Kubota M6800S Instruction manual

WORKSHOP MANUAL
TRACTOR
M6800,M6800S,
M8200,M9000
KiSC issued 03, 2008 A

TO THE READER
This Workshop Manual has been prepared to provide servicing personnel with
information on the mechanism, service and maintenance of KUBOTA Tractors M6800,
M6800S, M8200 and M9000. It is divided into two parts, “Mechanism” and “Servicing”
for each section except “ENGINE” section.
QMechanism
Information on the constructuion and function are included. This part should be
understood before proceeding with troubleshooting, disassembling and servicing.
QServicing
Under the heading “General” section comes general precautions, check and
maintenance and special tools. Other section, there are troubleshooting, servicing
specification lists, checking andadjusting, 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.
August 2001
© KUBOTA Corporation 2001
KiSC issued 03, 2008 A

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M6800 · M6800S · M8200 · M9000, 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.
QIMPORTANT : Indicates that equipment or property damage could result if instructions are not
followed.
QNOTE : Gives helpful information.
KiSC issued 03, 2008 A

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M6800 · M6800S · M8200 · M9000, 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.
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.
KiSC issued 03, 2008 A

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M6800 · M6800S · M8200 · M9000, WSM SAFETY INSTRUCTIONS
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.
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.
KiSC issued 03, 2008 A

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M6800 · M6800S · M8200 · M9000, 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
KiSC issued 03, 2008 A

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M6800 · M6800S · M8200 · M9000, WSM SAFETY INSTRUCTIONS
KiSC issued 03, 2008 A

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M6800 · M6800S · M8200 · M9000, WSM SAFETY INSTRUCTIONS
KiSC issued 03, 2008 A

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M6800 · M6800S · M8200 · M9000, WSM SPECIFICATIONS
SPECIFICATIONS
Note : * Manufacture’s estimate
** At lower link and with links horizontal.
The company reserves the right to change the specifications without notice. W10281170
Model M6800 M6800S
2WD 4WD 2WD 4WD
Engine
Model V3300-E / V3300-E2
Type Vertical, water-cooled, 4-cycle diesel engine
Number of cylinders 4
Total displacement 3318 cm3(202.5 cu.in.)
Bore and stroke 98 ×110 mm (3.9 ×4.3 in.)
Net power 50.8 kW (68 HP)*
PTO power
(factory observe) 46.3 kW (62 HP)* / 2600 min−1(rpm)
Maximum torque 235 N·m (24.0 kgf·m, 173.3 ft-lbs) / 1300 to 1500 min−1(rpm)
Battery capacity 12 V, CCA : 1000 A
Fuel Diesel fuel No. 1 [below −10 °C (14 °F], Diesel fuel No. 2-D [above −10 °C (14 °F)]
Fuel tank capacity 65 L (17.2 U.S.gals., 14.3 Imp.gals.)
Engine oil capacity 10.7 L (11.3 U.S.qts., 9.4 Imp.qts.)
Coolant capacity 8.5 L (9.0 U.S.qts., 7.5 Imp.qts.)
Dimensions
Overall length 3530 mm (139.0 in.) 3420 mm (134.6 in.) 3560 mm (140.2 in.) 3525 mm (138.8 in.)
Overall width (min. tread) 1860 mm (73.2 in.)
Overall height
(with ROPS) 2450 mm (96.9 in.)
Wheel base 2050 mm (80.7 in.)
Tread Front 1420 to 1820 mm
(55.9 to 71.7 in.) 1420 to 1520 mm (55.9 to 59.8 in.) 1420 to 1820 mm (55.9 to 71.7 in.) 1420 to 1520 mm (55.9 to 59.8 in.)
Rear 1420 to 1720 mm (55.9 to 67.7 in.)
Minimum ground
clearance 430 mm (16.9 in.) (COVER TANK) 430 mm (16.9 in.) (BRACKET DRAWBAR)
Weight (with ROPS) 2030 kg (4475 lbs) 2090 kg (4608 lbs) 2030 kg (4475 lbs) 2090 kg (4608 lbs)
Travelling
system
Standard
tire size Front 9.5L-15, 7.5-16 9.5-24 9.5L-15, 7.5-16 9.5-24
Rear 16.9-30
Clutch Dry, single plate
Steering Hydrostatic power steering
Braking system Multiple wet disc mechanical
Differential Bevel gears with differential lock (Front, Rear)
Hydraulic
system
Hydraulic control system Position, draft and mix control
Pump capacity 41.3 L (43.6 U.S.qts., 36.3 Imp.qts.) / min. 38.3 L (40.5 U.S.qts., 33.7 Imp.qts.) / min.
Three point hitch SAE Category I& II
Max.
lifting
force
At lift points** 2050 kg (4520 lbs)
24 in. behind
lift points 1500 kg (3307 lbs)
Remote hydraulic control One remote valve
System pressure 19.1 MPa (195 kgf/cm2, 2775.4 psi)
PTO LivePTO (Indipen-
dent)
Direction of
turning Clockwise, viewed from tractor rear
Standard PTO
Fixed PTO shaft type with 1 speed : 540 min−1(rpm) at 2295 min−1(rpm)
Fixed PTO shaft type with 2 speeds : 540 min−1(rpm) at 2307 min−1(rpm)
1000 min−1(rpm) at 2471 min−1(rpm)
Fixed PTO shaft type with 2 speeds : 540 min−1(rpm) at 2307 min−1(rpm)
540E min−1(rpm) at 1828 min−1(rpm)
KiSC issued 03, 2008 A

