inside of the elbow to the outside.

3. After the plugged filter screen (1) has beenremoved, install a new fi lter screen (1) in the hole

on the outside of the elbow. Use a piece of 1/4inch drill rod to lightly seat the fi lter element in thebottom of the bore.

i01550089

Engine Air Precleaner - Clean

SMCS Code: 1055-070; 1055-070-DJ

NOTICEService the engine air precleaner only with the enginestopped. Engine damage could result.

The engine air precleaner is positioned on top of theengine compartment.


1. Loosen clamp (1) at the bottom of engine air precleaner (2).

2. Remove engine air precleaner (2) and inspect theopening for dirt and debris. Clean the tubes, if necessary.

3. Clean engine air precleaner (2) with pressure air or wash the engine air precleaner (2) in cleanwarm water.

4. Install engine air precleaner (2). Tighten clamp (1).

7/23/2019 SEBU6907-09 M_24H



Engine Crankcase Breather - Clean

i01325724

Engine Crankcase Breather -Clean

SMCS Code: 1000-070-BRE; 1317-070;

1317-070-DJ

The engine crankcase breathers are positioned onthe top of the engine at the front of the engine.


1. Open the right side access doors (1).


2. Loosen outlet hose clamp (2) on the enginecrankcase breather (3). Remove the outlet hosefrom engine crankcase breather (3).

3. Loosen clamp (4). Remove engine crankcasebreather (3).

4. Check the condition of the seal on enginecrankcase breather (3). If the seal is damaged,replace engine crankcase breather (3).

5. Wash engine crankcase breather (3) in cleannonflammable solvent.

6. Shake engine crankcase breather (3) or usepressure air to dry engine crankcase breather (3).

7. Inspect the hose for damage. If the hose isdamaged, replace the hose.

8. Install the engine crankcase breather (3). Tightenclamp (4) to 4.5 ± 0.5 N·m (40.00 ± 4.40 lb in).

9. Install the hose and clamp (2).

Note: Three breathers need to be cleaned. Use thesame procedur e to clean each of the breathers.

10. Repeat Step 1 through Step 9 for each of theother two breathers.

11. Close the right side access doors (1).

i01325871

Engine Oil Level - Check

SMCS Code: 1000-535-FLV; 1302-535-FLV;1326-535-OC; 1326-535-FLV; 1348-535-FLV

Hot oil and hot components can cause personalinjury. Do not allow hot oil or hot components tocontact skin.

NOTICEDo not under fill or over fill engine crankcase with oil.Either condition can cause engine damage.

Note: Clean the area around the dipstick and cleanthe area around the oil fi ll cap before you removethese components.


1. Open left side engine compartment access door (1).

7/23/2019 SEBU6907-09 M_24H


114 SEBU6907-09Maintenance SectionEngine Oil Sample - Obtain


2. Before you start the engine, check the “ENGINESTOPPED” side of dipstick (2) while the engine isstopped. Maintain the oil level between the “ADD”

mark and the “FULL” mark.

Start the engine and check the “ENGINERUNNING” side of dipstick (2) while the engine isrunning. Maintain the oil level between the “ADD”mark and the “FULL” mark.


3. Remove oil fi ller cap (3). If necessary, add oil.

4. Clean oil fi ller cap (3) and install oil filler cap (3).

5. Close engine compartment access door (1).

i01863853

Engine Oil Sample - Obtain

SMCS Code: 1348-008; 1348-554-SM; 7542-008;7542-554-OC, SM

Hot oil and hot components can cause personalinjury. Do not allow hot oil or hot components tocontact the skin.



Sampling valve (2) is located on the oil filter base.

The oil fi

lter base is located behind access door (1)on the right side of the machine.

Refer to Special Publication, SEBU6250, “S·O·S Oil Analysis” for information that pertains to obtaininga sample of the hydraulic oil. Refer to SpecialPublication, PEHP6001, “How To Take A Good OilSample” for more information about obtaining asample of the hydraulic oil.

i01863855

Engine Oil and Filter - Change

SMCS Code: 1302-044-OC; 1308-510; 1318-510;1326-535-OC; 1348-044


NOTICEDo not under fill or over fill engine crankcase with oil.Either condition can cause engine damage.

7/23/2019 SEBU6907-09 M_24H



Engine Oil and Filter - Change

1. Park the machine on a level surface and engagethe parking brake. Stop the engine.

Note: Drain the crankcase while the oil is warm. Thisallows waste particles that are suspended in the oil todrain. As the oil cools, the waste particles will settle

to the bottom of the crankcase. The particles will notbe removed by draining the oil and the particles willrecirculate in the engine lubrication system with thenew oil.

Note: Articulate the machine to the left in order to getbetter access to the crankcase drain valve.


2. Open access door (1) on the right side of themachine.

NOTICE

Care must be taken to ensure that fluids are containedduring performance of inspection, maintenance, test-ing, adjusting and repair of the product. Be prepared tocollect the fluid with suitable containers before open-ing any compartment or disassembling any compo-nent containing fluids.




3. Remove the oil pan drain plug.

4. Open crankcase drain valve (2). Allow the oil to

drain into a suitable container.

Note: Discard any drained fluids and discard anyfilter elements according to local regulations.

5. Close drain valve (2).

6. Clean the area around engine oil fi lters (3) beforeyou remove the engine oil filters (3). Removeengine oil fi lters (3) with a strap type wrench. SeeOperation and Maintenance Manual, “Oil Filter -Inspect”.

7. Clean the base of the engine oil filter housing.

Make sure that all of the old filter gasket isremoved.

8. Apply a light coat of engine oil to the gasket of thenew engine oil filter.

9. Install the new engine oil filter by hand. Additionallytighten the engine oil filter by 3/4 of a turn, after the gasket contacts the fi lter base.


10. Open access door (4) on the left side of themachine.

7/23/2019 SEBU6907-09 M_24H


116 SEBU6907-09Maintenance SectionEngine Overheating



11. Clean the area around the dipstick before you

remove dipstick (6). Clean the area around theoil filler cap before you remove oil fi ller cap (5).Remove the oil filler cap (5). Fill the crankcasewith new oil. See Operation and MaintenanceManual, “Capacities (Refill)”. Clean filler cap (5)and install filler cap (5).

Note: If equipped, the Wiggins fluid service systemcan be used in order to quickly drain the enginecrankcase. The port for engine oil is located on thecontrol box for the Wiggins fluid service system. Thecontrol box is located on the left rear of the engineenclosure.

12. While the engine is stopped, check the “SAFESTARTING RANGE” side of dipstick (6). Maintainthe oil level within the gauge lines. If necessary,add oil.

