LA525MODEL

OPERATOR'S MANUAL

1AIABEFAP0280

FRONT LOADER

KUBOTA Corporation

U.S.A. : KUBOTA TRACTOR CORPORATION3401 Del Amo Blvd., Torrance, CA 90503, U.S.A.Telephone : (310)370-3370

Canada : KUBOTA CANADA LTD.5900 14th Avenue, Markham, Ontario, L3S 4K4, CanadaTelephone : (905)294-7477

France : KUBOTA EUROPE S.A.S19-25, Rue Jules Vercruysse, Z.I. BP88, 95101 Ar enteuil Cedex, FranceTelephone : (33)1-3426-3434

Italy : KUBOTA EUROPE S.A.S Italy BranchVia Grandi, 29 20068 Peschiera Borrome (MI) ItalyTelephone : (39)02-51650377

Germany : KUBOTA (DEUTSCHLAND) GmbHSenefelder Str. 3-5 63110 Rod au /Nieder-Roden, GermanyTelephone : (49)6106-873-0

U.K. : KUBOTA (U.K.) LTD.Dormer Road, Thame, Oxfordshire, OX9 3UN, U.K.Telephone : (44)1844-214500

Spain : KUBOTA ESPAÑA S.A.Avenida Recomba No.5, Poli no Industrial la La una, Le anes, 28914 (Madrid) SpainTelephone : (34)91-508-6442

Australia : KUBOTA TRACTOR AUSTRALIA PTY LTD.25-29 Permas Way, Tru anina, VIC 3029, AustraliaTelephone : (61)-3-9394-4400

Malaysia : SIME KUBOTA SDN. BHD.No.3 Jalan Sepadu 25/123 Taman Perindustrian Axis,Seksyen 25, 40400 Shah Alam, Selan or Darul Ehsan MalaysiaTelephone : (60)3-736-1388

Philippines : KUBOTA PHILIPPINES, INC.155 Panay Avenue, South Trian le Homes, 1103 Quezon City, PhilippinesTelephone : (63)2-9201071

Taiwan : SHIN TAIWAN AGRICULTURAL MACHINERY CO., LTD.16, Fen pin 2nd Rd, Taliao Shian Kaohsiun 83107, Taiwan R.O.C.Telephone : (886)7-702-2333

Indonesia : PT KUBOTA MACHINERY INDONESIATower A at Ei htyEi ht@Kasablanka Lantai 16Jalan Raya Casablanka Kav. 88, Jakarta 12870 IndonesiaTelephone : (62)-21-29568-720

Thailand : SIAM KUBOTA CORPORATION CO., LTD.101/19-24 Moo 20, Navanakorn Industrial Estate, Tambon Khlon nuen , Amphur Khlon luan ,Pathumthani 12120, THAILANDTelephone : (66)2-909-0300

Korea : KUBOTA KOREA CO., LTD.106-24 Mon san-Ri, Mankyun -Up, Kimje-City, Chonrapuk-Do, KOREATelephone : (82)-63-544-5822

India : KUBOTA AGRICULTURAL MACHINERY INDIA PVT. LTD.Re us, Level 2 Altius, Olympia Tech Park, No.1 SIDCO Industrial Estate, Guindy, Chennai 600032, TN, IndiaTelephone : (91)-44-4299-4237

Vietnam : KUBOTA VIETNAM CO., LTD.Lot B-3A2-CN, My Phuoc 3 Industrial Park, Ben Cat District, Binh Duon Province, VietnamTelephone : (84)-650-3577-507

Western Division : 1175 S. Guild Avc., Lodi, CA 95240Telephone : (209)334-9910

Central Division : 14855 FAA Blvd., Fort Worth, TX 76155Telephone : (817)571-0900

Northern Division : 6300 at One Kubota Way, Groveport, OH 43125Telephone : (614)835-1100

Southeast Division : 1025 Northbrook Parkway, Suwanee, GA 30024Telephone : (770)995-8855

English (U.S.A)Code No. 7J294-6911-2AS. G. 2-2 . -. K

LA525

© KUBOTA Corporation 2013

READ AND SAVE THIS MANUALPRINTED IN U.S.A.

ABBREVIATION LISTAbbreviations Definitions

2WD

4WD

API

ASABE

ASTM

DIN

DT

fpm

GST

Hi-Lo

HST

m/s

PTO

RH/LH

ROPS

rpm

r/s

SAE

SMV

2-Wheel Drive

4-Wheel Drive

American Petroleum Institute

American Society of Agricultural and Biological Engineers, USA

American Society of Testing and Materials, USA

Deutsches Institut für Normung, GERMANY

Dual Traction [4WD]

Feet Per Minute

Glide Shift Transmission

High Speed-Low Speed

Hydrostatic Transmission

Meters Per Second

Power Take Off

Right-hand and left-hand sides are determined by facing in thedirection of forward travel

Roll-Over Protective Structures

Revolutions Per Minute

Revolutions Per Second

Society of Automotive Engineers, USA

Slow Moving Vehicle

CONTENTS

SAFE OPERATION ............................................................................................. -1

SERVICING OF LOADER ........................................................................................... 1

SPECIFICATIONS....................................................................................................... 2SUITABLE TRACTOR ............................................................................................. 2LOADER SPECIFICATIONS ................................................................................... 2BUCKET SPECIFICATIONS.................................................................................... 3DIMENSIONAL SPECIFICATIONS ......................................................................... 3OPERATIONAL SPECIFICATIONS......................................................................... 4LOADER TERMINOLOGY....................................................................................... 6

PRE-OPERATION CHECK ......................................................................................... 7LUBRICATION......................................................................................................... 7TRANSMISSION FLUID .......................................................................................... 7TREAD..................................................................................................................... 8REAR BALLAST ...................................................................................................... 8

Liquid ballast in rear tires.................................................................................................. 8TIRE INFLATION ..................................................................................................... 9