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M6800 · M6800S · M8200 · M9000, WSM SPECIFICATIONS
Note : * Manufacture’s estimate
** At lower link and with links horizontal.
The company reserves the right to change the specifications without notice. W10319630
Model M8200 M9000
2WD 4WD 2WD 4WD
Engine
Model V3300-TE / V3300-TE2 V3300-TIE / V3300-TIE2
Type Vertical, water-cooled, 4-cycle diesel engine
Number of cylinders 4
Total displacement 3318 cm3(202.5 cu.in.)
Bore and stroke 98 ×110 mm (3.9 ×4.3 in.)
Net power 61.2 kW (82 HP)* 67.2 kW (90 HP)*
PTO power
(factory observe) 54.5 kW (73 HP)* / 2600 min−1(rpm) 59.7 kW (80 HP)* / 2600 min−1(rpm)
Maximum torque 285 N·m (29.1 kgf·m, 210.2 ft-lbs) /
1300 to 1500 min−1(rpm) 311 N·m (31.7 kgf·m, 229.4 ft-lbs) /
1400 to 1600 min−1(rpm)
Battery capacity 12 V, CCA : 1000 A
Fuel Diesel fuel No. 1 [below −10 °C (14 °F], Diesel fuel No. 2-D [above −10 °C (14 °F)]
Fuel tank capacity 90 L (23.8 U.S.gals., 19.8 Imp.gals.)
Engine oil capacity 10.7 L (11.3 U.S.qts., 9.4 Imp.qts.)
Coolant capacity 9.0 L (9.5 U.S.qts., 7.9 Imp.qts.)
Dimensions
Overall length 3915 mm (154.1 in.) 3800 mm (150.0 in.) 3915 mm (154.1 in.) 3800 mm (150.0 in.)
Overall width (min. tread) 1980 mm (78.0 in.)
Overall height
(with ROPS) 2475 mm (97.4 in.) 2500 mm (98.4 in.)
Wheel base 2250 mm (88.6 in.)
Tread Front 1440 to 2040 mm
(56.7 to 80.3 in.) 1420 to 1520 mm (55.9 to 59.8 in.) 1440 to 2040 mm (56.7 to 80.3 in.) 1520 to 1620 mm (59.8 to 63.8 in.)
Rear 1520 to 1920 mm (59.8 to 75.6 in.)
Minimum ground
clearance 430 mm (16.9 in.) (BRACKET DRAWBAR) 450 mm (17.7 in.) (BRACKET DRAWBAR)
Weight (with ROPS) 2270 kg (5004 lbs) 2470 kg (5445 lbs) 2310 kg (5093 lbs) 2530 kg (5578 lbs)
Travelling
system
Standard
tire size Front 7.5-18 11.2-24 7.5-18 12.4-24
Rear 18.4-28 18.4-30
Clutch Dry, single plate
Steering Full hydrostatic power steering
Braking system Multiple wet disc mechanical
Differential Bevel gears with differential lock (Front, Rear)
Hydraulic
system
Hydraulic control system Position, draft and mix control
Pump
capacity
Individualflow
type 41.3 L (43.6 U.S.qts., 36.3 Imp.qts.) / min.
Combine flow
type 64.3 L (67.9 U.S.qts., 56.6 Imp.qts.) / min.
Three point hitch SAE Category II
Max.
lifting
force
At lift points** Standard : 2500 kg (5560 lbs)
with assist cylinder : 3400 kg (7497 lbs)
24 in. behind
lift points Standard : 2100 kg (4630 lbs) with assist cylinder : 2900 kg (6395 lbs)
System pressure Individual flow type pump : 19.1 MPa (195 kgf/cm2, 2775.4 psi)
Combine flow type pump : 19.6 MPa (200 kgf/cm2, 2846.6 psi)
PTO LivePTO (Indipen-
dent)
Direction of
turning Clockwise, viewed from tractor rear
PTO / engine
speed
Fixed PTO shaft type with 1 speed : 540 min−1(rpm) at 2205 min−1(rpm)
Fixed PTO shaft type with 2 speeds : 540 min−1(rpm) at 2035 min−1(rpm)
540E min−1(rpm) at 1519 min−1(rpm)
Interchangeable PTO shaft type : 540 min−1(rpm) at 2035 min−1(rpm)
1000 min−1(rpm) at 2389 min−1(rpm)
KiSC issued 03, 2008 A

