Kubota L2501 Service Manual
WORKSHOP MANUAL
KiSC issued 09, 2014 A
TRACTOR
L2501
TO THE READER
KiSC issued 09, 2014 A
This Workshop Manual tells the servicing personnel about the mechanism, servicing and
maintenance of the L2501. It contains 4 parts: "Information", "General", "Mechanism" and
"Servicing".
Information
This section primarily contains information below.
• Safety First
• Safety Decal
• Specifications
• Dimensions
General
This section primarily contains information below.
• Engine Identification
• Model Identification
• General Precautions
• Maintenance Check List
• Check and Maintenance
• Special Tools
Mechanism
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.
Servicing
This section primarily 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.
September, 2014
© KUBOTA Corporation 2014
I INFORMATION
KiSC issued 09, 2014 A
INFORMATION
KiSC issued 09, 2014 A
CONTENTS
1. SAFETY FIRST .............................................................................................................................. I-1
2. SAFETY DECALS .......................................................................................................................... I-4
3. SPECIFICATIONS..........................................................................................................................I-7
4. TRAVELING SPEEDS....................................................................................................................I-8
5. DIMENSIONS.................................................................................................................................I-9
L2501, WSM
SAFETY FIRST
DANGER
WARNING
CAUTION
IMPORTANT
NOTE
KiSC issued 09, 2014 A
INFORMATION
1. SAFETY FIRST
• This symbol, the industry's "Safe ty Alert Symbol", is used t hroughout this manual and o n 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 try to repair or use this
unit.
• Indicates an imminently hazardous situation which, if not a voided, will result in death or serious injury.
• Indicates a potentially hazardous situ ation which, if not avoided , could result in death or serious injury.
• Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate
injury.
• Indicates that equipment or property damage could result if instructions are not followed.
• Gives helpful information.
WSM000001INI0001US1
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.
WSM000001INI0010US0
START SAFELY
• Do not do the procedures below wh en 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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I-1
L2501, WSM
KiSC issued 09, 2014 A
INFORMATION
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 r emove 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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I-2
L2501, WSM
KiSC issued 09, 2014 A
INFORMATION
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 ext inguisher ready at all
times.
• Keep the emergency contact telephone numbers
near your telephone at all times.
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I-3
L2501, WSM
KiSC issued 09, 2014 A
INFORMATION
2. SAFETY DECALS
The following safety decals 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.
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9Y1211121INI0001US0
I-4
L2501, WSM
KiSC issued 09, 2014 A
INFORMATION
9Y1211121INI0002US0
I-5
L2501, WSM
KiSC issued 09, 2014 A
INFORMATION
CARE OF DANGER, WARNING AND CAUTION LABELS
1. 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.
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 replace component.
5. Mount new danger, warning and caution labels by applying on a clean dry surface and pressing any bubbles to
outside edge.
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I-6
L2501, WSM
NOTE
KiSC issued 09, 2014 A
INFORMATION
3. SPECIFICATIONS
L2501
Model
PTO power* 15.3 kW (20.5 HP) 14.2 kW (19.0 HP)
Maker KUBOTA
Model D1703-M-DI-E4
Type Indirect injection, Vertical, Water-cooled 4 cycle diesel
Number of cylinders 3
Bore and stroke 87 × 92.4 mm (3.4 × 3.6 in.)
Engine
Capacities
Dimensions
Weight (with ROPS) 1100 kg (2425 lbs) 1180 kg (2601 lbs) 1190 kg (2623 lbs)
Traveling
system
Hydraulic unit
PTO
Total displacement 1.647 L (100.47 cu.in.)
Engine gross power* 18.5 kW (24.8 HP)
Engine net power* 17.8 kW (23.9 HP)
Rated revolution 36.7 rps (2200 min
Low idling revolution 17.5 to 19.2 rps (1050 to 1150 min
Maximum torque 95.2 N·m (9.71 kgf·m, 70.2 lbf·ft)
Battery 12 V RC: 123 min., CCA: 490 A
Fuel tank 38.0 L (10.0 U.S.gals, 8.4 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
Overall length (without 3P) 2810 mm (110.6 in.) 2700 mm (106.3 in.)
Overall width (min. tread) 1400 mm (55.1 in.)
Overall height (with ROPS) 2330 mm (91.7 in.)
Overall height
(Top of steering wheel)
Wheel base 1610 mm (63.3 in.)
Min. ground clearance 345 mm (13.6 in.) 340 mm (13.4 in.)
