PDF Workshop Manual Kubota M100X M110X M126X M135X Tractor - 5 MB
This comprehensive workshop manual covers the Kubota M-X series tractors, including the M100X, M110X, M126X, and M135X models.
It provides complete instructions for disassembly, repair, and reassembly of all tractor components.
This is the same manual used by Kubota dealership technicians, making it the most reliable source of information for servicing your tractor.
It's an invaluable tool for any serious mechanic or owner.
PDF Viewer
Viewer loads when you scroll here
SHARE THIS MANUAL
Download the PDF Manual
PDF viewer loading area
Text Preview from This Manual
The text below was extracted from the visible preview pages to help you confirm the manual contents before download.
--- Page 1 ---
WORKSHOP MANUAL
TRACTOR
M100X,M110X,M126X,M135X
KiSC issued 04, 2009 A
--- Page 3 ---
M100X, M110X, M126X, M135X, WSM INFORMATION
9Y1210269INI0006US0
I-7 (NA)
KiSC issued 04, 2009 A
--- Page 4 ---
M100X, M110X, M126X, M135X, WSM GENERAL
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.
(1) Grease (A) External Snap Ring
(2) Force (B) Internal Snap Ring
(3) Sharp Edge
(4) Axial Force
(5) Rotating Movement
WSM000001GEG0092US0
G-2 (NA)
KiSC issued 04, 2009 A
--- Page 5 ---
M100X, M110X, M126X, M135X, WSM GENERAL
[3] HYDRAULIC FITTINGS
(1) Hydraulic Hose Fittings
Tightening torque
Hose size Thread side
N·m kfg·m lbf·ft
02 1/8 13.8 to 15.6 1.40 to 1.60 10.2 to 11.5
03
1/4 22.6 to 27.4 2.30 to 2.80 16.7 to 20.2
04
05
3/8 45.2 to 52.9 4.60 to 5.40 33.3 to 39.0
06
WSM000001GEG0097US0
(2) Hydraulic Pipe Cap Nuts
Tightening torque
Pipe size
N·m kfg·m lbf·ft
ϕ4 × t1.0 19.7 to 29.4 2.00 to 3.00 14.5 to 21.6
ϕ6 × t1.0 24.6 to 34.3 2.50 to 3.50 18.1 to 25.3
ϕ8 × t1.0 29.5 to 39.2 3.00 to 4.00 21.7 to 28.9
ϕ10 × t1.0 39.3 to 49.0 4.00 to 5.00 29.0 to 36.1
ϕ12 × t1.5 49.1 to 68.6 5.00 to 7.00 36.2 to 50.6
ϕ15 × t1.6 108 to 117 11.0 to 12.0 79.6 to 86.7
ϕ18 × t1.6 108 to 117 11.0 to 12.0 79.6 to 86.7
WSM000001GEG0098US0
(3) Adaptors, Elbows and Nuts
Tightening torque
Item Thread side
N·m kfg·m lbf·ft
PF 1/8 45 to 53 4.5 to 5.5 33 to 39
POA-PF PF 1/4 74 to 83 7.5 to 8.5 55 to 61
(Nipple with O-ring) PF 3/8 93 to 102 9.5 to 10.5 68.8 to 75.9
PF 1/2 113 to 122 11.5 to 12.5 83.2 to 90.4
PF 1/8 23 to 26 2.3 to 2.7 17 to 19
POB-PF PF 1/4 36 to 43 3.6 to 4.4 26 to 31
(Elbow with O-ring
and no nut) PF 3/8 54 to 63 5.5 to 6.5 40 to 47
PF 1/2 73 to 83 7.4 to 8.5 54 to 61
PF 1/8 10 to 14 1.0 to 1.5 7.3 to 10
Adaptor PF 1/4 30 to 34 3.0 to 3.5 22 to 25
(NPT) PF 3/8 49 to 68 5.0 to 7.0 37 to 50
PF 1/2 69 to 88 7.0 to 9.0 51 to 65
WSM000001GEG0099US0
G-12 (NA)
KiSC issued 04, 2009 A
--- Page 6 ---
M100X, M110X, M126X, M135X, WSM GENERAL
Battery Charging
CAUTION
• When the battery is being activated, hydrogen and oxygen
gases in the battery are extremely explosive. Keep open
sparks and flames away from the battery at all times,
especially when charging the battery.
• When charging battery, ensure the vent caps are securely
in place (if equipped).
• When disconnecting the cable from the battery, start with
the negative terminal first.
When connecting the cable to the battery, start with the
positive terminal first.
