wsm RTV-X1120D, RTV-X900 Workshop Manual

WORKSHOP MANUAL

KiSC issued 01, 2014 A

UTILITY VEHICLE

RTV-X900,RTV-X1120D

TO THE READER

KiSC issued 01, 2014 A

This Workshop Manual tells the servicing personnel about the mechanism, servicing and

maintenance of the RTV-X900, RTV-X1120D. 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) for the diesel engine 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

more than one model.

October, 2013

© KUBOTA Corporation 2013

Record of Revisions

KiSC issued 01, 2014 A

For pdf, use search function {Search word} to find all the revised locations.

Last digit

of the

Code No.

Issue

month

Main Revised Point and Corrective Measures {Search word}

1 2014.01 Correction of charge pressure. 2-M7,

Add the disassembling HST. 2-S44

Change the engine cable length. 2-S13

Correction of hydraulic pump displacement. 7-M5

Correction of the part name. 8-S28

Reference

Page

2-M12,

2-S4,
2-S6,
7-M4

I INFORMATION

KiSC issued 01, 2014 A

INFORMATION

KiSC issued 01, 2014 A

CONTENTS

1. SAFETY FIRST .............................................................................................................................. I-1

2. SAFETY DECALS .......................................................................................................................... I-4

3. SPECIFICATIONS........................................................................................................................ I-10

4. TRAVELLING SPEEDS................................................................................................................ I-11

5. DIMENSIONS ............................................................................................................................... I-12

RTV-X900, RTV-X1120D, WSM

SAFETY FIRST

DANGER

WARNING

CAUTION

IMPORTANT

NOTE

KiSC issued 01, 2014 A

INFORMATION

1. 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 try 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.

WSM000001INI0010US0

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.

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I-1

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 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 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.

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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

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 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 extinguisher ready at all
times.

• Keep the emergency contact telephone numbers
near your telephone at all times.

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I-3

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 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.

WSM000001INI0013US0

9Y1210946INI0001US0

I-4

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

INFORMATION

9Y1210946INI0002US0

I-5

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

INFORMATION

9Y1210946INI0003US0

I-6

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

INFORMATION

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I-7

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

INFORMATION

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I-8

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

INFORMATION

9Y1210946INI0006US0

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.

9Y1210946INI0007US0

I-9

RTV-X900, RTV-X1120D, WSM

NOTE

KiSC issued 01, 2014 A

INFORMATION

3. SPECIFICATIONS

RTV-X900 RTV-X1120D

Model

Make D902 D1105

Type 3 cylinders, 4-cycle, diesel, OHV

Engine

Fuel Capacity 30 L (7.9 U.S.gals, 6.6 Imp.gals)

Transmission Continuously variable hydro transmission (VHT)

Wheels, Drive system 4, Rear 2WD or 4WD

Differential lock Standard; foot operated with mechanical holder

Gear selection Hi-Low range forward, neutral, reverse

Brakes

Steering Hydrostatic power

Suspension

Dimensions

Max. Rolling weight (Towing capacity) Rear: 590 kg (1300 lbs), Front: 295 kg (650 lbs)

Payload capacity

Weight

Gross Vehicle Weight Rating (GVWR) 1620 kg (3571 lbs)

Cargo bed

Sound level, operator ear 85 db (A) 84 db (A)

Tire

Tilt steering wheel – Standard

Seat belt 2 point type 3 point type

Front deluxe guard – Standard Standard – –

Front deluxe guard with light guard – – – Standard Standard

Body color Orange Orange Camo Orange Camo

Bed lift – Standard Standard Standard Standard

Speedometer Standard Standard Standard Standard Standard

Door – – – Standard Standard

Seat slide – Standard Standard Standard Standard

Displacement 0.898 L (54.802 cu. in.) 1.123 L (68.530 cu. in.)

Horsepower 16.1 kw (21.6 HP) 18.5 kw (24.8 HP)

Rated revolution 3200 min

Low idling revolution 1300 to 1400 min

Front / Rear Wet disk brake

Parking brake Rear wheel, hand lever

Front

Rear

Length

Width 1605 mm (63.2 in.)

Height, overall 2020 mm (79.5 in.)

Front tread centers

Rear tread centers

Wheelbase 2045 mm (80.5 in.)

Ground
clearance

Turning diameter 8.0 m (26.2 ft)

Width 1465 mm (57.7 in.)

Length 1030 mm (40.5 in.)

Depth 285 mm (11.2 in.)