Tread
Tires
Indust.
(option)
Clutch Dry type single stage
Steering Integral type power steering
Transmission Gear shaft, 8 forward and 4 reverse
Brake Wet disk type
Min. turning radius
(with brake)
Hydraulic control system Position control
Pump capacity (main) 20.9 L/min. (5.52 U.S.gals/min., 4.60 Imp.gals/min.)
Pump capacity (PS) 12.7 L/min. (3.36 U.S.gals/min., 2.79 Imp.gals/min.)
Three point hitch Category 1
Max. lift force
System pressure 15.2 MPa (155 kgf/cm
Rear PTO
PTO / Engine speed 540 / 1910 min
Front 1050 mm (41.3 in.) 1095 mm (43.1 in.)
Rear 1115 mm (43.8 in.), 1195 mm (47.1 in.), 1290 mm (50.8 in.)
AG front 5-15 7-16
AG rear 11.2-24
Front N/A 27 × 8.50-15
Rear N/A 15-19.5 R4
At lift points 870 kg (1918 lbs)
24 in. behind
lift points
PTO shaft
size
Type Transmission driven with overrunning Live-continuous running
(7.1 U.S.gals, 5.9 Imp.gals)
2.4 m (7.9 feet) 2.5 m (8.2 feet)
Manual Transmission HST
2WD 4WD 4WD
-1
(rpm))
-1
(rpm))
27.0 L
(7.3 U.S.gals, 6.1 Imp.gals)
-1
27.5 L
1475 mm (58.1 in.)
630 kg (1389 lbs)
2
, 2205 psi)
SAE 1-3/8, 6-splines
(rpm) 540 / 2105 min-1 (rpm)
(6.2 U.S.gals, 5.2 Imp.gals)
Hydrostatic transmission,
23.5 L
3 range speed
• *Manufacturer's estimate
The company reserve the right to change the specifications without notice.
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L2501, WSM
KiSC issued 09, 2014 A
4. TRAVELING SPEEDS
Manual Transmission Type
Model L2501
Tire size (Rear) 11.2-24
Shuttle shift
lever
Forward
Reverse Reverse
Range gear
shift lever
Low
High
Main gear shift
lever
11.4 0.9
21.8 1.1
32.6 1.8
44.5 2.8
15.3 3.3
26.9 4.3
310.0 6.2
417.3 10.7
11.9 1.2
22.5 1.8
33.6 2.3
46.2 3.9
INFORMATION
(At rated engine rpm)
km/h mph
The company reserves the right to change the specifications without notice.
HST Type
Model L2501
Tire size (Rear) 11.2-24
Range gear shift lever km/h mph
L5.7 3.5
Forward
Reverse
The company reserves the right to change the specifications without notice.
M9.9 6.2
H 18.5 11.5
L5.2 3.2
M8.9 5.5
H 16.6 10.3
(At rated engine rpm)
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L2501, WSM
KiSC issued 09, 2014 A
5. DIMENSIONS
INFORMATION
9Y1211121INI0007US0
I-9
G GENERAL
KiSC issued 09, 2014 A
GENERAL
KiSC issued 09, 2014 A
CONTENTS
1. TRACTOR IDENTIFICATION....................................................................................................... G-1
[1] MODEL NAME AND SERIAL NUMBERS.............................. ... .......................................... ... G-1
[2] E4B ENGINE................................... ... ... .... ... ... ... .......................................... .... ...................... G-2
[3] CYLINDER NUMBER............................................................................................................. G-2
2. GENERAL PRECAUTIONS.......................................................................................................... G-3
3. HANDLING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING .................................... G-4
[1] WIRING .................................................................................................................................. G-4
[2] BATTERY............................................................................................................................... G-6
[3] FUSE...................................................................................................................................... G-6
[4] CONNECTOR ........................................................................................................................ G-6
[5] CIRCUIT TESTER.................................................................................................................. G-7
[6] COLOR OF WIRING ..............................................................................................................G-8
4. LUBRICANTS, FUEL AND COOLANT............... ... ... .... ... ... ... .......................................... ... .... ... ... G-9
5. TIGHTENING TORQUES... ... ... ... .... ... ... ... ... .......................................... .... ................................. G-11
[1] GENERAL USE SCREWS, BOLTS AND NUTS .................................................................. G-11
[2] STUD BOLTS....................................................................................................................... G-11
[3] METRIC SCREWS, BOLTS AND NUTS.............................................................................. G-12
[4] AMERICAN STANDARD SCREWS, BOLTS AND NUTS WITH UNC OR UNF
THREADS ............................................................................................................................ G-12
[5] PLUGS ................................................................................................................................. G-12
6. MAINTENANCE CHECK LIST ................................. .... .......................................... ... ... ... ... .... ... . G-13
7. CHECK AND MAINTENANCE ................................................................................................... G-15