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M6800 · M6800S · M8200 · M9000, WSM DIMENSIONS
DIMENSIONS
KiSC issued 03, 2008 A

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M6800 · M6800S · M8200 · M9000, WSM DIMENSIONS
KiSC issued 03, 2008 A

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M6800 · M6800S · M8200 · M9000, WSM DIMENSIONS
KiSC issued 03, 2008 A

G GENERAL
KiSC issued 03, 2008 A

CONTENTS
GENERAL
1. FEATURES...................................................................................................... G-1
2. TRACTOR IDENTIFICATION ......................................................................... G-3
[1] MODEL NAME AND SERIAL NUMBERS.............................................. G-3
[2] E2 ENGINE............................................................................................... G-5
[3] CYLINDER NUMBER ............................................................................... G-5
3. GENERAL PRECAUTIONS............................................................................ G-6
4. HANDLING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING.. G-7
[1] WIRING...................................................................................................... G-7
[2] BATTERY................................................................................................... G-9
[3] FUSE.......................................................................................................... G-9
[4] CONNECTOR............................................................................................ G-9
[5] HANDLING OF CIRCUIT TESTER....................................................... G-10
5. LUBRICANTS FUEL AND COOLANT ........................................................ G-11
6. TIGHTENING TORQUES ............................................................................. G-13
[1] GENERAL USE SCREWS, BOLTS AND NUTS................................. G-13
[2] STUD BOLTS.......................................................................................... G-13
7. MAINTENANCE............................................................................................. G-14
8. 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-18
[4] CHECK POINTS OF EVERY 100 HOURS......................................... G-21
[5] CHECK POINTS OF EVERY 200 HOURS......................................... G-25
[6] CHECK POINTS OF EVERY 300 HOURS......................................... G-26
[7] CHECK POINTS OF EVERY 400 HOURS......................................... G-26
[8] CHECK POINTS OF EVERY 600 HOURS......................................... G-28
[9] CHECK POINTS OF EVERY 800 HOURS......................................... G-29
[10]CHECK POINTS OF EVERY 1 YEAR................................................ G-30
[11]CHECK POINTS OF EVERY 2 YEARS.............................................. G-30
[12]OTHERS .................................................................................................. G-32
9. SPECIAL TOOLS.......................................................................................... G-34
10. TIRES............................................................................................................. G-56
[1] TYPE OF TIRES.................................................................................... G-56
[2] TREAD ADJUSTMENT........................................................................... G-56
(1) Front Wheels [2WD]........................................................................... G-56
(2) Front Wheels [4WD]........................................................................... G-57
(3) Rear Wheels ......................................................................................G-57
[3] WHEEL HUB........................................................................................... G-58
[4] TIRE PRESSURE................................................................................... G-58
[5] TIRE LIQUID INJECTION...................................................................... G-59
11. IMPLEMENT LIMITATIONS.......................................................................... G-62
KiSC issued 03, 2008 A

