Kubota L3008 Instruction manual

L3008,L3608
WORKSHOP MANUAL
TRACTOR
KiSC issued 06, 2009 A

TO THE READER
This Workshop Manual tells the servicing personnel about the mechanism, servicing and
maintenance of the L3008 and L3608. It contains 4 parts: "Information", "General", "Mechanism" and
"Servicing".
QInformation
This section contains information below.
• Safety First
• Safety Label
• Specification
• Dimension
QGeneral
This section contains information below.
• Engine Identification
• Model Identification
• General Precautions
• Maintenance Check List
• Check and Maintenance
• Special Tools
QMechanism
This section contains information on the structure and the function of the unit. Before you continue
with the subsequent sections, make sure that you read this section.
Refer to the latest version of Workshop Manual (Code No. 9Y021-01870 / 9Y021-18200) for the
diesel engine / tractor mechanism that this workshop manual does not include.
QServicing
This section contains information below.
• Troubleshooting
• Servicing Specifications
• Tightening Torques
• Checking, Disassembling and Servicing
All illustrations, photographs and specifications contained in this manual are of the newest
information available at the time of publication.
KUBOTA reserves the right to change all information at any time without notice.
Since this manual includes many models, information or illustrations and photographs can show
more than one model.
March, 2009
© KUBOTA Corporation 2009
KiSC issued 06, 2009 A
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I INFORMATION
KiSC issued 06, 2009 A
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CONTENTS
1. SAFETY FIRST .............................................................................................................................. I-1
2. SAFETY DECALS .......................................................................................................................... I-4
3. SPECIFICATIONS.......................................................................................................................... I-6
4. TRAVELING SPEEDS.................................................................................................................... I-7
5. DIMENSIONS ................................................................................................................................. I-8
INFORMATION
KiSC issued 06, 2009 A
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INFORMATION
L3008,L3608, WSM
I-1 (TH)
1. SAFETY FIRST
WSM000001INI0001US0
BEFORE YOU START SERVICE
• Read all instructions and safety instructions in this
manual and on your machine safety decals.
• Clean the work area and machine.
• Park the machine on a stable and level ground, and
set the parking brake.
• Lower the implement to the ground.
• Stop the engine, then remove the key.
• Disconnect the battery negative cable.
• Hang a "DO NOT OPERATE" tag in the operator
station.
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START SAFELY
• Do not do the procedures below when you start the
engine.
– short across starter terminals
– bypass the safety start switch
• Do not alter or remove any part of machine safety
system.
• Before you start the engine, make sure that all shift
levers are in neutral positions or in disengaged
positions.
• Do not start the engine when you stay on the ground.
Start the engine only from operator's seat.
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SAFETY FIRST
• This symbol, the industry's "Safety Alert Symbol", is used throughout this manual and on labels on the
machine itself to warn of the possibility of personal injury. Read these instructions carefully.