13. Start the engine and allow the oil to warm. Checkthe engine for leaks.

14. Run the engine. Check the “SAFE OPERATINGRANGE” side of dipstick (6) while the engine isrunning. Maintain the oil level within the gaugelines. If necessary, add oil .

15. Stop the engine. Close access door (4). Closeaccess door (1.)

i01485299

Engine Overheating

SMCS Code: 1000; 1350; 1353

If your machine experiences an engine overheatingproblem, do the following maintenance proceduresin the order that is listed:

1. Operation and Maintenance Manual, “CoolingSystem Level − Check”

2. Operation and Maintenance Manual, “Radiator -Clean”

3. Operation and Maintenance Manual, “Belts -Inspect/Adjust/Replace”

4. Operation and Maintenance Manual, “CoolingSystem Pressure Cap - Clean/Replace”

5. Operation and Maintenance Manual, “Radiator Core - Clean”

6. Operation and Maintenance Manual, “CoolingSystem Water Temperature Regulator - Replace”

If the engine overheating problem is not corrected,consult your Caterpillar dealer.

i00357039

Engine Power Loss

SMCS Code: 1000; 1051; 1250

If your machine experiences an engine power loss,do the following maintenance procedures in the order listed:

See Operation and Maintenance Manual for thefollowing topics:

1. Engine Air Filter Service Indicator - Inspect

2. Engine Air Precleaner - Clean

3. Engine Air Filter Primary Element - Clean/Replace

4. Engine Air Filter Secondary Element - Replace

5. Fuel Tank Water and Sediment - Drain

6. Fuel Tank Cap and Strainer - Clean

7. Fuel System Primary Filter - Clean/Inspect/Replace

7/23/2019 SEBU6907-09 M_24H



Engine Valve Lash - Check

8. Fuel System Secondary Filter - Replace

If the engine power loss problem is not corrected,consult your Caterpillar dealer.

i01498587

Engine Valve Lash - Check

SMCS Code: 1105-535

Ensure that the engine can not be started whilethis maintenance is being performed. To help pre-vent possible injury, do not use the starting motor to turn the flywheel.

Hot engine components can cause burns. Allow

additional time for the engine to cool before mea-suring/adjusting valve lash clearance.

NOTICEOnly qualified service personnel should perform thismaintenance. Refer to the Service Manual or your Caterpillar dealer for the complete valve lash adjust-ment procedure.

Operation of Caterpillar engines with improper valveadjustments can reduce engine ef ficiency. This re-duced ef ficiency could result in excessive fuel usageand/or shortened engine component life.

NOTICEDo not use the yoke that comes out of the front of theengine in order to turn over the engine. Damage to thecrankshaft vibration damper can occur.

The adjustment is necessary due to the initial wear of the valve train components and to the seating of thevalve train components.

This maintenance is recommended by Caterpillar as part of a lubrication and preventive maintenanceschedule in order to help provide maximum engine

life.

Ensure that the engine is stopped before youmeasure the valve lash. To obtain an accuratemeasurement, allow the valves to cool before youperform this maintenance.

Remove the cover in order to access the rear of the engine. Check the valve lash. For the correctadjustment procedure, refer to Systems Operation,Testing and Adjusting, “Engine Valve Lash -Inspect/Adjust”.

i00128925

Engine Valve Rotators - Inspect

SMCS Code: 1109-040

When inspecting the valve rotators, protectiveglasses or face shield and protective clothingmust be worn, to prevent being burned by hot oilspray.

Inspect the engine valve rotators after the valveclearances have been set.

1. Start the engine and run the engine at low idle.

2. Watch the top surface of each valve rotator. When

the intake valve or the exhaust valve closes, theengine valve rotator should turn slightly.

If an intake valve or an exhaust valve fails to rotate,consult your Caterpillar Dealer.

i01328576

Ether Starting Aid Cylinder -Replace

SMCS Code: 1456-510-CD

The ether starting aid cylinder is mounted on the leftside of the engine compartment.


1. Open engine compartment access door (1).

7/23/2019 SEBU6907-09 M_24H


118 SEBU6907-09Maintenance SectionEvaporator Coil and Heater Coil - Clean


2. Loosen ether cylinder retaining clamp (2).Unscrew the ether cylinder.

3. Remove the used gasket. Install the new gasket. A new gasket is provided with each new ether cylinder.

4. Install the new ether cylinder. Tighten the ether cylinder hand tight. Tighten clamp (2) with your fingers.


i01827363

Evaporator Coil and Heater

Coil - CleanSMCS Code: 7309-070; 7343-070

The evaporator coil and the heater coil are locatedunder the seat in the cab.

1. Remove the seat.

2. Remove both of the covers.


3. Clean evaporator coil (1) and clean heater coil (2).Replace both coils.

4. Replace both of the covers and replace the seat.

Note: If you are operating the machine under harshconditions or with the cab door open, it may benecessary to clean the coils more often.

i01353750

Fan Drive Bearing and BeltTightener - Lubricate

SMCS Code: 1358-086-BD; 1358-086; 1359-086;1359-086-BD

Wipe the fittings before you apply lubricant to thefittings.


7/23/2019 SEBU6907-09 M_24H



Final Drive Lip Seal - Replace

The fittings for the fan drive bearing and the belttightener are located on the left, rear of the machine.The fittings are located near the oil filler tube.Lubricate fitting (1) in order to lubricate the fan drivebearing. Lubricate fitting (2) in order to lubricate thebelt tightener.

i01769015

Final Drive Lip Seal - Replace

SMCS Code: 4050-510-SA

1. Use a high pressure sprayer to clean the areaof tandem housing that is located between thetandem and the machine.


2. Remove the 24 bolts (1) that secure the

three-piece retainer (2) to the housing.

3. Remove the three-piece retainer and the existingseal. Discard the seal.

4. Install the new seal.

5. Install the three-piece retainer and 24 bolts.

i01860307

Fuel System - Fill

SMCS Code: 1250-544

Personal injury or death may result from failure toadhere to the following procedures.

Fuel leaked or spilled onto hot surfaces or electri-cal components can cause a fire.

Clean up all leaked or spilled fuel. Do not smokewhile working on the fuel system.

Turn the disconnect switch OFF or disconnect thebattery when changing fuel filters.

NOTICECare must be taken to ensure that fluids are containedduring performance of inspection, maintenance, test-ing, adjusting, and repair of the machine. Be preparedto collect the fluid with suitable containers beforeopening any compartment or disassembling any com-ponent containing fluids.


Reference: See Operation and Maintenance Manual,“Capacities (Refill)” for the capacity of the fuel tankfor your machine.