Inflation pressure .............................................................................................................. 9TEST OPERATION.................................................................................................. 9REMOVING AIR FROM THE HYDRAULIC SYSTEM ............................................. 9

OPERATING THE LOADER...................................................................................... 10FILLING THE BUCKET.......................................................................................... 10LIFTING THE LOAD .............................................................................................. 10CARRYING THE LOAD ......................................................................................... 11DUMPING THE BUCKET ...................................................................................... 11LOWERING THE BUCKET.................................................................................... 11OPERATING WITH FLOAT CONTROL................................................................. 11LOADING FROM A BANK ..................................................................................... 12PEELING AND SCRAPING ................................................................................... 12LOADING LOW TRUCKS OR SPREADERS FROM A PILE................................. 13BACKFILLING........................................................................................................ 13HANDLING LARGE HEAVY OBJECTS................................................................. 14VALVE LOCK......................................................................................................... 14

Standard valve................................................................................................................ 14FRONT GUARD..................................................................................................... 15BUCKET LEVEL INDICATOR (if equipped)........................................................... 15ATTACHING ATTACHMENTS (if equipped) ......................................................... 16DETACHING ATTACHMENTS.............................................................................. 17DISMOUNTING THE LOADER.............................................................................. 18MAINTENANCE..................................................................................................... 18ATTACHMENTS .................................................................................................... 18

Quick attach bucket ........................................................................................................ 18Bale spear....................................................................................................................... 18Pallet fork........................................................................................................................19

CONTENTS

ASSEMBLE PALLET FORK .................................................................................. 19

MAINTENANCE......................................................................................................... 20LUBRICATION....................................................................................................... 20RE-TIGHTENING OF HARDWARE....................................................................... 20DAILY CHECKS..................................................................................................... 21EVERY 50 HOURS................................................................................................ 21

Checking main frame bolt torque.................................................................................... 21General torque specification ........................................................................................... 22

REMOVING THE LOADER ....................................................................................... 23

STORING THE LOADER .......................................................................................... 25

REINSTALLING THE LOADER................................................................................. 26

-1SAFE OPERATION

SAFE OPERATION

Most loader equipment accidents can be avoided by following simple safety precautions.These safety precautions, if followed at all times, will help you operate your loader safely.

1. Know your equipment and its limitations.Allow only trained personnel to operate or service thisequipment.

2. Read and understand all instructions and precautionsfound in both the tractor and the loader operator'smanuals before using the loader.Lack of knowledge can lead to accidents.

3. It is the owner's responsibility to ensure that anyonewho will operate the loader reads this manual first andbecomes familiar with the safe operation of the loader.

4. For your safety, a ROPS with a seat belt is stronglyrecommended by KUBOTA in almost all applications.If your tractor has a foldable ROPS, fold it down onlywhen absolutely necessary and raise it up and lock itagain as soon as possible. Do not wear the seat beltwhen a foldable ROPS is down or a fixed ROPS isremoved. If you have any questions, consult your localKUBOTA dealer.Always use the seat belt when the tractor is equippedwith a ROPS. Never use the seat belt when the tractoris not equipped with a ROPS.

5. Visually check for hydraulic leaks and broken, missing,or malfunctioning parts.Make necessary repairs before operating.

6. Replace damaged or illegible safety labels. Seefollowing pages for required labels.

7. When the front loader is mounted on the tractor, enterand exit the operator's seat only from left side of thetractor.

8. Engage the loader control valve lock to preventaccidental actuation when the implement is not in useor during transport. Do not utilize the valve lock formachine maintenance or repair.

9. Assemble, remove and reinstall the loader only asdirected in this manual. Failure to do this could resultin serious personal injury or death.

10.Follow the precautions below when attachingattachments.

A Make sure both handles (LH, RH) contact the earplates at the points (A) and are all the way down.

A Make sure both lock pins (LH, RH) protrude throughthe pin slots.

A Kubota recommends the use of Kubota attachmentson Kubota loaders. Non-Kubota attachments, if used,must comply with ISO 24410, first edition 2005-04-15.

A Use of a non-Kubota attachment that does not complywith ISO 24410 or the improper positioning ofhandle(s) or non-protrusion of pin(s) may result indetachment of the attachment or deformation, causingloss of performance, personal injury or death.

1. BEFORE OPERATING THE LOADER

(1) Handle(2) Ear plate(3) Pin slot(4) Lock pin

(A) The handle contacts the ear plate at the points.

SAFE OPERATION-2

1. Operate the loader only when properly seated at thecontrols. Do not operate from the ground.

2. Move and turn the tractor at low speeds.3. Never allow anyone to get under the loader bucket or

reach through the boom when the bucket is raised.4. Keep children, others and livestock away when

operating loader and tractor.5. Do not walk or work under a raised loader bucket or

attachment unless it is securely blocked and held inposition.

6. For tractor stability and operator safety, rear ballastmust be added to the 3-point hitch and to the rearwheels when using loader.

7. To increase stability adjust the rear wheels to thewidest setting that is suitable for your application.

8. Exercise extra caution when operating the loader witha raised bucket or attachment.

9. Do not lift or carry any person on the loader, in thebucket, or other attachment.

10.Avoid loose fill, rocks and holes. They can bedangerous for loader operation or movement.

11.Avoid overhead wires and obstacles when the loaderis raised. Contacting electric lines can causeelectrocution.

12.Gradually stop the loader boom when lowering orlifting.

13.Use caution when handling loose or shiftable loads.14.Using loaders for handling large, heavy, or shiftable

objects is not recommended without proper handlingattachments.

15.Handling large heavy objects can be extremelydangerous due to :A Danger of rolling the tractor over.A Danger of upending the tractor.A Danger of the object rolling or sliding down the

loader boom onto the operator.16. If you must perform this sort of work (item 15), protect

yourself by :A Never lift the load higher than necessary to clear

the ground.A Add rear ballast to the tractor to compensate for the

load or use rear implement.A Never lift large objects with equipment that may

permit them to roll back onto the operator.A Move slowly and carefully, avoiding rough terrain.