[1] DAILY CHECK...................................................................................................................... G-15
[2] CHECK POINTS OF INITIAL 50 HOURS ............................................................................ G-16
[3] CHECK POINTS OF EVERY 50 HOURS ............................................................................ G-19
[4] CHECK POINTS OF EVERY 100 HOURS .......................................................................... G-22
[5] CHECK POINTS OF EVERY 200 HOURS .......................................................................... G-26
[6] CHECK POINTS OF EVERY 400 HOURS .......................................................................... G-28
[7] CHECK POINT OF EVERY 600 HOURS............................................................................. G-30
[8] CHECK POINT OF EVERY 800 HOURS............................................................................. G-30
[9] CHECK POINT OF EVERY 1500 HOURS........................................................................... G-30
[10]CHECK POINT OF EVERY 3000 HOURS........................................................................... G-31
[11]CHECK POINT OF EVERY 1 YEAR.................................................................................... G-31
[12]CHECK POINTS OF EVERY 2 YEARS ............................................................................... G-31
. G-34
[13]OTHERS.......................................................................................................................
8. SPECIAL TOOLS ....................................................................................................................... G-37
[1] SPECIAL TOOLS FOR ENGINE.......................................................................................... G-37
[2] SPECIAL TOOLS FOR TRACTOR ...................................................................................... G-45
9. TIRES ......................................................................................................................................... G-56
[1] TIRE PRESSURE................................................................................................................. G-56
[2] TREADS ADJUSTMENT...................................................................................................... G-57
(1) Front Wheel.................................................................................................................... G-57
(2) Rear Wheels................................................................................................................... G-58
[3] TIRE LIQUID INJECTION .................................................................................................... G-59
[4] IMPLEMENT LIMITATIONS......................... ... ... .... ... ... ... .... ... ... .......................................... . G-62
.......
L2501, WSM
KiSC issued 09, 2014 A
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.
(1) Tractor Identification Plate
(2) Tractor Serial Number
(3) Engine Serial Number
GENERAL
(4) ROPS Identification Plate
(ROPS Serial Number)
(5) Hour Meter
9Y1211121GEG0001US0
G-1
L2501, WSM
KiSC issued 09, 2014 A
GENERAL
[2] E4B ENGINE
[Example: Engine Model Name V2403-CR-TE4]
The emission controls previously implemented in various countries to prevent air pollution will be stepped up as
Nonroad Emission Standards continue to change. The timing or applicable date of the specific Nonroad Emission
regulations depends on the engine output classification.
Over the past several years, KUBOTA has been supplying diesel engines that comply with regulations in the
respective countries affected by Nonroad Emission regulations. For KUBOTA Engines, E4B will be the designation
that identifies engine models affected by the next emission phase (See the table below).
When servicing or repairing ###-E4B series engines, use only replacement parts for that specific E4B engine,
designated by the appropriate E4B KUBOTA Parts List and perform all maintenance services listed in the appro priate
KUBOTA Operator's Manual or in the appropriate E4B KUBOTA Workshop Manual. Use of incorrect replacement
parts or replacement parts from othe r emission level engines (for example: E3B engines), may result in emission
levels out of compliance with the original E4B design and EPA or other applicable regulations.Please refer to the
emission label located on the engin e head cover to identify Output classification and Emission Control Information.
E4B engines are identified with "EF" at the end of the Model designation, on the US EPA label. Please note: E4B is
not marked on the engine.
Category (1) Engine output classification EU regulation
K From 19 to 37 kW STAGE IIIB
P From 37 to less than 56 kW STAGE IIIB
N From 56 to less than 75 kW STAGE IIIB
M From 75 to less than 130 kW STAGE IIIB
[3] CYLINDER NUMBER
Category (2) Engine output classification EPA regulation
Less than 19 kW Tier 4
EF
(1) EU regulation engine output classification category
(2) "E4B" engines are identified with "EF" at the end of the Model designation, on
the US EPA label.
"E4B" designates some Interim Tier 4 / Tier 4 models, depending on engine
output classification.