1. Clean fi ller cap (1) and the surrounding area.

2. Remove fi ller cap (1).

3. Fill fuel tank (2) with fuel.

4. Install filler cap (1).

7/23/2019 SEBU6907-09 M_24H


120 SEBU6907-09Maintenance SectionFuel System - Prime

Note: Prime the fuel system. See Operation andMaintenance Manual, “Fuel System - Prime” for moreinformation.

i01330090

Fuel System - PrimeSMCS Code: 1250-548; 1258-548


Turn the disconnect switch OFF when drainingand/or removing any fuel system components.

The priming pump for the fuel system is positionedin the engine compartment at the right rear of themachine.


1. Open engine access door (1) on the right side of the machine.


2. Check that fuel supply valves (2) are open. Thefuel supply valves are positioned in the enginecompartment on the right side of the engine. Closeengine access door (1).


3. Open engine access door (3) on the left side of the machine.



Dispose of all fluids according to local regulations and

mandates.


4. Open drain (5) on the water separator bowl.

5. Unlock priming pump plunger (4) by turningpriming pump plunger (4) counterclockwise. Pullout priming pump plunger (4).

6. Operate priming pump plunger (4) until fuel that isfree of air bubbles flows out of drain (5). Allow thefuel to flow into a suitable container.

7/23/2019 SEBU6907-09 M_24H



Fuel System Water Separator Element - Replace

Note: Discard any drained fluids according to localregulations.

7. Lock priming pump plunger (4) by turning primingpump plunger (4) clockwise.

8. Close drain (5).

9. Start the engine. Look for leaks around the primaryfuel fi lter and the secondary fuel filter.

10. Close engine access door (3).

i01866340

Fuel System Water Separator Element - Replace

SMCS Code: 1263-510-FQ



NOTICEDo not fill fuel filters with fuel before installing them.Contaminated fuel will cause accelerated wear to fuelsystem parts.



1. Open access door (1) on the right side of themachine. Close the fuel supply valves (2).

g00702996

Illustration 200

2. Open access door (3) on the left side of themachine.

NOTICECare must be taken to ensure that fluids are containedduring per formance of inspection, maintenance, test-ing, adjusting and repair of the product. Be prepared tocollect the fluid with suitable containers before open-ing any compartment or disassembling any compo-nent containing fluids.

Refer to Special Publication, NENG2500, “Caterpillar

Tools and Shop Products Guide” for tools and suppliessuitable to collect and contain fluids on Caterpillar products.


7/23/2019 SEBU6907-09 M_24H


122 SEBU6907-09Maintenance SectionFuel System Secondary Filter - Replace


3. In order to drain the primary filter, open drainvalve (6) on water separator bowl (5). The water separator bowl is under water separator element

(4). Catch the fuel in a suitable container.


4. Remove water separator element (4) and water separator bowl (5).

5. Remove water separator bowl (5) from water separator element (4).

6. Wash water separator bowl (5) in a cleannonflammable solvent. Use pressure air to drywater separator bowl (5).

7. Install the clean water separator bowl onto a newwater separator element.

8. Clean the fi lter housing base.

9. Coat the seal of the new water separator elementwith clean diesel fuel.

10. Install the water separator element onto the fi lter housing.

11. Open the fuel supply valves (2).


13. Prime the fuel system. See the Operation andMaintenance Manual, “Fuel System - Prime” for more information.


i01769106

Fuel System Secondary Filter -Replace

SMCS Code: 1261-510-SE



NOTICEDo not fill the fuel fi lters with fuel before installing thefuel filters. The fuel will not be filtered and could be

contaminated. Contaminated fuel will cause acceler-ated wear to fuel system parts.

The secondary filters for the fuel system arepositioned in the engine compartment at the left rear of the machine.



1. Open engine access door (1) on the right side of the machine. Close the fuel supply valves (2).

7/23/2019 SEBU6907-09 M_24H



Fuel Tank Cap and Strainer - Clean


2. Open engine access door (3) on the left side of the machine.



Dispose of all fluids according to local regulations and

mandates.


3. Remove secondary fuel filters (4).

4. Drain the fuel from secondary fuel filters (4) into asuitable container.


5. Clean the mounting base for secondary fuel fi lter (4). Make sure that you remove all of the old seal.

6. Coat the seal of a new secondary fuel fi lter withclean diesel fuel.

7. Install the new secondary fuel filter by hand.Tighten the new secondary fuel fi lter until the sealcontacts the mounting base. Then tighten the newsecondary fuel fi lter by an additional full turn (360degrees).

Use the rotation index marks on the newsecondary fuel filter as a guide for tightening thefilter. These rotation index marks are spaced atintervals of 1/4 turn.

8. Open the fuel supply valves (2).


10. Prime the fuel system. See the Operation andMaintenance Manual, “Fuel System - Prime” for more information.


i01863857

Fuel Tank Cap and Strainer -Clean

SMCS Code: 1273-070-STR; 1273-070-Z2

The fuel tank cap is positioned on the top left sideof the machine.


1. Remove f uel tank cap (1) and disassemble fueltank cap (1).

2. Inspect the seal on fuel tank cap (1) for damage. If the seal is damaged, replace the seal.

3. Remove the strainer from the fi ller opening.

7/23/2019 SEBU6907-09 M_24H


124 SEBU6907-09Maintenance SectionFuel Tank Water and Sediment - Drain

4. Wash the strainer and fuel tank cap (1) in cleannonflammable solvent.

5. Disassemble vent assembly (2). Wash ventassembly (2) in clean nonflammable solvent.

6. Inspect vent assembly (2) for damage.

7. Reassemble vent assembly (2). If vent assembly(2) is damaged, replace the vent assembly.

8. Apply a light coat of oil to vent assembly (2). Installvent assembly (2).

9. Assemble fuel tank cap (1).

10. Install the strainer.

11. Install fuel tank cap (1).

i01330271

Fuel Tank Water and Sediment- Drain

SMCS Code: 1273-543-M&S


Drain plug (1) is located at the left side of the machineunder the fuel tank.

1. Remove drain plug (1) and allow the water and

sediment to drain into a suitable container.


2. Install drain plug (1).

i01692877

Fuses - Replace

SMCS Code: 1417-510


The fuses are located behind the fuse panel.

Fuses – Fuses protect the electrical system fromdamage that is caused by overloaded circuits.Replace the fuse if the element is separated. Checkthe circuit if the element is separated in a new fuse.Repair the circuit.

NOTICE Always replace fuses with the same type and capacityfuse that was removed. Otherwise, electrical damagecould result.

NOTICEIf it is necessary to replace fuses frequently, an elec-trical problem may exist.