• It is essential that you read the instructions and safety regulations before you attempt to repair or use
this unit.
DANGER
• Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
• Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION
• Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate
injury.
IMPORTANT
• Indicates that equipment or property damage could result if instructions are not followed.
NOTE
• Gives helpful information.
KiSC issued 06, 2009 A
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INFORMATION
L3008,L3608, WSM
I-2 (TH)
OPERATE SAFELY
• Do not use the machine after you consume alcohol
or medication or when you are tired.
• Put on applicable clothing and safety equipment.
• Use applicable tools only. Do not use alternative
tools or parts.
• When 2 or more persons do servicing, make sure
that you do it safely.
• Do not operate below the machine that only a jack
holds. Always use a safety stand to hold the
machine.
• Do not touch the hot parts or parts that turn when the
engine operates.
• Do not remove the radiator cap when the engine
operates, or immediately after it stops. If not, hot
water can spout out from the radiator. Only remove
the radiator cap when it is at a sufficiently low
temperature to touch with bare hands. Slowly loosen
the cap to release the pressure before you remove it
fully.
• Released fluid (fuel or hydraulic oil) under pressure
can cause damage to the skin and cause serious
injury. Release the pressure before you disconnect
hydraulic or fuel lines. Tighten all connections before
you apply the pressure.
• Do not open a fuel system under high pressure.
The fluid under high pressure that stays in fuel lines
can cause serious injury. Do not disconnect or repair
the fuel lines, sensors, or any other components
between the fuel pump and injectors on engines with
a common rail fuel system under high pressure.
• Put on an applicable ear protective device (earmuffs
or earplugs) to prevent injury against loud noises.
• Be careful about electric shock. The engine
generates a high voltage of more than DC100 V in
the ECU and is applied to the injector.
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PREVENT A FIRE
• Fuel is very flammable and explosive under some
conditions. Do not smoke or let flames or sparks in
your work area.
• To prevent sparks from an accidental short circuit,
always disconnect the battery negative cable first
and connect it last.
• The battery gas can cause an explosion. Keep the
sparks and open flame away from the top of battery,
especially when you charge the battery.
• Make sure that you do not spill fuel on the engine.
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KiSC issued 06, 2009 A
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INFORMATION
L3008,L3608, WSM
I-3 (TH)
KEEP A GOOD AIRFLOW IN THE WORK AREA
• If the engine is in operation, make sure that the area
has good airflow. Do not operate the engine in a
closed area. The exhaust gas contains poisonous
carbon monoxide.
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DISCARD FLUIDS CORRECTLY
• Do not discard fluids on the ground, down the drain,
into a stream, pond, or lake. Obey related
environmental protection regulations when you
discard oil, fuel, coolant, electrolyte and other
dangerous waste.
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PREVENT ACID BURNS
• Keep electrolyte away from your eyes, hands and
clothing. Sulfuric acid in battery electrolyte is
poisonous and it can burn your skin and clothing and
cause blindness. If you spill electrolyte on yourself,
clean yourself with water, and get medical aid
immediately.
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PREPARE FOR EMERGENCIES
