THIS IS A MANUAL PRODUCED BY JENSALES INC. WITHOUT THE AUTHORIZATION OF

KUBOTA OR IT’S SUCCESSORS. KUBOTA AND IT’S SUCCESSORS

ARE NOT RESPONSIBLE FOR THE QUALITY OR ACCURACY OF THIS MANUAL.

TRADE MARKS AND TRADE NAMES CONTAINED AND USED HEREIN ARE THOSE OF OTHERS,

AND ARE USED HERE IN A DESCRIPTIVE SENSE TO REFER TO THE PRODUCTS OF OTHERS.

Service Manual

Servic

e M

an

ual

L3350, L3750,

L4150, & L4150-N

Volume 1 of 2

KU-S-L3350+

WORKSHOP MANUAL TRACTOR

L3350·L3750 L4150·L4150-N

SPECIFICATIONS L3350DT L3750(DT) L4150(DT) WSM, 703214

SPECIFICATION

Model L3350(4WO) L3750 (2WO) L3750 (4WO) L4150 (2WO) I L4150(4WO)

Maximum P.T.O. power 23.9 kW (32 HP)· 26.8 kW (36 HP)· 29.8 kW (40 HP)·

Engine gross ppwer 26.8 kW (36 HP)· 33.6 kW (45 HP)· 37.3 kW (50 HP)·

Model KUBOTA V1902·DI·A KUBOTA F2302·01·L KUBOTA F2302·DI

Type Vertical, water-cooled, 4 cycle diesel engine

Number of cylinders 4 I 5

Total displacement 1861 cm' (113.6 cu.in.) I 2326 cm' (141.9 cu.in.)

Bore and stroke B5 x B2 mm (3.3 x 3.2 in.)

Rated revolution 43.3 rls (2600 rpm) 41.7 rls (2500 rpm) 43.3 rls (2600 rpm)

Maximum torque (Net)· 123.4N .m( 12.5Bkgf·m,91.0ft·lbs)/1 BOOrpm 144.6N.m( 14. 7kgf·m, 106.3ft-lbs)/1400rmp 154.9N .m( 15.8kgf·m,114.3ft·lb.)/1600rpm

Combustion system Direct injection

Fuel injection pump Bosch K type mini pump Bosch K type mini pump (NP·PFR5K075/2NP1) (NP·PFR4K075/2NP6)

Governor Centrifugal ball mechanical governor

Direction of rotation Counter-clockwise (Viewed from flywheel side)

Injection nozzle 4 hole type (Stanadyne pencil nozzle) Engine

Injection timing 0.31 rad. (18°) before T.O.C.

Injection order 1·3-4·2 1·3·5-4·2

Injection pressure 22.75 MPa, 232 kgf/cm' , 3300 psi 20.0 MPa, 204 kgf/cm' , 2902 psi From engine serial No. 31930; 22.8 MPa, 232 kgf/cm', 3300 psi

Compression ratio 18

Lubrication system Forced lubrication by pump

Cooling system Pressurized radiator, Forced circulation with water pump

Starting system Electric starting with cell starter (12V, 1.4 kW)

Battery 12V.110 AH (heavy duty 160 AH;optional)

Alternator 12V,420W

Fuel Diesel fuel No. 1·0 (below _10°C (15°F)), No. 2·0 (above -10°C (15°F))

(ASTM0975)

Lubrication oil MIL·L46152 or MI L·L.2104C, quality better than CC class (API)

Weight (I?ry) 207 kg (456 Ibs.) 268.6 kg (592.2 Ibs.) (Including radiator, air cleaner and muffled

Fuel tank 58Q (15.3 U.S.gals., 12.8 Imp.gals.)

Engine crankcase 7.5Q (7.9 U.S.qt •. , 6.6 Imp.qt •. ) 9Q (9.5 U.S.qt •. , 7.9 Imp.qts.)

Engine coolant 7.0Q (7.4 U.S.qts., 6.2 Imp.qts.) 7.6Q (8.0 U.S.qts., 6.7 Imp. qt •. 1

Capacitics Transmission case 43Q (45.5 U.S.qts., 37.8 Imp.qts.)

Power steering tank 2.5Q (2.6 U.S.qt •. , 2.2 Imp.qts.) 1.5Q (1.6 U.S.qt •. , 1.32 Imp.qts.)

