In this workshop manual, the primary more functions and changes of M6040 and M7040Narrow
tractor from M6040 and M7040 tractor are given.
As for the items which are not given in this workshop manual, refer to M6040 and M7040 workshop
manual (Code No. 9Y121-01430).
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.
Since this manual includes many models, information or illustrations and photographs can show
• 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.
• Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
• Indicates a potentially hazardous situation 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.
WSM000001INI0010US1
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.
WSM000001INI0015US0
NI-1
M6040, M7040Narrow, WSM
KiSC issued 07, 2012 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 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.
WSM000001INI0012US1
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.
WSM000001INI0005US1
NI-2
M6040, M7040Narrow, WSM
KiSC issued 07, 2012 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.
WSM000001INI0006US1
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.
WSM000001INI0007US1
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.
WSM000001INI0008US1
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.
WSM000001INI0009US1
NI-3
M6040, M7040Narrow, WSM
KiSC issued 07, 2012 A
INFORMATION
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
ROPS Model
9Y1210220INI0002US0
NI-4
M6040, M7040Narrow, WSM
KiSC issued 07, 2012 A
INFORMATION
9Y1210220INI0003US0
NI-5
M6040, M7040Narrow, WSM
KiSC issued 07, 2012 A
INFORMATION
9Y1210220INI0004US0
NI-6
M6040, M7040Narrow, WSM
KiSC issued 07, 2012 A
CABIN Model (M7040Narrow)
INFORMATION
9Y1210220INI0005US0
NI-7
M6040, M7040Narrow, WSM
KiSC issued 07, 2012 A
INFORMATION
9Y1210220INI0006US0
NI-8
M6040, M7040Narrow, WSM
KiSC issued 07, 2012 A
INFORMATION
9Y1210220INI0007US0
NI-9
M6040, M7040Narrow, WSM
NOTE
KiSC issued 07, 2012 A
3. SPECIFICATIONS
INFORMATION
Model
M6040Narrow (ROPS Model)M7040Narrow (ROPS Model)
4WD
ModelV3307DI-TE3
TypeVertical, water-cooled, 4-cycle direct injection diesel engine
Number of cylinders4
3
Total displacement3331 cm
(203 cu.in.)
Bore and stroke94 × 120 mm (3.7 × 4.7 in.)
-1
(rpm)
232 N·m (23.7 kgf·m, 171 lbf·ft) /
1500 to 1700 min-1 (rpm)
Engine
Rated speed2600 min
Net power
PTO power
*1
*1
Maximum torque
46.2 kW (62.0 HP)50.7 kW (68.0 HP)
41.0 kW (55.0 HP)46.2 kW (62.0 HP)
213 N·m (21.7 kgf·m, 157 lbf·ft) /
1500 to 1700 min
-1
(rpm)
Battery capacity12 V, RC : 160 min, CCA : 900 A
FuelDiesel fuel No. 1 [below −10 °C (14 °F], Diesel fuel No. 2-D [above −10 °C (14 °F)]
Fuel tank capacity60 L (15.9 U.S.gals, 13.2 Imp.gals)
Engine oil capacity11 L (11.6 U.S.qts, 9.7 Imp.qts)
Coolant capacity8 L (8.5 U.S.qts, 7.0 Imp.qts)
Overall length3615 mm (142.3 in.)
Overall width (min. tread)1400 mm (55.12 in.)
Top of
Overall height
Dimensions
steering
wheel
1470 mm (57.87 in.)
Wheel base2050 mm (80.7 in.)
Tread
Front1139, 1155 mm (44.84, 45.47 in.)
Rear1060 to 1348 mm (41.74 to 53.07 in.)
Minimum ground clearance370 mm (14.6 in.) (Drawbar bracket)
Weight2255 kg (4971 lbs)
Standard tire
size
Front280/70R18
Rear380/70R28
ClutchMultiple wet discs
ShuttleHydraulic
Traveling
system
Number of speedF15/R15
SteeringHydraulic power steering
Braking
system
Differential
TravelingHydraulic wet discs mechanical
FrontBevel gears
RearBevel gears with differential lock
Hydraulic control systemPosition, draft (top link sensing) and mix control
Pump capacity61 L (16 U.S.gals, 13 Imp.gals) / min
When contacting your local KUBOTA distributor, always specify
engine serial number, tractor serial number and hourmeter reading.
(1) Tractor Identification Plate
(2) Tractor Serial Number
(3) Engine Serial Number
GENERAL
(4) ROPS Identification Plate
(ROPS Serial Number)
9Y1210220GEG0002US0
NG-1
M6040, M7040Narrow, WSM
KiSC issued 07, 2012 A
(2) CABIN Model
GENERAL
When contacting your local KUBOTA distributor, always specify
engine serial number, tractor serial number and hourmeter reading.
(1) Tractor Identification Plate
(2) Tractor Serial Number
(3) Engine Serial Number
(4) CAB Identification Plate
(CAB Serial Number)
9Y1210220GEG0003US0
NG-2
M6040, M7040Narrow, WSM
KiSC issued 07, 2012 A
GENERAL
[2] E3 ENGINE
[Example : Engine Model Name V3307-DI-T-E3]
The emission controls previously implemented in various countries to prevent air pollution will be stepped up as
Non-Road Emission Standards continue to change. The timing or applicable date of the specific Non-Road 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 Non-Road Emission regulations. For Kubota Engines, E3 will be the designation that
identifies engine models affected by the next emission phase (See the table below).