Contact your Caterpillar dealer.

The fuse panel is located in the base of the steeringcolumn. Several other fuses are located at theoperator’s right side.


7/23/2019 SEBU6907-09 M_24H



Fuses - Replace

Flood Lights (Blade) (1) – 10 Amp

Front Flood Lights (2) – 10 Amp

Rear Flood Lights (3) – 10 Amp

Flood Lights (Ripper) (4) – 10 Amp

Parking Brake (5) – 10 Amp

Electronic Monitoring System (6) – 10 Amp

Blade Cushion (7) – 10 Amp

Seat (8) – 15 Amp

Air Conditioning (9) – 15 Amp


Key Start Switch (10) – 10 Amp

Tail Lights (11) – 10 Amp

Radio (12) – 10 Amp

Lighter (13) – 10 Amp

Converter (14) – 15 Amp

Horn (15) – 10 Amp

Turn Signals (16) – 10 Amp

Spare (17) –


Front Wiper and Washer (18) – 15 Amp

Rear Wiper and Washer (19) – 10 Amp

Radio and Converter (20) – 15 Amp

Spare (21) –

7/23/2019 SEBU6907-09 M_24H


126 SEBU6907-09Maintenance SectionHydraulic System Oil - Change

Rotating Beacon and Dome Lamp (22) –10 Amp

Fan (23) – 10 Amp

i01902063

Hydraulic System Oil - Change

SMCS Code: 5050-044; 5056-044; 5095-044

Note: If the hydraulic oil is not being monitoredby the Caterpillar S·O·S Oil Analysis program or an equivalent oil sampling program, change thehydraulic oil at every 2000 service hour interval.


Operate the machine until the oil is warm.

Park the machine on a level surface with the frontwheels straight ahead. Lower all attachments to theground. Apply a slight downward pressure to theattachments. Center the articulation of the machineand install the frame lock link. The frame lock linkmust move freely in the frame. Move the front wheelsto vertical. Install the wheel lean locking bolt. Engagethe parking brake. Stop the engine.

The hydraulic system oil tank is positioned behindthe operator station at the center of the machine.


At operating temperature, the hydraulic oil tank is

hot and under pressure.

Hot oil and components can cause personal injury. Do not allow hot oil or components to contactskin.

Before installation or removal of any hydraulic testequipment, relieve the pressure in the hydraulictank by slowly loosening the filler cap.

1. Slowly remove the hydraulic oil filler cap (1).


7/23/2019 SEBU6907-09 M_24H



Hydraulic System Oil Filter - Replace

NOTICECare must be taken to ensure that fluids are containedduring performance of inspection, maintenance, test-ing, adjusting and repair of the product. Be prepared tocollect the fluid with suitable containers before open-

ing any compartment or disassembling any compo-nent containing fluids.



2. The drain plug (3) is positioned in the bottom of the hydraulic oil tank. Remove drain plug (3).

Drain the oil into a suitable container.

3. Replace the filter for the hydraulic system oil. SeeOperation and Maintenance Manual, “HydraulicSystem Oil Filter - Replace”.

4. Remove the fi ller screen from the fi ller tube in thehydraulic oil tank. Wash the fi ller screen in clean,nonflammable solvent. Allow the filler screen todry.

5. Clean drain plug (3) and install drain plug (3).

6. Install the filler screen.

7. Fill the hydraulic system oil tank. See Operationand Maintenance Manual, “Capacities (Refill)”.

8. Inspect the fi ller cap gasket. If the fi ller cap gasketis damaged, replace the fi ller cap gasket.

9. Install oil filler cap (1).

10. Start the engine. Run the engine for a fewminutes.

11. Maintain the oil level above the “ADD” mark insight gauge (2). If necessary, add oil through the

filler tube (1).

Note: The oil must be free from bubbles. If there arebubbles in the oil, then air is entering the hydraulicsystem. Inspect the suction hoses and inspect theclamps.


13. If necessary, tighten any loose clamps and anyloose connections. Replace any damaged hoses.

i01693063

Hydraulic System Oil Filter -Replace

SMCS Code: 5056-510-FI; 5068-510


Park the machine on a level surface with front wheelsstraight ahead. Lower all attachments to the ground.

Apply a slight downward pressure to the attachments.Center the articulation of the machine and installthe frame lock link. The frame lock link must movefreely in the frame. Move the front wheels to verticaland install the wheel lean locking bolt. Engage theparking brake. Stop the engine.

Clean the area around the fi ller cap before removingthe filler cap. Clean the area around the filter cover before you remove the fi lter cover.


At operating temperature, the hydraulic oil tank ishot and under pressure.



1. Slowly remove hydraulic oil filler cap (2) in order to relieve the tank pressure.

7/23/2019 SEBU6907-09 M_24H


128 SEBU6907-09Maintenance SectionHydraulic System Oil Level - Check

2. Remove fi lter cover (1) from the hydraulic systemoil tank.

3. Inspect the seal for the cover (1). If necessary,replace the seal.




4. Remove the fi lter element and discard the fi lter element.


5. Install a new filter element.

6. Install cover (1).


7. Maintain the hydraulic oil level to the “FULL” markon sight gauge (3).

8. Inspect the fi ller cap gasket. If the fi ller cap gasketis damaged, replace the filler cap gasket. Installthe oil filler cap (2).

i01693038

Hydraulic System Oil Level -Check

SMCS Code: 5050-535-FLV; 5056-535-FLV;

5095-535-FLV; 7479-535


Operate the machine until the oil is warm.

Park the machine on a level surface with the frontwheels straight ahead. Lower all attachments to theground. Apply a slight downward pressure to theattachments. Center the articulation of the machineand install the frame lock link. The frame lock linkmust move freely in the frame. Move the front wheelsto vertical and install the wheel lean locking bolt.Engage the parking brake. Stop the engine.

The hydraulic oil tank is located behind the operator station at the center of the machine. The hydraulictank sight gauge is positioned on the left side of theoil tank.


1. Maintain the oil level to the “FULL” mark onhydraulic tank sight gauge (2).

7/23/2019 SEBU6907-09 M_24H



Hydraulic System Oil Sample - Obtain

At operating temperature, the hydraulic oil tank ishot and under pressure.



2. If necessary, add oil. Slowly loosen the filler cap inorder to relieve the tank pressure. Remove filler cap (1). Add oil through the filler tube.

3. Clean fi ller cap (1) and install filler cap (1).

i01863865

Hydraulic System Oil Sample- Obtain

SMCS Code: 4129-008; 5050-008; 5056-008;5095-008; 5095-SM

Hot oil and hot components can cause personalinjury. Do not allow hot oil or hot components to

contact the skin.