• Keep a first aid kit and fire extinguisher ready at all
times.
• Keep the emergency contact telephone numbers
near your telephone at all times.
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KiSC issued 06, 2009 A
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INFORMATION
L3008,L3608, WSM
I-4 (TH)
2. SAFETY DECALS
The following safety decals (pictorial safety labels) are installed on the machine. If a decal becomes
damaged, illegible or is not on the machine, replace it. The decal part number is listed in the parts list.
WSM000001INI0014US0
9Y1210284INI0001US0
KiSC issued 06, 2009 A
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INFORMATION
L3008,L3608, WSM
I-5 (TH)
9Y1210284INI0002US0
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INFORMATION
L3008,L3608, WSM
I-6 (TH)
3. SPECIFICATIONS
NOTE
• *Manufacturer's estimate. The company reserves the right to change the specifications without notice. 9Y1210284INI0003US0
Model L3008 L3608
4WD 4WD
PTO power* 19.5 kW (26.5 PS) 23.2 kW (31.5 PS)
Engine
Maker KUBOTA
Model D1503-M-DI D1703-M-DI
Type Direct injection, Vertical, Water-Cooled 4 cycle diesel
Number of cylinder 3
Bore and stroke 83 x 92.4 mm (3.3 x 3.6 in.) 87 x 92.4 mm (3.4 x 3.6 in.)
Total displacement 1.499 L (91.47 cu.in.) 1.647 L (100.5 cu.in.)
Engine gross power* 22.6 kW (30.7 PS) 26.5 kW (36.0 PS)
Engine net power* 21.6 kW (29.4 PS) 25.4 kW (24.5 PS)
Rated revolution 2700 min-1 (rpm)
Maximum torque 97.2 N·m (9.91 kgf·m, 71.7 lbf·ft) 111.0 N·m (11.32 kgf·m, 81.87 lbf·ft)
Battery capacity 75D26L, 12V 52Ah, AC : 123 min, CCA (−18 C°) : 490 A
Fuel Diesel fuel No.2-D
Capacities
Fuel tank 38.0 L (10.0 U.S.gals, 8.36 Imp.gals)
Engine crankcase (with filter) 5.7 L (6.0 U.S.qts, 5.0 Imp.qts)
Engine coolant 6.0 L (6.3 U.S.qts, 5.3 Imp.qts)
Transmission case 28.5 L (7.53 U.S.gals, 6.27 Imp.gals)
Dimensions
Overall length (without 3P) 2920 mm (115.0 in.)
Overall width 1430 mm (56.30 in.)
Overall height
(Top of steering wheel) 1495 mm (58.86 in.) 1520 mm (59.84 in.)
Wheel base 1610 mm (63.39 in.)
Min. ground clearance 330 mm (13.0 in.) 355 mm (14.0 in.)
Tread Front 1020 mm (40.16 in.) 1080 mm (42.52 in.)
Rear 1060 mm (41.73 in.) 1120 mm (44.09 in.)
Weight 1115 kg (2458 lbs)
Travelling
system
Tires Front 7 - 16 8 - 16
Rear 11.4 - 24 12.4 - 24
Clutch Dry type single stage
Steering Integral type power steering
Transmission Gear shift, 8 forward and 8 reverse
Brake Wet disk type
Min. turning radius
(with brake) 2.5 m (8.2 ft)
Hydraulic unit
Hydraulic control system Position control
Pump capacitt 23.9 L/min (6.31 U.S.gals/min, 5.26 Imp gals/min)
Three point hitch Category 1
Max. lift force
At lift points 906 kg (2000 lbs)
24 in. behind
lift points 651 kg (1440 lbs)
System pressure 16.2 MPa (165 kgf/cm2, 2350 psi)
PTO Rear PTO SAE 1-3/8, 6-splines
PTO /Engine speed 540 / 2430 min-1 (rpm), 750 / 2596 min-1 (rpm)
KiSC issued 06, 2009 A
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INFORMATION
L3008,L3608, WSM
I-7 (TH)
4. TRAVELING SPEEDS
QManual Transmission Type
(At rated engine rpm)
The company reserves the right to change the specifications without notice.
9Y1210284INI0004US0
Model L3008 L3608
Shuttle shift
lever
Range gear
shift lever
Main gear shift
lever km/h (mph) km/h (mph)
Forward
Low
1 1.7 (1.1) 1.8 (1.1)
2 2.3 (1.4) 2.4 (1.5)
3 4.3 (2.7) 4.6 (2.9)
4 5.7 (3.5) 6.0 (3.7)
High
1 6.2 (3.9) 6.5 (4.0)
2 7.9 (4.9) 8.4 (5.2)
3 15.2 (9.44) 16.1 (10.0)
419.7 (Max. 21.1)
(12.2 (Max. 13.1))
20.9 (Max. 22.4)
(13.0 (Max.13.9))
Reverse
Low
1 1.7 (1.1) 1.8 (1.1)
2 2.3 (1.4) 2.4 (1.5)
3 4.3 (2.7) 4.6 (2.9)
4 5.7 (3.5) 6.0 (3.7)
High
1 6.2 (3.9) 6.5 (4.0)
2 7.9 (4.9) 8.4 (5.2)
3 15.2 (9.44) 16.0 (9.94)
4 19.6 (12.2) 20.8 (12.9)
KiSC issued 06, 2009 A

