Service TrainingMeeting Guide 714 SESV1714

March 2000

TECHNICAL PRESENTATION

D11R TRACK-TYPE TRACTOR

D11R CD CARRYDOZER

ELECTRO-HYDRAULIC IMPLEMENT SYSTEMS

D11R TRACK-TYPE TRACTORD11R CD CARRYDOZER ELECTRO-HYDRAULIC IMPLEMENT SYSTEMS

MEETING GUIDE 714 SLIDES AND SCRIPT

AUDIENCE

Level II--Service personnel who understand the principles of machine systems operation, diagnosticequipment, and procedures for testing and adjusting.

CONTENT

This presentation describes the operation of the electronically controlled implement systems for theD11R Track-type Tractor and the D11R CD Carrydozer. The functions and operation of the keypad arealso covered.

OBJECTIVES

After learning the information in in this presentation, the serviceman will be able to:

1. locate and identify all major components in the implement systems;2. locate and identify all filters, drains, and test points;3. explain the operation of each component in the implement systems;4. trace the flow of oil through the implement hydraulic system; and5. use the keypad to select the operating parameters and system features.

REFERENCES

D11R CD Track-type Tractor Service Manual (AAF 1-Up) RENR3665D11R Track-type Tractor Service Manual (7PZ 1-Up) RENR2095

PREREQUISITES

Interactive Video Course "Fundamentals of Mobile Hydraulics" (CD ROM) TEMV9001STMG 546 "Graphic Fluid Power Symbols" SESV1546

SUPPLEMENTARY TRAINING MATERIAL

STMG 700 "D11R CD Carrydozer--Implement Systems" SESV1700Video Tape "D11R Track-type Tractor/D11R CD Carrydozer--Introduction" SEVN4173Booklet "VIDS Message Center and Keypad Operator Instruction" TEJB6017

Estimated Time: 2 HoursVisuals: 42 (2 X 2) SlidesServiceman Handouts: 17 Drawings/ChartsForm: SESV1714Date: 3/00

© 2000 Caterpillar Inc.

TABLE OF CONTENTS

INTRODUCTION ..................................................................................................................5

ELECTRONIC CONTROL SYSTEM...................................................................................6

HYDRAULIC CONTROL SYSTEM ....................................................................................9Fan Drive Hydraulic System...........................................................................................13Electro-Hydraulic Pilot System ......................................................................................16Bulldozer Lift Circuit......................................................................................................18Quick-drop Valves (D11R) .............................................................................................26Bulldozer Tilt Circuit ......................................................................................................32Dual Tilt Valve (D11R)...................................................................................................35Dual Tilt Valve (Carrydozer) ..........................................................................................42Ripper and Pilot Circuits.................................................................................................48

VITAL INFORMATION DISPLAY SYSTEM (VIDS) .......................................................54Keypad Operation ...........................................................................................................56Setup ...............................................................................................................................60

CONCLUSION.....................................................................................................................85

SLIDE LIST..........................................................................................................................86

SERVICEMANÕS HANDOUTS ..........................................................................................87

STMG 714 - 3 -3/00

INSTRUCTOR NOTES

STMG 714 - 4 -3/00

¥ 3508B engine

1

INTRODUCTION

This presentation discusses the major design features of the implementsystems for the D11R Track-type Tractor and the D11R CD Carrydozer(Serial Numbers AAF 1-Up and 7PZ 1-Up). The D11R and theCarrydozer are elevated sprocket design tractors equipped with the PowerTrain Electronic Control System, Finger Tip Control steering, ElectronicImplement Control, and Vital Information Display System (VIDS).

These machines are powered by the 3508B turbocharged and aftercooledengine rated at 634 kW (850 hp) with a 25 percent net torque rise forexcellent lugging performance. The power from the engine is transferredthrough a torque divider that provides maximum torque multiplicationduring heavy loading.

STMG 714 - 5 -3/00

D11R TRACK-TYPE TRACTORD11R CD CARRYDOZER

ELECTRO-HYDRAULIC IMPLEMENT SYSTEMS

©2000 Caterpillar Inc.

STMG 714 - 6 -3/00

2

ELECTRONIC CONTROL SYSTEM

The Implement Electronic Control System controls the hydraulic pilotvalves for the blade and ripper attachments. The Implement ElectronicControl Module (ECM) receives operator requests from the blade controllever and the ripper control lever. The ECM responds by energizing theappropriate pilot solenoid valves on the electro-hydraulic manifold. Theproportional solenoid valves control the amount of pilot oil that is sent tothe dozer or ripper control valves to shift the appropriate spools and directmain pump oil to the head or rod end of the cylinders. The ECM controlsthe blade height, blade tilt, blade pitch, ripper height, and ripper shank inor out functions.

Certain repetitive blade and ripper tasks can be performed automaticallyby the ECM. The operator selects these automatic functions through thekeypad. The automatic functions will be discussed later in thispresentation.

BLADE RAISE/LOWER SENSORBLADE TILT SENSORMANUAL SELECT SWITCHMODE SELECT SWITCHPITCH FORWARD SWITCHPITCH BACK SWITCHPITCH FORWARD TRIGGERSWITCH

RIPPER RAISE/LOWER SENSORSHANK IN/OUT SENSORRIPPER AUTO STOW SWITCH

PRESSURE COMPENSATIONOVERRIDE SOLENOID VALVE

PITCH SOLENOIDSINGLE TILT SOLENOID (D11R)PITCH REGENERATESOLENOID VALVE (CD ONLY)

RIPPER RAISE SOLENOIDRIPPER LOWER SOLENOIDSHANK IN SOLENOIDSHANK OUT SOLENOIDBLADE RAISE SOLENOIDBLADE LOWER SOLENOIDBLADE TILT LEFT SOLENOIDBLADE TILT RIGHT SOLENOIDIMP LOCKOUT SOLENOID

AUTO PITCH INDICATORBLADE FLOATSINGLE TILT (D11R ONLY)

VIDS ECMPOWER TRAIN ECMENGINE ECMCAT ET

CAT DATA LINK

OPERATINGFUNCTION

INDICATORPANEL

IMPLEMENT PILOTVALVE MANIFOLD

DUAL TILT VALVE

IMPLEMENTELECTRONIC

CONTROLMODULE

(ECM)

IMPLEMENT HARNESS CODEPLUG

TORQUE CONVERTER OUTPUTSPEED SENSOR

RIGHT LIFT CYLINDERPOSITION SENSOR (CD ONLY)

LEFT LIFT CYLINDERPOSITION SENSOR ( CD ONLY)

MAIN PUMP PRESSURESENSOR

TILT PUMP PRESSURESENSOR

BLADECONTROLHANDLE

RIPPERCONTROLHANDLE

IMPLEMENT LOCKOUT SWITCH

IMPLEMENT ELECTRONICCONTROL SYSTEM

ENGINE OVERSPEED SIGNAL(FROM ENGINE ECM)

¥ Electronic ControlSystem

¥ Componentidentification:

1. Blade controlhandle

2. Blade PITCH lever

3

The implement control handles for the D11R and the D11R CD are notmechanically connected to the dozer and ripper control valves. The bladecontrol handle and the ripper control handle are input devices to anElectronic Control Module (ECM) located below the implement controlhandle.

Moving the blade control handle (1) forward or rearward LOWERS orRAISES the blade. Moving the handle left or right allows the blade toTILT LEFT or TILT RIGHT. The thumb lever (2) allows the operator toPITCH the blade forward or rearward.

The left button (3) on the blade control handle allows the operator toactivate the Automatic Modes. After the blade is loaded or the dig cycleis complete, the first push of the left button allows the blade to PITCH toan operator preset carry position. The carry pitch position is set throughthe Vital Information Display System (VIDS) keypad. The second pushof the left button begins the SPREAD portion of the cycle. The blade willRAISE and PITCH FORWARD automatically to the operator preset pitchposition. On the Carrydozer, the lift cylinders will also raise tocompensate for the change in pitch and lift the blade at the pre-selectedrate. The Automatic Control feature will be suspended if the operatoroverrides the automatic function. The exception to this condition is AutoSpread. Auto Spread allows the operator to temporarily PITCH or RAISEwithout interrupting the Automatic Control settings.

STMG 714 - 7 -3/00

3

5

6

7

8

4

2

1

➥

3. Mode select button

4. Manual selectbutton

5. Ripper RAISE orLOWER lever

6. SHANK IN or OUTlever

7. Ripper Auto Stowswitch

8. Implement lockoutswitch

The right button (4) cancels the Automatic Mode, and the blade may becontrolled manually.

Located on the front of the blade control handle is a trigger switch (notshown). When this switch is engaged, the blade will PITCH FORWARDto dump the blade load. This switch performs the same function as thethumb lever (2) when moved to the right.

The ripper controls are located to the rear of the blade control handle.Ripper RAISE and LOWER are controlled by the thumb switch (5) at thefront of the ripper control handle. The finger switch (6) allows theoperator to control SHANK IN and SHANK OUT. Pushing the button (7)on the ripper control raises the ripper to maximum height or moves theripper tip to the full SHANK IN position if selected through the SETMACH and 4:AUTOSTOW CONFIG on the VIDS keypad.

Located to the rear of the ripper controls is a lockout switch (8) thatdisables the implement pilot pressure. If the implement lockout switch isswitched to the locked position, the VIDS display will readIMPLMTS_OFF. When the operator returns the implement lockoutswitch to the unlocked position, the mode will be set to MANUAL.

STMG 714 - 8 -3/00

STMG 714 - 9 -3/00

4

¥ Continuous flow atminimum pressurewith controls in HOLD

¥ Two section gear-typepump

¥ Pilot operated controlvalves

RIPPERCONTROL

VALVE

LOGICVALVE

DUAL TILT VALVEPITCH REGENERATE VALVE (CD)

LIFT CYLINDERPOSITION SENSOR (CD)

QUICK-DROP VALVE (D11R)

FAN MOTOR ANDMAKEUP VALVE

LIFT CYLINDERPOSITION SENSOR (CD)

QUICK-DROP VALVE (D11R)

OIL COOLER ANDBYPASS VALVE

IMPLEMENTPUMP

E/HFILTER

HYDRAULICPRESSURESENSORS

HYDRAULICTANK

ECM'S

ELECTRO-HYDRAULICPILOT VALVE

GROUP

FANPUMPS

MANUAL IMPLEMENTLOWER VALVE

FAN RETURNFILTER

IMPLEMENT HYDRAULIC SYSTEM COMPONENTSD11R TRACTOR AND D11R CD CARRYDOZER

HYDRAULIC CONTROL SYSTEM

The implement hydraulic system for the D11R and the Carrydozer is acontinuous flow design that permits minimum pressure in the systemwhen the implement control valves are not activated. The flow foroperation of the bulldozer and ripper is provided by a two section gear-type pump (tilt and lift sections). The cooling oil for the hydraulic circuitsis provided by the fan circuit. The pilot pressure oil for the implementsystem is also supplied by the fan pump.

The system components include: the implement pump, electro-hydraulicpilot valve group, logic valve, demand control fan pumps, dozer controlvalve, dual tilt control valve, pitch regenerate valve (Carrydozer only),quick-drop valves (D11R only), and a ripper control valve. The systemcomponents control the flow of hydraulic oil to the appropriate implementcylinders.

¥ Hydraulic tankcomponents:

- Oil fill tube

- Manual air vent

- Hydraulic oil filters

- Sight gauge

- Tank drain

- Fan return filter

5

The hydraulic tank is located on the right fender just outside the operator'scompartment. The oil fill tube and cap are located on the top of the tank.Inside the fill tube is a fine mesh screen which removes large particles ofdirt or foreign material from the oil as the tank is filled. A manual airvent and the breaker relief valve are located near the filters. The vacuumbreaker relief valve has a pressure setting of 3.5 kPa (.5 psi) and apressure relief setting of 210 kPa (30 psi). Two hydraulic oil filters arelocated inside the tank. Also mounted at the front of the tank is a fanreturn filter, and below the right fender is an electro-hydraulic systemfilter. The oil level sight gauge on the front of the tank permits an easycheck of the hydraulic system oil level. Always clean the sight gauge tobe sure the oil level is visible. Dirt and stains on the glass frequently givethe appearance of a full tank.

NOTE: The capacity of the D11R CD hydraulic system isapproximately 314 Liters (83 gal.).

STMG 714 - 10 -3/00

¥ Dozer control valve

6

The dozer control valve is located below the operator's station on the rightside of the machine. Inside the control valve are two spools: One spoolcontrols blade lift and lower, and one spool controls blade tilt. The bladelift spool and the blade tilt spool are operated by pilot oil.

The pilot operated dozer lift spool has four positions: RAISE, HOLD,LOWER, and FLOAT. The pilot operated blade tilt spool has threepositions: TILT RIGHT, HOLD, and TILT LEFT.

The tilt circuit receives oil from the small (tilt) section of the pump.When the circuit is not in use, the oil joins the large (lift) pump section oilflow to the lift circuit. If neither circuit is in use, the dump valve opensand sends oil flow to the tank. Both the tilt and lift circuits have loadcheck valves and relief valves. The lift circuit has makeup valves for boththe rod and head ends of the lift cylinders.

NOTE: When the engine rpm is low (below 800 rpm), thetransmission is in NEUTRAL, and the blade control handle is in theHOLD position, the implement lockout solenoid is DE-ENERGIZEDby the ECM.

STMG 714 - 11 -3/00

¥ Pilot operated dozerlift spool

¥ Pilot operated bladetilt spool

7

The electro-hydraulic system filter (1) is located below the floor plate atthe right of the main beam. This filter keeps debris from entering theelectro-hydraulic pilot manifold.

Located to the right of the filter are the main pump pressure sensor (2)and the tilt pump pressure sensor (3). Located to the left of the pumppressure sensors are corresponding pressure taps where gauges may beconnected to test the pressures. Pump pressures may also be checkedthrough the message center of the VIDS display.