From 19 to less than 56 kW Interim Tier 4
From 56 to less than 75 kW Interim Tier 4
From 75 to less than 130 kW Interim Tier 4
9Y1211121GEG0002US0
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.
9Y1211121GEG0003US0
G-2
L2501, WSM
KiSC issued 09, 2014 A
2. GENERAL PRECAUTIONS
• When you disassemble, carefully put the parts in a clean area
to make it easy to find the parts. You must install the screws,
bolts and nuts in their initial position to prevent the reassembly
errors.
• When it is necessary to use special tools, use KUBOTA special
tools. Refer to the drawings when you make special tools that
you do not use frequently.
• Before you disassemble or repair machine, make sure that you
always disconnect the ground cable from the battery first.
• Remove oil and dirt from parts before you measure.
• Use only KUBOTA genuine parts for replacement to keep the
machine performance and to make sure of safety.
• You must replace the gaskets and O-rings when you assemble
again. Apply grease (1) to new O-rings or oil seals before you
assemble.
• When you assemble the external or internal snap rings, make
sure that the sharp edge (3) faces against the direction from
which force (2) is applied.
• 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.
• Clean the parts before you measure them.
• Tighten the fittings to the specified torque. Too much torque can
cause damage to the hydraulic units or the fittings. Not sufficient
torque can cause oil leakage.
• When you use a new hose or pipe, tighten the nuts to the
specified torque. Then loosen (approx. by 45 °) and le t them be
stable before you tighten to the specified torque (This is not
applied to the parts with seal tape).
• When you remove the two ends of a pipe, remove the lower end
first.
• Use two pliers in removal and installation. One to hold the stable
side, and the other to turn the side you remove to prevent twists.
• Make sure that the sleeves of flared connectors and tapers of
hoses are free of dust and scratches.
• After you tighten the fittings, clean the joint and apply the
maximum operation pressure 2 to 3 times to examine oil
leakage.
(1) Grease
(2) Force
(3) Sharp Edge
(4) Axial Force
(5) Rotating Movement
GENERAL
(A) External Circlip
(B) Internal Circlip
WSM000001GEG0106US0
G-3
L2501, WSM
IMPORTANT
KiSC issued 09, 2014 A
GENERAL
3. HANDLING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING
To ensure safety and prevent damage to the machine and
surrounding equipment, obey the following precautions in handling
electrical parts and wiring.
• 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 try to modify or remodel any electrical parts and
wiring.
• When removing the battery cables, disconnect the ne gative
cable first. When installing the battery cables, connect the
positive cable first.
(1) Negative Terminal (2) Positive Terminal
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[1] WIRING
• After installing wiring, check protection of terminals and
clamped condition of wiring.
(1) Cover
(Securely Install Cover)
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• Securely tighten wiring terminals.
(1) Correct
(Securely Tighten)
(2) Incorrect
(Loosening Leads to Faulty Contact)
• Do not let wiring contact dangerous part.
(1) Dangerous Part (Sharp Edge)
(2) Wiring (Incorrect)
(3) Wiring (Correct)
(4) Dangerous Part
WSM000001GEG0063US0
WSM000001GEG0064US0
G-4
L2501, WSM
KiSC issued 09, 2014 A
• Repair or change torn or aged wiring immediately.
(1) Aged
(2) Torn
(3) Insulating Vinyl Tape
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• Securely insert grommet.
(1) Grommet (A) Correct
(B) Incorrect
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• Securely clamp, being careful not to damage wiring.
(1) Clamp
(Wind Clamp Spirally)
(2) Wire Harness
(3) Clamp
(4) Welding Dent
WSM000001GEG0067US0
GENERAL
• Clamp wiring so that there is no twist, unnecessary sag, or
excessive tension, except for movable part, where sag be
required.
(1) Wiring
(2) Clamp
(A) Correct
(B) Incorrect
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• In installing a part, be careful not to get wiring caught by it.
(1) Wiring (A) Incorrect
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G-5
L2501, WSM
DANGER
KiSC issued 09, 2014 A
[2] BATTERY
GENERAL
• Be careful not to confuse positive and negative terminal posts.
• When you remove battery cables, disconnect negative cable
first. When you install battery cables, check for polarity and
connect positive cable first.
• Do not install any battery with capacity other than is specified
(Ah).
• After you connect cables to batter y terminal posts, apply high
temperature grease to them and securely install terminal covers
on them.