When servicing or repairing ###-E3 series engines, use only replacement parts for that specific E3 engine,
designated by the appropriate E3 Kubota Parts List and perform all maintenance services listed in the appropriate
Kubota Operator's Manual or in the appropriate E3 Kubota Workshop Manual. Use of incorrect replacement parts or
replacement parts from other emission level engines (for example: E2 engines), may result in emission levels out of
compliance with the original E3 design and EPA or other applicable regulations.Please refer to the emission label
located on the engine head cover to identify Output classification and Emission Control Information. E3 engines are
identified with "ET" at the end of the Model designation, on the US EPA label. Please note : E3 is not marked on the
engine.
(1) EU regulation engine output classification category
(2) "E3" engines are identified with "ET" at the end of the Model designation, on
the US EPA label.
"E3" designates Tier 3 and some Interim Tier 4 / Tier 4 models, depending on
engine output classification.
From 19 to less than 56 kWInterim Tier 4
From 56 to less than 75 kWTier 3
From 75 to less than 130 kWTier 3
9Y1210220GEG0005US0
NG-3
M6040, M7040Narrow, WSM
KiSC issued 07, 2012 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.
(1) Grease
(2) Force
(3) Sharp Edge
(4) Axial Force
(5) Rotating Movement
GENERAL
(A) External Snap Ring
(B) Internal Snap Ring
WSM000001GEG0092US0
NG-4
M6040, M7040Narrow, WSM
IMPORTANT
KiSC issued 07, 2012 A
GENERAL
3. HANDLING 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.
• 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.
(1) Negative Terminal(2) Positive Terminal
WSM000001GEG0062US1
[1] WIRING
• Securely tighten wiring terminals.
(1) Correct
(Securely Tighten)
(2) Incorrect
(Loosening Leads to Faulty Contact)
WSM000001GEG0063US1
• Do not let wiring contact dangerous part.
(1) Dangerous Part (Sharp Edge)
(2) Wiring (Incorrect)
(3) Wiring (Correct)
(4) Dangerous Part
WSM000001GEG0064US1
• Repair or change torn or aged wiring immediately.
(1) Aged
(2) Torn
(3) Insulating Vinyl Tape
WSM000001GEG0065US1
NG-5
M6040, M7040Narrow, WSM
KiSC issued 07, 2012 A
GENERAL
• Securely insert grommet.
(1) Grommet(A) Correct
(B) Incorrect
WSM000001GEG0066US1
• Securely clamp, being careful not to damage wiring.
(1) Clamp
(Wind Clamp Spirally)
(2) Wire Harness
(3) Clamp
(4) Welding Dent
WSM000001GEG0067US1
• 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
WSM000001GEG0068US1
• In installing a part, take care not to get wiring caught by it.
(1) Wiring(A) Incorrect
WSM000001GEG0069US1
• After installing wiring, check protection of terminals and
clamped condition of wiring, only connect battery.
(1) Cover
(Securely Install Cover)
WSM000001GEG0070US1
NG-6
M6040, M7040Narrow, WSM
CAUTION
KiSC issued 07, 2012 A
[2] BATTERY
GENERAL
• Take care not to confuse positive and negative terminal posts.
• When removing battery cables, disconnect negative cable first.
When installing battery cables, check for polarity and connect
positive cable first.
• Do not install any battery with capacity other than is specified
(Ah).
• After connecting cables to battery 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.
• Take care not to let battery liquid spill on your skin and
clothes. If contaminated, wash it off with water
immediately.
• Before recharging the battery, remove it from the machine.
• Before recharging, remove cell caps.
• Do recharging in a well-ventilated place where there is no
open flame nearby, as hydrogen gas and oxygen are
formed.
WSM000001GEG0071US1
[3] FUSE
[4] CONNECTOR
• Use fuses with specified capacity.
Neither too large or small capacity fuse is acceptable.
• Never use steel or 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
WSM000001GEG0072US1
• For connector with lock, push lock to separate.
(A) Push
WSM000001GEG0073US1
• In separating connectors, do not pull wire harnesses.
• Hold connector bodies to separate.
(A) Correct(B) Incorrect
WSM000001GEG0074US1
NG-7
M6040, M7040Narrow, WSM
KiSC issued 07, 2012 A
GENERAL
• Use sandpaper to remove rust from terminals.
• Repair deformed terminal. Make certain there is no terminal
being exposed or displaced.
(1) Exposed Terminal
(2) Deformed Terminal
(3) Sandpaper
(4) Rust
WSM000001GEG0075US1
• Make certain that there is no female connector being too open.
(A) Correct(B) Incorrect
WSM000001GEG0076US1
• Make certain plastic cover is large enough to cover whole
connector.
(1) Cover(A) Correct
(B) Incorrect
WSM000001GEG0077US1
[5] HANDLING OF CIRCUIT TESTER
• Use tester correctly following manual provided with tester.
• Check for polarity and range.
WSM000001GEG0078US1
NG-8
M6040, M7040Narrow, WSM
KiSC issued 07, 2012 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 wiringColor code
BlackB
BrownBr
GreenG
GrayGy or Gr
BlueL
Light GreenLg
OrangeOr
PinkP
PurplePu or V
RedR
Sky BlueSb
WhiteW
YellowY
(1) Wire Color(2) Stripe
WSM000001GEG0079US0
NG-9
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