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TO THE READER
This Workshop Manual has been prepared to provide servicing personnel with
information on the mechanism, service and maintenance of MX5100. It is divided into
three parts, “General”, “Mechanism” and “Servicing”.
■ General
Information on the tractor identification, the general precautions, maintenance check
list, check and maintenance and special tools are described.
■ Mechanism
Information on the construction and function are included. This part should be
understood before proceeding with troubleshooting, disassembling and servicing.
Refer to Diesel Engine / Tractor Mechanism Workshop Manual (Code No. 9Y021-
01874 / 9Y021-18201) for the one which has not been described to this workshop
manual.
■ Servicing
Information on the troubleshooting, servicing specification lists, tightening torque,
checking and adjusting, disassembling and assembling, and servicing which cover
procedures, precautions, factory specifications and allowable limits.
All information illustrations and specifications contained in this manual are based on
the latest product information available at the time of publication.
The right is reserved to make changes in all information at any time without notice.
Due to covering many models of this manual, information or picture being used, have
not been specified as one model.
November 2007
© KUBOTA Corporation 2007
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MX5100, WSM
SAFETY INSTRUCTIONS
SAFETY INSTRUCTIONS
BEFORE SERVICING AND REPAIRING
• 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 firm and level ground, and set
the parking brake.
• Lower the implement to the ground.
• Stop the engine, and remove the key.
• Disconnect the battery negative cable.
• Hang a “DO NOT OPERATE” tag in operator
station.
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.
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MX5100, WSM
SAFETY INSTRUCTIONS
SAFETY STARTING
• Do not start the engine by shorting across starter
terminals or bypassing the safety start switch.
• Do not alter or remove any part of machine safety
system.
• Before starting the engine, make sure that all shift
levers are in neutral positions or in disengaged
positions.
• Never start the engine while standing on ground.
Start the engine only from operator’s seat.
SAFETY WORKING
• Do not work on the machine while under the influence
of alcohol, medication, or other substances or while
fatigued.
• Wear close fitting clothing and safety equipment
appropriate to the job.
• Use tools appropriate to the work. Makeshift tools,
parts, and procedures are not recommended.
• When servicing is performed together by two or more
persons, take care to perform all work safely.
• Do not work under the machine that is supported
solely by a jack. Always support the machine by
safety stands.
• Do not touch the rotating or hot parts while the engine
is running.
• Never remove the radiator cap while the engine is
running, or immediately after stopping. Otherwise, hot
water will spout out from radiator. Only remove
radiator cap when cool enough to touch with bare
hands. Slowly loosen the cap to first stop to relieve
pressure before removing completely.
• Escaping fluid (fuel or hydraulic oil) under pressure
can penetrate the skin causing serious injury. Relieve
pressure before disconnecting hydraulic or fuel lines.
Tighten all connections before applying pressure.
• Do not open high-pressure fuel system.
High-pressure fluid remaining in fuel lines can cause
serious injury. Do not disconnect or attempt to repair
fuel lines, sensors, or any other components between
the high-pressure fuel pump and injectors on engines
with high pressure common rail fuel system.
• High voltage exceeding 100 V is generated in the
ECU and injector.
Pay sufficient caution to electric shock when
performing work activities.
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MX5100, WSM
SAFETY INSTRUCTIONS
AVOID FIRES
• Fuel is extremely flammable and explosive under
certain conditions. Do not smoke or allow flames or
sparks in your working area.
• To avoid sparks from an accidental short circuit,
always disconnect the battery negative cable first and
connect it last.
• Battery gas can explode. Keep sparks and open
flame away from the top of battery, especially when
charging the battery.
• Make sure that no fuel has been spilled on the engine.
VENTILATE WORK AREA
• If the engine must be running to do some work, make
sure the area is well ventilated. Never run the engine
in a closed area. The exhaust gas contains poisonous
carbon monoxide.
PREVENT ACID BURNS
• Sulfuric acid in battery electrolyte is poisonous. It is
strong enough to burn skin, clothing and cause
blindness if splashed into eyes. Keep electrolyte
away from eyes, hands and clothing. If you spill
electrolyte on yourself, flush with water, and get
medical attention immediately.