G-1
M6800 · M6800S · M8200 · M9000, WSM G GENERAL
1. FEATURES
1. New Design
Full-open Hood and Flat Top Fender
2. Hydrostatic Power Steering
3. Synchro-Shuttle
Lo-Reverse [M6800]
Forward-Reverse [M6800S · M8200 · M9000]
4. Hydraulic Independent PTO
5. Foldable ROPS
6. New Transmission
[M6800]
- Main Shift : Partially Synchronized
- Forward 8 / Reverse 4 Speeds
- Forward 12 / Reverse 4 Speeds (with Creep, if equipped)
[M6800S · M8200 · M9000]
- Main Shift : Full Synchronized
- Forward 8 / Reverse 8 Speeds
- Forward 12 / Reverse 12 Speeds (with Creep, if equipped)
7. Semi-Flat Deck and Rubber Mounted Deck
8. Hanging Pedal
9. New E-TVCS Diesel Engine
Low Noise and Vibration
High Torque Rise
KiSC issued 03, 2008 A

G-2
M6800 · M6800S · M8200 · M9000, WSM G GENERAL
10.Wet Disc Brake
11.Three Point Hitch with Big Lift Power
12.Telescope Lower Link (M8200 · M9000)
13.Remote Valve
Self-Cancelling with Detents (Standard)
Flow Control Valve (Option)
Floating Valve with Detent (Option)
KiSC issued 03, 2008 A

G-3
M6800 · M6800S · M8200 · M9000, WSM G GENERAL
2. TRACTOR IDENTIFICATION
[1] MODEL NAME AND SERIAL NUMBERS
When contacting your local KUBOTA distributor, always specify
engine serial number, tractor serial number and hourmeter reading.
W1010800
(1) Tractor Identification Plate
(2) Tractor Serial Number (3) Engine Serial Number
KiSC issued 03, 2008 A

G-4
M6800 · M6800S · M8200 · M9000, WSM G GENERAL
Engine 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. V3300-YA0001
“Y” indicates 2000 and “A” indicates January.
So, YA indicates that the engine was manufactured on January,
2000.
W1010477
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
E 2014
Month Engine Serial 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 03, 2008 A

G-5
M6800 · M6800S · M8200 · M9000, WSM G GENERAL
[2] E2 ENGINE
[ex.: Model Name V3300-E2]
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 Tier 2 / Phase 2
requirements, we have adopted E2 as a new model name for the
engines conforming Tier 2 / Phase 2 regulations with emission label
(1) or (2).
In the after-sale services for V3300-E2, V3300-TE2 and V3300-
TIE2 series engines, only use the dedicated parts for E2 models and
carry out the maintenance services accordingly.
W1113734
[3] CYLINDER NUMBER
The cylinder numbers of V3300-E2, V3300-TE2 and V3300-TIE2
diesel engine are 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 gear case side.
W1011077
(1) Emission Label for EPA (2) Emission Label for EC
KiSC issued 03, 2008 A