Volume 0.43 m

Bed height (unloaded) 887 mm (34.9 in.)

Cargo bed capacity 500 kg (1102 lbs)

Front

Rear

front axle 266 mm (10.5 in.)

rear axle 263 mm (10.4 in.)

General

Purpose

3055 mm

(120.3 in.)

755 kg

(1664 lbs)

865 kg

(1907 lbs)

25 × 10-12 ATV, 6PLY, 25 × 10-12 HDWS, 6PLY

25 × 10-12 ATV, 6PLY, 25 × 10-12 HDWS, 6PLY

Worksite /

Orange

-1

(rpm) 3000 min-1 (rpm)

-1

Independent, Dual A-Arm type

1240 mm (48.8 in.) HDWS, ATV, 1290 mm (50.8 in.) Turf

725 kg (1598 lbs) 685 kg (1510 lbs)

895 kg (1973 lbs) 935 kg (2061 lbs)

25 × 12-12 Turf, 4PLY

25 × 12-12 Turf, 4PLY

Worksite /

Camo

(rpm) 1350 to 1450 min-1 (rpm)

3110 mm (122.5 in.)

3

(15.2 cu.ft.)

Worksite /

Orange

25 × 10-12 ATV, 6PLY,

25 × 10-12 HDWS, 6PLY

25 × 10-12 ATV, 6PLY

25 × 10-12 HDWS, 6PLY

Worksite /

Camo

• The company reserves the right to change the specifications without notice.

• The values in "Ground clearance" and "Weight" are those of the machine equipped with the tires in the table above.

9Y1210946INI0008US0

I-10

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

4. TRAVELLING SPEEDS

Model RTV-X900 RTV-X1120D

Range gear shift lever km/h (mph) km/h (mph)

Low 24 (15) 25 (16)

High 40 (25) 46 (29)

Reverse 27 (17) 35 (22)

INFORMATION

(At rated engine rpm)

9Y1210946INI0009US0

I-11

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

5. DIMENSIONS

RTV-X900

INFORMATION

9Y1210946INI0010US0

I-12

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

RTV-X1120D

INFORMATION

9Y1210946INI0011US0

I-13

G GENERAL

KiSC issued 01, 2014 A

GENERAL

KiSC issued 01, 2014 A

CONTENTS

1. PRODUCT IDENTIFICATION ...................................................................................................... G-1

2. GENERAL PRECAUTIONS.......................................................................................................... G-2

3. HANDLING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING .................................... G-3

[1] WIRING .................................................................................................................................. G-3

[2] BATTERY ............................................................................................................................... G-5

[3] FUSE ...................................................................................................................................... G-5

[4] CONNECTOR ........................................................................................................................ G-5

[5] HANDLING OF CIRCUIT TESTER ........................................................................................ G-6

[6] COLOR OF WIRING ..............................................................................................................G-7

4. LUBRICANTS, FUEL AND COOLANT......................................................................................... G-8

5. TIGHTENING TORQUES ........................................................................................................... G-12

[1] GENERAL USE SCREWS, BOLTS AND NUTS .................................................................. G-12

[2] STUD BOLTS ....................................................................................................................... G-12

[3] HYDRAULIC FITTINGS ....................................................................................................... G-13

(1) Hydraulic Hose Fittings................................................................................................... G-13

(2) Hydraulic Pipe Cap Nuts ................................................................................................ G-13

(3) Adaptors, Elbows and Others......................................................................................... G-13

[4] METRIC SCREWS, BOLTS AND NUTS .............................................................................. G-14

[5] AMERICAN STANDARD SCREWS, BOLTS AND NUTS WITH UNC OR UNF

THREADS ............................................................................................................................ G-14

[6] PLUGS ................................................................................................................................. G-14

6. MAINTENANCE CHECK LIST ................................................................................................... G-15

7. CHECK AND MAINTENANCE ................................................................................................... G-17

[1] DAILY CHECK...................................................................................................................... G-17

[2] CHECK POINTS OF INITIAL 50 HOURS ............................................................................ G-24

[3] CHECK POINTS OF EVERY 50 HOURS ............................................................................ G-30

[4] CHECK POINTS OF EVERY 100 HOURS .......................................................................... G-33

[5] CHECK POINTS OF EVERY 200 HOURS .......................................................................... G-39

[6] CHECK POINT OF EVERY 300 HOURS ............................................................................. G-47

[7] CHECK POINTS OF EVERY 400 HOURS .......................................................................... G-48

[8] CHECK POINT OF EVERY 500 HOURS ............................................................................. G-49

[9] CHECK POINT OF EVERY 800 HOURS ............................................................................. G-49

[10]CHECK POINT OF EVERY 1500 HOURS ........................................................................... G-49

[11]CHECK POINT OF EVERY 3000 HOURS ........................................................................... G-49

-49

[12]CHECK POINT OF EVERY 1 YEAR ....................................................................................