17.Never lift or pull a load from any point on the loaderwith a chain, rope, or cable. Doing so could cause arollover or serious damage to the loader.

18.Be extra careful when operating the tractor on a slope,always operate up and down, never across the slope.Do not operate on steep slopes or unstable surfaces.

19.When operating another implement on a hillside, besure to remove the loader to reduce the risk of rollover.

20.Carry loader boom at a low position during transport.(You should be able to see over the bucket.)

21.Allow for the loader length when making turns.

1. When loader work is complete and parking or storing,choose flat and hard ground. Lower the loader boomto the ground, stop the engine, set the brakes andremove the key before leaving the tractor seat.

2. Make sure the detached loader is on stands and on ahard, level surface.

3. Before disconnecting hydraulic lines, relieve allhydraulic pressure by moving the controls.

4. Do not remove the loader from the tractor without anapproved bucket attached.

1. Always wear safety goggles when servicing orrepairing the machine.

2. Do not modify the loader. Unauthorized modificationmay affect the function of the loader, which may resultin personal injury.

3. Do not use the loader as a work platform or a jack tosupport the tractor for servicing or maintenance.Securely support the tractor or any machine elementswith stands or suitable blocking before workingunderneath.For your safety, do not work under any hydraulicallysupported devices. They can settle or suddenly leakdown or be accidentally lowered.

4. Escaping hydraulic oil under pressure can havesufficient force to penetrate the skin, causing seriouspersonal injury. Do not use hands to search forsuspected leaks. If injured by escaping fluid, obtainmedical treatment immediately.

5. Do not tamper with the relief valve setting. The reliefvalve is pre-set at the factory. Changing the settingcan cause overloading of the loader and tractor whichmay result in serious personal injury.

6. When servicing or replacing pins in cylinder ends,bucket, etc., always use a brass drift and hammer.Failure to do so could result in injury from flying metalfragments.

2. OPERATING THE LOADER3. AFTER OPERATING THE LOADER

4. SERVICING THE LOADER

-3SAFE OPERATION

DANGER,WARNING AND CAUTION LABELS

SAFE OPERATION-4

-5SAFE OPERATION

CARE OF DANGER,WARNING AND CAUTION LABELS1. Keep danger, warning and caution labels clean and free from obstructing material.2. Clean danger, warning and caution labels with soap and water, dry with a soft cloth.3. Replace damaged or missing danger, warning and caution labels with new labels from your local KUBOTA dealer.4. If a component with danger, warning and caution label (s) affixed is replaced with new part, make sure new label (s) is

(are) attached in the same location (s) as the replaced component.5. Mount new danger, warning and caution labels by applying on a clean dry surface and pressing any bubbles to outside

edge.

1SERVICING OF LOADER

SERVICING OF LOADER

Your dealer is interested in your new loader and has thedesire to help you get the most value from it. After readingthis manual thoroughly, you will find that you can do someof the regular maintenance yourself.However, when in need of parts or major service, be sureto see your KUBOTA dealer.For service, contact the KUBOTA dealership from whichyou purchased your loader or your local KUBOTA dealer.When in need of parts, be prepared to give your dealer theloader serial number.Locate the serial numbers now and record them in thespace provided.

KUBOTA LOADER

Model

Serial Number

Date of Purchase

Name of Dealer

(To be filled in by purchaser)

(1) Serial number

2 SPECIFICATIONS

SPECIFICATIONS

SUITABLE TRACTORLA525: L2501, L3301, L3901

LOADER SPECIFICATIONSLOADER MODEL LA525

TRACTOR MODEL L2501 L3301, L3901

WHEEL BASE(WB) mm (in.) 1610 (63.3)

FRONT TIRES 7 - 16

REAR TIRES 11.2 - 24

BOOM CYLINDERBORE mm (in.) 45 (1.77)

STROKE mm (in.) 476 (18.7)

BUCKET CYLINDERBORE mm (in.) 45 (1.77)

STROKE mm (in.) 476 (18.7)

CONTROL VALVE 3 Position bucket control valve type

One Detent Float Position, Regenerative Bucket Dump,Power Beyond Circuit

RATED FLOW L/min (GPM) 23.9 (6.3)

MAXIMUM PRESSURE MPa (kg/cm , psi) 15.7 (160, 2275) 16.2 (165, 2347)

NET WEIGHT(APPROXIMATE) kg (lbs.) 365 (805)

3SPECIFICATIONS

BUCKET SPECIFICATIONS

DIMENSIONAL SPECIFICATIONS

LOADER MODEL LA525

MODEL SQUARE 60" SQUARE 66"

TYPE RIGID QUICK ATTACH

WIDTH mm (in.) 1525 (60) 1675 (66)

DEPTH (L) mm (in.) 463 (18.2) 458 (18)

HEIGHT (M) mm (in.) 559 (22) 562 (22.1)

LENGTH (N) mm (in.) 511 (20.1) 544 (21.4)

CAPACITYSTRUCK m (CU.FT.) 0.22 (7.8) 0.23 (8.1)

HEAPED m (CU.FT.) 0.26 (9.2) 0.28 (9.9)

WEIGHT kg (lbs.) 82 (181) 120 (265)

LOADER MODEL LA525

TRACTOR MODEL L2501, L3301, L3901

BUCKET TYPE RIGID

A MAX. LIFT HEIGHT (TO BUCKET PIVOT PIN) mm (in.) 2394 (94.3)

B MAX. LIFT HEIGHT UNDER LEVEL BUCKET mm (in.) 2224 (87.6)

C CLEARANCE WITH BUCKET DUMPED mm (in.) 1936 (76.2)

D REACH AT MAX. LIFT HEIGHT (DUMPING REACH) mm (in.) 645 (25.4)

E MAX. DUMP ANGLE deg. 40

F REACH WITH BUCKET ON GROUND mm (in.) 1618 (63.7)

G BUCKET ROLL-BACK ANGLE deg. 31

H DIGGING DEPTH mm (in.) 176 (6.9)