• Do not allow dirt and dust to collect on battery.
To avoid serious injury or death:
• Be careful not to let battery liquid spill on your skin and
clothes. If contaminated, wash it off with water
immediately.
• Before you recharge the battery, remove it from the
machine.
• Before you recharge, remove cell caps.
• Recharge in a well-ventilated place where there is no open
flame nearby, as hydrogen gas and oxygen are formed.
WSM000001GEG0071US0
[3] FUSE
[4] CONNECTOR
• Use fuses with specified capacity.
Neither too large nor small capacity fuse is acceptable.
• Never use steel nor copper wire in place of fuse.
• Do not install working light, radio set, etc. on machine which is
not provided with reserve power supply.
• Do not install accessories if fuse capacity of reserve power
supply is exceeded.
(1) Fuse
(2) Fusible Link
(3) Slow Blow Fuse
WSM000001GEG0072US0
• For connector with lock, push lock to separate.
(A) Push
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• In separating connectors, do not pull wire harnesses.
• Hold connector bodies to separate.
(A) Correct (B) Incorrect
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L2501, WSM
KiSC issued 09, 2014 A
GENERAL
• Use sandpaper to remove rust from terminals.
• Repair deformed terminal. Make sure that there is no terminal
being exposed or displaced.
(1) Exposed Terminal
(2) Deformed Terminal
(3) Sandpaper
(4) Rust
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• Make sure that there is no female connector being too open.
(A) Correct (B) Incorrect
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• Make sure that plastic cover is large enough to cover whole
connector.
(1) Cover (A) Correct
(B) Incorrect
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[5] CIRCUIT TESTER
• Use tester correctly following manual provided with tester.
• Check for polarity and range.
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L2501, WSM
KiSC issued 09, 2014 A
[6] COLOR OF WIRING
GENERAL
• Colors of wire are specified to the color codes.
• This symbol of "/" shows color with stripe(s).
(An example)
Red stripe on white color: W/R
Color of wiring Color code
Black B
Brown Br
Green G
Gray Gy or Gr
Blue L
Light Green Lg
Orange Or
Pink P
Purple Pu or V
Red R
Sky Blue Sb
White W
Yellow Y
(1) Wire Color (2) Stripe
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G-8
L2501, WSM
NOTE
KiSC issued 09, 2014 A
4. LUBRICANTS, FUEL AND COOLANT
GENERAL
No. Place
1Fuel
2 Coolant
Engine crankcase
3
(with filter)
Transmission
case
Transmission
4
case
Transmission
case
5 Front axle case (4WD)
Manual
Transmission,
2WD
Manual
Transmission,
4WD
HST, 4WD
Capacity
L2501
38.0 L
10.0 U.S.gals
8.4 Imp.gals
6.0 L
6.3 U.S.qts
5.3 Imp.qts
5.7 L
6.0 U.S.qts
5.0 Imp.qts
27.0 L
7.1 U.S.gals
5.9 Imp.gals
27.5 L
7.3 U.S.gals
6.1 Imp.gals
23.5 L
6.2 U.S.gals
5.2 Imp.gals
4.5 L
4.8 U.S.qts
4.0 Imp.qts
Lubricants, fuel and coolant
• No. 2-D diesel fuel
• No. 1-D diesel fuel if temperature
is below –10 °C (14 °F)
Fresh clean water with anti-freeze
Engine oil: Refer to next page.
• Above 25 °C (77 °F)
SAE30, 10W-30 or 15W-40
• −10 to 25 °C (14 to 77 °F)
SAE20, 10W-30 or 15W-40
•Below −10 °C (14 °F)
SAE10W-30
KUBOTA SUPER UDT-2 fluid
KUBOTA SUPER UDT-2 fluid or
SAE80-90 gear oil
Greasing
No. Place No. of greasing point Capacity Type of grease
Front wheel hub (2WD) 2 A small amount Bearing grease
Knuckle shaft (2WD) 2
Front axle support
(4WD)
Clutch pedal 1
6
Brake pedal 1
Pedal shaft 1
Battery terminal 2
Lift rod 1
Tie-rod end (4WD) 4
• The product name of KUBOTA genuine UDT fluid may be different from that in the Operator's Manual
depending on countries or territories.