Front axle diff. case (4WD) 5.5Q (5.8 U.S.qt •. , 4.84 Imp.qts.)

Front axle gear case (4WD) 2.7Q (2.9 U.S.qt •. , 2.38 Imp.qts.) each 3.1Q (3.3 U.S.qts., 2.73 Imp.qt •. 1 each

Overall length 3485 mm (137.2 in.)

Overall width 15110 mm (62.2 in.) 16110 mm (66.1 in.) 1720 mm(67.7 in.)

Height to top of steering wheel 1515 mm (59.6 in.) 1565 mm (61.6 inJ 15110 mm (62.2 in. I

Wheel base 1845 mm (72.6 in.) 1940 mm (76.4 in.)

Dimensions Min. ground clearance 2110 mm (11.0 in.) 365 mm (14.4 in.) 305 mm (12 inJ 365 mm (14.4 in.)

Crop clearance 325 mm (12.8 in.) 435 mm (17.1 in.) 375 mm (12 in.) 435mm(17.1in.) 1 420mm(16.5in.)

Front 1265 mm (SO in.) 1220 mm (48 in.) to 1320 mm (52 in.) 1220 mm (48 inJ to I 1420 (56') 1820 mm (71.6 inJ 1820 mm (71.6 in.) mm '".

Tread 1220 mm (48 in.). 1320 mm (52 in.),

Rear 1420 mm (55 in.), 1520 mm (60 in.), 1320 mm (52 in.). 1420 mm (56 in.), 1520 mm (60 in.I, 1620 mm (64 in.).

1620 mm (64 in.). 1720 mm (68 inJ 1725 mm (68 in.), 1825 mm (72 in.). 1930 mm (76 in.1

Weight 1710 kg (3770 Ibs.) 1650 kg (3640 Ibs.) 1750 kg (3860 IbsJ 1700 kg (3750 lb •. ) 11850 kg (4080 Ibs.)

Front tires 8.0-16 6.50-16 9.5-16 I 6.5-16 I 9.5-20 Tire size (Std.)

13.6-24 I Rear tires 13.6-28 14.9-28

Clutch Dry single plate or two plates

Travelling Steering Ball screw type manual steering or integrated type power steering (Optional)

system T ransm ission 8 forward and 8 reverse speeds, partially synchronized (hydraulic shuttle transmission: optional)

Brake I Travelling Wet disc type

Parking Connected with the travelling brake

Differential Bevel gears

Hydraulic control system Position and draft control

Hydraulic . (fOr three point ) 35Q/min (9.3 GPM) 34Q/min (8.9 GPM) 35Q/min (9.3 GPM) system

Pump-up capacity hydraulic system

Three point hitch Category I

Maximum lifting force 1200 kg (2650 Ibs.) 24 in. behind lower link end

P.T.O. shaft Transmission case rear (rear P.T.OJ SAE 1-3/86 splines P.T.D. 9 r/. (540 rpm) at 37.4 rls (2243 rpm) engine rpm

P.T.O. speed 12.5 rls (750 rpm) at 39.9 rls (2391 rpm) engine rpm

Min. turning 2.7 m (8.9 ft.) 2.9 m (9.5 ft.) I 2.7 m (8.9 fU 1 3.0 m (9.8 ft.)

Traction system Swing drawbar

• NOTE: * Manufacturer's enstimate .

M MECHANISM

CONTENTS

iii FEATURES--------M.F ~ CLUTCH M.2

D ENGINE M.1 [1] DRY TYPE, SINGLE PLATE

CLUTCH ........................ M.2-2 [1] GENERAL

(1) Sectional View ................. M.l-l [2] DRY TYPE, DUAL STAGE

CLUTCH ......................... M.2-3 (2) F eatu res . . . . . . . . . . . . . . . . . . . . . . M. 1-3

[2] ENGINE BODY D TRANSMISSION M.3 (1) Cylinder Block ................. M.1-4 [1] SHUTTLE SHIFT SECTION ......... M.3-3 (2) Cylinder Head ................. M.1-4 [1]-1 MANUAL SHUTTLE SHIFT ...... M.3-3 (3) Crankshaft and Bearings .......... M.1-5 [1 ]-2 HYDRAULIC SHUTTLE (4) Piston ........................ M.1-5 SHIFT ........................ M.3-4 (5) Piston Rings ................... M.1-6 (1) Flow Priority Valve .............. M.3-5 (6) Connecting Rod ................ M.1-6 (2) Shuttle Control Valve and (7) Camshaft ..................... M.1-6 Hydraul.ic Clutches .............. M.3-7 (8) Fuel Camshaft ................. M.1-7 [2] MAIN GEAR SHIFT SECTION ...... M.3-12 (9) Rocker Arm Assembly ........... M.1-7