• Never check battery charge by placing a metal object
across the posts.
Use a voltmeter or hydrometer.
1. To slow charge the battery, connect the battery positive terminal
to the charger positive terminal and the negative to the negative,
then recharge in the standard fashion.
2. A boost charge is only for emergencies. It will partially charge
the battery at a high rate and in a short time.
When using a boost-charged battery, it is necessary to recharge
the battery as early as possible.
Failure to do this will shorten the battery's service life.
3. The battery is charged if the indicator display turns green from
black.
4. When exchanging an old battery into new one, use battery of
equal specification shown in table.
Table
Cold
Capacity Reserve Normal
Battery Cranking
Volts (V) at 5H.R capacity Charging
type Amps
(A.H) (min.) Rate (A)
(SAE)
GP31
12 85.3 160 900 11
(105E41R)
180G51 12 160 300 1090 11
(1) Battery [A] M100X, M110X
[B] M126X, M135X
9Y1210269GEG0012US0
Direction for Storage
1. When storing the tractor for long periods of time, remove the
batter from tractor, adjust the electrolyte to the proper level and
store in a dry place out of direct sunlight.
2. The battery self-discharges while it is stored.
Recharge it once every three months in hot seasons and once
every six months in cold seasons.
NOTE
• In checking and refilling the battery, be careful not to spill
battery fluid. Split battery fluid may affect the engine
controller (ECU) located below the battery, resulting in
damage.
9Y1210269GEG0014US0
G-22 (NA)
KiSC issued 04, 2009 A
--- Page 7 ---
M100X, M110X, M126X, M135X, WSM GENERAL
Replacing the Belt (If Necessary) (M126X, M135X)
1. Loosen the lock nut first and then fully loosen the tension belt.
2. Lift the tension pulley and remove the belt.
3. Fit the new belt.
4. Tighten the tension bolt until the tension spring end comes in
close contact with the engine body. Finally tighten up the lock
nut.
Below
15 N·m
Tension bolt
1.53 kgf·m
Tightening torque 11.1 lbf·ft
123.6 to 147 N·m
Lock nut 12.6 to 15.0 kgf·m
91.2 to 108.4 lbf·ft
(1) Belt (6) Fan Pulley
(2) Tension Spring End (7) Drive Pulley
(3) Tension Bolt (8) Air-conditioner compressor
(4) Lock Nut (9) Alternator
(5) Self-tension Pulley
9Y1210269GEG0036US0
Replacing Fuel Filter
1. Remove the fuel filter.
2. Put a film of clean fuel on rubber seal of new filter.
3. Tighten the filter quickly until it contacts the mounting surface.
Tighten filter by hand an additional 1/2 turn only.
4. Bleed the fuel system.
(Refer to "Bleeding Fuel System".)
(1) Fuel Filter [A] M100X, M110X
[B] M126X, M135X
9Y1210269GEG0038US0
G-32 (NA)
KiSC issued 04, 2009 A
--- Page 8 ---
M100X, M110X, M126X, M135X, WSM GENERAL
Replacing Fuse
1. The tractor electrical system is protected from potential damage
by fuses.
2. A blown fuse indicates that there is an overload or short
somewhere in the electrical system.
3. If any of the fuses should blow, replace with a new one of the
same capacity.
IMPORTANT
• Before replacing a blown fuse, determine why the fuse blew
and make any necessary repairs. Failure to follow this
procedure may result in serious damage to the tractor
electrical system.
[A] M100X, M110X [B] M126X, M135X
(To be continued)
G-42 (NA)
KiSC issued 04, 2009 A
--- Page 9 ---
M100X, M110X, M126X, M135X, WSM GENERAL
(Continued)
4.000 to 4.018 mm dia., 6 mm depth
A 65 mm dia. (2.559 in. dia.) Z
(0.1575 to 0.1582 in. dia., 0.236 in. depth)
B 54.8 to 54.9 mm dia. (2.158 to 2.161 in.) a 2 × 8 mm dia. (2 × 0.315 in. dia.)
C 1.5 mm (0.0591 in.) b 35 mm dia. (1.378 in. dia.)
D 0.523 rad (30 °) c 9 mm (0.354 in.)
E 1.2 mm (0.0472 in.) d 16.06 mm (0.0323 in.)
F 20 mm (0.7874 in.) e 5 mm (0.197 in.)
G 85 mm (3.346 in.) f 5 mm (0.197 in.)
H 34.9 to 35.0 mm dia. (1.3741 to 1.3779 in. dia.) g 18.2 mm (0.7165 in.)