Located to the rear of the pressure sensors is the hydraulic accumulator(4). During rapid engine deceleration, the fan pump discharge pressuremay decrease below the desired pilot pressure. The accumulator preventsthe pilot pressure from decreasing below the desired pressure.

The manual implement lower valve (5) is located below and to the rear ofthe pump pressure sensors (also on the right frame). This valve allows theoperator or service technician to manually lower the implements to theground if the electrical system is inoperative. When the valve is manuallyopened with the appropriate tool, the implement cylinders with thehighest pressure drain to the tank, and the corresponding implement islowered to the ground first. Then, the cylinders with the next highestpressure are drained until all implements are lowered to the ground.

STMG 714 - 12 -3/00

5 4

2

13

¥ Componentidentification:

1. Electro-hydraulicsystem filter

2. Main pumppressure sensor

3. Tilt pump pressuresensor

4. Hydraulicaccumulator

5. Manual implementlower valve

STMG 714 - 13 -3/00

8

¥ Fan pumps part ofhydraulic system

¥ Demand control fansystem equipped withtandem axial pumps

SOLENOID

FAN DRIVEMOTOR

RADIATOR

OIL COOLER

OILCOOLERBYPASSVALVE

FAN DRIVEHYDRAULIC SYSTEM

TO ELECTRO-HYDRAULICPILOT MANIFOLD

FANPUMPS

SUCTION LINE CASE DRAIN LINE

FAN PUMP CASEFLUSHING FLOW

TANK

PILOTSUPPLYFILTER

FAN RETURNFILTER

Fan Drive Hydraulic System

The demand control fan system on the D11R and the D11R CD isconsidered part of the implement hydraulic system because the fan pumpspull oil from the implement hydraulic tank and send some of the oil to theelectro-hydraulic pilot valve manifold group. Pilot oil hydraulically shiftsthe blade lift and tilt spools in the dozer control valve and also shifts thespools in the ripper control valve to control ripper lift and ripper tip.

Pilot oil from the fan pumps is also used to shift the dual tilt valve on theD11R Tractor and the D11R CD Carrydozer. The spool in the pitch re-generate valve on the D11R CD Carrydozer is shifted with pilot pressureoil from the demand control fan system.

➥

INSTRUCTOR NOTE: The following color codes will be usedthroughout this presentation to identify the various pressures in thesystem.

Red - Pump supply or main system oilRed and White Stripes - Reduced pressure oilOrange - Pilot pressure oilBlue - Blocked oilGreen - Suction, return or case drain oilPurple - Nitrogen charge pressureYellow - Moving parts or activated valve

envelopes

STMG 714 - 14 -3/00

¥ Fan pumps

9

The tractor is equipped with two hydraulic pumps for the demand controlfan system. The tandem axial pumps are located below the floor plate onthe right rear of the engine and are driven off the flywheel housing. Thefront pump is a variable displacement pump and the rear pump is a fixeddisplacement pump. The system adjusts the fan speed to match thecooling system demands based on an input signal to the engine ElectronicControl Module (ECM) from the engine coolant temperature sensor.

STMG 714 - 15 -3/00

STMG 714 - 16 -3/00

10

¥ Blade functions

Electro-Hydraulic Pilot System

The implement system for the D11R and the D11R CD is operated bypilot oil. The fan pump supplies pilot oil to a manifold located below thefloor plate on top of the main case. This manifold includes an ON/OFFsolenoid valve that allows the implement control levers to function orblocks the flow to the electro-hydraulic "main gallery." The manifold alsocontains four proportional solenoid valves that control the amount of pilotoil directed to the dozer control valve. This pilot oil is sent to the ends ofthe tilt or lift spool and control BLADE LIFT, BLADE LOWER andFLOAT, BLADE TILT LEFT, and BLADE TILT RIGHT.

FROM LOGICVALVE

ELECTRO-HYDRAULICPILOT SYSTEM

HOLD

IMPLEMENT LOCKOUTSOLENOID

VALVE

SHUTTLEVALVE

PRESSUREREDUCING

VALVES

TESTPORT

BLADERAISE

TILTRIGHT/DUMP

RIPPERLOWER

RIPPER SHANK IN

RIPPER SHANK OUTRIPPERRAISE

TILTLEFT/RACK

BLADE LOWER/FLOAT

TO RIPPER TIP SPOOL

TO RIPPER LIFT SPOOL

TO RIPPER TIP SPOOL

TOFAN

MOTOR

FANPUMPS

TO DOZER TILT SPOOL

TO DOZER LIFT SPOOL

TO DOZER LIFT SPOOL

TO DOZER TILT SPOOL

TO DOZER TILT SPOOL

➥

The ECM receives a signal from the blade control handle when theoperator requests a blade function. The ECM then sends an output signalto the appropriate solenoid. The solenoid valve opens proportionally tothe signal received from the ECM. The higher the signal, the more thesolenoid valve opens to allow more flow to the spool. When theautomatic feature is activated by the operator, the ECM also sends outputsignals to all the appropriate solenoids simultaneously, allowing theautomatic blade functions.

If the tractor is equipped with a ripper, the pilot manifold is equipped withtwo additional bolt-on blocks. These blocks contain four moreproportional solenoid valves that direct pilot oil to the ripper control valveto select RIPPER RAISE, RIPPER LOWER, SHANK IN, and SHANKOUT. When the operator requests a ripper function, the correspondingripper switch sends a signal to the ECM. The ECM then sends an outputsignal to the appropriate solenoid on the pilot manifold, which directspilot oil to the appropriate spool end.

The ripper control also contains an Auto Stow button. When this buttonis pushed by the operator, the ECM sends a signal that RAISES the ripperto the maximum height and moves the shank to the full SHANK INposition (if configured through the VIDS keypad).

NOTE: The charts in Serviceman's Handouts No. 1, 2 and 3 showwhich solenoids are activated by the ECM when the operatorrequests an implement movement.

STMG 714 - 17 -3/00

¥ Ripper functions

STMG 714 - 18 -3/00

11

¥ Lift spool in HOLD

DOZER LIFT SPOOLHOLD

FROM LIFTLIFT SECTION PUMP

LIFT RELIEFVALVE

LIFT SPOOL

FROM PRESSURECOMPENSATION

OVERRIDE SIGNALPORT

Bulldozer Lift Circuit

The lift spool has four positions: RAISE, HOLD, LOWER, and FLOAT.The lift spool is hydraulically operated by pilot oil from the electro-hydraulic pilot valve manifold. When the valve spools in both the dozercontrol valve and the ripper control valve are in the HOLD position, thepressure of the supply oil (from both the tilt and lift sections of the pump)through the dozer control valve is maintained at approximately 700 kPa(100 psi). Movement of the blade control handle to the rear sends anelectrical signal to the ECM. The ECM sends an output signal to asolenoid on the electro-hydraulic pilot valve manifold. The solenoidvalve opens and sends pilot oil to the left end of the lift spool. The spoolshifts to the right and directs oil from the large pump section to the rodend of the lift cylinders, causing the blade to RAISE. Forward movementof the blade control handle sends pressure oil to the head end of the liftcylinders, causing the blade to LOWER.

➥

¥ FLOAT operation To operate the dozer in FLOAT, the operator must "arm" the blade controlhandle by pressing the float button on the Vital Information DisplaySystem (VIDS) keypad. When the button is pressed, a light located belowthe keypad illuminates, indicating the FLOAT Mode is armed. The bladecontrol handle must be moved to the maximum forward position toactivate FLOAT, then released to the HOLD position. The blade will thenoperate in the FLOAT Mode. If no active faults are present, the messagecenter will display "FLOAT" when the FLOAT Mode is active. Movingthe control lever to the RAISE position or pressing the float Hot Key onthe keypad will deactivate the FLOAT Mode.

NOTE: Any ripper activation will temporarily suspend FLOAToperation since both circuits are supplied by the same hydraulicpump.

STMG 714 - 19 -3/00

STMG 714 - 20 -3/00

12

¥ HOLD position

SECTIONA-A

FROM TILT SECTION PUMP

FROM PILOT MANIFOLD

FROM LIFT SECTION PUMP

TO ROD ENDTILT CYLINDER

TO HEAD ENDTILT CYLINDER

LIFT RELIEFVALVE

TILT RELIEFVALVE

DOZER CONTROL VALVE

FROM PILOTMANIFOLD

TILT SPOOL

SHUTTLE VALVE

FROM PRESSURECOMPENSATION

OVERRIDE SIGNAL PORT

HOLD

FROM PILOTMANIFOLD

The dozer lift spool is a "closed-center" spool, and the blade tilt spool isan "open-center" spool. In this view, both spools are in the HOLD (orcenter) position. Oil from the lift pump section enters the valve and fillsthe chamber in the center of the valve body. Flow from the tilt section ofthe pump enters the valve body, flows around the open-center tilt spool,and joins with the oil from the lift section in the center chamber. All theoil around the closed-center lift spool is blocked. Because both spools arein the HOLD position, no oil flows to or from the lift and tilt cylinders,and the load check valves do not open.

.

➥

¥ Dump valve The spring for the dump valve plus the pressure of the oil in the tank havea combined force that provides a restriction to flow. When the pressure inthe center chamber increases above the spring force plus the tank oilpressure, the dump valve will open and permit the combined flow fromthe two sections of the pump to return to the tank. With both spools in theHOLD position, the dump valve provides a constant low system pressurewhich is available for instant implement response or for "feathering"action of the controls when activated by the operator.

The shuttle valve resolves which hydraulic function (dozer raise andlower or ripper) will provide pressure feedback to the spring chamber ofthe dump valve. The shuttle valve is spring biased to the dozer lift andlower function. The stem shifts to the right when the pressurecompensation override solenoid valve is ENERGIZED. This conditionoccurs when the ripper function is requested by the operator or during anengine overspeed condition. When the pressure compensation overridesolenoid valve is DE-ENERGIZED, the spring chamber of the dumpvalve is connected to the tank. Tank pressure is transmitted throughpassages in the lift and lower spool that travel through the ball resolvervalve and the shuttle valve before filling the spring chamber of the dumpvalve. During blade lift and lower functions, the cylinder load pressuresignal is transmitted to the ball resolver valve, through the shuttle valve,to the spring chamber of the dump valve. The cylinder load pressuresignal is from the lift cylinder rod end during LIFT and from the cylinderhead end during LOWER or FLOAT. The ball resolver valve directs thehigher of the cylinder rod or head end pressure to the shuttle valve.

When the shuttle valve spool is moved completely to the left, pressure oilfrom the center chamber cannot fill the spring chamber of the dumpvalve. For this reason, only the dump valve springs plus the tank oilpressure are limiting the pressure in the center chamber. This pressurewill remain low during the time when the lift and tilt spools are in theHOLD position, and the ripper circuits are not activated.

STMG 714 - 21 -3/00

¥ Shuttle valve

STMG 714 - 22 -3/00

13

¥ Dozer RAISE

FROM TILTSECTIONPUMP

FROM LIFTSECTION PUMP

ROD END LIFT CYLINDER

HEAD END LIFT CYLINDER

TO ROD ENDTILT CYLINDER

TO HEAD ENDTILT CYLINDER

FROM PRESSURECOMPENSATION

OVERRIDE SIGNAL PORT

FROM PILOTMANIFOLD

DOZER CONTROL VALVERAISE

This view of the dozer control valve shows spool movement and oil flowwhen the control lever is moved to the RAISE position. Movement of thedozer lift spool to the RAISE position opens the chamber at the left centerof the spool, which is connected to the rod end of the lift cylinders. Sincethe oil around the lift spool is no longer blocked, pressure oil from thecenter chamber of the valve body can open the load check valve and flowaround the lift spool to the rod end of the lift cylinders.

At the same time that pressure oil is sent to the lift cylinders, oil alsoflows to the ball resolver valve. The ball resolver valve operates similarlyto a check valve. With the lift spool in the RAISE position, the ballresolver valve permits pressure oil to flow to the shuttle valve, but blocksflow to the head end and tank at the right end of the ball resolver valve.

➥

¥ Dump valve convertedto pilot operated reliefvalve

During blade RAISE, the lift cylinder rod end pressure is transmitted tothe spring chamber of the dump valve through the ball resolver and theshuttle valve. The dump valve uses the rod end cylinder pressurecombined with the spring to move the dump valve to the right until thesupply pressure is 700 kPa (100 psi) above the cylinder pressure. If thepressure in the dump valve spring chamber reaches 24135 kPa (3500 psi)for the Carrydozer or 22750 kPa (3300 psi) for the D11R Tractor due tocylinder load, the relief valve will open and allow the spring chamber oilto drain to the tank. When oil is allowed to drain from the dump valvespring chamber, the dump valve moves to the left and allows pump flowto pass around the dump valve to the tank. This operation prevents thesystem pressure from exceeding 24135 kPa (3500 psi) for the Carrydozeror 22750 kPa (3300 psi) for the D11R Tractor during blade RAISE orLOWER.

An additional condition can exist during dozer operation which is referredto as "feathering the blade." If the operator moves the control handle asmall distance to gradually raise the blade, flow to the cylinders goesthrough the throttling slots in the lift spool. Flow through the throttlingslots can create the same effect as an orifice by restricting the flow of oilto the lift cylinders. This restriction to flow causes a pressure differencebetween the oil in the center chamber of the valve body (system pressure)and the oil transmitted to the spring chamber of the dump valve (cylinderpressure). If the pressure difference is greater than the spring force, thedump valve will open and permit some of the pump flow to return to thetank at the same time that oil flows to the lift cylinders.

The load check valve is used to prevent reverse oil flow from thecylinders which can cause "cylinder drift."