INFORMATION
L3008,L3608, WSM
I-8 (TH)
5. DIMENSIONS
9Y1210284INI0005US0
KiSC issued 06, 2009 A

G GENERAL
KiSC issued 06, 2009 A

CONTENTS
1. TRACTOR IDENTIFICATION....................................................................................................... G-1
[1] MODEL NAME AND SERIAL NUMBERS .............................................................................. G-1
[2] E2 ENGINE ............................................................................................................................ G-3
[3] CYLINDER NUMBER ............................................................................................................. G-3
2. GENERAL PRECAUTIONS.......................................................................................................... G-4
3. HANDING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING ...................................... G-5
[1] WIRING .................................................................................................................................. G-5
[2] BATTERY ............................................................................................................................... G-7
[3] FUSE ...................................................................................................................................... G-7
[4] CONNECTOR ........................................................................................................................ G-7
[5] HANDLING OF CIRCUIT TESTER ........................................................................................ G-8
[6] COLOR OF WIRING ..............................................................................................................G-9
4. LUBRICANTS, FUEL AND COOLANT....................................................................................... G-10
5. TIGHTENING TORQUES........................................................................................................... G-12
[1] GENERAL USE SCREWS, BOLTS AND NUTS .................................................................. G-12
[2] STUD BOLTS ....................................................................................................................... G-12
[3] METRIC SCREWS, BOLTS AND NUTS .............................................................................. G-13
[4] AMERICAN STANDARD SCREWS, BOLTS AND NUTS WITH UNC OR UNF THREADS G-13
[5] PLUGS ................................................................................................................................. G-13
6. MAINTENANCE.......................................................................................................................... G-14
7. CHECK AND MAINTENANCE ................................................................................................... G-16
[1] DAILY CHECK...................................................................................................................... G-16
[2] CHECK POINTS OF INITIAL 50 HOURS ............................................................................ G-17
[3] CHECK POINTS OF EVERY 20 HOURS ............................................................................ G-20
[4] CHECK POINTS OF EVERY 50 HOURS ............................................................................ G-22
[5] CHECK POINTS OF EVERY 100 HOURS .......................................................................... G-23
[6] CHECK POINTS OF EVERY 200 HOURS .......................................................................... G-26
[7] CHECK POINTS OF EVERY 400 HOURS .......................................................................... G-29
[8] CHECK POINTS OF EVERY 600 HOURS .......................................................................... G-31
[9] CHECK POINTS OF EVERY 800 HOURS .......................................................................... G-31
[10]CHECK POINTS OF EVERY 1 YEAR.................................................................................. G-31
[11]CHECK POINTS OF 2 YEARS ............................................................................................ G-31
[12]OTHERS............................................................................................................................... G-34
8. SPECIAL TOOLS ....................................................................................................................... G-36
[1] SPECIAL TOOLS FOR ENGINE.......................................................................................... G-36
[2] SPECIAL TOOLS FOR TRACTOR ...................................................................................... G-41
9. TIRES ......................................................................................................................................... G-46
[1] TIRE PRESSURE................................................................................................................. G-46
[2] IMPLEMENT LIMITATIONS ................................................................................................. G-47
GENERAL
KiSC issued 06, 2009 A

GENERAL
L3008,L3608, WSM
G-1 (TH)
1. TRACTOR IDENTIFICATION
[1] MODEL NAME AND SERIAL NUMBERS
When contacting your local KUBOTA distributor, always specify
engine serial number, tractor serial number and hour meter reading.
9Y1210284GEG0001US0
(1) Tractor Identification Plate (2) Tractor Serial Number
KiSC issued 06, 2009 A

GENERAL
L3008,L3608, WSM
G-2 (TH)
Engine Serial Number
When contacting the manufacture, always specify your engine
model number and serial number.
The engine model and its serial number need to be identified
before the engine can be serviced or parts replaced.
QEngine Serial Number
The engine serial number is an identified number for the engine.
It is marked after the engine model number.
It indicates month and year of manufacture as follows.
Year of manufacture
Month of manufacture
e.g. D1803-3A0001
"3" indicates 2003 and "A" indicates January.
So, 3A indicates that the engine was manufactured on January,
2003.
9Y1210284GEG0002US0
Alphabet or
Number Year Alphabet or Number Year
1 2001 F 2015
2 2002 G 2016
3 2003 H 2017
4 2004 J 2018
5 2005 K 2019
6 2006 L 2020
7 2007 M 2021
8 2008 N 2022
9 2009 P 2023
A 2010 R 2024
B 2011 S 2025
C 2012 T 2026
D 2013 V 2027
E2014
Month Engine Lot Number
0001 ~ 9999 10000 ~
January A0001 ~ A9999 B0001 ~
February C0001 ~ C9999 D0001 ~
March E0001 ~ E9999 F0001 ~
April G0001 ~ G9999 H0001 ~
May J0001 ~ J9999 K0001 ~
June L0001 ~ L9999 M0001 ~
July N0001 ~ N9999 P0001 ~
August Q0001 ~ Q9999 R0001 ~
September S0001 ~ S9999 T0001 ~
October U0001 ~ U9999 V0001 ~
November W0001 ~ W9999 X0001 ~
December Y0001 ~ Y9999 Z0001 ~
(1) Engine Model and Serial Number
KiSC issued 06, 2009 A