[13]CHECK POINTS OF EVERY 2 YEARS ............................................................................... G-50

[14]CHECK POINT OF EVERY 4 YEARS.................................................................................. G-53

[15]OTHERS............................................................................................................................... G-54

8. SPECIAL TOOLS ....................................................................................................................... G-57

[1] SPECIAL TOOLS FOR ENGINE .......................................................................................... G-57

(1) General........................................................................................................................... G-57

(2) RTV-X900....................................................................................................................... G-61

(3) RTV-X1120D .................................................................................................................. G-63

[2] SPECIAL TOOLS FOR MACHINE ....................................................................................... G-66

9. TIRES ......................................................................................................................................... G-72

[1] TYPE OF TIRES................................................................................................................... G-72

[2] TYPE PRESSURE ............................................................................................................... G-73

[3] VEHICLE LIMITATIONS....................................................................................................... G-74

[4] CARGO BED ........................................................................................................................ G-75

G

[5] SHOCK ABSORBERS.......................................................................................................... G-77

KiSC issued 01, 2014 A

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

1. PRODUCT IDENTIFICATION

When contacting your local KUBOTA distributor, always specify
engine serial number, product serial number and hour meter
reading.

(1) Vehicle Identification Plate
(2) Product Identification Number
(3) ROPS Serial Number
(4) Engine Serial Number
(5) Transmission Assembly Serial

Number

GENERAL

[A] RTV-X900
[B] RTV-X1120D

9Y1210946GEG0001US0

G-1

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 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 let 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-2

RTV-X900, RTV-X1120D, WSM

IMPORTANT

KiSC issued 01, 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 negative
cable first. When installing the battery cables, connect the
positive cable first.

(1) Negative Terminal (2) Positive Terminal

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[1] WIRING

• Securely tighten wiring terminals.

(1) Correct

(Securely Tighten)

(2) Incorrect

(Loosening Leads to Faulty Contact)

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• Do not let wiring contact dangerous part.

(1) Dangerous Part (Sharp Edge)
(2) Wiring (Incorrect)

(3) Wiring (Correct)
(4) Dangerous Part

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• Repair or change torn or aged wiring immediately.

(1) Aged
(2) Torn

(3) Insulating Vinyl Tape

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G-3

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

GENERAL

• Securely insert grommet.

(1) Grommet (A) Correct

(B) Incorrect

WSM000001GEG0066US0

• Securely clamp, being careful not to damage wiring.

(1) Clamp

(Wind Clamp Spirally)

(2) Wire Harness

(3) Clamp
(4) Welding Dent

WSM000001GEG0067US0

• 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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• After installing wiring, check protection of terminals and
clamped condition of wiring.

(1) Cover

(Securely Install Cover)

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G-4

RTV-X900, RTV-X1120D, WSM

CAUTION

KiSC issued 01, 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 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.

• 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

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• 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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G-5

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 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] HANDLING OF CIRCUIT TESTER

• Use tester correctly following manual provided with tester.

• Check for polarity and range.

WSM000001GEG0078US0

G-6

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 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

Yell ow Y

(1) Wire Color (2) Stripe

WSM000001GEG0079US0

G-7

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

4. LUBRICANTS, FUEL AND COOLANT

GENERAL

No. Place

1Fuel

Coolant

2

(with reserve tank)

Engine

3

crankcase

4 Transmission case

5 Front axle case

6 Front knuckle case

Brake fluid

7

(reservoir and lines)

8 Hydraulic tank oil

Filter
exchanged

Filter
non-ex­changed

Capacity

RTV-X900 RTV-X1120D

30 L

7.9 U.S.gals

6.6 Imp.gals

6.1 L

6.4 U.S.qts

5.4 Imp.qts

3.1 L

3.3 U.S.qts

2.7 Imp.qts

2.7 L

2.9 U.S.qts

2.4 Imp.qts

7.0 L

1.8 U.S.gals

1.5 Imp.gals

0.6 L

0.6 U.S.qts

0.52 Imp.qts

(Reference)