I 120 mm (4.724 in.) h 4.99 mm (0.1965 in.)
J 157.5 mm (6.201 in.) i 34.43 mm (1.3565 in.)
K 8 mm (0.315 in.) j 25.26 mm (0.9945 in.)
L 29.5 mm (1.161 in.) k 5 mm (0.197 in.)
M 1.5 mm (0.0591 in.) l 9.5 mm (0.3740 in.)
N 15.86 to 16.26 mm (0.6244 to 0.6401 in.) m 11 mm (0.4331 in.)
O 2 × 8.2 mm dia. (2 × 0.323 in. dia.) n 5 mm (0.197 in.)
P 34.23 to 34.63 mm dia. (1.348 to 1.363 in. dia.) o 16 mm (0.6299 in.)
Q 25.06 to 25.46 mm (0.9867 to 1.002 in.) p 26 mm (1.024 in.)
R 28.19 to 28.59 mm (1.110 to 1.125 in.) q 28.39 mm (1.1177 in.)
S 18.2 mm (0.7165 in.) r 35 mm (1.378 in.)
T 16 mm (0.6299 in.) s 48.5 mm (1.9094 in.)
U 29.3 to 29.4 mm (1.154 to 1.157 in.) t 48.5 mm (1.9094 in.)
V 9.5 mm (0.3740 in.) u 27 mm (1.063 in.)
W 4.99 mm (0.1965 in.) v 5 mm (0.197 in.)
X 48.5 mm (1.9094 in.) C0.3 Chamfer 0.3 mm (0.012 in.)
Y 48.5 mm (1.9094 in.) C1 Chamfer 1.0 mm (0.0394 in.)
9Y1210269GEG0082US0
G-52 (NA)
KiSC issued 04, 2009 A
--- Page 10 ---
M100X, M110X, M126X, M135X, WSM GENERAL
NOTE
• Special tools for R134a refrigerant air conditioning system introduced below are available from DENSO
CO. LTD.
9Y1210269GEG0088US0
Air Conditioner Service Tool
Code No.
• DENSO 95048-00061
Application
• Use for charging, testing or discharging the air conditioning
system.
(1) Manifold Gauge Assembly (95048-10090)
(2) Charging Hose (Red : HI) (95948-10270)
(3) Charging Hose (Blue : LO) (95948-10280)
(4) Charging Hose (Green) (95948-10260)
(5) Can Tap Valve (95048-10150)
(6) T Joint (95048-10160)
(7) Quick Coupler (HI) (95048-10130)
(8) Quick Coupler (LO) (95048-10140)
(9) Service Valve Packing (95906-10310)
(10) Charging Hose Packing (95906-10300)
(11) Tool Case (95949-10610)
WSM000001GEG0042US0
Electric Gas Leak Tester
Code No.
• DENSO 95146-00060
Application
• Use for gas leak testing the air conditioning system.
WSM000001GEG0043US0
Vacuum Pump
Code No.
• DENSO 95046-00040 (AC220V)
• DENSO 95046-00050 (AC240V)
Application
• Use for evacuating the air conditioning system.
(1) Adaptor (For 134a) (2) Vacuum Pump
WSM000001GEG0044US0
Adaptor (For R134a)
Code No.
• DENSO 95048-10190 (AC220V)
• DENSO 95048-10200 (AC240V)
Application
• Use for evacuating the air conditioning system.
WSM000001GEG0045US0
G-62 (NA)
KiSC issued 04, 2009 A
--- Page 11 ---
M100X, M110X, M126X, M135X, WSM GENERAL
(2) Rear Wheel
Adjusting Rear Tread
Rear tread width can be adjusted as shown with the standard
equipped tires.
To change the tread width.
1. Remove the wheel rim and / or disk mounting bolts.
2. Change the position of the rim and / or disk (right and left) to the
desired position, and tighten the bolts.
IMPORTANT
• Always attach tires as shown in the drawings.
• If not attached as illustrated, transmission parts may be
damaged.
• When re-fitting or adjusting a wheel, tighten the bolts to the
following torques then recheck after driving the tractor 200
m (200 yards) and thereafter according to service interval.
Refer to "Check Wheel Mounting Nuts Tightening Torque"
(See page G-20).
(1) Rim Disk Nut (2) Wheel Nut
9Y1210269GEG0103US0
[Steel Disc]
Tread (a) (A) (B) (C) (D) (E) (F)
18.4R30
18.4R34 1500 mm 1600 mm 1705 mm 1805 mm 1905 mm 2005 mm
18.4 – 34 59.0 in. 63.0 in. 67.2 in. 71.1 in. 75.0 in. 79.0 in.