Sampling valve (1) is located underneath thehydraulic tank.


i01353883

Kingpin Bearings - Lubricate

SMCS Code: 4314-086

The kingpin bearings are located on the inside of thefront wheels.

The automatic lubrication system provides lubricationfor the kingpin bearings. If a remote line becomesdamaged, install a fitting in place of the remote lineand lubricate the bearings at the fitting until the linecan be replaced.



The lubrication fittings for the right side kingpin arelocated in the bank of fittings that is on the front,right side of the machine. Lubricate fitting (1) in order to lubricate the upper kingpin bearing on the rightside of the machine. Lubricate fitting (2) in order tolubricate the lower kingpin bearing that is on the rightside of the machine.


Lubricate fitting (3) in order to lubricate the upper kingpin bearing that is on the left side of the machine.Lubricate fitting (4) in order to lubricate the lower kingpin bearing that is on the left side of the machine.

7/23/2019 SEBU6907-09 M_24H


130 SEBU6907-09Maintenance SectionMachine Structure - Inspect

i01353982

Machine Structure - Inspect

SMCS Code: 3260-040; 5207-040; 6170-040;7050-040

Inspect the machine for cracks in each of theindicated locations.


Front Frame


Front Fr ame (Detail A)


Front Frame (Detail B)


Rear Frame


Top View of Circle

7/23/2019 SEBU6907-09 M_24H



Moldboard Wear Strip - Inspect/Adjust/Replace


Bottom View of Circle


Top View of Front Axle


Drawbar

i01331857

Moldboard Wear Strip -Inspect/Adjust/Replace

SMCS Code: 6174-025; 6174-040; 6174-510

1. Rotate the blade. Position the blade at an angle of 90 degrees to the frame. Lower the blade to theground. Stop the engine.


2. Remove the top retaining plates (1) and thebottom retaining plates (2). Visually inspect thewear strips. If the wear strips are worn close to themoldboard, replace the wear strips.


(3) Wear strip (top)

3. When wear strip (3) is installed, the longer end of wear strip (3) should be installed in the positionthat is shown in illustration 229.

7/23/2019 SEBU6907-09 M_24H


132 SEBU6907-09Maintenance SectionOil Filter - Inspect


(4) Wear strip (bottom)

4. When wear strip (4) is installed, the longer end of wear strip (4) should be installed in the position

that is shown in illustration 230.

5. Install shims between the moldboard rail and thewear strips at the location of minimum clearance.

Add shims in order to provide a clearance of 0.13 mm to 0.89 mm (.005 inch to .035 inch).

Note: The shims that are required should be dividedevenly between the upper wear strips and the lower wear strips.

6. Install top retaining plates (1) and install bottomretaining plates (2).

7. Start the engine. Raise the blade so that the bladewill not contact the ground. Sideshift the bladethrough the entire limit of travel. Measure theclearance between the wear strips and the blade.This will allow you to determine the location of theminimum clearance.

8. Stop the engine.

i02106227

Oil Filter - Inspect

SMCS Code: 1308-507; 3004-507; 3067-507;5068-507

Inspect a Used Filter for Debris


The element is shown with debris.

Use a filter cutter to cut the filter element open.Spread apar t the pleats and inspect the element for metal and for other debris. An excessive amount of debris in the filter element can indicate a possiblefailure.

If metals are found in the filter element, a magnet can

be used to differentiate between ferrous metals andnonferrous metals.

Ferrous metals can indicate wear on steel parts andon cast iron parts.

Nonferrous metals can indicate wear on thealuminum parts of the engine such as main bearings,rod bearings, or turbocharger bearings.

Small amounts of debris may be found in the filter element. This could be caused by friction and bynormal wear. Consult your Caterpillar dealer in order to arrange for further analysis if an excessive amount

of debris is found.

Using an oil filter element that is not recommendedby Caterpillar can result in severe engine damageto engine bearings, to the crankshaft, and to other parts. This can result in larger particles in unfilteredoil. The particles could enter the lubricating systemand the particles could cause damage.

7/23/2019 SEBU6907-09 M_24H



Radiator - Clean

i01354187

Radiator - Clean

SMCS Code: 1353-070; 1805-070; 1810-070

g00714817

Illustration 232

1. Remove the access cover (1) on the left rear of the machine. Remove the access cover on theright rear of the machine.

2. Remove any dirt from the area around the radiator.Remove any debris from the area around theradiator.

3. Install the access covers.

i01671005

Radiator Core - CleanSMCS Code: 1353-070; 1353-070-KO

You can use compressed air, high pressure water,or steam to remove dust and other debris from theradiator core. However, the use of compressed air is preferred.

See Special Publication, SEBD0518, “Know Your Cooling System” for the complete procedure for cleaning the radiator core.

i01860283

Refrigerant Dryer - Replace

SMCS Code: 7322-510

Personal injury can result from contact with refrig-erant.

Contact with refrigerant can cause frost bite. Keepface and hands away to help prevent injury.

Protective goggles must always be worn when re-frigerant lines are opened, even if the gauges in-dicate the system is empty of refrigerant.

Always use precaution when a fitting is removed.Slowly loosen the fitting. If the system is still un-

der pressure, release it slowly in a well ventilatedarea.

Personal injury or death can result from inhalingrefrigerant through a lit cigarette.

Inhaling air conditioner refrigerant gas through alit cigarette or other smoking method or inhalingfumes released from a flame contacting air con-ditioner refrigerant gas, can cause bodily harm or death.

Do not smoke when servicing air conditioners or wherever refrigerant gas may be present.

Use a certified recovery and recycling cart to prop-erly remove the refrigerant from the air condition-ing system.


In-line refrigerant dryer (1) is located underneath thecab on the left side of the machine.

Refer to Service Manual, SENR5664, “In-LineRefrigerant Dryer - Remove and Install” for thereplacement procedure of the in-line refrigerant dryer.

7/23/2019 SEBU6907-09 M_24H


134 SEBU6907-09Maintenance SectionRipper Linkage and Cylinder Bearings - Lubricate

Note: When you operate the machine in a climatewith high humidity, replace the in-line refrigerant dryer after every 1000 service hours or 6 months.

i01693202

Ripper Linkage and Cylinder Bearings - Lubricate

SMCS Code: 5352-086-E2; 6313-086-BD


The ripper is lubricated at one central location. Abank of twelve fittings (1) is located on the left sideof the ripper. If any of the remote fittings becomedamaged, install fittings and lubricate the componentat the fittings until the line can be replaced.

Wipe all fittings before lubricating.