2
Multipurpose type grease
Until grease overflows
NLGI-2 or NLGI-1
(GC-LB)
9Y1211121GEG0004US0
G-9
L2501, WSM
NOTE
KiSC issued 09, 2014 A
GENERAL
Engine Oil
• Oil used in the engine should have an American Petroleum Institute (API) service classification and
Proper SAE Engine Oil according to the ambient temperatures as shown above:
• Refer to the following table for the suitable API classification engine oil according to the engine type (with
internal EGR, external EGR or non-EGR) and the fuel.
Fuel used
Engine oil classification (API classification)
Oil class of engines except external EGR Oil class of engines with external EGR
Ultra Low Sulfur Fuel
[< 0.0015 % (15 ppm)]
CF, CF-4, CG-4, CH-4 or CI-4
CF or CI-4
(Class CF-4, CG-4 and CH-4 engine oils
cannot be used on EGR type engines)
EGR: Exhaust Gas Re-circulation
• The CJ-4 engine oil is intended for DPF (Diesel Particulate Filter) type engines, and cannot be used on
this machine.
except external EGR with external EGR
Models L2501 —
Fuel
• Cetane number of 45 minimum. Cetane number greater than 50 is preferred, especially for temperatures
below −20 °C (−4 °F) or elevations above 1500 m (5000 ft).
• Diesel fuels specified to EN 590 or ASTM D975 are recommended.
• No.2-D is a distillate fuel of lower volatility for engines in industrial and he avy mobile ser vice. (SAE J31 3
JUN87)
Transmission Oil
• KUBOTA Super UDT-2: For an enhanced ownership experience, we highly recommend Super UDT-2 to be
used instead of standard hydraulic/transmission fluid.
Super UDT-2 is a proprietary KUBOTA formulation that deliveries superior performance and protection in
all operating conditions.
Regular UDT is also permitted for use in this machine.
Indicated capacities of water and oil are manufacturer's estimate.
9Y1211121GEG0005US0
G-10
L2501, WSM
KiSC issued 09, 2014 A
GENERAL
5. TIGHTENING TORQUES
[1] GENERAL USE SCREWS, BOLTS AND NUTS
Tighten screws, bolts and nuts whose tightening torques are not specified in this Workshop Manual
according to the table below.
Indication on top of bolt
Indication on top of nut
Material of opponent part Ordinariness Aluminum Ordinariness Aluminum Ordinariness
Unit N·m kgf·m lbf·ft N·m kgf·m lbf·ft N·m kgf·m lbf·ft N·m kgf·m lbf·ft N·m kgf·m lbf·ft
7.9
0.80
M6
M8
M10
M12
M14
M16
M18
M20
to
9.3
18
to
20
40
to
45
63
to
72
108
to
125
167
to
191
246
to
284
334
to
392
to
0.95
1.8
to
2.1
4.0
to
4.6
6.4
to
7.4
11.0
to
12.8
17.0
to
19.5
25.0
to
29.0
34.0
to
40.0
No-grade or 4T 7T 9T
No-grade or 4T
5.8
7.9
0.80
5.8
9.81
1.00
7.24
7.9
0.80
5.8
12.3
to
to
to
to
to
to
to
to
to
to
6.8
8.8
0.90
6.5
13
17
1.7
to
to
15
19
32
29
to
to
33
34
47
to 53–––
79.6
to
–––
92.5
3
12
to
–––
141
181
to
–––
209
246
to
–––
289
to
2.0
3.2
to
3.5
13
to
14
24
to
25
11.2
24
to
27
48
to
55
78
to
90
124
to
147
197
to
225
275
to
318
368
to
431
1.15
2.4
to
2.8
4.9
to
5.7
7.9
to
9.2
12.6
to
15.0
20.0
to
23.0
28.0
to
32.5
37.5
to
44.0
8.31
18
to
20
36
to
41
58
to
66
91.2
to
108
145
to
166
203
to
235
272
to
318
8.8
0.90
18
1.8
to
to
20
2.1
4.0
to
4.5
6.4
to
7.4
40
to
44
63
to
72
–––
–––
–––
–––
to
6.5
14.2
13
30
to
to
15
34
29
61
to
to
32
70
47
103
to
to
53
117
67
1
to
196
260
to
304
344
to
402
491
to
568
WSM000001GEG0001US0
6T
1.25
to
1.45
3.0
to
3.5
6.2
to
7.2
10.5
to
12.0
17.0
to
20.0
26.5
to
31.0