16.9 – 34
(1) Rear Wheel Disc (2) Rear Wheel Rim a : Tread
9Y1210269GEG0104US0
G-72 (NA)
KiSC issued 04, 2009 A
--- Page 12 ---
MECHANISM
CONTENTS
1. FEATURE ................................................................................................................................... 1-M1
2. ENGINE BODY........................................................................................................................... 1-M2
[1] CYLINDER BLOCK .............................................................................................................. 1-M2
(1) V3800-CR-TI .................................................................................................................. 1-M2
(2) V6108-CR-TI .................................................................................................................. 1-M3
[2] CENTER DIRECT INJECTION SYSTEM (E-CDIS) ............................................................. 1-M4
[3] PISTON ................................................................................................................................ 1-M4
[4] BALANCER .......................................................................................................................... 1-M4
3. LUBRICATING SYSTEM............................................................................................................ 1-M5
[1] OIL COOLER........................................................................................................................ 1-M5
4. COOLING SYSTEM ................................................................................................................... 1-M6
[1] THERMOSTAT ..................................................................................................................... 1-M6
[2] BOTTOM BYPASS SYSTEM ............................................................................................... 1-M8
5. INTAKE AND EXHAUST SYSTEM ............................................................................................ 1-M9
6. COMMON RAIL SYSTEM (CRS) ............................................................................................. 1-M10
[1] GENERAL [V3800-CR-TI] .................................................................................................. 1-M10
[2] GENERAL [V6108-CR-TI] .................................................................................................. 1-M12
(1) Fuel System.................................................................................................................. 1-M12
[3] SUPPLY PUMP .................................................................................................................. 1-M14
[4] RAIL.................................................................................................................................... 1-M17
[5] INJECTOR.......................................................................................................................... 1-M18
[6] ENGINE CONTROL SYSTEM ........................................................................................... 1-M22
(1) Engine Control System Diagram .................................................................................. 1-M22
(2) Engine ECU (Electronic Control Unit)........................................................................... 1-M23
(3) Sensors ........................................................................................................................ 1-M24
7. EXHAUST GAS RECIRCULATION (EGR) SYSTEM............................................................... 1-M29
[1] GENERAL .......................................................................................................................... 1-M29
[2] EGR VALVE ....................................................................................................................... 1-M30
[3] REED VALVE ..................................................................................................................... 1-M31
KiSC issued 04, 2009 A
--- Page 13 ---
M100X, M110X, M126X, M135X, WSM ENGINE
6. COMMON RAIL SYSTEM (CRS)
[1] GENERAL [V3800-CR-TI]
(1) Injector
(2) Rail
(3) Supply Pump
(4) Sensors
(5) Engine ECU
The common rail system adopted for the V3800-CR-TI is the combustion system which always controls the
combustion state in cylinders optimally, by storing ultra high pressure fuel in the rail and performing ultra high pressure
injection by the diesel engine. It has excellent combustion efficiency and realizes clean exhaust gas as well as low
fuel consumption. It comprises the supply pump, the rail, the injectors, and the sensors that detects its operating state.
9Y1210269ENM0038US0
1-M10 (NA)
KiSC issued 04, 2009 A
--- Page 14 ---
M100X, M110X, M126X, M135X, WSM ENGINE
Injector Actuation Circuit
In order to improve injector responsiveness, the
actuation voltage has been changed to high voltage,
speeding up both solenoid magnetization and the
response of the TWV. The charge circuit in the engine
ECU (5) raises each battery voltage to approximately
110 V, which is supplied to the injector (1) by signal from
the engine ECU (5) to actuate the injector (1).
(1) Injector (4) Control Circuit
(2) Constant Amperage Circuit (5) Engine ECU
(3) High Voltage Generation
Circuit
9Y1210269ENM0023US0
Injector with QR Codes
QR (Quick Response) codes have been adopted to
enhance correction precision. The QR code (1), which
contains the correction data of the injector, is written to
the engine ECU. QR codes have resulted in a substantial
increase in the number of fuel injection quantity
correction points, greatly improving injection quantity
precision. In addition to injection quantity correction
data, the QR code (1) contains the part number and the
product number, which can be read at extremely high
speeds.
(1) QR Code (2) ID Code
9Y1210269ENM0024US0
1-M20 (NA)
KiSC issued 04, 2009 A
--- Page 15 ---
M100X, M110X, M126X, M135X, WSM ENGINE
[2] EGR VALVE