DISPOSE OF FLUIDS PROPERLY
• Do not pour fluids into the ground, down a drain, or
into a stream, pond, or lake. Observe relevant
environmental protection regulations when disposing
of oil, fuel, coolant, electrolyte and other harmful
waste.
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MX5100, WSM
SAFETY INSTRUCTIONS
PREPARE FOR EMERGENCIES
• Keep a first aid kit and fire extinguisher handy at all
times.
• Keep emergency numbers for doctors, ambulance
service, hospital and fire department near your
telephone.
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MX5100, WSM
SAFETY INSTRUCTIONS
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.
SAFETY DECALS
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MX5100, WSM
SAFETY INSTRUCTIONS
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MX5100, WSM
SAFETY INSTRUCTIONS
8
MX5100, WSM
SPECIFICATIONS
SPECIFICATIONS
NOTE: *Manufacture’s estimate
The company reserves the right to change the specifications without notice.
W10281030
Model
MX5100
2WD 4WD
Engine
Model V2403-M-TE3
Type E-TVCS Indirect injection, water-cooled diesel
No. of cylinders / Aspiration 4 / Turbocharged
Total displacement 2.434 L (148.6 cu.in.)
Bore and stroke 87 × 102.4 mm (3.4 × 4.0 in.)
Net power 37.3 kW (50 HP)*
PTO power (factory observed)
32.8 kW (44 HP)* / 2700 min
−1
(rpm)
Maximum torque 166.3 N·m (122.7 lbf·ft)
Battery capacity 12 V, RC : 133 min, OCA : 582 A
Fuel Diesel fuel No. 1 [below −10 °C (14 °F)] Diesel fuel No. 2 [above −10 °C (14 °F)]
Capacities
Fuel tank 48 L (12.7 U.S.gals, 10.6 Imp.gals)
Engine crankcase (with filter) 8.0 L (8.5 U.S.qts, 7.0 Imp.qts)
Engine coolant 7.0 L (7.4 U.S.qts, 5.8 Imp.qts)
Transmission case 44.0 L (11.6 U.S.gals, 9.7 Imp.gals)
Dimensions
Overall length (without 3P) 3245 mm (127.8 in.) 3120 mm (122.8 in.)
Overall width (min. tread) 1770 mm (69.7 in.)
Overall height (with ROPS) 2430 mm (95.7 in.)
Wheel base 1895 mm (74.6 in.)
Min. ground clearance 405 mm (15.9 in.) 385 mm (15.2 in.)
Tread
Front
1280 mm (50.4 in.), 1380 mm (54.3 in.)
1480 mm (58.3 in.), 1580 mm (62.2 in.)
1325 mm (52.2 in.)
Rear 1375 mm (54.1 in.), 1490 mm (58.7 in.)
Weight (with ROPS) 1528 kg (3369 lbs) 1642 kg (3620 lbs)
Travelling
system
Standard tire
size
Front 7.5L-15 9.5-16
Rear 14.9-26
Clutch Dry type single stage
Steering Hydrostatic power steering
Transmission Gear shift, 8 forward and 8 reverse
Braking system Wet disk type
Min. turning radius (with brake) 2.6 m (8.5 feet) 2.7 m (8.9 feet)
Hydraulic unit
Hydraulic control system Position control (standard), Draft (Option)
Pump capacity 35.8 L (9.5 U.S.gals)
Three point hitch SAE Category Ι & ΙΙ
Max. lift force
At lift points 1300 kg (2870 lbs)
24 in. behind
lift points
1050 kg (2310 lbs)
System pressure 18.6 MPa (190 kgf/cm
2
)
PTO
Rear PTO SAE 1-3/8, 6 splines
PTO / Engine speed
540 / 2700 min
-1
(rpm)
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MX5100, WSM
TRAVELLING SPEEDS
TRAVELLING SPEEDS
The company reserves the right to change the specifications without notice.