35.0
to
41.0
50.0
to
58.0
9.05
to
10.4
22
to
25
45
to
52
76.0
to
86.7
123
to
144
192
to
224
254
to
296
362
to
419
[2] STUD BOLTS
Material of opponent part Ordinariness Aluminum
Unit N·m kgf·m lbf·ft N·m kgf·m lbf·ft
12
1.2
8.7
8.9
M8
M10
M12
M14
M16
M18
to
15
25
to
31
30
to
49
62
to
73
98.1
to
112
172
to
201
to
to
1.6
11
2.5
18
to
to
3.2
23
3.0
22
to
to 3631 3.2 23
5.0
6.3
46
to
to 54–––
7.5
10.0
72.4
to
to
11.5
83.1
17.5
127
to
to
20.5
148
0.90
to
to
11
1.2
20
2.0
to
to
25
2.6
–––
–––
G-11
6.5
to
8.6
15
to
18
WSM000001GEG0002US0
L2501, WSM
KiSC issued 09, 2014 A
[3] METRIC SCREWS, BOLTS AND NUTS
GENERAL
Grade
Unit N·m kgf·m lbf·ft N·m kgf·m lbf·ft
M8 24 to 27 2.4 to 2.8 18 to 20 30 to 34 3.0 to 3.5 22 to 25
M10 48 to 55 4.9 to 5.7 36 to 41 61 to 70 6.2 to 7.2 45 to 52
M12 78 to 90 7.9 to 9.2 58 to 66 103 to 117 10.5 to 12.0 76.0 to 86.7
M14 124 to 147 12.6 to 15.0 91.2 to 108 167 to 196 17.0 to 20.0 123 to 144
M16 197 to 225 20.0 to 23.0 145 to 166 260 to 304 26.5 to 31.0 192 to 224
Property class 8.8 Property class 10.9
WSM000001GEG0003US0
[4] AMERICAN STANDARD SCREWS, BOLTS AND NUTS WITH
UNC OR UNF THREADS
Grade
Unit N·m kgf·m lbf·ft N·m kgf·m lbf·ft
1/4 11.7 to 15.7 1.20 to 1.60 8.63 to 11.5 16.3 to 19.7 1.67 to 2.00 12.0 to 14.6
5/16 23.1 to 27.7 2.36 to 2.82 17.0 to 20.5 33 to 39 3.4 to 3.9 25 to 28
3/8 48 to 56 4.9 to 5.7 36 to 41 61 to 73 6.3 to 7.4 45 to 53
1/2 110 to 130 11.3 to 13.2 81.2 to 95.8 150 to 178 15.3 to 18.1 111 to 131
9/16 150 to 178 15.3 to 18.1 111 to 131 217 to 260 22.2 to 26.5 160 to 191
5/8 204 to 244 20.8 to 24.8 151 to 179 299 to 357 30.5 to 36.4 221 to 263
SAE GR.5 SAE GR.8
WSM000001GEG0008US0
[5] PLUGS
Material of opponent part
Shape Size
N·m kgf·m lbf·ft N·m kgf·m lbf·ft
Tapered screw
Straight screw G1/4 25 to 34 2.5 to 3.5 18 to 25 – – –
R1/8 13 to 21 1.3 to 2.2 9.4 to 15 13 to 19 1.3 to 2.0 9.4 to 14
R1/4 25 to 44 2.5 to 4.5 18 to 32 25 to 34 2.5 to 3.5 18 to 25
R3/8 49 to 88 5.0 to 9.0 37 to 65 49 to 58 5.0 to 6.0 37 to 43
R1/2 58.9 to 107 6.00 to 11.0 43.4 to 79.5 59 to 78 6.0 to 8.0 44 to 57
G3/8 62 to 82 6.3 to 8.4 46 to 60 – – –
G1/2 49 to 88 5.0 to 9.0 37 to 65 – – –
Ordinariness Aluminum
WSM000001GEG0005US0
G-12
L2501, WSM
KiSC issued 09, 2014 A
6. MAINTENANCE CHECK LIST
GENERAL
Service Interval
No. Item
1 Greasing –
2 Engine start system Check
3 Wheel bolt torque Check
4 Battery condition Check
5 Fan belt Adjust
6 Clutch Adjust
7 Brake Adjust
Clean
8 Air cleaner element
Replace
Clean
9 Fuel filter element
Replace
Check
10 Fuel line
Replace
11 Engine oil Change
12 Engine oil filter Replace
13 Transmission oil filter (HST) Replace
14 Toe-in Adjust
Check
15 Radiator hose and clamp
eplace
R
Check
16 Power steering oil line
Replace
Check
17 Intake air line
Replace
Check
18 Oil cooler line (HST)
Replace
19 Hydraulic oil filter Replace
20 Transmission fluid Change
21 Front axle case oil (4WD) Change
22 Greasing (2WD front wheel hub) –
23 Front axle pivot Adjust
50 100 150 200 250 300 350 400 450 500 550 600 650 700
After
since
every
50 Hr
every
50 Hr
every
50 Hr
every
100 Hr
every
100 Hr
every
100 Hr
every
100 Hr
every
100 Hr
every 1
year
every
100 Hr
every
400 Hr
every
100 Hr
every 2
years
every
200 Hr
every
200 Hr
every
200 Hr
every
200 Hr
ever
200 Hr
every 2
years
every
200 Hr
every 2
years
every