0.25 L

0.26 U.S.qts

0.22 Imp.qts

0.4 L

0.4 U.S.qts

0.35 Imp.qts

18.0 L

19.0 U.S.qts

15.8 Imp.qts

4.1 L

4.3 U.S.qts

3.6 Imp.qts

3.8 L

4.0 U.S.qts

3.3 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

API Service Classification CF or
higher

• Above 25 °C (77 °F)
SAE30, SAE10W-30 or 15W-40

• 0 to 25 °C (32 to 77 °F)
SAE20, SAE10W-30 or 15W-40

• Below 0 °C (32 °F)
SAE10W, SAE10W-30

KUBOTA UDT or SUPER UDT fluid*

KUBOTA UDT or SUPER UDT fluid*

KUBOTA UDT or SUPER UDT fluid*

KUBOTA DOT3 GENUINE BRAKE
FLUID

KUBOTA UDT or SUPER UDT fluid*

G-8

RTV-X900, RTV-X1120D, WSM

NOTE

KiSC issued 01, 2014 A

Greasing

No. Place No. of greasing point Capacity Type of grease

Parking brake lever 2

moderate amount

Battery terminal 2

Cargo lift cylinder pivot 1 Until grease overflows

Cargo bed pivot 2 moderate amount

2 Until grease overflows

VHT link

1

Valve lever link 1

4WD lever link 1

9

moderate amount

Multipurpose EP2 Grease
(NLGI Grade No. 2)

Range gear shift link 1

Unload link 1

Differential lock pedal 2

Front A-ARM 6

Until grease overflows

Rear A-ARM 8

Parking brake link 1

Hand throttle cable
[if equipped]

– Antirust silicone grease

moderate amount

GENERAL

• *KUBOTA UDT or SUPER UDT fluid - KUBOTA original transmission hydraulic fluid

9Y1210946GEG0002US0

G-9

RTV-X900, RTV-X1120D, WSM

NOTE

KiSC issued 01, 2014 A

GENERAL

For North American market

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 vehicle.

except external EGR With external EGR

Model RTV-X900, RTV-X1120D —

Fuel

• Cetane number of 45 is 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 heavy mobile service. (SAE J313
JUN87)

Transmission oil

• To complete lubrication of the transmission, it is important that a multi-grade transmission fluid is used
in this system.
We recommend the use of KUBOTA UDT or SUPER UDT fluid for optimum protection and performance.
Do not mix different brands together.

Hydraulic tank oil:

• To insure proper operation of the hydraulic and VHT system, it is important that a multi-grade
transmission fluid is used in this system. We recommend the use of KUBOTA UDT or SUPER UDT fluid
for optimum protection and performance.
Do not mix different brands together.

Brake fluid:

• Always use KUBOTA DOT3 GENUINE BRAKE FLUID from a sealed container. If it is not available, you
should use only DOT3 fluid as a temporary replacement from a sealed container.
However, the use of any non-KUBOTA brake fluid can cause corrosion and decrease the life of the
system. Have the brake system flushed and refilled with KUBOTA DOT3 GENUINE BRAKE FLUID as soon
as possible.

Indicated capacities of water and oil are manufacturer's estimate.

9Y1210946GEG0003US0

G-10

RTV-X900, RTV-X1120D, WSM

NOTE

KiSC issued 01, 2014 A

GENERAL

For other than North American market

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:

• With the emission control now in effect, the CF-4 and CG-4 lubricating oils have been developed for use
of a low sulfur fuel on on-road vehicle engines. When an off-road vehicle engine runs on a high-sulfur
fuel, it is advisable to employ the "CF or better" lubricating oil with a high Total Base Number (TBN of 10
minimum).

• 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 (low-sulfur or high-sulfur fuel).

High Sulfur Fuel
[≥ 0.05 % (500 ppm)]

Low Sulfur Fuel
[< 0.05 % (500 ppm)] or
Ultra Low Sulfur Fuel
[< 0.0015 % (15 ppm)]

EGR: Exhaust Gas re-circulation

• The CJ-4 engine oil is intended for DPF (Diesel Particulate Filter) type engines, and cannot be used on

Fuel

• Cetane number of 45 minimum. Cetane number greater than 50 is preferred, especially for temperatures

• If diesel fuel with sulfur content greater than 0.5 % (5000 ppm) sulfur content is used, reduce the service

• NEVER use diesel fuel with sulfur content greater than 0.05 % (500 ppm) for EXTERNAL EGR type engine.

• DO NOT use diesel fuel with sulfur content greater than 1.0 % (10000 ppm).