Lubricate ten fittings. The fitting that is farthest to therear of the machine on each bank of six fittings isunused.

i01563909

Ripper Tip - Inspect/Replace

SMCS Code: 6808-040; 6808-510

Personal injury or death can result from the ripper falling.

Block the ripper before changing teeth.

Retainer pin, when struck with force, can fly outand cause injury to nearby people.

Make sure the area is clear of people when drivingretainer pins.

To avoid injury to your eyes, wear protectiveglasses when striking a retainer pin.

Inspect the ripper tips. Replace the ripper tips if thetips are damaged or the tips are worn excessively.

1. Block up the ripper to a height that is adequate for the removal of the tips.


2. Drive out the retainer pin from the retainer sideof the ripper tip. Remove the ripper tip and theretainer.

3. Clean the adapter, the retainer pin, and theretainer. Install the retainer in the groove.

4. Install the new ripper tip over the retainer.

5. Drive the retainer pin through the retainer, throughthe adapter, and through the ripper tip from theopposite side of the retainer.

6. Repeat Step 2 through Step 5 in order to replace

additional ripper tips.

7. Raise the ripper. Remove the block. Lower theripper to the ground.

7/23/2019 SEBU6907-09 M_24H



Rollover Protective Structure (ROPS) - Inspect

i01336682

Rollover Protective Structure(ROPS) - Inspect

SMCS Code: 7323-040; 7325-040

NOTICEDo not attempt to straighten the ROPS structure. Donot repair the ROPS by welding reinforcement platesto the structure.

If there are any cracks in the welds, in the castings, or in any metal section of the ROPS, consult your Cater-pillar dealer for repairs.


1. There are four retaining pins (1) for the ROPS.

Two retaining pins are located on each side of thecab. Each retaining pin (1) is held in place witha smaller pin (2).

2. Inspect all the pins. Replace any damaged pinsor any missing pins with only original equipmentparts.

3. Inspect the ROPS for any loose bolts or anydamaged bolts. Replace any damaged bolts or any missing bolts with only the original equipmentparts.

Note: Apply oil to all ROPS bolt threads before you

install the bolts for the ROPS. Failure to apply oil canresult in improper bolt torque.

4. When you operate the machine on a roughsurface, the ROPS may rattle or the ROPS maymake a noise. If the ROPS rattles or if the ROPSmakes a noise, replace the ROPS mountingsupports.

i02429589

Seat Belt - Inspect

SMCS Code: 7327-040

Always check the condition of the seat belt and thecondition of the seat belt mounting hardware beforeyou operate the machine. Replace any parts that aredamaged or wor n before you operate the machine.


Typical example

Check the seat belt mounting hardware (1) for wear or for damage. Replace any mounting hardware thatis worn or damaged. Make sure that the mountingbolts are tight.

Check buckle (2) for wear or for damage. If the buckle

is worn or damaged, replace the seat belt.

Inspect the seat belt (3) for webbing that is worn or frayed. Replace the seat belt if the seat belt is wornor frayed.

Consult your Caterpillar dealer for the replacement of the seat belt and the mounting hardware.

Note: Within three years of the date of installation or within five years of the date of manufacture, replacethe seat belt. Replace the seat belt at the date whichoccurs first. A date label for determining the age of the seat belt is attached to the seat belt, the seat belt

buckle, and the seat belt retractor.

If your machine is equipped with a seat beltextension, also perform this inspection procedure for the seat belt extension.

7/23/2019 SEBU6907-09 M_24H


136 SEBU6907-09Maintenance SectionSeat Belt - Replace

i02429594

Seat Belt - Replace

SMCS Code: 7327-510

Within three years of the date of installation or withinfive years of the date of manufacture, replace theseat belt . Replace the seat belt at the date whichoccurs first. A date label for determining the age of the seat belt is attached to the seat belt, the seat beltbuckle, and the seat belt retractor.


(1) Date of installation (retractor)(2) Date of installation (buckle)(3) Date of manufacture (tag) (fully extended web)(4) Date of manufacture (underside) (buckle)

Consult your Caterpillar dealer for the replacement of the seat belt and the mounting hardware.

If your machine is equipped with a seat beltextension, also perform this replacement procedurefor the seat belt extension.

i02601320

Steering Accumulator - Check(If Equipped)

SMCS Code: 4331-535


The steering accumulator is located on the right side of the frameunder the engine compartment.

Steer the machine to the left and steer the machineto the right. If the movement of the steering systemis abnormal, check the nitrogen precharge. Operatethe hydraulic equipment. If the movement of thesteering is abnormal, check the nitrogen precharge. If necessary, add nitrogen. Refer to Systems Operation,Testing and Adjusting, SENR1429, “Accumulator (Steering) - Test and Charge” for the followinginformation: the correct checking procedure, the

correct filling procedure, and the recommendedpressure. Your Caterpillar dealer has the appropriatetools for measuring the precharge pressure of thesteering accumulator. Only use dry nitrogen gas torecharge the steering accumulator.

i01355081

Steering Cylinder Ends -Lubricate

SMCS Code: 4303-086

The automatic lubrication system provides lubricationfor the steering cylinders. If a remote line becomesdamaged, install a fitting in place of the remote lineand lubr icate the steering cylinder at the fitting untilthe remote line can be replaced.

7/23/2019 SEBU6907-09 M_24H



Steering Linkage - Lubricate


The fittings for the steering cylinder (right side) are on the rightside of the machine.

Lubricate fitting (1) in order to lubricate the rod end of

the steering cylinder on the right side of the machine.Lubricate fitting (2) in order to lubricate the headend of the steering cylinder on the right side of themachine.


The fi ttings for the steering cylinder (left side) are on the left sideof the machine.

Lubricate fitting (3) in order to lubricate the rod end of the steering cylinder on the left side of the machine.Lubricate fitting (4) in order to lubricate the head endof the steering cylinder on the left side of the machine.

i01355013

Steering Linkage - Lubricate

SMCS Code: 4318-086

The automatic lubrication system provides lubricationfor the steering linkage. If a remote line becomesdamaged, install a fitting in place of the remote lineand lubricate the steering linkage at the fitting untilthe line can be replaced.


The fittings for the steering linkage (right side) are on the rightside of the machine.

Lubricate fitting (1) in order to lubricate the steering

linkage at the right side of the machine.


The fi ttings for the steering linkage (left side) are on the left sideof the machine.

Lubricate fitting (2) in order to lubricate the steeringlinkage at the left side of the machine.