When the lift spool is in the FLOAT position, the load check valve isopen. The supply oil in the center chamber goes through the open loadcheck valve to the head end of the lift cylinders. The center chamber isalso open to the tank. The weight of the blade is the force that moves thedozer down. The oil from the rod end of the lift cylinders is also open tothe tank when the lift spool is in the FLOAT position. When an outsideforce moves the blade up, the pressure of the oil in the rod end of the liftcylinders decreases as the rods retract. The pressure of the oil in the rodend circuit is less than the pressure in the head end circuit. The higherpressure in the head end circuit opens a makeup valve to fill the rod endcircuit as needed.

STMG 714 - 23 -3/00

¥ Blade "feathering"

¥ Load check valveprevents drift

¥ FLOAT position

STMG 714 - 24 -3/00

14

¥ Dump valve has fourfunctions:

1. Release pump flowwith levers in HOLD

2. Pressurecompensation valvefor pump

DOZER LIFT SPOOLHOLD

FROM LIFTSECTION PUMP

LIFT RELIEFVALVE

LIFT SPOOL

FROM PRESSURECOMPENSATION

OVERRIDE SIGNAL PORT

DUMP VALVE

The dump valve in the dozer control valve has four different functions inthe dozer lift and ripper circuits.

When the blade lift and ripper control spools are in the HOLD position,the pressure in the spring chamber of the dump valve is the same as tankpressure plus 700 kPa (100 psi), which is the value of the spring. Duringblade RAISE or LOWER, the pressure in the spring chamber of the dumpvalve is the same as the pressure in either the head end or rod end of thelift cylinders. This pressure is felt through the ball resolver valve and theshuttle valve. With the cylinder pressure plus the spring force behind thedump valve, the supply pressure will be raised to a level of 700 kPa (100 psi) above the cylinder pressure. Flow control and fine modulationare possible because of the constant 700 kPa (100 psi) pressure behind thedump valve.

➥

3. Flow control

4. Relief valve formain systemoperation

When the ripper control spools are activated, pilot oil (from the pressurecompensation override solenoid valve controlled by the implement ECM)is sent to the left end of the shuttle valve and moves the shuttle valve tothe right. When the shuttle valve is moved, supply oil fills the springchamber behind the dump valve. The relief valve and the dump valvenow function as the pressure limiter for the ripper circuit. Because oilfrom the tilt pump section goes to both a passage in the dozer controlvalve and to the ripper control valve, the pressure of the oil is always thesame in both places.

When the lift spool is in the RAISE or LOWER position, cylinderpressure is transmitted to the spring chamber of the dump valve throughthe ball resolver valve and the shuttle valve. A pressure relief valve islocated in the dump valve spring chamber. This valve will lift off its seatand allow the spring chamber oil to drain when the pressure in the springchamber reaches 24135 kPa (3500 psi) for the Carrydozer and 22750 kPa(3300 psi) for the D11R Tractor. When the relief valve opens, animbalance exists between the pressure in the center chamber and acombination of the dump valve spring and the pressure in the springchamber. A balance is achieved when the dump valve shifts to the leftallowing oil in the center chamber to drain until the pressure in the centerchamber is equal to the dump valve spring plus the spring chamberpressure. This method of controlling maximum system pressure is calleda "pilot operated relief valve."

STMG 714 - 25 -3/00

STMG 714 - 26 -3/00

15

¥ Quick-drop valve inRAISE position

D11R QUICK-DROP VALVERAISE

ROD END OIL

HEAD END OIL

Quick-drop Valves (D11R)

All flow to and from the blade lift cylinders must go through the quick-drop valves that are installed on top of each cylinder. The primaryfunction of the quick-drop valve is to allow rapid blade lower withoutvoiding the head end of the lift cylinders. Minimizing the amount ofcylinder voiding reduces the time delay that can occur when a rapid bladelower is followed by an operator request for blade down pressure. Thequick-drop valve is activated when a sufficient pressure difference occursbetween the cylinder rod end oil and the oil in the spring cavity. Thispressure difference is caused by rod end oil flow through an orifice in thequick-drop valve. The quick-drop valve is de-activated by high pressurein the head end felt through a slot in the spool. The quick-drop valveshelp control four functions of the bulldozer: RAISE, LOWER at slowspeeds, rapid LOWER, and LOWER with down pressure.

➥

When the blade control handle is moved to the RAISE position, supply oilenters the quick-drop valve through an inlet passage and an orifice, flowsthrough a sleeve, and is directed to the rod end of the lift cylinder. Asmall amount of oil passes through another orifice and fills the springchamber behind the plunger. The pressure of this oil adds to the force ofthe spring, which pushes the valve against the sleeve. This conditioncauses all the oil entering the quick-drop valve to be directed to the rodend of the lift cylinders and all the oil from the head end of the liftcylinders to return to the tank.

STMG 714 - 27 -3/00

STMG 714 - 28 -3/00

16

¥ Quick-drop valve inLOWER

D11R QUICK-DROP VALVELOWER

ROD END OIL

HEAD END OIL

When the blade control handle is at less than approximately 75% of fulllever travel, the lowering of the blade is controlled or modulated. Theflow of oil that can pass through the control valve lift spool at any givenposition is a function of the pressure difference across the spool and thetemperature of the oil. As stated earlier, the quick-drop valve is activatedby high lift cylinder rod end oil flow in combination with low lift cylinderhead end pressure. For this reason, the actual control handle positionwhen the quick-drop valve is actuated can vary based on oil temperatureand the blade weight, which determine the rod end oil pressure.

➥

When the blade control handle is moved to the LOWER position, supplyoil enters the quick-drop valve through a port and flows to the head end ofthe lift cylinders. The oil being pushed from the rod end of the cylindersreturns through the control valve to the tank. Because of the weight of theblade and the resistance to flow, the pressure of the rod end oil may behigher than the head end oil. The flow of oil through the orifice is nothigh enough to create a large pressure difference between the oil in theport and the oil behind the plunger. The spring holds the valve against thesleeve and all the oil leaving the rod end of the lift cylinder returnsthrough the control valve to the hydraulic tank.

STMG 714 - 29 -3/00

STMG 714 - 30 -3/00

17

¥ Quick-drop LOWER

D11R QUICK-DROP VALVEQUICK-DROP

ROD END OIL

HEAD END OIL

When the blade control handle exceeds approximately 75% of lever traveland the cylinder head end pressure is low, the quick-drop valve isactivated and the blade drops very rapidly.

The oil flow for a quick-drop is the same as slow lower except that someof the oil leaving the rod end of the lift cylinder is directed into the headend of the cylinder. When the flow of oil through the orifice createsenough pressure differential between the port and the plunger springchamber, the valve and plunger shift to the left and permit oil leaving therod end to be added to the supply oil filling the head end of the liftcylinders. As stated earlier, during a rapid blade drop, the rod endpressure will be higher than the head end pressure due to the blade weight.The resulting pressure differential and valve movement allow the rod endoil to flow to the head end of the cylinder and minimize cylinder voiding.

STMG 714 - 31 -3/00

18

¥ LOWER with downpressure

D11R QUICK-DROP VALVELOWER WITH DOWN PRESSURE

ROD END OIL

HEAD END OIL

When down pressure must be applied to the blade, the operator moves theblade control handle to the LOWER position. Pressure oil from the dozercontrol valve is sent to the head end of the lift cylinders. At the sametime, oil fills the chamber at the left end of valve spool. As the head endpressure and resistance to downward movement increase, pressure in thechamber at the left end of the valve spool moves the plunger to the leftagainst the force of the spring and moves the valve spool completely tothe right. All the pressure oil from the dozer control valve is then sent tothe head end of the lift cylinders. All the rod end oil is returned throughthe dozer control valve to the tank.

STMG 714 - 32 -3/00

19

A A

SECTION A-A

FROM PUMPTILT SECTION

FROM PUMPLIFT SECTION

FROM PILOTMANIFOLD

DOZER TILT SPOOLHOLD

TILT RIGHT TILT LEFT

LOAD CHECK VALVE

Bulldozer Tilt Circuit

The tilt spool has three positions: TILT RIGHT, HOLD, and TILT LEFT.The tilt spool is hydraulically operated by pilot pressure from a pilot valvegroup which is controlled by the ECM. In the HOLD position, the oilfrom the tilt pump section goes around the tilt spool and joins the oil fromthe lift pump section. The oil then opens the dump valve and returns tothe tank.

¥ Tilt spool in HOLD

STMG 714 - 33 -3/00

20

¥ Pilot oil moves tiltspool to right

¥ Load check valveopens

¥ Oil to tilt cylinderretracts rod

A A

SECTION A-A

DOZER TILT SPOOLTILT RIGHT

TILT RIGHT TILT LEFTFROM PUMP

TILT SECTION

FROM PUMPLIFT SECTION

FROM ELECTRO-HYDRAULICPILOT VALVE MANIFOLD

LOAD CHECK VALVE

Movement of the blade control handle to the right sends an electricalsignal to the ECM. The ECM then sends an output signal to aproportional solenoid on the electro-hydraulic pilot valve manifold. Asthe solenoid valve opens, pilot oil flows to the left end of the tilt spool.The pilot oil pressure moves the spool to the TILT RIGHT position.

In the TILT RIGHT position, the oil from the tilt section of the pumpcannot combine with the oil from the lift section, and the pressure of theoil increases. The increased pressure opens the load check valve. Beforethe start of flow to the left tilt cylinder, oil passes through a small hole inthe tilt relief valve and fills the large spring chamber between the reliefspool and the poppet. This condition raises the pressure setting of the tiltrelief valve. As the tilt spool moves farther, the pump flow is sent to theleft tilt cylinder, and the supply pressure increases due to the load.

➥

¥ Tilt circuit relief valve

The D11R CD is equipped only with dual tilt. In the TILT RIGHTposition, pump oil is sent to the head end of the left tilt cylinder, whichpushes oil to the rod end of the right tilt cylinder. Handle movement tothe left sends pilot pressure oil to the right end of the spool. The spoolmoves to the left, sending tilt pump oil to the right tilt cylinder, and theblade tilts left. When the blade control handle is released from either theTILT RIGHT or TILT LEFT position, springs return the tilt spool to theHOLD position.

When the blade control handle is released, the pilot oil at the left end ofthe tilt spool is drained. The spring at the right end of the tilt spool movesthe spool to the HOLD position. In the HOLD position, the oil in thehead and rod ends of the tilt cylinders is blocked. The tilt angle of theblade will not change until the blade control handle is moved.

To summarize, with the tilt spool in the TILT RIGHT position, flow fromthe tilt section of the pump does not combine with flow from the liftsection. Pilot oil at the left end of the tilt spool moves the spool to theright. Flow from the tilt section of the pump goes around the tilt spooland is sent to the head end of the left tilt cylinder.

Because the tilt section flow cannot combine with the oil in the centerchamber, the dump valve for the dozer lift circuit does not control the tiltcircuit pressure. Instead, the tilt relief valve (at the top of the valve body)is used to limit the pressure in the tilt circuit. When the tilt cylinderpressure increases to 24825 kPa (3600 psi) for the Carrydozer or 24300 kPa (3500 psi) for the D11R, the pilot valve for tilt relief will openand drain the spring chamber behind the valve spool. This conditionpermits the valve spool to open and limit the pressure in the tilt circuit.

STMG 714 - 34 -3/00

STMG 714 - 35 -3/00

21

¥ Dual tilt valve hasthree modes:

- Dual tilt

- Single tilt

¥ Solenoid valvecontains twopositioning coils

¥ Trigger switchactivates S1 coil

¥ Toggle switchactivates S2 coil

S1S2

D11R DUAL TILT VALVE

TILTCYLINDERS

FROM ELECTRO-HYDRAULIC MANIFOLD

FROM BLADETILT VALVE

HOLD

TO HEAD END

TO ROD END

Dual Tilt Valve (D11R)

The dual tilt valve (standard on the D11R) provides the blade tilt circuitwith three different modes of operation: DUAL TILT, SINGLE TILT, andBLADE PITCH. The control valve is located between the radiator grilldoors and the radiator on the left side of the machine. The valve isactivated by pilot oil pressure from a line connected to a T-fitting at theaccumulator. The dual tilt valve contains a spring centered, hydraulicallyactuated spool valve and an electrically energized solenoid valve.

The solenoid valve contains two coils and has three different positions.When neither solenoid coil is energized, the system operates in the DUALTILT Mode. When the SNGL TILT key is pressed on the VIDS keypad,the S2 coil in the solenoid valve is energized, and the system operates inthe SINGLE TILT Mode. When the trigger switch on the blade controlhandle is depressed, the system energizes the S1 coil in the solenoid andactivates the BLADE PITCH Mode.

➥

¥ Tilt cylinders containbypass valves

The S1 solenoid is also energized if the operator pitches (or racks) theblade with the thumb switch located at the top rear of the blade controlhandle. The appropriate solenoids are energized if the automaticfunctions of the dozing cycles are selected by the operator through theVIDS keypad.

Both the left and right tilt cylinder pistons contain bypass valves. Thesevalves allow the completion of the tilt operation. When one of thecylinders reaches the end of its travel, the oil goes through the bypassvalve to continue filling the other cylinder. The bypass valve opens whenthe cylinder reaches the end of the stroke and allows oil to flow from oneend of the cylinder to the other cylinder.

NOTE: During a TILT function, the single tilt solenoid (S2) isENERGIZED only when the SNGL TILT Hot Key is activated.

STMG 714 - 36 -3/00

STMG 714 - 37 -3/00

22

¥ Dual tilt operation

¥ DUAL TILT RIGHT

¥ Cylinders move inopposite directions

FROM TILTCONTROL VALVE

TO TILTCONTROL VALVE FROM ELECTRO-

HYDRAULIC MANIFOLD

FROM TRIGGER SWITCH

FROM TOGGLE SWITCH

LEFT TILTCYLINDER

RIGHT TILTCYLINDER

TO HEAD END

TO ROD END

D11R DUAL TILT CIRCUITDUAL TILT RIGHT

The default position of the dual tilt valve is DUAL TILT. In the DUALTILT mode, pilot oil flow is blocked at the solenoid valve and the dual tiltdirectional spool remains centered by the spring force.