200 Hr
every 2
years
every
200 Hr
every 2
years
every
400 Hr
every
400 Hr
every
400 Hr
every
400 Hr
every
600 Hr
y
Refer-
ence
page
G-19
G-20,
G-21
G-21
G-22 *4
G-24
G-16
G-24
G-25 *1
@
G-25 *2
G-25
@
G-25
G-26
@
G-26
G-16
G-16
G-17
G-26
G-27
G-27
G-27
G-27
G-27
@
G-27
G-27
G-27
G-18
G-28,
G-29
G-30
G-30
G-30
G-13
L2501, WSM
IMPORTANT
KiSC issued 09, 2014 A
GENERAL
Service Interval
No. Item
24 Engine valve clearance Adjust
Fuel injection nozzle injection
25
pressure
26 Injection pump Check
27 Cooling system Flush
28 Coolant Change
29 Fuel system Bleed
30 Clutch housing water Drain G-34
31 Fuse Replace G-35
32 Head lamp / Light bulb Replace G-36
Check
50 100 150 200 250 300 350 400 450 500 550 600 650 700
800 Hr
1500 Hr
3000 Hr
every 2
every 2
Service
quired
After
since
every
every
every
years
years
as re-
Refer-
ence
page
G-30
G-30 @
G-31 @
G-31
G-31
G-34
• The jobs indicated by must be done after the firs t 50 hours of operation.
*1 Air cleaner should be cleaned more often in dusty conditions than in normal conditions.
*2 Every year or every 6 times of cleaning.
*3 Replace only if necessary.
*4 When the battery is used for less than 100 hours per year, check the battery condition by reading the
indicator annually.
• The items listed above (@ marked) are registered as emission related critical parts by KUBOTA in the
U.S.EPA nonroad emission regulation. As the engine owner, you are responsible for the performance of
the required maintenance on the engine according to the above instruction. Please see Warranty
Statement in detail.
9Y1211121GEG0007US0
G-14
L2501, WSM
WARNING
KiSC issued 09, 2014 A
GENERAL
7. CHECK AND MAINTENANCE
To avoid personal injury or death:
• Be sure to check and service the tractor on a le vel surface with the en gine shut off and t he parking brake
"ON" and implement lowered to the ground.
9Y1211121GEG0008US0
[1] DAILY CHECK
To prevent trouble from occurring, it is important to know the condition of the tractor. Check the following items
before starting.
9Y1211121GEG0009US0
Checking
• Check areas where previous trouble was experienced.
• Walk around the tractor.
1. Check the tire pressure, and check for wear and damage.
2. Check for oil and water leaks.
3. Check the engine oil level.
4. Check the transmission fluid level.
5. Check the coolant level.
6. Check the condition of seat belt and ROPS attaching hardware.
7. Check and clean the radiator screen and grille.
8. Check the nuts of the tires are tight.
9. Check the number plate or SMV emblem for damage and cleaner replace as necessary if equipped.
10. Care of danger, warning and caution labels.
11. Clean around the exhaust manifold and the muffler of the engine.
• While sitting in the operator's seat.
1. Check the HST pedal, brake pedals and clutch pedal.
2. Check the parking brake.
3. Check the steering wheel.
• Turning the key switch.
1. Check the performance of the Easy Checker™ lights.
2. Check the head lights, tail lights and hazard lights. Clean if necessary.
3. Check the performance of the meters and gauges.
• Starting the engine.
1. Check to see that the lights on the Easy Checker™ go off.
2. Check the color of the exhaust gas.
3. Check the brakes for proper operation.
9Y1211121GEG0010US0
G-15
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