7/23/2019 SEBU6907-09 M_24H


138 SEBU6907-09Maintenance SectionTandem Breather - Clean/Replace

i01693639

Tandem Breather -Clean/Replace

SMCS Code: 4062-070-BRE; 4062-510-BRE


1. Remove breathers (1) from both tandems.

2. Wash breathers (1) in clean, nonflammablesolvent.

3. Use pressure air to dry breathers (1).

4. Install breathers (1) in both tandems.

Note: Replace breathers (1) if the breathers aredamaged.

i01693504

Tandem Drive Oil - Change

SMCS Code: 4071-510


The tandem drive housings are located between the rear wheelson each side of the machine.





1. Remove drain plug (3) from the bottom of tandemdrive housing (1). Allow the oil to drain into asuitable container.

7/23/2019 SEBU6907-09 M_24H


7/23/2019 SEBU6907-09 M_24H


140 SEBU6907-09Maintenance SectionTandem Drive Oil Sample - Obtain

i01863867

Tandem Drive Oil Sample -Obtain

SMCS Code: 4071-008


The oil sump is located behind the access door near the top of the tandem housing.


i01863872

Tire Inflation - Check

SMCS Code: 4203-535-AI; 4203-535-PX


Measure the pressure on each tire. Consult your tiredealer f or the correct load rating and for the correctoperating pressures.

If necessary, inflate the tires. Refer to the followingadditional information about tire inflation:

• Operation and Maintenance Manual, “Tire Inflationwith Nitrogen”

• Operation and Maintenance Manual, “Tire ShippingPressure”

• Operation and Maintenance Manual, “Tire InflationPressure Adjustment”

• Operation and Maintenance Manual, “TireInformation”

i01693614

Transmission and DifferentialOil - Change

SMCS Code: 3080-510; 3258-510-OC

Clean the area around the differential drain plugbefore the differential drain plug is removed. Cleanthe area around the drain plug of the transmissioncase before the drain plug is removed. Clean the areaaround the dipstick before the dipstick is removed.Clean the area around the filler cap before the fi ller cap is removed.





Operate the engine until the transmission oil is warmand the differential oil is warm. Park the machine ona level surface and engage the parking brake. Lower the blade and apply slight downward pressure to theblade. Stop the engine.

7/23/2019 SEBU6907-09 M_24H



Transmission and Differential Oil - Change

Note: Drain the transmission case while the oil iswarm. Drain the differential case while the oil is warm.This allows waste particles that are suspended in theoil to drain. As the oil cools, the waste particles willsettle to the bottom of the case. The particles will notbe removed by draining the oil and the particles will

recirculate in the lubrication system with the new oil.


Transmission

1. Remove the drain plug (1) for the transmissioncase. Drain the oil into a suitable container.


2. Change the filter element and clean the screens.

See Operation and Maintenance Manual,“Transmission and Differential Oil Filter andScreen” in the Maintenance Interval Schedule.



4. Open engine access door (2) on the right side of the machine.


5. Fill the transmission case with oil through fi ller tube (3). See Operation and Maintenance Manual,“Capacities (Refill)”.

6. Remove transmission breather (5) and discardtransmission breather (5). Install a newtransmission breather.

7. Start the engine and run the engine at lowidle. Inspect the transmission and differentialcomponents for leaks.


8. Engage the transmission modulator pedal (6).Slowly operate the transmission direction andspeed control lever (7) in order to circulate the oil.

9. With the engine at low idle, maintain the oil levelbetween the marks on dipstick (4). If necessary,add oil through filler tube (3).



7/23/2019 SEBU6907-09 M_24H


142 SEBU6907-09Maintenance SectionTransmission and Differential Oil Filter and Screens - Replace/Clean

Differential and Bevel Gear


Note: The oil change interval for the differential canbe extended if the differential oil is monitored with the

Scheduled Oil Sampling program.

1. Remove diff erential drain plug (10). Drain the oilinto a suitable container.



3. Remove differential filler plug (9). Fill thedifferential to the bottom of the filler plug opening.See Operations and Maintenance Manual,“Lubricant Viscosities”. See Operations and

Maintenance Manual, “Capacities (Refill)”.

4. Clean filler plug (9) and install fi ller plug (9).

5. Remove differential breather (8) and washdifferential breather (8) in clean, nonflammablesolvent. Install the clean breather.

6. Operate the machine on level ground for a fewminutes.

7. Check for leaks.

8. Recheck the oil level.

9. If necessary, add oil . Install filler plug (9).

i01693517

Transmission and DifferentialOil Filter and Screens -Replace/Clean

SMCS Code: 3030-070-Z3; 3030-510-Z3;3067-070; 3067-510; 3258-070-FI; 3258-070-Z3;3258-510-FI; 3258-510-Z3



1. Install frame lock link (1) on the right side of themachine between the front frame and the rear frame.


2. Open engine compartment access cover (2) onthe left side of the machine.

7/23/2019 SEBU6907-09 M_24H



Transmission and Differential Oil Filter and Screens - Replace/Clean


3. Remove drain plug (3) from transmission oil filter housing (4). Allow the oil to drain into a suitablecontainer.

Note: Discard any drained fluids according to localregulations. Discard any fi lter elements according tolocal regulations.

4. Remove the oil filter housing (4).

5. Remove the used element and discard the usedelement.

6. Clean transmission oil fi lter housing (4) and drainplug (3) with a clean, nonflammable solvent.

7. Clean the base of transmission oil filter housing

(4).

8. Insert a new fi lter element into transmission oilfilter housing (4).

9. Replace the fi lter housing base seal.

10. Install transmission oil fi lter housing (4).

11. Install drain plug (3) in transmission oil filter housing (4).


12. Slowly remove the cover (5) for the magneticscreen housing. Allow the oil to drain into asuitable container.


13. Remove the suction screen. Remove themagnetic screen tube assemblies.

14. Separate the magnets and the tube assemblyfrom the screen. Wash the screen in clean,nonflammable solvent and wash the tubeassembly in clean, nonflammable solvent. Allowthe screen to dry and allow the tube assembly todry.

NOTICEDo not drop or rap magnets on hard objects, or dam-age can result. Replace damaged magnets.

15. Clean the magnets with a cloth or clean themagnets with a stiff bristle brush. Allow themagnets to dry.

16. Install the magnets into the screen and install thetube assembly into the screen.

17. Install the screen.

18. Inspect the cover seals. If the cover seals aredamaged, replace the cover seals.

19. Install the covers and tighten the bolts.

20. Fill the transmission case with oil through the fi ller tube. See Operation and Maintenance Manual,“Capacities (Refill)”.