When the operator moves the blade control handle to the TILT RIGHTposition, pump oil from the dozer control valve tilt circuit is sent to thehead end of the left tilt cylinder. This condition causes oil from the rodend of the left tilt cylinder to be forced through the dual tilt control valve.The oil travels around the spool and is directed to the rod end of the righttilt cylinder. As the right tilt cylinder retracts, the oil in the head end ofthe cylinder is directed back through the dual tilt control valve and thedozer tilt control valve to the tank. Movement of the tilt cylinders inopposite directions causes the blade to tilt.

➥

¥ Bypass valveprovides fullretraction formaximum blade tilt

This action of the dual tilt cylinders causes the blade to tilt to the right.When the control lever is released, the oil is blocked at the control valve,and the blade remains tilted to the right until the control lever is movedagain.

The bypass valve in the left tilt cylinder piston allows oil to continueflowing to the right cylinder after the rod is fully extended from the leftcylinder. The bypass valve allows oil to continue to flow to the right tiltcylinder rod end and provides full retraction for maximum blade tilt.

STMG 714 - 38 -3/00

STMG 714 - 39 -3/00

23

¥ Toggle switchenergizes S2 coil

¥ SINGLE TILT RIGHT

FROM TILTCONTROL VALVE

TO TILTCONTROL VALVE

FROM ELECTRO-HYDRAULIC MANIFOLD

FROM TRIGGER SWITCH

FROM KEYPAD

LEFT TILTCYLINDER

RIGHT TILTCYLINDER

TO HEAD END

TO ROD END

D11R DUAL TILT CIRCUITSINGLE TILT RIGHT

To change from the DUAL TILT to the SINGLE TILT Mode, the SNGLTILT key on the VIDS keypad is pressed. The SNGL TILT function isselected and the S2 coil in the solenoid valve is energized. The valveallows pilot oil from the solenoid valve to flow to the upper end of thedirectional spool and opens the lower end of the spool to drain. Thedirectional spool moves down against the spring force to the SINGLETILT position. In this condition, only the left tilt cylinder will extend orretract to change the position of the blade.

When the operator moves the blade control handle to the SINGLE TILTRIGHT position, supply oil is sent to the head end of the left tilt cylinder.The rod extends forcing oil from the rod end to the tank. In the SINGLETILT mode, the directional spool blocks oil to and from the right tiltcylinder to keep it stationary. The right tilt cylinder then functions as abrace.

When the control handle is released, the oil is blocked at the control valve,and the blade remains tilted to the right until the control handle is movedagain.

STMG 714 - 40 -3/00

24

¥ Trigger switchenergizes S1 coil

¥ BLADE PITCHFORWARD

FROM TILTCONTROL VALVE

TO TILTCONTROL VALVE

LEFT TILTCYLINDER

RIGHT TILTCYLINDER

TO HEAD END

TO ROD END

FROM ELECTRO-HYDRAULIC MANIFOLD

FROM KEYPAD

D11R DUAL TILT CIRCUITBLADE PITCH FORWARD

FROM TRIGGER SWITCH

To change the blade pitch, the trigger switch on the blade control handle isdepressed, the thumb switch is pushed to the right, or the left mode buttonis pressed for the Auto Blade Assist (ABA) feature. To PITCH the blade,the S1 coil in the solenoid valve is energized. The solenoid valve directspilot oil to the lower end of the directional spool and opens the upper endof the spool to drain. The valve spool then shifts up against the springforce to the BLADE PITCH Mode.

For BLADE PITCH FORWARD, flow from the dozer tilt circuit is sent tothe head end of the left tilt cylinder. As the cylinder extends, oil from therod end is pushed through the dual tilt valve to the head end of the righttilt cylinder. The oil in the rod end of the right tilt cylinder is pushed backthrough the dual tilt valve to the hydraulic tank. As both tilt cylindersextend, the blade pitches forward. The cylinder extension rate is not thesame between the left and right tilt cylinders. This difference is caused bythe unequal volume of oil entering the two cylinder head ends. Thevolume of oil being pushed from the left cylinder rod end is used toextend the right tilt cylinder. ➥

¥ BLADE PITCH haspriority

The left rod end displaces a volume equivalent to the volume entering theleft head end of the cylinder minus the cylinder rod volume.

Since the right tilt cylinder head end receives oil from the rod end of theleft cylinder, the right cylinder will extend at a slower rate than the leftcylinder.

When the blade control handle is released, the oil is blocked at the controlvalve and the blade remains pitched forward until the control lever ismoved again.

One additional characteristic of the BLADE PITCH mode is that it haspriority over the SNGL TILT mode.

STMG 714 - 41 -3/00

STMG 714 - 42 -3/00

25

¥ Dual tilt valve has twomodes:

- TILT LEFT or RIGHT

- DUMP or RACKBACK

¥ Solenoid valve hastwo positions

¥ Trigger switchactivates S1 coil

¥ Thumb switchactivates S1 coil

S1

TILTCYLINDERS

FROMELECTRO-HYDRAULIC

PILOT MANIFOLD

FROM BLADETILT VALVE

TO HEAD END

TO ROD END

PITCH REGENERATEVALVE

FROM FANPUMP

DUAL TILT SOLENOID VALVEHOLD

Dual Tilt Valve (Carrydozer)

The dual tilt solenoid valve provides the blade tilt circuit with twodifferent modes of operation: DUAL TILT (LEFT or RIGHT) and PITCH(FORWARD or BACK). The control valve is located between theradiator grill doors and the radiator on the left side of the machine. Thevalve is activated by pilot oil pressure supplied by the fan circuit througha line connected to a T-fitting at the accumulator. The dual tilt valvecontains a spring centered, hydraulically actuated spool valve and anelectrically energized solenoid valve.

Although both solenoid coils are installed, only one coil (S1) is used inthe carrydozer application. When the S1 coil is DE-ENERGIZED, thesystem operates in the DUAL TILT Mode. When the trigger switch onthe blade control handle is depressed, or the thumb switch is moved to theright, the system energizes the S1 coil in the solenoid and activates theBLADE PITCH Mode. When the thumb switch on the blade controlhandle is moved to the left, the S1 coil in the solenoid valve is

➥

¥ Tilt cylinders containbypass valves

The solenoid on the pitch regenerate valve is also ENERGIZED when theBLADE PITCH Mode is selected. In the PITCH FORWARD Mode, rodend oil from the right tilt cylinder combines with head end oil at the pitchregenerate valve to allow the tilt cylinders to dump faster. The cylindersdump evenly because the left rod end area is equal to the right head endarea.

Both the left and right tilt cylinder pistons contain bypass valves. Thesevalves allow the completion of the tilt operation. When one of thecylinders reaches the end of its travel, the oil flows through the bypassvalve to continue filling the other cylinder.

STMG 714 - 43 -3/00

STMG 714 - 44 -3/00

26

¥ Dual tilt operation

¥ TILT RIGHT

¥ Cylinders move inopposite directions

PITCHREGENERATEVALVE

FROM ELECTRO-HYDRAULIC MANIFOLD

FROM TRIGGER SWITCH

LEFT TILTCYLINDER

RIGHT TILTCYLINDER

TO HEAD END

TO ROD END

TO/FROM DOZERTILT VALVE

DUAL TILT CIRCUITTILT RIGHT

The DUAL TILT feature is standard equipment on the Carrydozer. In theDUAL TILT Mode, oil flow is blocked at the solenoid valve and the dualtilt directional spool remains centered by the spring force. Movement ofthe tilt cylinders in opposite directions causes the blade to tilt.

When the operator moves the blade control handle to the TILT RIGHTposition, supply oil from the dozer control valve tilt circuit is sent to thehead end of the left tilt cylinder. This condition causes oil from the rodend of the left tilt cylinder to be forced through the dual tilt control valve.The oil travels around the spool and is directed to the rod end of the righttilt cylinder. As the right tilt cylinder retracts, the oil in the head end ofthe cylinder is directed back through the dual tilt control valve and thedozer tilt control valve to the tank.

This action of the tilt cylinders causes the blade to tilt to the right. Whenthe control handle is released, the oil is blocked at the control valve, andthe blade remains tilted to the right until the control handle is movedagain.

➥

¥ Bypass valveprovides fullretraction formaximum blade tilt

The bypass valve in the left tilt cylinder piston allows oil to continueflowing to the right cylinder after the rod is fully extended from the leftcylinder. The bypass valve allows oil to continue to flow to the right tiltcylinder rod end and provides full retraction for maximum blade tilt.

Maximum blade tilting is limited on the Carrydozer by the lift cylinderposition sensors. Limiting the tilt function prevents the blade push armsfrom interfering with the tracks. The long stroke of the tilt cylinders onthe Carrydozer makes limiting the blade tilt function necessary.

STMG 714 - 45 -3/00

STMG 714 - 46 -3/00

27

¥ Trigger switchenergizes S1 coil

¥ Blade PITCHFORWARD

¥ Pitch regenerate valve

LEFT TILTCYLINDER

RIGHT TILTCYLINDER

TO HEAD END

TO ROD END

FROM ELECTRO-HYDRAULICMANIFOLD

FROM TRIGGER SWITCH

PITCHREGENERATEVALVE

TO/FROM DOZERTILT VALVE

DUAL TILT CIRCUITPITCH FORWARD

To pitch the blade FORWARD, the trigger switch on the blade controlhandle is depressed, or the thumb lever is pushed to the right, and the S1coil in the solenoid valve is ENERGIZED. The solenoid valve directspilot oil to the lower end of the directional spool and opens the upper endof the spool to drain. The valve spool then shifts up against the springforce to PITCH FORWARD.

For PITCH FORWARD, flow from the dozer tilt circuit is sent to the headend of the left tilt cylinder. As the cylinder extends, oil from the rod endis pushed through the dual tilt valve to the head end of the right tiltcylinder. The oil in the rod end of the right tilt cylinder is pushed backthrough the dual tilt valve. When the trigger switch is depressed forPITCH FORWARD, the pitch regenerate valve located below the dual tiltvalve is also activated. The pitch regenerate valve provides regenerativeflow to prevent cylinder voiding and allows the right cylinder rod end oilto be directed to the head end of the cylinders. This condition allows bothcylinders to extend at the same rate. As both tilt cylinders extend, theblade pitches forward.

➥

¥ Thumb lever leftallows PITCH BACK

As stated earlier, both cylinders extend at the same rate because the rodend area of the left tilt cylinder is equal to the head end area of the righttilt cylinder.

When the trigger switch is released, the oil is blocked at the control valveand the blade remains pitched forward until the thumb lever is moved tothe left or PITCH BACK Mode.

STMG 714 - 47 -3/00

¥ Ripper control valve

28

Ripper and Pilot Circuits

The ripper control valve has two spools (lift and tip), two makeup valves(one for the head end of the ripper lift cylinders and one for the rod end ofthe ripper tip cylinders), and a load check valve. The ripper lift spool isoperated with pilot oil pressure and has three positions: RAISE, HOLD,and LOWER. The ripper tip spool is operated by pilot oil pressure andalso has three positions: SHANK IN, HOLD, and SHANK OUT.

Movement of the thumb lever on the ripper control handle causes theripper to RAISE or LOWER. Moving the finger lever on the rippercontrol lever selects SHANK IN or SHANK OUT. The button on theripper control handle activates the Auto Stow feature.

STMG 714 - 48 -3/00

STMG 714 - 49 -3/00

29

¥ RIPPER RAISE When the operator requests the RIPPER RAISE function, an electricalsignal from the ripper thumb switch is sent to the ECM. The ECM sendsan output signal to the ripper raise solenoid on the pilot manifold. Thesolenoid valve opens, sending pilot oil to the upper end of the ripper liftspool.

At a synchronized time, the ECM sends a signal to energize the pressurecompensated override solenoid valve. The pressure compensated overridesolenoid valve directs pilot oil to the shuttle valve in the dozer controlvalve. The shuttle valve shifts to the right and allows oil from the centerchamber to fill the spring chamber of the dump valve, which nowfunctions as the relief valve for the ripper circuit. When the shuttle valveis shifted, the oil from the implement pump is directed to the load checkvalve in the ripper control valve. The increased pressure opens the loadcheck valve and allows oil to flow to the rod end of the ripper liftcylinders to RAISE the ripper.

TO DOZERCONTROL VALVE

RIPPER AND PILOT SYSTEMSRAISE

LOAD CHECKVALVE

IMPLEMENTPUMP

RIPPER LIFTSPOOL

RIPPER IN/OUTSPOOL

IMPLEMENTLOCKOUTSOLENOID

VALVE

BLADERAISE

TILTRIGHT/DUMP

RIPPERLOWERRIPPER IN

RIPPEROUT

RIPPERRAISE

TILTLEFT/RACK

BLADELOWER/FLOAT

MAKEUPVALVE

FAN PUMPS

LIFTCYLINDERS

TO PRESSURECOMPENSATION

OVERRIDE SOLENOIDVALVE

➥

The ripper functions are electronically prioritized so ripper LIFT haspriority over ripper SHANK IN/OUT if they are requestedsimultaneously. All ripper functions have priority over blade FLOAT.

STMG 714 - 50 -3/00

STMG 714 - 51 -3/00

30

¥ RIPPER LOWER When the operator requests the RIPPER LOWER function, an electricalsignal from the ripper thumb switch is sent to the ECM. The ECM sendsan output signal to the ripper lower solenoid on the pilot manifold. Thesolenoid valve opens, sending pilot oil to the lower end of the ripper liftspool.

At a synchronized time, the ECM sends a signal to energize the pressurecompensated override solenoid valve. The pressure compensated overridesolenoid valve directs pilot oil to the shuttle valve in the dozer controlvalve. The shuttle valve shifts to the right and allows oil to fill the springchamber of the dump valve, which now functions as the relief valve forthe ripper circuit. When the shuttle valve is shifted, the oil from theimplement pump is directed to the load check valve in the ripper controlvalve. The increased pressure opens the load check valve and allows oilto flow to the head end of the ripper lift cylinders to LOWER the ripper.If, due to the ripper weight, the ripper drops faster than the pump canprovide flow to the cylinder, the makeup valve opens and allows drain oilto fill the head end of the cylinders to prevent cylinder voiding.