J OVERALL HEIGHT IN CARRYING POSITION mm (in.) 1302 (51.3)

SPECIFICATIONS4

OPERATIONAL SPECIFICATIONSLOADER MODEL LA525

TRACTOR MODEL L2501 L3301, L3901

BUCKET TYPE RIGID

U LIFT CAPACITY (BUCKET PIVOT PIN, MAX. HEIGHT) kg (lbs.) 491 (1082) 513 (1131)

V LIFT CAPACITY (500 mm FORWARD, MAX. HEIGHT) kg (lbs.) 372 (820) 388 (855)

W LIFT CAPACITY (BUCKET PIVOT PIN, 1500 mm HEIGHT) kg (lbs.) 649 (1431) 676 (1490)

X LIFT CAPACITY (500 mm FORWARD, 1500 mm HEIGHT) kg (lbs.) 515 (1135) 536 (1182)

Y BREAKOUT FORCE (BUCKET PIVOT PIN) N (lbf.) 10554 (2373) 10951 (2462)

Z BREAKOUT FORCE (500mm FORWARD) N (lbf.) 8033 (1806) 8335 (1874)

VV BUCKET ROLL-BACK FORCE AT MAX. HEIGHT N (lbf.) 9403 (2114) 9685 (2177)

XX BUCKET ROLL-BACK FORCE AT 1500 mm N (lbf.) 11646 (2618) 11998 (2697)

ZZ BUCKET ROLL-BACK FORCE AT GROUND LEVEL N (lbf.) 9545 (2146) 9855 (2215)

RAISING TIME (RATED FLOW) sec. 4.1 3.5

LOWERING TIME (RATED FLOW) sec. 2.4 2.3

BUCKET DUMPING TIME (RATED FLOW) sec. 2.0 1.7

BUCKET ROLLBACK TIME (RATED FLOW) sec. 2.6 2.2

5SPECIFICATIONS

LA525 (L2501)

LA525 (L3301, L3901)

SPECIFICATIONS6

LOADER TERMINOLOGY

(1) Loader control lever(2) Side frame(3) Mounting pin(4) Main frame(5) Boom cylinder

(6) Boom(7) Bucket cylinder(8) Bucket

7PRE-OPERATION CHECK

PRE-OPERATION CHECK

LUBRICATIONLubricate all grease fittings with SAE multipurposegrease.

TRANSMISSION FLUIDCheck the tractor transmission fluid level. Add fluid ifnecessary. Refer to the tractor operator's manual forinstructions and proper fluid. Repeat this check afterpurging air from the system. At that time, it will benecessary to add transmission fluid.[Manual Transmission Type]

[HST Type]

A To check the tractor transmission fluid level, lower thebucket to the ground and lower the 3 point hitch.

(1) Dipstick (A) Oil level is acceptable within this range

(1) Dipstick (A) Oil level is acceptable within this range

(1) Oil inlet

PRE-OPERATION CHECK8

TREAD1. Set front tread as follows.

A Setting tread wider than recommended may causepremature failure of front axle components due toexcessive stress.

2. For better stability, set the rear tread as followsdepending on the requirements of the work beingdone.

REAR BALLAST

To avoid serious injury:A For tractor stability and operator's safety, rear

ballast should be added to the rear of thetractor in the form of 3-point counter weightand rear wheel ballast. The amount of rearballast will depend on the application.

BLiquid ballast in rear tiresWater and calcium chloride solution provides a safe andeconomical ballast. Used properly, it will not damage tires,tubes or rims. The addition of calcium chloride isrecommended to prevent the water from freezing. Use ofthis method of weighting the wheels has full approval ofthe tire manufacturers. See your tire dealer for thisservice.Liquid weight per tire (75 Percent filled)

A Do not fill tires with water or solution more than 75% offull capacity (to the valve stem level at 12 o'clockposition).

A When mounting a heavy rear implement, liquid in thetires may not be required.

A Do not add liquid ballast or any other weights to thefront tires.

Front Tread

2WD 4WD

L2501L3301L3901

Front axle is not adjustable.

Front axle is not adjustable.

Rear Tread

L2501L3301L3901

1115 mm (43.9 in.) or more

Implement as Counter Weight

6' Box Scraper Approx. 450 kg (990 lbs.)

Rotary Tiller Approx. 240 kg (530 lbs.)

Back Hoe Approx. 770 kg (1690 lbs.)

Tire sizes 11.2-24 15-19.5

Slush free at -10 (14 )Solid at -30 (-22 )[Approx. 1 kg (2 lbs.)CaCl per 4 L (1 gal.) of water]

105 kg(230 lbs.)

140 kg(309 lbs.)

Slush free at -24 (-11 )Solid at -47 (-52 )[Approx. 1.5 kg (3.5 lbs.)CaCl per 4 L (1 gal.) of water]

110 kg(240 lbs.)

150 kg(331 lbs.)

Slush free at -47 (-52 )Solid at -52 (-62 )[Approx. 2.25 kg (5 lbs.)CaCl per 4 L (1 gal.) of water]

115 kg(253 lbs.)

160 kg(353 lbs.)

(1) Air(2) Water

(A) Correct: 75% Full Air compresses like a cushion(B) Incorrect: 100% Full Water can not be compressed

9PRE-OPERATION CHECK

TIRE INFLATIONEnsure that the tractor tires are properly inflated.Refer to the tractor operator's manual for optional tires.

BInflation pressure

TEST OPERATION

To avoid serious personal injury:A Keep engine speed at low idle during the test

operation.A Escaping hydraulic fluid under pressure can

have sufficient force to penetrate skin, causingserious personal injury.Before disconnecting lines, be sure to relieveall pressure by moving the controls.Before applying pressure to the system, besure all connections are tight and that lines,tubes and hoses are not damaged.Fluid escaping from a very small hole can bealmost invisible. Use a piece of cardboard orwood, rather than your hands to search forsuspected leaks.If injured by escaping fluid, see a doctor atonce. Serious infection or allergic reaction willdevelop if proper medical treatment is notadministered immediately.