22. Start the engine.

23. With the parking brake engaged, run the engineat low idle in order to circulate the transmission oil.

24. Inspect all of the transmission components for leaks.

7/23/2019 SEBU6907-09 M_24H


144 SEBU6907-09Maintenance SectionTransmission and Differential Oil Level - Check


25. With the engine at low idle, maintain the oil levelbetween the marks on dipstick (6). If necessary,add the oil through filler tube (7).


27. Remove frame lock link (1) and store frame locklink (1).

i01693622

Transmission and DifferentialOil Level - Check

SMCS Code: 3030-535-FLV; 3080-535-FLV;3258-535-FLV


Differential and Bevel Gear


1. Remove differential fi ller plug (1).

2. Maintain the oil level to the bottom of the filler plugopening.

3. Install differential filler plug (1).

Transmission


1. Open the right side engine access door (2).

2. Clean the area around the dipstick beforeremoving the dipstick. Clean the area around thefiller cap before you remove the fi ller cap.

3. Start the engine. Run the engine at low idle.


4. Remove dipstick (3). Maintain the oil between the“LOW” mar k and the “FULL” mark on dipstick (3).Replace dipstick (3).

5. If necessary, remove filler cap (4) and add oil.

6. Clean fi ller cap (4) and install fi ller cap (4).

7. Stop the engine.


7/23/2019 SEBU6907-09 M_24H



Transmission and Differential Oil Sample - Obtain

i01863878

Transmission and DifferentialOil Sample - Obtain

SMCS Code: 3006-008; 3030-008; 3080-008;

3258-008; 7542


Sampling valve (1) for the differential oil is located onthe differential lock pump. The differential lock pumpis located in the engine compartment.


Sampling valve (2) for the transmission oil is locatedon the transmission pump.


i01829992

Wheel Bearing Oil (Front) -Change

SMCS Code: 4205-044; 4208-044; 4234-044;

7551-044-WHL


The front wheel bearings are located on the inner side of each front wheel. The check/fill plugs (1) arelocated on the housings of each front wheel bearing.

Clean the surface around each check/fill plug beforeyou change the oil.

NOTICECare must be taken to ensure that fluids are contained

during performance of inspection, maintenance, test-ing, adjusting and repair of the product. Be prepared tocollect the fluid with suitable containers before open-ing any compartment or disassembling any compo-nent containing fluids.




2. Use a 1U-7683 Suction Gun in order to removethe oil from the housing for the wheel bearing.

3. Add oil to the housing for the wheel bearing untilthe oil level is at the bottom of the opening for check/fill plug (1).


5. Repeat Step 1 through Step 4 for the other wheelbearing.

7/23/2019 SEBU6907-09 M_24H


146 SEBU6907-09Maintenance SectionWheel Bearing Oil Level (Front) - Check

i01341134

Wheel Bearing Oil Level (Front)- Check

SMCS Code: 4205-535-FLV; 4208-535-FLV;

4234-535-FLV; 7551-535-FLV

The front wheel bearings are located on the inner side of each fr ont wheel. The check/fill plugs (1) arelocated on the housings of each front wheel bearing.

Clean the sur face area around each check/fill plugbefore you check the oil level.



2. Maintain the oil level to the bottom of the openingfor check/fill plug (1). If necessary, add oil.


4. Repeat Step 1 through Step 3 for the other wheelbearing.

i01354364

Wheel Lean Bar Bearings -Lubricate


The automatic lubrication system provides lubricationfor the wheel lean bar. If a remote line becomesdamaged, install a fitting in place of the remote lineand lubricate the wheel lean bar at the fitting untilthe line can be replaced.


The fi ttings for the wheel lean bar (right side) are on the right sideof the machine.

Lubricate fitting (1) in order to lubricate the wheel

lean bar at the right side of the machine.


The fittings for the wheel lean bar (left side) are on the left sideof the machine.

Lubricate fitting (2) in order to lubricate the wheellean bar at the left side of the machine.

i01354426

Wheel Lean Bearings -Lubricate


The automatic lubrication system provides lubricationfor the wheel lean arm bearings. If a remote linebecomes damaged, install a fitting in place of theremote line and lubricate the wheel lean arm bearingsat the fitting until the line can be replaced.

7/23/2019 SEBU6907-09 M_24H



Wheel Lean Cylinder Bearings - Lubricate


The fittings for the wheel lean arm bearings (right side) are onthe right side of the machine.

Lubricate fittings (1), (2), and (3) in order to lubricate

the wheel lean arm bearings for the right side of themachine.


The fi ttings for the wheel lean arm bearings (left side) are on theleft side of the machine.

Lubricate fittings (4), (5), and (6) in order to lubricatethe wheel lean arm bearings for the left side of themachine.

i01354944

Wheel Lean Cylinder Bearings- Lubricate


The automatic lubrication system provides lubricationfor the wheel lean cylinders. If a remote line becomesdamaged, install a fitting in place of the remote lineand lubricate the wheel lean cylinder at the fittinguntil the line can be replaced.


The fi ttings for the wheel lean cylinder mounting (right side) are onthe right side of the machine.

Lubricate fitting (1) in order to lubricate the rod end

of the wheel lean cylinder on the right side of themachine. Lubricate fitting (2) in order to lubricate thehead end of the wheel lean cylinder on the right sideof the machine.


The fittings for the wheel lean cylinder mounting (left side) areon the left side of the machine.

Lubricate fitting (3) in order to lubricate the rod endof the wheel lean cylinder on the left side of themachine. Lubricate fitting (4) in order to lubricate thehead end of the wheel lean cylinder on the left sideof the machine.

7/23/2019 SEBU6907-09 M_24H


148 SEBU6907-09Maintenance SectionWindow Washer Reservoir - Fill

i01341175

Window Washer Reservoir -Fill

SMCS Code: 7306-544-KE

NOTICEUse Caterpillar nonfreezing window washer solventor a commercially available windshield washer fluidin order to prevent freezing of the windshield washer system.


The window washer reservoirs (1) are located onthe front fr ame of the machine. The reservoirs arelocated below the steps to the right side of theoperator’s compartment.

1. Remove the caps of the window washer reservoirs(1).

2. Fill the window washer reservoirs through the fi ller openings.

3. Replace the caps of the window washer reservoirs(1).

i01694230

Window Wiper -Inspect/Replace

SMCS Code: 7305-040; 7305-510


Inspect the upper front windshield wiper blade (1).If the machine is equipped with a wiper for the rear window, inspect the wiper blade for the rear window(2). If any of the wiper blades are streaking any of thewindshields, replace the wiper blade. Also, replacethe wiper blade if the wiper blade is streaking therear window.

i01494089

Windows - CleanSMCS Code: 7310-070; 7340-070

SEBU6907-09 M_24H

Documents

Transcript of SEBU6907-09 M_24H