TO DOZERCONTROL VALVE

RIPPER AND PILOT SYSTEMSLOWER

LOAD CHECKVALVE

IMPLEMENTPUMP

RIPPER LIFTSPOOL

RIPPER IN/OUTSPOOL

IMPLEMENTLOCKOUTSOLENOID

VALVE

BLADERAISE

TILTRIGHT/DUMP

RIPPERLOWERRIPPER IN

RIPPEROUT

RIPPERRAISE

TILTLEFT/RACK

BLADELOWER/FLOAT

MAKEUPVALVE

FAN PUMPS

LIFTCYLINDERS

TO PRESSURE COMPENSATIONOVERRIDE SOLENOID VALVE

STMG 714 - 52 -3/00

31

¥ SHANK IN When the operator requests the ripper SHANK IN function, an electricalsignal from the ripper finger lever is sent to the ECM. The ECM sends anoutput signal to the ripper in solenoid on the pilot manifold. The solenoidvalve opens, sending pilot oil to the lower end of the ripper tip spool.

At a synchronized time, the ECM sends a signal to energize the pressurecompensated override solenoid valve. The pressure compensated overridesolenoid valve directs pilot oil to the shuttle valve in the dozer controlvalve. The shuttle valve shifts to the right and allows oil to fill the springchamber of the dump valve, which now functions as the relief valve forthe ripper circuit. When the shuttle valve is shifted, the oil from theimplement pump is directed to the load check valve in the ripper controlvalve. The increased pressure opens the load check valve and allows oilto flow to the head end of the ripper tip cylinders to allow the ripper tip tomove toward the machine.

TO DOZERCONTROL VALVE

RIPPER AND PILOT SYSTEMSSHANK IN

LOAD CHECKVALVE

IMPLEMENTPUMP

RIPPER LIFTSPOOL

RIPPER IN/OUTSPOOL

IMPLEMENTLOCKOUTSOLENOID

VALVE

BLADERAISE

TILTRIGHT/DUMP

RIPPERLOWERRIPPER OUT

RIPPERIN

RIPPERRAISE

TILTLEFT/RACK

BLADELOWER/FLOAT

MAKEUPVALVE

FAN PUMPS

LIFTCYLINDERS

TO PRESURECOMPENSATION

SOLENOIDVALVE

STMG 714 - 53 -3/00

32

¥ Shank out When the operator requests the ripper SHANK OUT function, anelectrical signal from the ripper finger lever is sent to the ECM. TheECM sends an output signal to the ripper tip solenoid on the pilotmanifold. The solenoid valve opens, sending pilot oil to the upper end ofthe ripper tip spool.

At a synchronized time, the ECM sends a signal to energize the pressurecompensated override solenoid valve. The pressure compensated overridesolenoid valve directs pilot oil to the shuttle valve in the dozer controlvalve. The shuttle valve shifts to the right and allows oil to fill the springchamber of the dump valve, which now functions as the relief valve forthe ripper circuit. When the shuttle valve is shifted, the oil from theimplement pump is directed to the load check valve in the ripper controlvalve. The increased pressure opens the load check valve and allows oilto flow to the head end of the ripper lift cylinders to LOWER the ripper.If, due to machine movement, the ripper tip extends faster than the pumpcan provide flow to the cylinders, the makeup valve opens and allowsdrain oil to fill the rod end of the cylinders to prevent cylinder voiding.

TO DOZERCONTROL VALVE

RIPPER AND PILOT SYSTEMSSHANK OUT

LOAD CHECKVALVE

IMPLEMENTPUMP

RIPPER LIFTSPOOL

RIPPER IN/OUTSPOOL

IMPLEMENTLOCKOUTSOLENOID

VALVE

BLADERAISE

TILTRIGHT/DUMP

RIPPERLOWERRIPPER OUT

RIPPERIN

RIPPERRAISE

TILTLEFT/RACK

BLADELOWER/FLOAT

MAKEUPVALVE

FAN PUMPS

LIFTCYLINDERS

TO PRESURECOMPENSATION

OVERRIDESOLENOID

VALVE

STMG 714 - 54 -3/00

33

VITAL INFORMATION DISPLAY SYSTEM (VIDS)

The Vital Information Display System (VIDS) continuously monitors themachine systems. VIDS contains both software and hardwarecomponents. The hardware components consist of the VIDS ECM, akeypad, quad gauge, speedometer/tachometer, message center, andvarious switches, sensors, lamps and alarms.

The VIDS components communicate with each other, with otherelectronic controls on the machine, and with systems off the machinethrough Data Links. VIDS uses the following Data Links:

CAT Data Link: This two wire Data Link allows communication betweenthe VIDS ECM and any other machine control system.

Serial Peripheral Interface (SPI) Data Link: This four wire Data Linkallows communication between the VIDS ECM and all displaycomponents.

BATTERY

KEY START SWITCH

FRONT ACTION LAMP

8V SENSOR SUPPLY

MESSAGE CENTER

ACTION ALARM

CAT DATA LINK

12V INSTRUMENT SUPPLY

POWER TRAIN FILTERBYPASS SWITCH

KEYPAD INPUT

POWER TRAIN OILTEMERATURE SENSOR

HYDRAULIC OILTEMERATURE SENSOR

ELECTO-HYDRAULICFILTER BYPASS SWITCH

FAN RETURN FILTERBYPASS SWITCH

VIDS(ECM)

FUEL LEVEL SENSOR

VITAL INFORMATIONDISPLAY SYSTEM

SPEEDOMETER/TACOMETER

QUAD GAUGE

SPI

SPI

REAR ACTION LAMP

SPI

¥ Vital InformationDisplay System

➥

INSTRUCTOR NOTE: At this time, it is recommended that eachstudent be provided with a copy of the booklet "VIDS MessageCenter and Keypad Operator Instruction" (Form TEJB6017). Theuse of this booklet with the visuals that follow will enhance the abilityof the students to perform the various keypad functions.

STMG 714 - 55 -3/00

STMG 714 - 56 -3/00

34

¥ Key functions

Keypad Operation

The keypad, located to the right of the operatorÕs compartment above theblade control handle, allows the operator or service technician tocommunicate with the VIDS monitor module. The operator or servicetechnician can select the information shown on the display and initiateservice procedures. The keypad also allows the operator to enter anidentification number to recall stored parameters and to acknowledgeevents.

The key pressed indicator, located above the OK key, flashes once eachtime a key is pressed. This flash notifies the operator or the servicetechnician that the keystroke was accepted.

The keypad will not accept an entry when an active event is present andflashing on the message center. To proceed, the operator or servicetechnician must acknowledge the event by pressing the OK key.

OK

MENU

CANCEL

1 2 3

GAUGE

HELP

4 5 6

7 9

MORE

AUT

FLOAT

SET PITCHSETUP

X

VITAL INFORMATION DISPLAY SYSTEM (VIDS)OPERATOR KEYPAD

SET MACH

SNGL TILT

? i+

ABA

➥

When a series of related keystrokes (operator ID or menu operations) isentered, consecutive keystrokes must be less than five seconds apart.Periods longer than five seconds will cancel the previous keystroke.

The left side of the keypad allows the operator or service technician tocommunicate with the VIDS monitor, while the right side of the keypadallows the operator to "setup," "arm" or "disarm" the features of themachine.

The functions of the left keys are:

Key Pressed Indicator: flashes once when any key is pressed.OK: used to complete keypad entries and to acknowledge events.MENU: used to access the main menu. The menu is comprised ofthe following choices:

1:PREFERENCE MENU1:ADJUST CONTRAST2:ADJUST BACKLIGHT3:SELECT UNITS4:SELECT LANGUAGE

2:EVENTS MENU1:ACTIVE EVENTS2:SUMMARY LOG

3:SYSTEM MENU1:MACHINE STATS2:TEST DISPLAY3:AUTOLUBE MENU

STMG 714 - 57 -3/00

➥

¥ Menu

¥ Key pressed indicator

¥ OK

4:SERVICE OPTIONS1:INIT MANUAL LUBE2:PERFORM CALIBRATIONS

LIMP HOME MODE(allows implement movement through the keypad)

MAIN PMP RELIEF TEST(determines and displays main pump relief pressure)

TILT PMP RELIEF TEST (CD only)(determines and displays tilt pump relief pressure)

*BLADE CONTROL HANDLE(calibrates blade control handle)

*RIPPER CONTROL HANDLE(calibrates ripper control handle)

*FNR SHFTER SENSOR(calibrates FNR shifter)

*LEFT BRAKE TOUCH UP(performs left brake touch up)

*RIGHT BRAKE TOUCH UP(performs right brake touch up)

*LEFT CLUTCH HIGH PRE(calibrates left clutch high pressure)

*RIGHT CLTCH HIGH PRE(calibrates right clutch high pressure)

*LEFT BRAKE LOW PRESS(calibrates left brake low pressure)

*RIGHT BRAKE LOW PRES(calibrates right brake low pressure)

*LEFT CLUTCH LOW PRES(calibrates left clutch low pressure)

*RIGHT CLUTCH LOW PRE(calibrates right clutch low pressure)

* Service Mode Protected

CANCEL: used to reject a prompt choice or setting value.HELP: provides "help" messages pertaining to the use of themenu selected.MORE: displays next line of text on message center.Backward Arrow KeyForward Arrow Key

STMG 714 - 58 -3/00

¥ Service options

➥

¥ Cancel

¥ Help

¥ More

¥ Arrow Keys

¥ Tests

¥ Calibrations

GAUGE: shows parameter name and number for first gauge inavailable list. Line two shows parameter value and unit ofmeasure. The Forward Arrow Key allows the operator to scrollone gauge at a time through the list. If the GAUGE key is pressedtwice, the parameters will be shown by categories (Operator,Engine, Transmission, Implement, Service, and All). Pressing theGAUGE key three times will access the parameter ID inputscreen. The operator may enter any parameter ID, press OK andthat parameter will be displayed. SETUP: enables the operator to select and save a grouping ofmachine settings to better meet an operator's method of operation.This mode will be discussed in detail later in the presentation.

STMG 714 - 59 -3/00

STMG 714 - 60 -3/00

35

¥ SETUP key

Setup

The SETUP key enables an operator to select and save a grouping ofmachine performance settings to better meet the method of operation.

When the SETUP key is pressed, the VIDS Message Center text area willdisplay the menu title and the first option. The menu title will remain onthe first line, and the display can be cycled by using the arrow keys. Anoption may be selected by using the OK key when one of the four optionsis being displayed or by using the associated numeric key. Pressing theCANCEL key at this point will return the display back to the Default (orBackground) Mode.

1: SELECT OPERATOROPERATOR - 1OPERATOR - 20

2: SAVE ALL SETTINGS3: RECALL OPERATOR

OPERATOR - 1OPERATOR - 20

4: OPERATOR SETUP1:CHANGE OPER NAME2:RESET TO FACTORY

5: SERV MODE TOGGLE

6: FACTORY DEFAULTS

- ID MENU -

➥

¥ SETUP options

Most menus have more options than can be displayed at the same time.To help keep track of the menu, the first line of the message centerdisplays the menu titles. The second line will initially display the firstoption. The additional options may be viewed by using the arrow keys.

The options are:

- ID MENU -1:SELECT OPERATOR

OPERATOR - 1OPERATOR - 20

2:SAVE ALL SETTINGS3:RECALL OPERATOR

OPERATOR - 1OPERATOR - 20

4:OPERATOR SETUP1:CHANGE OPER NAME2:RESET TO FACTORY

5:SERV MODE TOGGLE6:FACTORY DEFAULTS

This Setup Option allows the operator to choose a predefined numericidentifier, "OPERATOR - n," for the group of settings. To the controlsystem, the operator assumes the identity of the selected"OPERATOR - n." The SELECT OPERATOR list contains 20 possibleselections.

When the SELECT OPERATOR menu item is selected, the VIDSMessage Center text area will display the menu title and the first option.The menu title will remain on the first line, and the additional optionsmay be viewed by using the arrow keys. An option can be selected byusing the OK key when that option is being displayed, or by pressing theassociated numeric key. Pressing the CANCEL key at this point willreturn the display to the main menu.

STMG 714 - 61 -3/00

➥

The options are:

<SELECT OPERATOR>OPERATOR - 1throughOPERATOR - 20

After the selection of OPERATOR - n, the VIDS Message Center textdisplay will respond with a confirmation. The confirmation will remainon the display only long enough to be read, then the display will return tothe main menu. For example, after a selection of OPERATOR - 2, thedisplay will read:

OPERATOR SELECTEDOPERATOR - 2

When an operator is selected, all the current settings are "overwritten." Acommon problem occurs when an operator changes the settings, thenselects an operator. As soon as an operator is selected, the current settingsare changed.

If no selection is made from this menu, the current settings will remainthe same.

The D11R and the Carrydozer electronic systems have several featuresthat can be customized to better match an operating condition or anoperator's style. These features all have "default" settings that work overa broad range of applications. The default settings are called "FactorySettings." Temporary changes to the current settings are called "ShiftSettings." If desired, the "Shift Settings" may be permanently storedwithin the SAVE ALL SETTINGS menu for the currently selectedoperator.

STMG 714 - 62 -3/00

➥

¥ Select operator

Option 2 under the Operator Setup Menu is 2:SAVE ALL SETTINGS.This option is used to store the changes made to the settings associatedwith a SELECT OPERATOR. These changes are permanently saved untilanother SAVE ALL SETTINGS operation is performed. It is important tonote that an OPERATOR - n must first be selected before a SAVE ALLSETTINGS operation can be performed. Performing a SAVE ALLSETTINGS without an operator ID selected has no effect.