A When the lever is at each corner position marked byasterisk (*) or lower left, boom and bucket cylinderswork at the same time. However, the lower left position(Raise & Roll back) is not recommended for scoopingbecause of insufficient lift force.

To begin a test operation, slightly move the control leverfrom the "N" position. Slowly raise the loader boom justenough for the bucket to clear the ground when fullydumped. Slowly work through the dump and roll backcycles.

A If the boom or bucket does not work in the directionsindicated on the label, lower the bucket to the ground,stop the engine, and relieve all hydraulic pressure.Recheck and correct all hydraulic connections and oillevel.

REMOVING AIR FROM THE HYDRAULIC SYSTEMRepeat raising and lowering the boom and bucketoperations until all the air is removed from the system andthe system responds properly.

A Do not move the control lever into the float positionwhen the bucket is off the ground.

Tire sizes Inflation Pressure

Rear11.2-24, 4PR 100 kPa (1.0 kgf/cm , 14 psi)

13.6-16, 4PR 100 kPa (1.0 kgf/cm , 14 psi)

15-19.5, 6PR 210 kPa (2.1 kgf/cm , 30 psi)

Front

5.00-15, 4PR 220 kPa (2.2 kgf/cm , 32 psi)

7-16, 6PR 180 kPa (1.8 kgf/cm , 26 psi)

23 x 8.50-12, 4PR 160 kPa (1.6 kgf/cm , 23 psi)

25 x 8.50-14, 6PR 160 kPa (1.6 kgf/cm , 23 psi)

27 x 8.50-15, 6PR 210 kPa (2.1 kgf/cm , 30 psi)

10 OPERATING THE LOADER

OPERATING THE LOADER

The loader should be operated with the tractor enginespeed depending on the application and the operator'slevel of experience. Excessive speeds are dangerous,and may cause bucket spillage and unnecessary strain onthe tractor and loader.When operating in temperatures below -1 (30 ), runthe tractor engine below 1200 rpm until the oiltemperature exceeds -1 (30 ).The following text and illustrations offer suggested loaderand tractor operating techniques.

To reduce the possibility of roll over:A It is not recommended that the loader be

attached when operating another implement ona hillside.

A Before operating the loader in rough terrain, removethe mower to avoid damage to the mower.

FILLING THE BUCKETApproach and enter the pile with a level bucket.

Ease control lever toward you and then left to rollback andlift the bucket.

The rollback and lifting of the bucket will increaseefficiency because a level bucket throughout the liftingcycle resists bucket lift and increases breakaway effort.

A Do not be concerned if the bucket is not completelyfilled during each pass. Maximum productivity isdetermined by the amount of material loaded in agiven period of time. Time is lost if two or moreattempts are made to fill the bucket on each pass.

LIFTING THE LOADWhen lifting the load, keep the bucket positioned to avoidspillage.

To avoid serious personal injury:A Do not attempt to lift bucket loads in excess of

the loader capacity.A Before raising the bucket to full height, make

sure the tractor is on level ground. If not, it maytip over, even if the tractor is not moving.

11OPERATING THE LOADER

CARRYING THE LOADPosition the bucket just below the level of the tractor hoodfor maximum stability and visibility, whether the bucket isloaded or empty.

Use extreme care when operating the loader on a slope.Keep the bucket as low as possible. This keeps the bucketand tractor center of gravity low and will provide maximumtractor stability.

To avoid serious personal injury:A Be extra careful when working on inclines.A When operating on a slope, always operate up

and down the slope, never across the slope.

When transporting a load, keep the bucket as low aspossible to avoid tipping, in case a wheel drops in a rut.

DUMPING THE BUCKETLift the bucket just high enough to clear the side of thevehicle. Move the tractor in as close to the side of thevehicle as possible, then dump the bucket.

LOWERING THE BUCKETAfter the bucket is dumped, back away from the vehiclewhile lowering and rolling back the bucket.

OPERATING WITH FLOAT CONTROLDuring operation on hard surfaces, keep the bucket leveland put the lift control in the float position to permit thebucket to float on the working surfaces.If hydraulic down pressure is exerted on the bucket it willwear faster than normal.

The float position will also avoid mixing of surface materialwith stockpile material. The float position will reduce thechance of surface gouging while removing snow or othermaterial, or when working with a blade.

OPERATING THE LOADER12

LOADING FROM A BANKChoose a forward gear that provides a safe ground speedand power for loading.

To avoid serious personal injury:A Be extra careful when working on inclines.A When operating on a slope, always operate up

and down the slope, never across the slope.

A Loader lift and break-away capacity diminish asloading height is increased.

Side cutting is a good technique for cutting down a bigpile. Wheel width should not exceed the bucket width forthis procedure.

If the pile sides are too high and liable to cause cave-in,use the loader to break down the sides until a slot can becut over the top.

Another method for large dirt piles is to build a ramp toapproach the pile.

It is important to keep the bucket level when approachinga bank or pile. This will help avoid gouging the work area.

PEELING AND SCRAPINGUse a slight bucket down angle, travel forward, and holdthe lift control forward to start the cut. Make a short cutand break-out cleanly.

With the bucket level, start a cut at the notchapproximately 2 in. deep. Hold the depth by feathering thebucket control to adjust the cutting edge up or down.When the front tires enter the notch, adjust the boomcylinder to maintain proper depth.

Make additional passes until the desired depth is reached.During each pass, use only the bucket control while atworking depth. This will allow you to concentrate oncontrolling the bucket angle to maintain a precise cut.

13OPERATING THE LOADER

LOADING LOW TRUCKS OR SPREADERS FROM A PILEFor faster loading, minimize the angle of turn and lengthof run between pile and spreader.

Backgrade occasionally with a loaded bucket to keep thework surface free of ruts and holes. Also, hold the liftcontrol forward so the full weight of the bucket is scrapingthe ground. Use the heel of the bucket

BACKFILLINGApproach the pile with the bucket flat.