(10) I nlet and Exhaust Valves ......... M.1-7 (11) Valve Timing .................. M.1-8

[3] HI-LO GEAR SHIFT SECTION ...... M.3-14 [4] FRONT WHEEL DRIVE SECTION

[4WD TYPE] ., •................. M.3-15 (12) Flywheel ..................... M.1-8 (13) Air Cleaner .................... M.1-9 (14) Muffler ....................... M. 1-9

[5] PTO GEAR SHIFT SECTION ....... M.3-16

[1 REAR AXLE M.4 [3] LUBRICATING SYSTEM [1] DIFFERENTIAL GEAR ............ M.4-2

(1) Flow of Fuel ................. M.l-l0 [2] FINAL REDUCTION SYSTEM ...... M.4-4

(2) Oil Pump .................... M.l-l0 (3) Oil Filter and Relief Valve ....... M.l-ll

H BRAKES M.5

(4) Oil Pressure Switch ............. M.l-l1 [;1 FRONT AXLE M.6 [4] COOLING SYSTEM [1] FRONT WHEEL ALIGNMENT ....... M.6-1

(1) Flow of Cooling Water .......... M.1-12 [2] STRUCTURE .•.................. M.6-3 (2) Water Pump .................. M.1-12 (3) Thermostat ................... M.1-13 (4) Radiator ..................... M.1-13 (5) Radiator Cap ................. M.1-14

[5] FUEL SYSTEM (1) Flow of Lubricating Oil ......... M.1-15 (2) Fuel Filter .................•. M.1-15 (3) Fuel Transfer Pump ............ M.1-16 (4) Fule I njection Pump ............ M.1-16 (5) Fuel I njection Nozzle ........... M.1-19 (6) Governor .................... M.1-19

fl STEERING M.7 [1] STEERING LINKAGE ............. M.7-1 [2] POWER STEER ING HYDRAULIC

CiRCUiT ........................ M.7-2 [3] POWER STEERING SYSTEM

HYDRAULIC PUMP ............... M.7-2 [4] POWER STEERING

(1) Power Steering ............ , .... M.7-4 (2) Oil Flow ..................... , M.7-7 (3) Manual Operation ............... M.7-9 (4) Relief Valve ................... M.7-9

[5] TILT STEERING WHEEL .......... M.7-10

L3350DT L37501DT) L41501DT) WSM, 703214

C042F047

(A)

C042 F048 C042 F049

2

CD --" -

C042 F050

1 ENGINE

(3) Thermostat The thermostat is wax pellet type, which controls the

flow of the cooling water to the radiator to keep the proper tem peratu re.

The case has a seat (1) and the pellet has a valve (2). The spindle attached to the case is inserted into the synthetic rubbllr in the pellet. The pellet is charged with wax.

(A) At low temperature (lower than B2°C (1BOoF)) The valve (2) is seated by the spring (7) and the cooling

water circulates in the engine through the water return pipe but does not enter the radiator.

(B) At high temperature (higher than B2°C (1BO°F)) As the water temperature rises, the wax in the pellet (3)

turns liquid and expands, repelling the spindle, which causes the pellet to lower. The valve (2) opens to send the cooling water to the rad iator .

(1 ) Seat (6) Wax (solid) (2) Valve (7) Spring (3) Pellet (8) Leak Hole (4) Spindle (9) Wax (liquid) (5) Synthetic Rubber

(4) Radiator The radiator core consists of water carrying tubes (2)

with fins (3) at a right angle to it. The water in the radiator is cooled by the air flowing

through between the tube wall and the fin. The louverless corrugated fins are light in weight, high in

heat exchange ratio and less in clogging.

(1 )

(2) (3)

(4)

(5)

Cooling Air Tube Fin Louverless Corrugated Fin Louvered Corrugated Fin

M.1-13

L3750(DT) WSM 103211 L4150(DT) ,

(1) Three Point Hydraulic System Pump

(1) Power Steering System Hydraulic Pump

(2) Three Point Hydraulic System Pump

0321 F067

(2) Oil Filter

0321F068

8 THREE POINT HYDRAULIC SYSTEM

The three point hydraulic system pump pressure-feeds

the oil drawn from the transmission case through the oil fil­

ter to the control valve.