If no OPERATOR - n is selected and the operator tries to save thesettings, the display will read:

OPERATOR ID MUST BEPICKED BEFORE SETUP

After selecting 2:SAVE ALL SETTINGS, the VIDS Message Centerwill display:

SETTINGS SAVEDOPERATOR - N- (1-20)

3:RECALL OPERATOR will allow the use of settings stored for anyOPERATOR - n, while maintaining the previously selected ID number.If, for example, one operator wanted to configure the machine in the sameway another operator has stored the settings, that operator could RECALLthe other operator's settings.

If the operator selects RECALL OPERATOR, the display will read thesame as when the SELECT OPERATOR option was first presented. Atthis point, the operator can then choose between the 20 possibleOPERATOR - n settings to RECALL. If a RECALL of OPERATOR - 2operation is successful, the text area will display:

OPERATOR RECALLEDOPERATOR - 2

The RECALL function affects only the Shift Settings. To save or copythe settings, select Option 1: SELECT OPERATOR (if an operator wasnot previously selected), followed by selecting Option 2:SAVE ALLSETTINGS. The current settings or "Shift Settings" will then be savedto the currently selected operator, not the recalled operator.

STMG 714 - 63 -3/00

➥

¥ Save all settings

¥ Recall operator

The Setup Menu Option 4:OPERATOR SETUP is used to change thetitle of the currently selected Operator ID or to automatically reset thesettings to factory settings. Access to the OPERATOR SETUP sub-menuis limited to having previously selected an Operator ID. If access isattempted without first selecting an operator ID, the following message isdisplayed:

4:OPERATOR SETUPNOT AVAILABLE

When access to this sub-menu is obtained, the sub-menus containedwithin can be viewed individually by scrolling through the list using thearrow keys. Pressing the OK key can access a specific sub-menu when itis displayed. If access to one of the sub-menus is attempted withoutSERVICE MODE toggled on, the following message is displayed:

N:MENU NAMESERVICE MODE ONLY

The cancel key will allow exiting the OPERATOR SETUP sub-menu.

The sub-menus contained within 4:OPERATOR SETUP are:

1:CHANGE OPER NAME2:RESET TO FACTORY

When 1:CHANGE OPER NAME is selected, the operator will beallowed to create a custom numeric title for a selected Operator ID. The1:CHANGE OPER NAME sub-menu does not affect the setting storedto the selected operator.

Access to the 1:CHANGE OPER NAME sub-menu is limited to havingpreviously activated the Service Mode (discussed later). When a numerictitle has been entered for the current Operator ID, a feedback messageindicating the process has been completed will be displayed.

The 2:RESET TO FACTORY sub-menu allows the operator to return allthe stored settings of the selected Operator ID to the original factorydefaults. Access to the 2:RESET TO FACTORY sub-menu is limited tohaving previously activated the Service Mode (discussed later). When thereset function is completed, a feedback message indicating the processhas been completed will be displayed.

STMG 714 - 64 -3/00

➥

¥ Operator setup

The 5:SERV MODE TOGGLE sub-menu allows the operator to activateor deactivate the Service Mode. Access to this sub-menu will be allowed,but changing the status of the Service Mode will require entry of theproper password, unless the password is "zeroed out." The password"zeroed out" means that the password has been set to zero (0) through ET.If the password has been zeroed out, the status of the Service Mode canbe changed directly without entering a password.

To view or change the password, Electronic Technician (ET) 3.0 or newermust be connected to the VIDS ECM. From the top menu, select the"Service" option. The pulldown menu will have different options. Select"Configuration." From the configuration window, double click on"Service Mode Code Enable." A popup window will appear. Theoperator or service technician may then enter a numerical password andselect a change. Setting a password to "0" eliminates the passwordprotection in VIDS. While in this window, the operator or servicetechnician may view an existing password if the old one has beenforgotten.

While viewing logged events from the Summary Log when the ServiceMode is active, an OPTION MENU will "pop-up" when the OK key ispressed. The OPTION MENU allows the operator to clear individualevents. If the CLEAR EVENT option is selected, a YES or NO prompt isprovided for a safety check before clearing the event. If YES is selected,the event will be cleared from the Summary Log.

STMG 714 - 65 -3/00

➥

¥ SERVICE MODETOGGLE

¥ Changing passwords

The 6:FACTORY DEFAULTS sub-menu allows the operator to returnthe current settings to the factory defaults without affecting the settingsstored for the current Operator ID. When access has been obtained,pressing the OK key will initiate the restoring process. If the6:FACTORY DEFAULTS function is followed by a 2:SAVEOPERATOR function, the settings stored for the currently selectedOperator ID will be reset to the factory defaults.

Factory defaults contained in VIDS and the Electronic Implement Controlare:

Display Contrast = 70% Display Brightness = 95%Display Units = English Display Language = EnglishLoad Pitch = 10% (CD) Carry Pitch = 0%Load Pitch = 20% (D11R) Spread Pitch = 100% (D11R)Spread Pitch = 65% (CD) Blade Return Height (CD) = 100%Blade Response = Std. Auto Pitch = EnabledAuto Return = Enabled(CD) Auto Spread = Enabled (CD)Auto Return = Disabled (D11R) Auto Spread = Disabled (D11R)Spread Rate (CD) = None Blade Tilt = Dual (D11R)Ripper AutoStow = Ripper RaiseDefault Gauge Parameter = Engine Speed 100

STMG 714 - 66 -3/00

¥ Factory defaults

STMG 714 - 67 -3/00

36

The D11R and the Carrydozer keypads provide "Hot Keys" in addition tothe standard VIDS keys. These Hot Keys are used to access functionsspecific to the Electronic Implement Control.

The Auto Blade Assist (ABA) key (arrow) on the D11R and theCarrydozer provides the operator with three blade pitch positions: theLOAD position, CARRY position, and SPREAD position. The AutoPitch feature automatically brings the blade to these positions at thebeginning of these dozing segments. These positions can either be theFactory Default preset positions or custom positions preset by individualoperators through the keypad using the procedures described in theService Manual for the Implement Electronic Control System (FormSENR9457). The keypad is also used to activate the Auto Blade Assist(ABA) Mode.

OK

MENU

CANCEL

1 2 3

GAUGE

HELP

4 5 6

7 9

MORE

AUT

FLOAT

SET PITCHSETUP

X

VITAL INFORMATION DISPLAY SYSTEM (VIDS)OPERATOR KEYPAD D11R

SET MACH

SNGL TILT

? i+

ABA

➥

¥ ABA (Auto Pitch)

When the ABA Mode is activated, the operator uses the message centeron the Vital Information Display System (VIDS) and the left and rightbuttons on the blade control handle to select the appropriate mode ofoperation. The left button is referred to as the "Mode Select button" andthe right button is the "Manual Select button" (see Slide No. 4).

Pressing the Manual Select button, regardless of the current ABAsegment, will instantly stop the blade movement and the display willchange ABA to the REDY TO CARY segment.

When the operator presses the AUT button on the keypad, an LEDindicator located below the keypad will illuminate and the message centerwill display:

ABA CONTROLIS NOW ON

The text will appear briefly and then the following text will be displayed:

BLD PITCH NOT RESETRESET W/MODE SELECT

When in the Resetting Mode, the implement control will automaticallymove the blade pitch. The operator will then (with the engine preferablyrunning at HIGH IDLE) press the mode select (left) button on the bladecontrol handle to begin the Reset process. The default or background onthe text display will read:

RESETTING 577.7ENG SPD 700

If the operator does not use the Mode Select button to reset the BladePitch, but acknowledges the event and continues with ABA "armed," thedefault on the text display will read:

NOT RESET 577.7ENG SPD 700

STMG 714 - 68 -3/00

➥

When the Blade Pitch Reset function is completed, the text display willread:

REDY TO CARY 577.7ENG SPD 700

The ABA may be "disarmed" by a subsequent selection of the ABA HotKey. If the ABA is "armed" and the AUT Hot Key is pressed, the ABALED will be turned off and the text display will read:

ABA CONTROLIS NOW OFF

STMG 714 - 69 -5/96

STMG 714 - 70 -3/00

37

¥ Change BLADE PITCH

¥ SET PITCH key(arrow)

The SET PITCH Hot Key (arrow) enables an operator to change theBLADE PITCH settings which are associated with an Operator ID. Thesesettings can be changed for any of the LOAD, CARRY, or SPREADsegments of the dozing cycle. When an Operator ID is selected throughthe SETUP Key, the values for these pitch settings are made current. Anoperator may use the SET PITCH Hot Key to change these values for ashift of operation. If the changed values are to be stored for future use,either answer YES to the SAVE TO SELECTED OPERATOR prompt asthe individual changes are made, or use the SETUP Key Option 2:SAVEALL SETTINGS function.

It is important to note that the blade must be reset to allow changing thepitch settings. To reset the blade, the operator must arm the AUT key andthen press the Mode Select button (the left button on the blade controlhandle). Also, the engine should be running at HIGH IDLE and theimplement lockout switch set to the OFF position. When the blade isreset, it will remain reset until the machine implements or the ABA isturned off or if a fault occurs.

OK

MENU

CANCEL

1 2 3

GAUGE

HELP

4 5 6

7 9

MORE

AUT

FLOAT

SET PITCHSETUP

X

VITAL INFORMATION DISPLAY SYSTEM (VIDS)OPERATOR KEYPAD D11R

SET MACH

SNGL TILT

? i+

ABA

➥

¥ BLADE PITCH options When the SET PITCH Hot Key is pressed, the VIDS Message Center textarea will display the menu title and the first option. The menu title willremain on the first line, and the display can be cycled by using the arrowkeys. An option can be selected by using the OK key when that option isbeing displayed or by pressing the associated numeric key. Pressing theCANCEL key at this point will return the display to the Default (orBackground) Mode.

The options are:

SET BLADE PITCH MENU1:SET LOAD PITCH2:SET CARRY PITCH3:SET SPREAD PITCH

If Option 1:SET LOAD PITCH is selected, the display will read:

BLD LOAD PITCH XX%OK NEW VALUE XX%

The percentage value displayed on the top line indicates the currentmachine setting, while the value displayed on the second line indicates theactual pitch of the blade. The range of blade pitch is from FULL PITCHBACK (0%) to PITCH FORWARD (100%).

At this point, the operator can use the blade control handle trigger lever orthe thumb lever to change the actual blade pitch position. The displayedpercentage value on the second line will change according to the changein blade pitch. When the desired LOAD segment blade pitch position isreached, the operator can accept the value with the OK key. The displaywill then read:

BLD LOAD PITCH SET TO XX%

The above display will be replaced by the following prompt afterapproximately four seconds:

SAVE TO SELECTD OPERYES #NO

STMG 714 - 71 -3/00

➥

A NO response will result in the new change only affecting the currentmachine setting (shift setting). The selected operator settings will not beaffected. The following message will be displayed for four seconds:

CURRENT SETTINGS CHNGDBUT NOT SAVED

A YES response will result in the new change affecting both the currentmachine settings and the selected operator settings. The followingmessage will be displayed for four seconds:

LAST CHANGE SAVED

The display will then return to the Default (or Background) Mode.

STMG 714 - 72 -5/96

STMG 714 - 73 -3/00

38

The SET HT (Carrydozer only) Hot Key (arrow) enables the operator tochange the blade return height setting which is associated with anOperator ID. When an Operator ID is selected through the SETUP key,the value for the blade return height setting is made current. An operatormay use the SET HT Hot Key to change the return height for a shift ofoperation only or, if desired, save the return height setting for future useby answering YES to the SAVE TO SELECTD OPERATOR prompt asthe change is made or through the SETUP key Option 2:SAVE ALLSETTINGS. The blade return height is used after a SPREAD segment inthe ABA Mode to determine the blade height during the RETURNsegment.

When the SET HT Hot Key is pressed, the VIDS Message Center textarea display will read:

BLD RET HT XX%OK NEW VALUE XX%

OK

MENU

CANCEL

1 2 3

GAUGE

HELP

4 5 6

7 9

MORE

AUT

FLOAT

SET PITCHSETUP

X

VITAL INFORMATION DISPLAY SYSTEM (VIDS)OPERATOR KEYPAD

SET MACH

? i+

ABA

SET HEIGHT

➥

¥ SET HT (CD only)

The percentage value displayed on the top line indicates the currentmachine setting, while the value displayed on the second line indicates theactual height of the blade. The range of blade height is from FULLYRAISED (100%) to FULLY LOWERED (-100%), where the ground lineequals 0%.

At this point, the operator can use the blade control handle to raise orlower the blade to the desired height. The displayed percentage value onthe second line will change according to the change in blade height.When the desired height is reached, the operator can accept the value bypressing the OK key. The display will then read:

BLD RETURN HT BLD RETURN XX%

The above display will be replaced by the following prompt afterapproximately four seconds:

SAVE TO SELECTD OPERYES #NO

A NO response will result in the new change affecting only the currentmachine setting (shift setting). The selected operator settings will not beaffected. The following message will be displayed for four seconds:

CURRENT SETTINGS CHNGDBUT NOT SAVED

A YES response will result in the new change affecting both the currentmachine settings and the selected operator settings. The followingmessage will display for four seconds:

LAST CHANGE SAVED

The display will return to the Default (or Background) Mode. If theCANCEL key is pressed instead of the OK key while in the ChangeMode, no change will be made in the settings and the display will thenreturn to the Default (or Background) Mode.

NOTE: The minimum return height is 30%.

STMG 714 - 74 -3/00

STMG 714 - 75 -3/00

39

¥ SET MACH key(arrow)

The SET MACH Hot Key (arrow) enables the operator to view a list ofstored settings for a selected operator, change the spread rate of the blade,the response of the blade control handle, and the Auto Stow configurationof the ripper. When the SET MACH Hot Key is pressed, the text areadisplay will read:

- MACH CONFIG -1:VIEW OPERATOR

Pressing the right arrow key will display the other options that areavailable within the SET MACH Hot Key.