Poor operating methods will move less dirt and make itmore difficult to hold a level grade.

A Do not use the bucket in the dumped position forbulldozing. As shown above, this method will imposesevere shock loads on the dump-linkage, the bucketcylinders, and the tractor.

Leave dirt in the bucket because dumping on each passwastes time.

Operate at right angles to the ditch. Taking as big a biteas the tractor can handle.

Leave dirt which drifts over the side of the bucket for finalcleanup.

Pile dirt on the high side for easier backfilling on a slope.

OPERATING THE LOADER14

HANDLING LARGE HEAVY OBJECTS

To avoid serious personal injury or death:A Handling large, heavy objects can be

dangerous due to :(A)Danger of rolling the tractor over.(B)Danger of upending the tractor.(C)Danger of the object rolling or sliding downthe loader boom onto the operator.

A If you must perform the above work, protectyourself by :(A)Not lifting the load higher than necessary toclear the ground when moving.(B)Adding rear ballast to the tractor tocompensate for the load.(C)Not lifting large objects with equipment thatdoes not have an anti-rollback device.(D)Moving slowly and carefully.(E)Avoiding rough terrain.(F)Keeping transport distance as short aspossible and carry the load as low as possibleduring transport.

VALVE LOCK

To avoid injury from crushing:A Do not utilize the valve lock for machine

maintenance or repair.A The valve lock is to prevent accidental

actuation when implement is not in use orduring transport.

The control valve is equipped with a valve lock feature.The control valve is locked in the neutral position.The lock is not intended and will not prevent a leak downof the implement during the period of storage.

BStandard valve

(1) Lock lever (A) "Lock"(B) "Unlock"

15OPERATING THE LOADER

FRONT GUARD

To avoid personal injury or machine damage:A Do not open nor close the hood while the upper

front guard is closed. A Be sure to keep the front guard closed (back at

its locked position) when operating the tractoror the loader.

A Before moving the tractor or the front loader, makesure the front guards are tightly locked.

C How to open the front guard1. Lower the boom to the ground with the bucket in level

position.2. Pull the front guard lever and open the front guard.

A Lower the front loader to the ground before openingthe front guard.

A Do not raise the boom while the upper front guard isopened.

BUCKET LEVEL INDICATOR (if equipped)Depending on the front attachment, loosen the indicatorrod lock bolt and readjust the indicator rod length.

(1) Front guard (A) “Open”(B) “Closed (Locked)”

(1) Front guard lever (A) "Lock position"(B) "Unlock position"

(1) Front guard lever(2) Front guard

(A) "Unlock"(B) "Open"

(1) Bolt(2) Indicator rod(3) Guide, Indicator rod

OPERATING THE LOADER16

ATTACHING ATTACHMENTS (if equipped)This quick attach coupler is designed to be used withKubota attachments. Non-Kubota attachments, if used,must comply with ISO 24410, first edition 2005-04-15.This quick attach coupler allows the operator to changeeasily without the use of tools.

To avoid serious personal injury or death:A Use of a non-Kubota attachment that does not

comply with ISO 24410 or the improperpositioning of handle(s) or non-protrusion ofpin(s) may result in detachment of theattachment or deformation, causing loss ofperformance, personal injury or death.

A Attachments should be located on a flat, firm surfacewhen attaching and detaching them from the quickattach coupler.

1. To mount an attachment, pull the handles of the quickattach coupler latching pins to the unlatched position.The quick attach coupler handles must be all the wayup to ensure that the latching pins are fully retracted.

2. Position the tractor squarely in front of the attachmentand tilt the quick attach coupler forward with the bucketcylinders.

3. Ease the quick attach coupler mounting plate into thesaddle of the attachment.

4. Roll the quick attach coupler back using the bucketcylinders and raise the boom slightly. The back of theattachment should rest against the front of the quickattach coupler mounting plate and the weight of theattachment should be supported by the loader.

To avoid serious injury or machine damage:A Raise the boom only enough to latch the

attachment.The attachment could swing off the quickattach coupler.

5. When the attachment is properly seated in the saddleand against the front of the quick attach couplermounting plate, turn off the engine and set the parkingbrake. Push the quick attach coupler handles to thefully latched position. Verify both latching pins arecompletely engaged in the base of the attachment.

(1) Quick attach coupler

(1) Quick attach coupler

(1) Quick attach coupler handle

17OPERATING THE LOADER

To avoid serious personal injury or death:A The following engagement points are critical.

1) The lock pins of the quick attach coupler have to protrude into and through the pin slots of the attachment on both sides. It is critical that the pins are in good condition and without visible signs of wear or damage and that the operator align the loader quick attach coupler with the attachment to allow the pins to go through the pin slots.2) Both handles have to be pushed down until the handles contact the ear plates near the points where the pin bolt goes through the handle (A).3) Do not operate the tractor or attachment unless all of the above conditions are met.

6. Visually verify when pushing the quick attach couplerhandles into locked position that the latch pins rotatecompletely and are located underneath the stop of thequick attach coupler.

7. When attaching different attachments visually inspectfor broken or damaged pins. If broken or damagedpins are found, replace before using. Use of brokenpins may result in attachment detachment ordeformation, causing loss of performance, personalinjury or death.

8. You are now ready to use the attached attachment. Allcompatible attachments attach and detach using thesame method.

To avoid serious injury or machine damage:A Never operate or transport attachments which are

not attached completely.A Always replace damaged hardware immediately.

DETACHING ATTACHMENTS1. Detaching attachments is done in the reverse of

attaching attachments. The procedure is below.2. Lower the attachment to ground level with the

attachment slightly in the rolled back position. Stop theengine and set the parking brake.

3. Pull the quick attach coupler handles to the unlatchedposition to release the latching pins.

4. While sitting in the tractor operator's seat, start theengine and slowly move the loader control lever to the"DUMP" position until the attachment is pushed awayslightly from the quick attach coupler.