This hydraulic pump is a pressure loading type geal" pump

with high volumetic efficiency. The hydraulic pump is

driven by the engine fuel camshaft.

(Reference) • For details of the hydraulic pump operation, see page

M.7-3.

• Approximation pump discharge per revol ution;

With hydraulic shuttle type : 19cc/rev (1.159 cu.in.!rev)

With mechanical shuttle type : 16cc/rev (0.976 cu.in/rev)

(1) Cover (2) Housing

(3) Driven Gear (4) Flange (5) Key (6) a-ring (7) Seal Element

(S) Backup Element

(9) Bushing

(10) Drive Gear (11) Bushing

(12) Oil Seal

The oil filter provided in the pump suction line is located

in front of the brake case at the right side of the transmission

case.

The wire mesh-type element (3) ensures a filtration degree

of 105,um (0.004 in.).

(1) Transmission Case

(2) Case

(3) Element

(4) Suction Pipe

A: To Hydraulic Pump

B: From Transmission

Case

M.S-3

CONTENTS

[1] TRACTOR IDENTIFICATION . ....................... S.G-1 [2] GENERAL PRECAUTION ........................... S.G-2 [3] LUBRICANTS . .................................... S.G-3 [4] TIGHTENING TORQUES

(GENERAL USE SCREWS, BOLTS AND NUTS) . ......... S.G-4 [5] MAINTENANCE CHECK LIST . ....................... S.G-5 [6] CHECK AND MAINTENANCE . ....................... S.G-7 [7] SPECIAL TOOLS

[7) -1 SPECIAL TOOLS FOR ENGINE .................... , S.G-24 [7]-2 SPECIAL TOOLS FOR TRACTOR .......•..... , ..... S.G-32

GENERAL

o l 0321F182

@

0321F184

@

(Reference)

o

Kubota Scale Inhibitor No.11

• The Kubota Scale Inhibitor No.11 or its equivalent, prevents scale formation in the coolant. Scale which builds up in either hard or soft water sharply reduces cool­ing efficiency.

S.G-18

23) Changing Power Steering Oil (Every 400 Hours)

A CAUTION

L3750(DT) L4150( DT) WSM, 703211

• Before changing the power steering oil, be sure to stop the engine.

1. Disconnect the external pipe joint and drain the oil from line.

2. Fill new oil through the filling port.

3. Start the engine, and remove the plug on the power steering oil tank, then turn the steering wheel slowly in both directions all the way alternately a few times, and stop the engine. Check that the oil level lies between the two notches on the dipstick. If not, replenish the oil.

• IMPORTANT • Be sure to use the recommended oil or equivalent.

Refer to "LUBRICANTS" (See page S.G-3)

24) Cleaning Engine Cooling System (Every 500 Hours)

A CAUTION

• Never remove the radiator cap until coolant temperature is below its boiling point. Then loosen cap slightly to the stop to relieve any excess pressure before removing cap completely.

1. To clean the engine cooling system, Kubota Scale Inhibi­tor No.20, or its equivalent, is recommended to effective­ly wash away scale build-up .

• NOTE • When adding an anti-freeze solution or changing from

water containing anti-freeze to pure, be sure to clean the engine cooling system.

• The scale inhibitor is effective for 3 months, so a com­plete change of coolant must be done every 3 months.

• Do not use a scale inhibitor and an anti-freeze at the same time. This may cause sludge to form, adversely affecting the engine parts.

CONTENTS

TIGHTENING TORQUES ............ S.S-1

DISASSEMBLING AND ASSEMBLING ...................... S.S-2

[1] FRONT AXLE [1]-1 REMOVING BUMPER AND TIE ROD. S.S-2 [1]-2 SEPARATING FRONT AXLE ....... S.S-2

[2] ENGINE AND FRONT AXLE [2] -1 DISCONNECTING WI RING HARNESSES

AND HYDRAULIC PIPES .•........ S.S-4 [2] -2 SEPARATING ENGINE ........... S.S-5

[3] ENGINE [3] -1 REMOVING HOOD, BATTERY AND

RADIATOR .........•.......... S.S-6 [3]-2 DISCONNECTING WIRING HARNESSES

AND HYDRAULIC PIPES •........ S.S-7 [3] -3 REMOVING PANEL BOARD AND

PANEL HOOD •................. S.S-9 [3] -4 REMOVING STEERING GEAR BOX. S.S-11 [3]-5 REMOVING TIE ROD .•.••...•.. S.S-12 [3]-6 SEPARATING FRONT AXLE •..... S.S-12 [3] -7 REMOVING FRONT AXLE