If the machine is a Carrydozer equipped with a ripper, the operator willhave the following options when the SET MACHINE Hot Key is pressed:

MACHINE CONFIG1:VIEW OPERATOR2:BLD RESPONSE3:SPREAD RATE

4:AUTOSTOW CONFIG

OK

MENU

CANCEL

1 2 3

GAUGE

HELP

4 5 6

7 9

MORE

AUT

FLOAT

SET PITCHSETUP

X

VITAL INFORMATION DISPLAY SYSTEM (VIDS)OPERATOR KEYPAD D11R

SET MACH

SNGL TILT

? i+

ABA

➥

If the machine is a Carrydozer not equipped with a ripper,4:AUTOSTOW CONFIG will not be available for the operator to select.

If the machine is a standard D11R Tractor equipped with a ripper, theoperator will have the following options available when the SETMACHINE Hot Key is pressed:

MACHINE CONFIG1:VIEW OPERATOR2:BLD RESPONSE3:AUTOSTOW CONFIG

If the machine is a standard D11R not equipped with a ripper, the3:AUTOSTOW CONFIG will not be available for the operator to select.

When the operator selects the 1:VIEW OPERATOR option by pressingthe OK key, the display will read:

1:VIEW OPERATOR<SELECT OPERATOR>

A "programmed" operator ID will display differently than one that has notbeen programmed. If the ID has been programmed, but the name has notbeen changed, the ID will display a "#" in front of the name such as#OPERATOR - 1. If the ID has been programmed and the name has beenchanged with the CHANGE or CREATE commands, the 1 through 6 digitname will be displayed.

If the Operator ID has not been programmed, the name will displayOPERATOR - 1. An unprogrammed Operator ID will contain FACTORYvalues.

The operator may scroll through the 20 different Operator ID's plusCurrent and Factory ID's. When the desired Operator ID is showing,press the OK key. Use the right and left Arrow keys to view the list ofstored settings for the selected Operator ID.

Menu items may vary slightly based on the tractor's configuration.

BLD RESPONSE Values are 1: STD, 2: FINE, 3: FAST.The default is STD.

BLD TILT MODE Values are SNGL TILT and DUAL TILT(D11R only) The default is DUAL TILT.

STMG 714 - 76 -5/96

➥

¥ Operator settings

RIP AUTOSTOW CONFIG Values are RAISE ONLY and RAISE ANDSHANK-IN. The default is RAISE ONLY.

BLD RETURN HT A value between 30 and 100. The default is(D11R CD only) "100."

BLD LOAD PITCH A value between 0 and 100. The default is "10" for D11R CD and "20" for D11R.

BLD CARRY PITCH A value between 0 and 100. The default is"0."

BLD SPREAD PITCH A value between 0 and 100. The default is"65" for D11R CD and "100" for D11R.

SPREAD RATE Values are 1:NONE, 2: SLOW, 3: STD, and4: FAST. The default is NONE.

AUTOPITCH ENABLE ST Values are ENABLED and DISABLED. The default is ENABLED.

AUTOSPRD ENABLE ST Values are ENABLED and DISABLED.The default is DISABLED for D11R and ENABLED for D11R CD.

AUTORETRN ENABLE ST Values are ENABLED and DISABLED.The default is DISABLED D11R and ENABLED for D11R CD.

CONTRAST A value between 25 and 75 (units of five).The default value is "70."

BACKLIGHT A value between 20 and 100 (units of five).The default value is "95."

UNITS Values are METRIC and ENGLISH. The default is ENGLISH.

LANGUAGE Values are ENGLISH, SPANISH, andFRENCH, etc. The default is ENGLISH.

DISPLAY GAUGE PRAM The default value is "100."

STMG 714 - 77 -3/00

➥

When the operator selects option 2:BLADE RESPONSE, the displaywill read:

- BLADE RESPONSE [1-3]1:FINE

The operator may scroll through the three options for BLD RESPONSEby using the right arrow key. An option can be selected by using the OKkey when that option appears on the second line of the message center orby pressing the associated numeric key.

The three options for - BLD RESPONSE - are:

1:FINE#2:STD3:FAST

The "#" symbol indicates the current setting.

To accept a selection, the OK key must be pressed when the desiredoption is displayed on the second line of the display area. A confirmationwill then be displayed on the message center text display. The displaywill show the following confirmation:

BLD RESPONSE SET TO STD

The above display will be replaced by the following prompt afterapproximately four seconds:

SAVE TO SELECTD OPERYES #NO

A NO response will result in the new change affecting only the currentmachine setting (shift setting). The selected operator settings will not beaffected. The following message will be displayed for four seconds:

CURRENT SETTINGS CHNGDBUT NOT SAVED

A YES response will result in the new change affecting both the currentmachine settings and the selected operator settings. The followingmessage will display for four seconds:

LAST CHANGE SAVED

The display will then return to the Default (or Background) Mode. If theCANCEL key is pressed instead of the OK key while in the ChangeMode, no change will be made in the setting and the display will return tothe Default (or Background) Mode.

STMG 714 - 78 -3/00

➥

¥ BLADE RESPONSE

When the operator selects 3:SPREAD RATE the display will read:

SPREAD RATE [1-4]1:NONE

The operator may scroll through the four options for SPREAD RATE byusing the right arrow key. An option can be selected by using the OK keywhen that option appears on the second line of the message center or bypressing the associated numeric key.

The four options for SPREAD RATE are:

#1:NONE2:SLOW3:STD4:FAST

To accept a selection, the OK key must be pressed when the desiredoption is displayed on the second line of the display area. A confirmationwill then be displayed on the message center text display. The displaywill show the following confirmation:

SPREAD RATESET TO STD

The above display will be replaced by the following prompt afterapproximately four seconds:

SAVE TO SELECTD OPERYES #NO

A NO response will result in the new change only affecting the currentmachine setting (shift setting). The selected operator settings will not beaffected. The following message will be displayed for four seconds:

CURRENT SETTINGS CHNGDBUT NOT SAVED

A YES response will result in the new change affecting both the currentmachine settings and the selected operator settings. The followingmessage will display for four seconds:

LAST CHANGE SAVED

The display will then return to the Default (or Background) Mode. If theCANCEL key is pressed instead of the OK key while in the ChangeMode, no change will be made in the setting and the display will return tothe Default (or Background) Mode.

STMG 714 - 79 -5/96

➥

¥ Four options forSPREAD

When the operator selects 4:AUTOSTOW CONFIG, the display willread:

ASTOW CONFIG [1-2]#1: RAISE ONLY

The operator may scroll through the two options for AUTOSTOWCONFIG by using the right arrow key. An option can be selected byusing the OK key when that option appears on the second line of themessage center or by pressing the associated numeric key.

The two options for AUTOSTOW CONFIG are:

#1: RAISE ONLY2: RAISE + SHANK IN

To accept a selection, the OK key must be pressed when the desiredoption is displayed on the second line of the display area. A confirmationwill then be displayed on the message center text display. The displaywill show the following confirmation:

RIP AUTOSTOW CONFIGRAISE ONLY

The above display will be replaced by the following prompt afterapproximately four seconds:

SAVE TO SELECTD OPERYES #NO

A NO response will result in the new change only affecting the currentmachine setting (shift setting). The selected operator settings will not beaffected. The following message will be displayed for four seconds:

CURRENT SETTINGS CHNGDBUT NOT SAVED

A YES response will result in the new change affecting both the currentmachine settings and the selected operator settings. The followingmessage will display for four seconds:

LAST CHANGE SAVED

The display will then return to the Default (or Background) Mode. If theCANCEL key is pressed instead of the OK key while in the ChangeMode, no change will be made in the setting and the display will return tothe Default (or Background) Mode.

STMG 714 - 80 -3/00

➥

¥ Two options for AutoStow

STMG 714 - 81 -3/00

40

¥ FLOAT key (arrow) Two steps are required to activate the BLADE FLOAT function. The firststep is referred to as "arming" FLOAT, and the second step is referred toas "activating" FLOAT.

The FLOAT Hot Key (arrow) is used by the operator to "arm" or "disarm"the BLADE FLOAT feature. When BLADE FLOAT is used, the onlydownward force on the blade is the weight of the blade.

If BLADE FLOAT is "disarmed" and the FLOAT Hot Key is pressed, theBlade Float LED (located below the keypad) will turn on and the textdisplay will read:

BLADE FLOAT CONTROLIS NOW ARMED

OK

MENU

CANCEL

1 2 3

GAUGE

HELP

4 5 6

7 9

MORE

AUT

FLOAT

SET PITCHSETUP

X

VITAL INFORMATION DISPLAY SYSTEM (VIDS)OPERATOR KEYPAD

SET MACH

SNGL TILT

? i+

ABA

➥

After "arming" BLADE FLOAT, the operator must use the blade controlhandle to activate the feature. To activate BLADE FLOAT, the bladecontrol handle is moved to the FULL LOWER position and either held inthat position or allowed to return to the HOLD position. Raising theblade with the blade control handle will deactivate the FLOAT Mode.While the feature is "armed," it may be repeatedly activated ordeactivated.

To "disarm" the BLADE FLOAT feature, press the FLOAT Hot Keyagain. The FLOAT LED will turn OFF and the text display will read:

BLADE FLOAT CONTROLIS NOW OFF

Since the blade lift and the ripper share the same pump, activating theripper will temporarily suspend FLOAT.

Activating the FLOAT Mode will override the ABA function.

STMG 714 - 82 -3/00

¥ FLOAT overrides ABA

STMG 714 - 83 -3/00

41

¥ SNGL TILT (arrow) The SNGL TILT feature is available only on the D11R. This featureallows a tractor with Dual Tilt to be operated in the Single Tilt Mode.When in the Single Tilt Mode, the tractor blade tilts using one tilt cylinderonly.

The SNGL TILT Hot Key is used by the operator to "arm" or "disarm" theSNGL TILT feature. The Single Tilt LED will turn ON or OFF accordingto the toggle. The display will read:

SINGLE TILT CONTROLIS NOW ON (if toggled ON)

SINGLE TILT CONTROLIS NOW OFF (if toggled OFF)

After approximately four seconds, the display will return to the Default(or Background) Mode.

OK

MENU

CANCEL

1 2 3

GAUGE

HELP

4 5 6

7 9

MORE

AUT

FLOAT

SET PITCHSETUP

X

VITAL INFORMATION DISPLAY SYSTEM (VIDS)OPERATOR KEYPAD

SET MACH

SNGL TILT

? i+

ABA

➥

NOTE: The Blade Pitch option will work in the Single Tilt Mode.The current Blade Tilt Mode (Dual or Single) is a storable OperatorSetting. To permanently save a change, use the SETUP key and scrollto the SAVE ALL SETTINGS function. If an Operator ID is selectedthat has Blade Tilt Mode stored as Single Tilt, Single Tilt willactivate.

STMG 714 - 84 -3/00

42

CONCLUSION

This presentation has discussed the major features of the implementsystems for the D11R Tractor and the D11R CD Carrydozer. When usedin conjunction with the service manual, the information in this packageshould help the serviceman correctly diagnose a problem in theimplement systems.

For service repairs, adjustments, and maintenance, refer to the Operationand Maintenance Manual, Service Manual, and other related servicepublications.

STMG 714 - 85 -3/00

1. Title slide2. Electronic Implement Control Inputs3. Implement Controls4. Implement System Component location5. Hydraulic tank6. Dozer control valve7. Electro-hydraulic system filter8. Hydraulic fan circuit9. Fan pumps

10. Electo-hydraulic pilot system11. Dozer lift spool (HOLD)12. Dozer control valve (HOLD)13. Dozer control valve (RAISE)14. Dozer lift spool (Dump valve)15. Quick-drop valve (RAISE)16. Quick-drop valve (LOWER)17. Quick-drop valve (QUICK-DROP)18. Quick-drop valve (LOWER WITH DOWN

PRESSURE)19. Dozer tilt spool (HOLD)20. Dozer tilt spool (TILT RIGHT)21. D11R dual tilt valve (HOLD)22. D11R dual tilt valve (DUAL TILT RIGHT)23 D11R dual tilt valve (SINGLE TILT

RIGHT)24. D11R dual tilt valve (BLADE PITCH

FORWARD)25. D11R CD dual tilt valve (HOLD)26. D11R CD dual tilt valve (TILT RIGHT)27. D11R CD dual tilt valve (BLADE PITCH

forward)28. Ripper control valve29. Ripper and pilot system (RAISE)30. Ripper and pilot system (LOWER)31. Ripper and pilot system (SHANK IN)32. Ripper and pilot system (SHANK OUT)33. VIDS inputs34. VIDS keypad35. Operator setup36. Keypad (ABA)

37. VIDS keypad (SET PITCH)38. VIDS keypad (SET HEIGHT)39. VIDS keypad (SET MACH)40. VIDS keypad (FLOAT)41. VIDS keypad (SINGLE TILT)42. Model view

SLIDE LIST

STMG 714 - 86 -3/00

ELE

CT

RO

-HY

DR

AU

LIC

BLA

DE

CO

NT

RO

LLI

FT

SO

LE

NO

IDS

:P

ITC

H

PIT

CH

PIT

CH

LIF

TT

ILT

RT

ILT

LB

AC

KF

OR

WA

RD

FO

RW

AR

D(D

11R

)(D

11R

CD

)

E1

IMP

LE

ME

NT

LO

CK

OU

T1

11

11

1E

2 L

OW

ER

FL

OA

T0

00

00

0E

3 R

AIS

E1

11

11

1E

4 L

EF

T T

ILT

/PIT

CH

BA

CK

10

00

01

E5

RIG

HT

TIL

T/P

ITC

H F

OR

WA

RD

01

10

10

E6

PIT

CH

RE

GE

NE

RA

TE

0

01

00

0E

7 P

ITC

H1

11

00

0E

8 S

ING

LE

TIL

T0

00

00

0

"1"