5. Lower the loader boom so that the quick attach couplermounting plate clears the attachment saddle.

6. Back away from the attachment slowly.7. If an attachment is not going to be attached to the

quick attach coupler immediately, push the handles ofthe quick attach coupler to the locked position toprevent damage to the handle assembly.

(1) Handle(2) Ear plate(3) Pin slot(4) Lock pin

(A) The handle contacts the ear plate at the points.

(1) Latch pins(2) Quick attach coupler stopper

OPERATING THE LOADER18

DISMOUNTING THE LOADER

To avoid machine damage or serious injury:A Remove loader from tractor only when an

approved loader bucket is attached.

Follow instructions provided in "REMOVING THELOADER" section in this operator's manual.

MAINTENANCE1. Attachments are secured to the quick attach coupler

with an over center latching system. It is important thatthese parts are kept clean, lubricated and free fromdebris.

2. Keep the latching pins and latching handles free fromdebris. Lubricate the latching pins weekly with grease.

3. Keep the latching handles tight. If the handles becomeloose, tighten the hex nut slightly to remove any playfrom the handles.

4. Clean the saddle, at the top of the attachment, and thelatching pin slots of any dirt and debris beforemounting an attachment to the quick attach coupler.

ATTACHMENTSBQuick attach bucket

-SQUARE 66'' WIDTH

1675mm (66in.)STRUCK CAPACITY

0.23cu.m. (8.1cu.ft.)

BBale spear

OVERALL HEIGHT 524mm (20.63in.)

OVERALL WIDTH 1149mm (45.24in.)

OVERALL LENGTH (INCLUDING MAIN SPEAR)1376mm (54.17in.)

USEABLE LENGTH OF MAIN SPEAR 1008mm (39.69in.)

USEABLE LENGTH OF SPEAR 2356mm (14.02in.)

MAXIMUM DIAMETER OF MAIN SPEAR51mm (2.00in.)

DIAMETER OF SPEAR 232mm (1 1/4in.)

WEIGHT OF IMPLEMENT74kg (163lbs)

19OPERATING THE LOADER

BPallet fork

ASSEMBLE PALLET FORK1. Install the fork to the middle of the frame.

(fit the lower hook of the fork to the center notch of theframe)

2. Slide the fork to the desired position.

3. Push the lock lever and slide the fork slightly until thelock pin engages with one of the notches to lock thefork.

4. The other fork can be installed using the sameprocedures.

LOADER MODEL RATED CAPACITY

LA525 322 kg (710 lbs.)

(1) Fork (36")

(1) Fork (36")

(1) Lock lever

20 MAINTENANCE

MAINTENANCE

To avoid serious injury:A Be sure to check and service the tractor on a

flat surface with the bucket on the ground,engine shut off, the key removed and theparking brake on.

LUBRICATION1. Lubricate all grease fittings every 10 hours of

operation. Also, lubricate joints of control lever linkageevery 10 hours. High quality grease designating"extreme pressure" and containing Molybdenumdisulfide is recommended. This grease may specify"Moly EP" on its label.

2. Daily before operation, check the tractor hydraulic fluidlevel. If low, add as described in the tractor's operator'smanual. Also change the filter element and thehydraulic fluid as recommended in the tractor'soperator's manual.

RE-TIGHTENING OF HARDWAREAfter 20 to 30 hours of initial loader operation, re-tightenall mounting bolts and nuts to the required torque value asfollows.

Sequence Location Bolt/NutRequired

Torque N-m(kgf-m, ft-lbs)

1 Main frames M16 bolts 226 (23, 166)

21MAINTENANCE

DAILY CHECKS1. Check all hardware daily before operation.

Tighten hardware to torque values as specified in the"Installation Instructions" and "Tightening TorqueChart".

2. With the engine off and the bucket on the ground,inspect all hoses for cuts or wear. Check for signs ofleaks and make sure all fittings are tight.

To avoid serious personal injury:A Escaping hydraulic fluid under pressure can

have sufficient force to penetrate skin, causingserious personal injury. Before disconnectinglines, be sure to relieve all pressure.Before applying pressure to the system, besure all connections are tight and that lines,tubes, and hoses are not damaged. Fluidescaping from a very small hole can be almostinvisible. Use a piece of cardboard or wood,rather than your hands, to search forsuspected leaks.

If injured by escaping fluid, see a doctor atonce. Serious infection or allergic reaction willdevelop if proper medical treatment is notadministered immediately.

A When removing the engine side covers, becareful not to touch hot loader cylinders.Allow all surfaces to cool before performingmaintenance.

A Before servicing the loader or the tractor, besure to place the loader boom in contact withthe ground. If the loader boom must be raisedduring service or maintenance, support theboom as shown in the figure.

EVERY 50 HOURSBChecking main frame bolt torque

To avoid personal injury:A Never operate front loader with a loose main

frame.A Any time bolts and nuts are loosened, retighten

to specified torque.A Check all bolts and nuts frequently and keep

them tight.

Check main frame bolts regularly especially when new. Ifthey are loose, tighten them as follows.