BRACKET •....•••..••....•... S.S-12 [3]-8 SEPARATING ENGINE .......... S.S-12

[4] CLUTCH HOUSING [4] -1 DISCONNECTING WIRING HARNESSES

AND HYDRAULIC PIPES •..•....• S.S-13 [4] -2 SEPARATING ENGINE FROM

CLUTCH HOUSING ....••••.•.••. S.S-13 [4] -3 SEPARATING CLUTCH HOUSING .. S.S-13

[5] REAR AXLE CASE AND BRAKE CASE [5] -1 REMOVING THREE POINT HITCH •. S.S-14 [51-2 SEPARATING REAR AXLE CASE

AND BRAKE CASE ••.•••......• S.S-14

[6] FENDER [6]-1 DISCONNECTING WIRING HARNESSES

AND FUEL PIPES •............. S.S-16 [6]-2 SEPARATING FENDER ....... , .. S.S-16

[7] MAIN SPEED CHANGE CASE [7] -1 DISCONNECTING WIRING HARNESSES

AND FUE L PIPES. . . . . . . . . . . . .. S.S-18 [71-2 SEPARATING FENDER ..•....... S.S-18 [71-3 REMOVING STEPS, HYDRAULIC PIPES,

FUEL PIPES AND RODS ......... S.S-18 [71-4 SEPARATING MAIN SPEED

CHANGE CASE. . . . . . . . . . . . . . .. S.S-20

[8] HYDRAULIC CYLINDER BLOCK [81-1 DISCONNECTING WIRING HARNESSES

AND FUEL PIPES •............ , S.S-21 [8] -2 REMOVING THREE POINT HITCH .. S.S-21 [81-3 SEPARATING FENDER ........•. S.S-21 [8] -4 SEPARATING HYDRAULIC

CYLINDER BLOCK •..•..•.....• S.S-21

[9] TRANSMISSION CASE [9] -1 DISCONNECTING WIRING HARNESSES

AND.FUEL PIPES .•••.•...•.... S.S-22 [9] -2 REMOVING THREE POINT HITCH .. S.S-22 [9]-3 SEPARATING FENDER .•.•••.. " S.S-22 [9]-4 REMOVING STEPS, HYDRAULIC PIPES,

FUEL PIPES AND RODS .•....... S.S-22 [9]-5 SEPARATING TRANSMISSION

CASE. . . . . • . • . . . . . • • . . . . . . .. S.S-24

CONTENTS

TROUBLE-SHOOTING ... ........................... S.l-l

SERVICING SPECIFICATIONS . ......... , ........... S.l-4

[1] ENGINE BODY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. S.l-4 [2] LUBR ICA TI NG SYSTEM. . . . . . . . . . . . . . . . . . . . . . . . . . . .. S.1-9 [3] COOLING SYSTEM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. S.1-9

[4] FUEL SYSTEM . .................................. S.1-10

TIGHTENING TORQUES . .......................... S.l-ll

CHECKING, DISASSEMBLING AND SERVICING .. .. S.1-12

[1] EXTERNAL COMPONENTS CHECKING AND ADJUSTING ....•................. , ... S.1-13 DISASSEMBLING AND ASSEMBLING .............. , ...... S.1-13

[2] ENGINE BODY CHECKING AND ADJUSTING ..................•..... ,. S.1-15 DISASSEMBLING AND ASSEMBLING ...... , ........ , ... " S.1-17 (1) Cylinder Head and Valves. . . . . . . . . . . . . . . . . . . . . . . . . . .. S.1-17 (2) Timing Gears and Camshafts . . . . . . . . . . . . . . . . . . . . . . . .. S.1-20 (3) Connecting Rod and Piston. . . . . . . . . . . . . . . . . . . . . . . . . .. S.1-24 (4) Crankshaft ...........................•......... S.1-25