• 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 heavy mobile service. (SAE J313

Transmission oil

• To complete lubrication of the transmission, it is important that a multi-grade transmission fluid is used

Hydraulic tank oil:

• To insure proper operation of the hydraulic and VHT system, it is important that a multi-grade

Brake fluid:

• Always use KUBOTA DOT3 GENUINE BRAKE FLUID from a sealed container. If it is not available, you

Indicated capacities of water and oil are manufacturer's estimate.

Fuel used

Engine oil classification (API classification)

Oil class of engines except external EGR Oil class of engines with external EGR

CF

(If the "CF-4, CG-4, CH-4, or CI-4"
lubricating oil is used with a high-sulfur

—
fuel, change the lubricating oil at shorter
intervals. (approximately half))

CF, CI-4

CF, CF-4, CG-4, CH-4 or CI-4

(Class CF-4, CG-4 and CH-4 engine oils
cannot be used on EGR type engines)

this vehicle.

except external EGR with external EGR

Model RTV-X900, RTV-X1120D —

below −20 °C or elevations above 1500 m.

interval for engine oil and filter by 50 %.

JUN87)

in this system.
We recommend the use of KUBOTA UDT or SUPER UDT fluid for optimum protection and performance.
Do not mix different brands together.

transmission fluid is used in this system. We recommend the use of KUBOTA UDT or SUPER UDT fluid
for optimum protection and performance.
Do not mix different brands together.

should use only DOT3 fluid as a temporary replacement from a sealed container.
However, the use of any non-KUBOTA brake fluid can cause corrosion and decrease the life of the
system.
Have the brake system flushed and refilled with KUBOTA DOT3 GENUINE BRAKE FLUID as soon as
possible.

9Y1210946GEG0004US0

G-11

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 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

123

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

40

4.0

to

to

44

4.5

63

6.4

to

to

72

7.4

––

–––

–––

–––

to

6.5

14.2

13

30

to

to

15

34

29

61

to

to

32

70

47

103

to

to

53

117

167

–

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

0.90

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

to

1.6

11

11

2.5

18

to

3.2

3.0
to

5.0

6.3
to

7.5

10.0
to

11. 5

17.5
to

20.5

20

to

to

23

25

22

to 3631 3.2 23

46

to 54–––

72.4
to

–––

83.1

127

to

–––

148

to

1.2

2.0
to

2.6

6.5
to

8.6

15

to

18

G-12

WSM000001GEG0002US0

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

[3] HYDRAULIC FITTINGS

(1) Hydraulic Hose Fittings

GENERAL

Hose size Thread side

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

(2) Hydraulic Pipe Cap Nuts

Pipe size

N·m kgf·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

Tightening torque

N·m kgf·m lbf·ft

WSM000001GEG0097US0

Tightening torque

(3) Adaptors, Elbows and Others

Item Thread side

G 1/8 45 to 53 4.5 to 5.5 33 to 39

G 1/4 74 to 83 7.5 to 8.5 55 to 61

Fitting with O-ring

G 3/8 93.2 to 102 9.50 to 10.5 68.8 to 75.9

G 1/2 113 to 122 11.5 to 12.5 83.2 to 90.4

G 1/8 23 to 26 2.3 to 2.7 17 to 19

G 1/4 36 to 43 3.6 to 4.4 26 to 31

Elbow with O-ring

G 3/8 54 to 63 5.5 to 6.5 40 to 47

G 1/2 73 to 83 7.4 to 8.5 54 to 61

G 1/8 9.8 to 14 1.0 to 1.5 7.3 to 10

G 1/4 30 to 34 3.0 to 3.5 22 to 25

Adapter

G 3/8 49 to 68 5.0 to 7.0 37 to 50

G 1/2 69 to 88 7.0 to 9.0 51 to 65

WSM000001GEG0098US0

Tightening torque

N·m kgf·m lbf·ft

WSM000001GEG0099US0

G-13

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

[4] 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

[5] 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

[6] 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-14

RTV-X900, RTV-X1120D, WSM

WARNING

IMPORTANT

KiSC issued 01, 2014 A

6. MAINTENANCE CHECK LIST

To avoid serious injury and vehicle damage:

• Be sure you have sufficient knowledge, experience, the proper replacement parts and tools before you

SERVICE INTERVALS

• The jobs indicated by  must be done after the first 50 hours of operation.