GENERAL
L3008,L3608, WSM
G-3 (TH)
[2] E2 ENGINE
[Example : Model Name D1803-M-E2-XXXX]
The emission controls that have been put into effect in various countries to prevent air pollution will be stepped up.
The time to enforce the regulations differs depending on the engine output classifications.
KUBOTA has been supplying the diesel engines conforming to the emission regulations in respective countries.
exhaust emissions regulations shift to the second stage. KUBOTA executed the improvement of the engine according
to this regulation.
In order to discriminate the engines conforming to Tier 1 / Phase 1 requirements and those conforming to Tire 2
/ Phase 2 requirements, we have adopted E2 as a new model name for the engines conforming Tire 2 / Phase 2
regulations.
In the after-sale services for 03-M-E2 series engines, only use the dedicated parts for E2 models and carry out
the maintenance services accordingly.
9Y1210284GEG0003US0
[3] CYLINDER NUMBER
The cylinder numbers of KUBOTA diesel engine are designated
as shown in the figure.
The sequence of cylinder numbers is given as No.1, No.2 and
No.3 starting from the gear case side.
9Y1210284GEG0004US0
KiSC issued 06, 2009 A

GENERAL
L3008,L3608, WSM
G-4 (TH)
2. GENERAL PRECAUTIONS
• During disassembly, carefully arrange removed parts in a clean
area to prevent confusion later. Screws, bolts and nuts should
be installed in their original position to prevent reassembly
errors.
• When special tools are required, use KUBOTA genuine special
tools. Special tools which are not frequently used should be
made according to the drawings provided.
• Before disassembling or servicing electrical wires, always
disconnect the ground cable from the battery first.
• Remove oil and dirt from parts before measuring.
• Use only KUBOTA genuine parts for parts replacement to
maintain machine performance and to assure safety.
• Gaskets and O-rings must be replaced during reassembly.
Apply grease to new O-rings or oil seals before assembling.
See the figure left side.
• When reassembling external snap rings or internal snap rings,
they must be positioned so that sharp edge faces against the
direction from which a force is applied. See the figure left side.
• When inserting spring pins, their splits must face the direction
from which a force is applied. See the figure left side.
• To prevent damage to the hydraulic system, use only specified
fluid or equivalent.
9Y1210278GEG0074US0
(1) Grease
(2) Force
(3) Sharp Edge
(4) Axial Force
(5) Rotating Movement
(A) External Snap Ring
(B) Internal Snap Ring
KiSC issued 06, 2009 A

GENERAL
L3008,L3608, WSM
G-5 (TH)
3. HANDING PRECAUTIONS FOR ELECTRICAL
PARTS AND WIRING
To ensure safety and prevent damage to the machine and
surrounding equipment, heed the following precautions in handling
electrical parts and wiring.
IMPORTANT
• Check electrical wiring for damage and loosened
connection every year. To this end, educate the customer
to do his or her own check and at the same time
recommend the dealer to perform periodic check for a fee.
• Do not attempt to modify or remodel any electrical parts
and wiring.
• When removing the battery cables, disconnect the negative
cable first. When installing the battery cables, connect the
positive cable first.
WSM000001GEG0062US0
[1] WIRING
• Securely tighten wiring terminals.
WSM000001GEG0063US0
• Do not let wiring contact dangerous part.
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• Securely insert grommet.
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(1) Negative Terminal (2) Positive Terminal
(1) Correct
(Securely Tighten)
(2) Incorrect
(Loosening Leads to Faulty Contact)
(1) Dangerous Part (Sharp Edge)
(2) Wiring (Incorrect)
(3) Wiring (Correct)
(4) Dangerous Part
(1) Grommet (A) Correct
(B) Incorrect
KiSC issued 06, 2009 A

GENERAL
L3008,L3608, WSM
G-6 (TH)
• Securely clamp, being careful not to damage wiring.
WSM000001GEG0067US0
• Clamp wiring so that there is no twist, unnecessary sag, or
excessive tension, except for movable part, where sag be
required.
WSM000001GEG0068US0
• In installing a part, take care not to get wiring caught by it.
WSM000001GEG0069US0
• After installing wiring, check protection of terminals and
clamped condition of wiring, only connect battery.
WSM000001GEG0070US0
(1) Clamp
(Wind Clamp Spirally)
(2) Wire Harness
(3) Clamp
(4) Welding Dent
(1) Wiring
(2) Clamp
(A) Correct
(B) Incorrect
(1) Wiring (A) Incorrect
(1) Cover
(Securely Install Cover)
KiSC issued 06, 2009 A