SERViCiNG •........••..••.....•.......••......... S.1-27 (1) Cylinder Head and Valves . • . . . . • . . • . . . . . . . . . . . . . . . .. S.1-27 (2) Timing Gears and Camshafts. . . . . . . • • . . . • . . . . . . . . . . . .. S.1-31 (3) Connecting Rod and Piston .•......•...•...••......... S.1-34 (4) Crankshaft. . . . . . . • . . . . • . . . . . . . . . . . . . . . . . . . . . . . .. S.1-36 (5) Cylinder Liner .....•.••••..••..............•... " S.1-41

[3] LUBRICATING SYSTEM CHECKING ........•....•....••••.....•.•..•.•..... S.1-42 DISASSEMBLING AND ASSEMBLING •••...•....•.•....... S.1-43 SERVICING ••..•....•...•..•..••.•....• , ••..•..... S.1-43

[4] COOLING SYSTEM CHECKING ............••••.......•......•......... S.1-44 DISASSEMBLING AND ASSEMBLING ..•.•.•.....•..••••.. S.1-45

[5] FUEL SYSTEM CHECKING AND ADJUSTING ...........••..•..• , .•.... S.1-47

CONTENTS

TROUBLE-SHOOTING ............................... S.2-1

SERVICING SPECI FICATIONS ....................... S.2-3

TIGHTENING TORQUES . ........................... S.2-5

CHECKING, DISASSEMBLING AND SERVICING ... .. S.2-6

[1] DRY TYPE SINGLE PLATE CLUTCH CHECKING AND ADJUSTING ...........•....•.....••. " S.2-6

DISASSEMBLING AND ASSEMBLING. . . . • . . • . . . . • . . . . . . .. S.2-7

SERVICING ...••...•....•.........•.......•...... " S.2-8 [2] DRY TYPE DUAL STAGE CLUTCH

CHECKING AND ADJUSTING .........•..•.•..........•. S.2-11 DISASSEMBLING AND ASSEMBLING ..•.••........•....•. S.2-14

SERVICING ••..•.....•..•.•...••.•......•.....•••.• S.2-16

CONTENTS

TROUBLE-SHOOTING .............................. S.3-1

SERVICING SPECiFiCATIONS ...................... S.3-2

TIGHTENING TORQUES .... ....................... S.3-4

CHECKING, DISASSEMBLING AND SERVICING . .... S.3-5 CHECKING AND ADJUSTING

[HYDRAULIC SHUTTLE TYPE] ....•..................••• S.3-5 [1] CLUTCH HOUSING

[MANUAL SHUTTLE TYPE] DISASSEMBLING AND ASSEMBLING .....................• S.3-7 [HYDRAULIC SHUTTLE TYPE] DISASSEMBLING AND ASSEMBLING .................... " S.3-9

(2) MAIN SPEED CHANGE CASE DISASSEMBLING AND ASSEMBLING ..................... S.3-14

(3) TRANSMISSION CASE CHECKING AND ADJUSTING ..................•....•.. S.3-15 DISASSEMBLING AND ASSEMBLING ............... " ..•. S.3-16

(4) SERVICING . ..................................... S.3-22 [HYDRAULIC SHUTTLE TYPE) .................... S.3-26

CONTENTS

TROUBLE-SHOOTING . ............................. S.4-1

SERVICING SPECiFiCATIONS ...................... S.4-1

TIGHTENING TORQUES .. ......................... S.4-2

DISASSEMBLING AND SERVICING . ................ S.4-3

[1] DIFFERENTIAL GEAR DISASSEMBLING AND ASSEMBLING ..................... S.4-4 SERVICING •....................................... S.4-5

[2] REAR AXLE CASE DISASSEMBLING AND ASSEMBLING ..................... S.4-6 SERVICING ........................................ S.4-7

CONTENTS

TROUBLE-SHOOTING . .............................. S.5-1

SERVICING SPECiFiCATIONS ....................... S.5-1

TIGHTENING TORQUES . ........................... S.5-1

CHECKING, DISASSEMBLING AND SERVICING . .... S.5-2 CHECKING AND ADJUSTING ........................... S.5-2 DISASSEMBLING AND ASSEMBLING ..................... S.5-3 SERVICING ............................. ; .......... S.5-5

CONTENTS

TROUBLE-SHOOTING .............................. S.6-1

SERVICING SPECiFiCATIONS ...................... S.6-2

TIGHTENING TORQUES ........................... S.6-6

CHECKING, DISASSEMBLING AND SERViCiNG .... S.6-7 CHECKING AND ADJUSTING .........•................. S.6-7

[2WD TYPE] DIASSEMBLING AND ASSEMBLING ....•....•....•.....•. S.6-9 SERVICING .......•..................... ; ..... , ... S.6-10