(1) Hydraulic line(2) Cardboard(3) Magnifying glass

(1) Tightening torque : 226 N-m (23 kgf-m, 166 ft-lbs)

22 MAINTENANCE

BGeneral torque specification

American standard screws, bolts and nuts with UNC or UNF threads Metric cap screws

SAE grade No. SAE GR.5 SAE GR.8 property class 8.8 Approx. SAE GR 5

1/4(N-m)

(kgf-m)(ft-lbs)

11.7 to 15.81.19 to 1.61 8.6 to 11.6

16.3 to 19.81.66 to 2.0212.0 to 14.6

M6(N-m)

(kgf-m)(ft-lbs)

9.8 to 11.21.0 to 1.17.2 to 8.3

5/16(N-m)

(kgf-m)(ft-lbs)

23.1 to 27.82.35 to 2.8317.0 to 20.5

32.5 to 39.33.31 to 4.0124.0 to 29.0

M8(N-m)

(kgf-m)(ft-lbs)

23.6 to 27.42.4 to 2.8

17.4 to 20.2

3/8(N-m)

(kgf-m)(ft-lbs)

47.5 to 57.04.84 to 5.8135.0 to 42.0

61.0 to 73.26.22 to 7.4645.0 to 54.0

M10(N-m)

(kgf-m)(ft-lbs)

48.1 to 55.84.9 to 5.7

35.5 to 41.2

1/2(N-m)

(kgf-m)(ft-lbs)

108.5 to 130.211.06 to 13.28

80.0 to 96.0

149.2 to 179.015.21 to 18.25110.0 to 132.0

M12(N-m)

(kgf-m)(ft-lbs)

77.5 to 90.17.9 to 9.2

57.2 to 66.5

9/16(N-m)

(kgf-m)(ft-lbs)

149.2 to 179.015.21 to 18.25110.0 to 132.0

217.0 to 260.422.13 to 26.55160.0 to 192.0

M14(N-m)

(kgf-m)(ft-lbs)

124 to 14712.6 to 15.0

91.5 to 108.4

5/8(N-m)

(kgf-m)(ft-lbs)

203.4 to 244.120.74 to 24.89150.0 to 180.0

298.3 to 358.030.42 to 36.51220.0 to 264.0

M16(N-m)

(kgf-m)(ft-lbs)

196 to 22520.0 to 23.0145 to 166

M18(N-m)

(kgf-m)(ft-lbs)

275 to 31828.0 to 32.5203 to 235

M20(N-m)

(kgf-m)(ft-lbs)

368 to 43137.6 to 44.0272 to 318

23REMOVING THE LOADER

REMOVING THE LOADER

To avoid serious injury:A Make sure an approved bucket is attached

before removing the loader from the tractor.A For removing the loader, choose flat and hard

ground, preferably concrete.A If the ground surface is soft, place suitable

planks on the ground for the bucket andstands.

A Before starting the engine or using thehydraulic control valve, always sit in theoperator's seat.

A Make sure the bucket and stands are at groundlevel.

1. Raise the boom until the stands can be rotated.2. Stop the engine.3. Remove the spring pins holding the stands to the

boom.4. Slide the stands outward and rotate them until the hole

in the stand and pin on the boom are aligned. Thenslide the stands inward and insert the spring pin asshown.

5. Start the engine.6. Dump the bucket approximately 20 degrees.7. Lower the boom and raise the front wheels slightly.

A Lift the front wheels with the bucket. Do not attempt tolift them with the stands.

8. Stop the engine.9. Remove the mounting pins from the loader main frame

and hold them on the side frames.10.Start the engine and run at idle. Slowly move the

loader control lever to rollback position to raise theloader side frames up and out of the receivers of themain frames as shown.

11.Stop the engine.12.Slowly release all hydraulic pressure by moving the

hydraulic control lever in all directions.13.Disconnect the 4 hoses with quick couplers at the

control valve and place them to the hose guide asshown.

(1) Stand(2) Spring pin

(1) Stand

(1) Loader control lever

REMOVING THE LOADER24

14.Place the protective caps and plugs on the quickcoupler ends.

15.Start the engine and slowly back the tractor away fromthe loader.

(1) Hose(2) Hose guide

(1) Protective caps

25STORING THE LOADER

STORING THE LOADER

1. Store the loader in a clean dry place.2. Make sure the loader is properly supported.3. Attach the protective plugs and caps to the couplers to

protect them from dust.

4. Check all hydraulic hoses and connections. Repair orreplace them if necessary.

5. Repair or replace any worn, damaged or missingparts.

6. Lubricate loader as described in "LUBRICATION" inMaintenance section.

7. Apply a coat of grease to all exposed cylinder rods andmounting pins to prevent rust.

8. Repaint worn or scratched parts.

26 REINSTALLING THE LOADER

REINSTALLING THE LOADER

To avoid serious injury:A Before starting the engine and operating the

control valve, always sit in the operator's seat.

1. Slowly drive the tractor between the loader sideframes until the rear portion of both side framestouches the main frames as shown.

2. Stop the engine.3. Connect the four hoses with couplers to the nipples on

the control valve as indicated with color marks. Thenconnect the protective caps and plugs to each other.

A Adjust the route of the hoses as shown.

4. Start the engine and run at idle.5. Slowly move the loader control lever to dump position

to lower the side frames into the main frames andengage the bosses of the side frames to the guideplates of the main frames. Then lift the weight off thefront wheels with the loader - do not lift the wheels offthe ground.

A Do not attempt to lift the front wheels with the stands.

6. Stop the engine. Reinstall the mounting pins and insertthe slide bar of the mounting pins to the hole of theside frame.

7. Start the engine.8. Raise the boom until the stands can be rotated.9. Stop the engine.

(1) Side frame(2) Main frame

(1) Hoses

(1) Hoses(2) Hose guide

(1) Loader control lever

27REINSTALLING THE LOADER

10.Store the stands to their original positions and securethem with the spring pins as shown.

11.Start the engine.12.Lower the boom and level the bucket.

(1) Stand(2) Spring pin

KUBOTA Corporation is ...Since its inception in 1890, KUBOTA Corporation has grown to rankas one of the major firms in Japan.

To achieve this status, the company has through the yearsdiversified the range of its products and services to a remarkableextent. Nineteen plants and 16,000 employees produce over 1,000different items, large and small.

All these products and all the services which accompany them,however, are unified by one central commitment. KUBOTAmakes products which, taken on a national scale, are basicnecessities. Products which are indispensable. Products whichare intended to help individuals and nations fulfill the potentialinherent in their environment. KUBOTA is the Basic NecessitiesGiant.

This potential includes water supply, food from the soil and from thesea, industrial development, architecture and construction, andtransportation.

Thousands of people depend on KUBOTA’s know-how, technology,experience and customer service. You too can depend onKUBOTA.