W10350650
Model MX5100
Tire size (Rear) 14.9-26
Range gear shift
lever
Main gear shift
lever
km/h (mph)
Forward
Low
1 1.6 (1.0)
2 2.2 (1.4)
3 3.6 (2.3)
4 5.4 (3.3)
High
1 7.6 (4.7)
210.8 (6.7)
3 17.5 (10.9)
4 25.9 (16.0)
Reverse
Low
1 1.5 (0.9)
2 2.1 (1.3)
3 3.3 (2.1)
4 4.9 (3.1)
High
1 7.0 (4.3)
2 9.9 (6.1)
3 16.1 (10.0)
4 23.7 (14.7)
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MX5100, WSM
DIMENSIONS
DIMENSIONS
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MX5100, WSM
DIMENSIONS
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MX5100, WSM
DIMENSIONS
G GENERAL
CONTENTS
GENERAL
1. TRACTOR IDENTIFICATION ......................................................................... G-1
[1] MODEL NAME AND SERIAL NUMBER................................................ G-1
[2] 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] HANDLING OF CIRCUIT TESTER......................................................... G-7
4. LUBRICANTS, FUEL AND COOLANT ......................................................... G-8
5. TIGHTENING TORQUES ............................................................................. G-10
[1] GENERAL USE SCREWS, BOLTS AND NUTS................................. G-10
[2] STUD BOLTS.......................................................................................... G-10
[3] METRIC SCREWS, BOLTS AND NUTS ............................................. G-11
[4] AMERICAN STANDARD SCREWS, BOLTS AND NUTS WITH UNC
OR UNF THREADS............................................................................... G-11
[5] PLUGS..................................................................................................... G-11
6. MAINTENANCE............................................................................................. G-12
7. CHECK AND MAINTENANCE..................................................................... G-14
[1] DAILY CHECK........................................................................................ G-14
[2] CHECK POINTS OF INITIAL 50 HOURS........................................... G-19
[3] CHECK POINTS OF EVERY 50 HOURS........................................... G-21
[4] CHECK POINTS OF EVERY 100 HOURS........................................ G-23
[5] CHECK POINTS OF EVERY 200 HOURS......................................... G-28
[6] CHECK POINTS OF EVERY 400 HOURS......................................... G-31
[7] CHECK POINT OF EVERY 600 HOURS ........................................... G-32
[8] CHECK POINT OF EVERY 800 HOURS ........................................... G-33
[9] CHECK POINT OF EVERY 1500 HOURS ......................................... G-34
[10]CHECK POINTS OF EVERY 3000 HOURS....................................... G-36
[11]CHECK POINT OF EVERY 1 YEAR................................................... G-38
[12]CHECK POINTS OF EVERY 2 YEARS.............................................. G-38
[13]OTHERS.................................................................................................. G-41
8. SPECIAL TOOLS.......................................................................................... G-43
[1] SPECIAL TOOLS FOR ENGINE .......................................................... G-43
[2] SPECIAL TOOLS FOR TRACTOR....................................................... G-52
9. TIRES............................................................................................................. G-59
[1] TYPES OF TIRE.................................................................................... G-59
[2] TREADS ADJUSTMENT ........................................................................ G-60
(1) Front Wheels...................................................................................... G-60
(2) Rear Wheels ...................................................................................... G-61
(3) Wheel Hub......................................................................................... G-62
[3] TIRE PRESSURE................................................................................... G-63
[4] TIRE LIQUID INJECTION...................................................................... G-64
[5] IMPLEMENT LIMITATIONS.................................................................... G-67
G-1
MX5100, WSM
G GENERAL
1. TRACTOR IDENTIFICATION
[1] MODEL NAME AND SERIAL NUMBER
When you contact local KUBOTA distributor, always specify the
engine serial number, the tractor serial number and hour meter
reading.
W10106000
(1) Tractor Identification Plate
(2) Tractor Serial Number
(3) Engine Serial Number
(4) Hour Meter
G-2
MX5100, WSM
G GENERAL
[2] CYLINDER NUMBER
The cylinder numbers of KUBOTA diesel engine is designated as
shown in the figure.
The sequence of cylinder numbers is given as No.1, No.2, No.3
and No.4 starting from the front cover side.
W1011077
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