[4WD TYPE] DISASSEMBLING AND ASSEMBLING .•..•.......•....... S.6-11 SERVICING ......................•........••...... 8.6-20

CONTENTS

TROUBLE-SHOOTING . .............................. 5.7-1

SERVICING SPECIFICATIONS .. ..................... 5.7-3

TIGHTENING TORQUES . ........................... 5.7-4

CHECKING, DISASSEMBLING AND SERVICING . .... 5.7-5 CHECKING AND ADJUSTING .•............•.........••• 5.7-5

[1] POWER STEERING HYDRAULIC PUMP DISASSEMBLING AND ASSEMBLING .•••.•...........•.... 5.7-9 SERVICING •..•......•...•.............•.......•... 5.7-10

[2] POWER STEERING DISASSEMBLING AND ASSEMBLING ..•.............•.... 5.7-11 SERVICING ...••....•..•............•. " ..........•. 5.7-17

CONTENTS

TROUBLE-SHOOTING ............................... S.8-1

SERVICING SPECIFICATIONS ...................... S.8-2

TIGHTENING TORQUES ............................ S.8-4

CHECKING. DISASSEMBLING AND SERVICING ..... S.8-5

[1] HYDRAULIC COMPONENTS TEST CHECKING AND ADJUSTING ...•..•••••••.•.••.•..•••. S.8-5

[2] OIL FILTER DISASSEMBLING AND ASSEMBLING •.•.•..•.•......•••••. S.8-8

[3] THREE POINT HYDRAULIC PUMP DISASSEMBLING AND ASSEMBLING ..•..••..•...••......• S.8-8 SERVICING " •.••.••.•.•.•.•.....•..•....•....••.. S.8-10

[4] RELIEF VALVE DISASSEMBLING AND ASSEMBLING ••.....••....•.••.•.• S.8-11

[5] POSITION CONTROL VALVE DISASSEMBLING AND ASSEMBLING ••..•.....••..••..• ,. S.8-11

[6] DRAFT CONTROL VALVE DISASSEMBLING AND ASSEMBLING ..••••.•.•.•...•••.•. S.8-14

[7] CYLINDER SAFETY VALVE DISASSEMBLING AND ASSEMBLING •••.••••.....•.•••••. S.8-16 SERVICING •...••••••••.•.•..••••••••.•.•.••••••• " S.8-16

[8] HYDRAULIC CYLINDER DISASSEMBLING AND ASSEMBLING ••..••• , •• , •. , ...• '" S.8-17 SERVICING •••.••••••••••••••••.•.•• ' ••••••••••••••• S.8-19

[9] CONTROL LINKAGE [9] -1 POSITION CONTROL ••••••••••.•••••••••••••••••• S.8-21 CHECKING AND ADJUSTING •••••••••••••••••••••••••• S.8-21

[9] -2 DRAFT CONTROL. ••.••••••••••••••.•••••••••••• S.8-22 CHECKING AND ADJUSTING .•••••••••••.••.•••••••••• S.8-22

[10] AUXILIARY CONTROL VALVE DISASSEMBLING AND ASSEMBLING ••••••••••••••••••••• S.8-24

CONTENTS

TROUBLE-SHOOTING . ................ , ......... ' .. S.9-1

SERVICING SPECI FICATIONS ...................... S.9-5

CHECKING. DISASSEMBLING AND SERVICING . .... S.9-6

[1] BATTERY CHECKING ......................................... S.9-6

[2] STARTING SYSTEM CHECKING ...................................... " S.9-10 DISASSEMBLING AND ASSEMBLING ..................... S.9-15 SERVICING ....................................... S.9-17

[3] ENGINE KEYSWITCH SHUT-OFF SYSTEM CHECKING ........................................ S.9-19

[4] CHARGING SYSTEM CHECKING ......................................•. S.9-21 DISASSEMBLING AND ASSEMBLING ..................... S.9-27 SERVICING ....................................... S.9-28