- S

OL

EN

OID

IS A

CT

IVA

TE

D"0

" -

SO

LE

NO

ID IS

NO

T A

CT

IVA

TE

D

BL

AD

E L

IFT

AN

D P

ITC

HB

LA

DE

LIF

TB

LA

DE

LIF

T/T

ILT

STMG 714 - 87 - Serviceman's Handout No. 13/00

ELE

CT

RO

-HY

DR

AU

LIC

BLA

DE

CO

NT

RO

LLO

WE

R

SO

LE

NO

IDS

:P

ITC

H

PIT

CH

PIT

CH

LO

WE

RT

ILT

RT

ILT

LB

AC

KF

OR

WA

RD

FO

RW

AR

D(D

11R

)(D

11R

CD

)

E1

IMP

LE

ME

NT

LO

CK

OU

T1

11

11

1E

2 L

OW

ER

FL

OA

T1

11

11

1E

3 R

AIS

E0

00

00

0E

4 L

EF

T T

ILT

/PIT

CH

BA

CK

10

00

01

E5

RIG

HT

TIL

T/P

ITC

H F

OR

WA

RD

01

10

10

E6

PIT

CH

RE

GE

NE

RA

TE

0

01

00

0E

7 P

ITC

H1

11

00

0E

8 S

ING

LE

TIL

T0

00

00

0

"1"

- S

OL

EN

OID

IS A

CT

IVA

TE

D"0

" -

SO

LE

NO

ID IS

NO

T A

CT

IVA

TE

D

BL

AD

E L

OW

ER

AN

D P

ITC

HB

LA

DE

LO

WE

RB

LA

DE

LO

WE

R/T

ILT

STMG 714 - 88 - Serviceman's Handout No. 23/00

ELE

CT

RO

-HY

DR

AU

LIC

BLA

DE

CO

NT

RO

LT

ILT

SO

LE

NO

IDS

:P

ITC

H

PIT

CH

PIT

CH

LIF

T

TIL

T R

TIL

T L

BA

CK

FO

RW

AR

DF

OR

WA

RD

(D11

R)

(D11

R C

D)

(d

ual

) (si

ng

le)

(du

al)

(sin

gle

)

E1

IMP

LE

ME

NT

LO

CK

OU

T1

11

11

11

1E

2 L

OW

ER

FL

OA

T0

00

00

00

0E

3 R

AIS

E0

00

10

00

0E

4 L

EF

T T

ILT

/PIT

CH

BA

CK

10

00

00

11

E5

RIG

HT

TIL

T/P

ITC

H F

OR

WA

RD

01

10

11

00

E6

PIT

CH

RE

GE

NE

RA

TE

0

01

00

00

0E

7 P

ITC

H1

11

00

00

0E

8 S

ING

LE

TIL

T0

00

00

10

1

"1"

- S

OL

EN

OID

IS A

CT

IVA

TE

D"2

" -

SO

LE

NO

ID IS

NO

T A

CT

IVA

TE

DBL

AD

E P

ITC

HB

LA

DE

LIF

TB

LA

DE

TIL

T

STMG 714 - 89 - Serviceman's Handout No. 33/00

AB

DE F G H

JK

LN

OP

Q

IMP

LE

ME

NT

HY

DR

AU

LIC

SY

ST

EM

CO

MP

ON

EN

TS

D11

R A

ND

D11

R C

D C

AR

RY

DO

ZE

R T

RA

CT

OR

C

M

____

LIF

T C

YL

IND

ER

PO

SIT

ION

SE

NS

OR

S (

CD

)__

__ O

IL C

OO

LE

R A

ND

BY

PA

SS

VA

LV

E__

__ L

OG

IC V

AL

VE

____

IMP

LE

ME

NT

PU

MP

____

RIP

PE

R C

ON

TR

OL

VA

LV

E__

__ M

AN

UA

L IM

PL

EM

EN

T L

OW

ER

VA

LV

E__

__ F

AN

MO

TO

R A

ND

MA

KE

UP

VA

LV

E

____

FA

N R

ET

UR

N F

ILT

ER

____

DU

AL

TIL

T C

ON

TR

OL

VA

LV

E__

__ E

LE

CT

RO

-HY

DR

AU

LIC

FIL

TE

R__

__ F

AN

PU

MP

S__

__ H

YD

RA

UL

IC P

RE

SS

UR

E S

EN

SO

RS

____

EC

MS

____

EL

EC

TR

O-H

YD

RA

UL

IC P

ILO

T V

AL

VE

GR

OU

P__

__ H

YD

RA

UL

IC T

AN

K

DIR

EC

TIO

NS

: M

atch

th

e le

tter

to

th

e co

mp

on

ent.

STMG 714 - 90 - Serviceman's Handout No. 43/00

FR

OM

SM

AL

L P

UM

P

FR

OM

LA

RG

E P

UM

P

RO

D E

ND

LIF

T C

YL

IND

ER

HE

AD

EN

D L

IFT

CY

LIN

DE

R

TO

RO

D E

ND

TIL

T C

YL

IND

ER

TO

HE

AD

EN

DT

ILT

CY

LIN

DE

R

FR

OM

PR

ES

SU

RE

CO

MP

EN

SA

TIO

NO

VE

RR

IDE

SO

LE

NO

ID V

AL

VE

FR

OM

PIL

OT

MA

NIF

OL

D

DO

ZE

R C

ON

TR

OL

VA

LV

ER

AIS

E

DIR

EC

TIO

NS

: F

ill in

th

e co

rrec

t co

lors

.

STMG 714 - 91 - Serviceman's Handout No. 53/00

D11

R Q

UIC

K-D

RO

P V

AL

VE

RA

ISE

RO

D E

ND

OIL

HE

AD

EN

D O

IL

DIR

EC

TIO

NS

: F

ill in

th

e co

rrec

t co

lors

.

STMG 714 - 92 - Serviceman's Handout No. 63/00

D11

R Q

UIC

K-D

RO

P V

AL

VE

LO

WE

R

RO

D E

ND

OIL

HE

AD

EN

D O

IL

DIR

EC

TIO

NS

: F

ill in

th

e co

rrec

t co

lors

.

STMG 714 - 93 - Serviceman's Handout No. 73/00

D11

R Q

UIC

K-D

RO

P V

AL

VE

QU

ICK

-DR

OP

RO

D E

ND

OIL

HE

AD

EN

D O

IL

DIR

EC

TIO

NS

: F

ill in

th

e co

rrec

t co

lors

.

STMG 714 - 94 - Serviceman's Handout No. 83/00

D11

R Q

UIC

K-D

RO

P V

AL

VE

LO

WE

R W

ITH

DO

WN

PR

ES

SU

RE R

OD

EN

D O

IL

HE

AD

EN

D O

IL

DIR

EC

TIO

NS

: F

ill in

th

e co

rrec

t co

lors

.

STMG 714 - 95 - Serviceman's Handout No. 93/00

AA

SE

CT

ION

A-A

DO

ZE

R T

ILT

SP

OO

LT

ILT

RIG

HT

TIL

T R

IGH

TT

ILT

LE

FT

FR

OM

SM

AL

L P

UM

P

FR

OM

LA

RG

E P

UM

P

FR

OM

EL

EC

TR

O-H

YD

RA

UL

ICP

ILO

T V

AL

VE

MA

NIF

OL

D

LO

AD

CH

EC

K V

AL

VE

DIR

EC

TIO

NS

: F

ill in

th

e co

rrec

t co

lors

.

STMG 714 - 96 - Serviceman's Handout No. 103/00

FR

OM

TIL

TC

ON

TR

OL

VA

LV

E

TO

TIL

TC

ON

TR

OL

VA

LV

EF

RO

M E

LE

CT

RO

-H

YD

RA

UL

IC M

AN

IFO

LD

FR

OM

TR

IGG

ER

SW

ITC

H

FR

OM

TO

GG

LE

SW

ITC

H

LE

FT

TIL

TC

YL

IND

ER

RIG

HT

TIL

TC

YL

IND

ER

TO

HE

AD

EN

D

TO

RO

D E

ND

D11

R D

UA

L T

ILT

CIR

CU

ITD

UA

L T

ILT

RIG

HT

DIR

EC

TIO

NS

: F

ill in

th

e co

rrec

t co

lors

.

STMG 714 - 97 - Serviceman's Handout No. 113/00

FR

OM

TIL

TC

ON

TR

OL

VA

LV

E

TO

TIL

TC

ON

TR

OL

VA

LV

EF

RO

M E

LE

CT

RO

-H

YD

RA

UL

IC M

AN

IFO

LD

FR

OM

TR

IGG

ER

SW

ITC

H

FR

OM

KE

YP

AD

LE

FT

TIL

TC

YL

IND

ER

RIG

HT

TIL

TC

YL

IND

ER

TO

HE

AD

EN

D

TO

RO

D E

ND

D11

R D

UA

L T

ILT

CIR

CU

ITS

ING

LE

TIL

T R

IGH

T

DIR

EC

TIO

NS

: F

ill in

th

e co

rrec

t co

lors

.

STMG 714 - 98 - Serviceman's Handout No. 123/00

FR

OM

TIL

TC

ON

TR

OL

VA

LV

E

TO

TIL

TC

ON

TR

OL

VA

LV

E

LE

FT

TIL

TC

YL

IND

ER

RIG

HT

TIL

TC

YL

IND

ER

TO

HE

AD

EN

D

TO

RO

D E

ND

FR

OM

EL

EC

TR

O-

HY

DR

AU

LIC

MA

NIF

OL

D

FR

OM

KE

YP

AD

D11

R D

UA

L T

ILT

CIR

CU

ITB

LA

DE

PIT

CH

FO

RW

AR

D

FR

OM

TR

IGG

ER

SW

ITC

H

DIR

EC

TIO

NS

: F

ill in

th

e co

rrec

t co

lors

.

STMG 714 - 99 - Serviceman's Handout No. 133/00

PIT

CH

RE

GE

NE

RA

TE

VA

LV

E

FR

OM

EL

EC

TR

O-

HY

DR

AU

LIC

MA

NIF

OL

D

FR

OM

TR

IGG

ER

SW

ITC

H

LE

FT

TIL

TC

YL

IND

ER

RIG

HT

TIL

TC

YL

IND

ER

TO

HE

AD

EN

D

TO

RO

D E

ND

DU

AL

TIL

T C

IRC

UIT

TIL

T R

IGH

T

TO

/FR

OM

DO

ZE

R T

ILT

VA

LV

E

DIR

EC

TIO

NS

: F

ill in

th

e co

rrec

t co

lors

.

STMG 714 - 100 - Serviceman's Handout No. 143/00

LE

FT

TIL

TC

YL

IND

ER

RIG

HT

TIL

TC

YL

IND

ER

TO

HE

AD

EN

D

TO

RO

D E

ND

FR

OM

EL

EC

TR

O-

HY

DR

AU

LIC

MA

NIF

OL

D

FR

OM

TR

IGG

ER

SW

ITC

H

DU

AL

TIL

T C

IRC

UIT

PIT

CH

FO

RW

AR

D

PIT

CH

RE

GE

NE

RA

TE

VA

LV

E

TO

/FR

OM

DO

ZE

R T

ILT

VA

LV

E

DIR

EC

TIO

NS

: F

ill in

th

e co

rrec

t co

lors

.

STMG 714 - 101 - Serviceman's Handout No. 153/00

TO

DO

ZE

RC

ON

TR

OL

VA

LV

E

RIP

PE

R A

ND

PIL

OT

SY

ST

EM

SR

AIS

E

LO

AD

CH

EC

KV

AL

VE

IMP

LE

ME

NT

PU

MP

RIP

PE

R L

IFT

SP

OO

L

RIP

PE

R T

IPS

PO

OL

IMP

LE

ME

NT

LO

CK

OU

TS

OL

EN

OID

VA

LV

E

BL

AD

ER

AIS

ET

ILT

RIG

HT

/D

UM

PR

IPP

ER

LO

WE

RR

IPP

ER

IN

RIP

PE

RO

UT

RIP

PE

RR

AIS

ET

ILT

LE

FT

/R

AC

K

BL

AD

EL

OW

ER

/F

LO

AT

MA

KE

UP

VA

LV

E

FA

N P

UM

PS

LIF

TC

YL

IND

ER

S

TO

PR

ES

SU

RE

CO

MP

EN

SA

TIO

NO

VE

RR

IDE

SO

LE

NO

ID V

AL

VE

DIR

EC

TIO

NS

: F

ill in

th

e co

rrec

t co

lors

.

STMG 714 - 102 - Serviceman's Handout No. 163/00

TO

DO

ZE

RC

ON

TR

OL

VA

LV

E

RIP

PE

R A

ND

PIL

OT

SY

ST

EM

SL

OW

ER

LO

AD

CH

EC

KV

AL

VE

IMP

LE

ME

NT

PU

MP

RIP

PE

R L

IFT

SP

OO

L

RIP

PE

R T

IPS

PO

OL

IMP

LE

ME

NT

LO

CK

OU

TS

OL

EN

OID

VA

LV

E

BL

AD

ER

AIS

ET

ILT

RIG

HT

/D

UM

PR

IPP

ER

LO

WE

RR

IPP

ER

IN

RIP

PE

RO

UT

RIP

PE

RR

AIS

ET

ILT

LE

FT

/R

AC

K

BL

AD

EL

OW

ER

/F

LO

AT

MA

KE

UP

VA

LV

E

FA

N P

UM

PS

LIF

TC

YL

IND

ER

S

TO

PR

ES

SU

RE

CO

MP

EN

SA

TIO

NO

VE

RR

IDE

SO

LE

NO

ID V

AL

VE

DIR

EC

TIO

NS

: F

ill in

th

e co

rrec

t co

lors

.

STMG 714 - 103 - Serviceman's Handout No. 173/00

SESV1714 Printed in U.S.A.3/00