[5] LIGHTING SYSTEM CHECKING ........................................ S.9-30

[6] EASY CHECKER CHECKING ........................................ S.9-35

[7] GAUGE CHECKING ...•.................................... S.9-43

[8] WIRING HARNESSES LAYOUT . .................... S.9-46

CONTENTS

GENERAL [1] SUITABLE TRACTOR ............................. LG-1 [2] LOADER SPECIFICATIONS WITH

KUBOTA L3350 4WD ............................ J.G-1 [3] BUCKET SPECIFICATIONS ......................... LG-1 [4] PERFORMANCE RATINGS (NO ROAD) .............. J.G-1 [5] OPERATING DIMENSIONS ......................... LG-2 [6] LOADER TERMINOLOGY .......................... J.G-3

MECHANISM [1] OIL FLOW ....................................... LG-4 [2] HYDRAULIC POWER TAKE OFF .................... LG-S [3] CONTROL VALVE ................................ LG-6 [4] BOOM CYLINDER AND BUCKET CyLINDER ........ LG-13 [5] QUICK COUPLER ................................ LG-14

SPECIFICATIONS

DIMENSION

MECHANISM

CONTENTS

o FEATURES .............................................................................. N.M-1

D TRANSMISSION ..................................................................... N.M-2

~ PTO CLUTCH .......................................................................... N.M-4

o ELECTRICAL SYSTEM ............................................................ N.M-8

~ OTHERS .................................................................................. N.M-9

SERVICING

rn GENERAL ................................................................................ N.S-1

o SEPARATION .......................................................................... N.S-8

~ PTO CLUTCH ........................................................................... N.S-11

MECHANISM

CONTENTS

o FEATURES-----------------N_M-1

D TRANSMISSION ---------------N_M-2

~ PTO CLUTCH ----------------N_M-4

o ELECTRICAL SYSTEM --------------N_M-8

[1] WIRING DIAGRAM ___________________________________________________________________________ N_M-8

~ OTHERS--------------------N_M-9

[1] TREAD ADJUSTMENT __________________ . ____ . ______ . ___ ._._ ...... ________ . _________________ N.M-9 (1) Front Wheel ______________ . ___ ._ ... ____________ ._. __ ,_ .. ___ . ______ . __________ . ___________ N.M-9 (2) Rear Wheel __ . ___________ . ________________ . __ . _____ . _______ . _____________________________ N.M-9

[2] SPECIFICATIONS OF IMPLEMENT LIMITATIONS ____ .. _____________________________ N_M-10

SERVICING

CONTENTS

~ GENERAL N.S-1

[1] TRACTOR IDENTIFiCATION......................................................................... N.S-1 [2] GENERAL PRECAUTION ............................ ................. ........... ...... ....... ........ N .5-1 [3] TROUBLESHOOTING ................................................................................... N.S-2 [4] SERVICING SPECIFICATIONS __ .. _ .... _............................................................. N.S-3 [5] TIGHTENING TORQUES .................... _......................................................... N.5-5 [6] MAINTENANCE ........................................................................................... N.S-6 [6]-1 LUBRICANTS ............................................................................................. N.S-6 [6J-2 MAINTENANCE CHECK LIST .................................................................... N.S-7 [7] SPECIAL TOOLS .......................................................................................... N.S-7

() SEPARATION ----------------- N.S-8

[1] SEPARATING MID CASE ..................................................................... _... N.S-8

~ PTO CLUTCH -~--------------- N.S-ll

[1] PTO CLUTCH HYDRAULIC PUMP ............. _ ....... _ ...................................... . CHECKING ... _ ............ __ ..... _ ...... _ ............. _ ................................... _ ................ . DISASSEMBLING AND ASSEMBLING ....... _._ ............................................ . SERVICING ..... _ ...... _ ................................................................................... .

[2] PTO ClUTCH VALVE ............................................................................... . CHECKING ................................. _ ............................................................. . DISASSEMBLING AND ASSEMBLING ............ _ ........................................ .

[3] PTO CLUTCH ASSEMBLy ........ ................................................................ . DISASSEMBLING AND ASSEMBLING .............. _.- .................................... . SERVICING ............................................................................................... .

[4] PTO BRAKE ................... -............ _ ............................ _ .. _ ............................ . DISASSEMBLING AND ASSEMBLING ..................................................... . SERVICING .............................................................. _ ....................... _ ........ .

N.S-11 N.S-11 N.S-13 N.S-15 N.S-16 N.S-16 N.S-17 N.S-18 N.S-18 N.S-21 N.S-23 N.S-23 N.S-23