• The items listed below (@marked) are registered as emission related critical parts by KUBOTA in the

No. Item

1 Engine start system Check 

2 Greasing Apply 

3 Engine oil Change 

4 Muffler [Spark arrester] Clean 

5 Wheel fastener torque Check 

6 Battery condition Check 

7 Alternator belt Adjust 

8 VHT neutral spring Check 

9 VHT pressure release Check 

10 Toe-in Adjust 

11 Fuel filter element

12 Fuel line

13 Air cleaner element

14 Engine oil filter Replace 

15

16

17 Brake pedal Check 

18 Parking brake Adjust 

GENERAL

attempt any vehicle maintenance task.

*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.

U.S.EPA non road emission regulation. As the engine owner, you are responsible for the performance of
the required maintenance on the engine according to the below instruction. Please see Warranty
Statement in detail.

Transmission oil filter
(VHT) (Yellow color)

Transmission oil filter
(Suction) (Black color)

Service Interval

50 100 150 200 250 300 350 400 450 500 550 600 650 700

50 hrs

50 hrs

200 hrs

100 hrs

100 hrs

100 hrs

100 hrs

100 hrs

100 hrs

100 hrs

Check 

Replace 

Check 

Replace

Clean 

Replace

Replace 

Replace 

100 hrs

500 hrs

100 hrs

2 years

100 hrs

1 year

200 hrs

200 hr

200 hrs

200 hrs

200 hrs

After

since

every

every

every

every

every

every

every

every

every

every

every

every

every

every

every

every

every

every

every

every

every

Refer-

ence
page

G-30

G-31

G-39

G-33

G-33

G-34 *4

G-36

G-36

G-36

G-37

G-37

G-49 @

G-37

G-50 *3

G-38 *1

G-49 *2

G-40

40

G-

s

G-41

G-41

G-42

@

@

G-15

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

GENERAL

Service Interval

No. Item

19 Brake light switch Check 

20 Front brake case Check 

21 Hydraulic tank oil Change 

Radiator hose, pipe and

22

clamp

23 Hydraulic oil line

24 Intake air line

25 Engine breather hose Replace

26 Brake hose and pipe

27 Tire wear Check  

28 Transmission fluid Change 

29 Front axle case oil Change 

30 Knuckle case oil Change 

31 Engine valve clearance Adjust

Fuel injection nozzle

32

Injection pressure

33 Injection pump Check

Brake master cylinder

34

[inner parts]

35 Brake fluid Change

36 Rear brake cylinder seal Replace

37 Front brake seal Replace

38 Cooling system Flush

39 Coolant Change

40 Fuel system Bleed

41 Fuse Replace G-54

42 Light bulb Replace G-56

43 Hydraulic tank Check G-56

Check 

Replace

Check 

Replace

Check 

Replace

Check 

Replace

Check

Replace

50 100 150 200 250 300 350 400 450 500 550 600 650 700

200 hrs

200 hrs

200 hrs

200 hrs

2 years

200 hrs

2 years

200 hrs

2 years

2 years

200 hrs

4 years

300 hrs

400 hrs

400 hrs

400 hrs

800 hrs

1500 hrs

3000 hrs

2 year

2 years

2 years

2 years

2 years

2 years

Service

quired

9Y1210946GEG0005US0

After
since

every

every

every

every

every

every

every

every

every

every

every

every

every

every

every

every

every

every

every

every

every

every

every

every

every

as re-

Refer-

ence
page

G-42

G-43

G-43

G-44

G-50

G-45

G-50

G-46

G-50 *3

G-50

G-47

G-53

G-47

G-48

G-48

G-49

G-49

G-49 @

G-49 @

G-

s

G-50

G-50

G-50

G-51

G-51

G-54

@

50

G-16

RTV-X900, RTV-X1120D, WSM

WARNING

WARNING

IMPORTANT

KiSC issued 01, 2014 A

GENERAL

7. CHECK AND MAINTENANCE

[1] DAILY CHECK

For your own safety and maximum service life of the vehicle, make a thorough daily inspection before operating

the vehicle to start the engine.

To avoid serious injury:

• Be sure to check and service the vehicle on a flat surface with the engine shut off and the parking brake
"ON".

9Y1210946GEG0006US0

Walk around Inspection

Look around and under the vehicle for such items as loose

bolts, trash build-up, oil or coolant leaks, broken or worn parts.

9Y1210946GEG0007US0

Checking around Engine

1. Park the vehicle on a level surface.

2. Stop the engine.

3. Raise the cargo bed.

4. Mount the safety support.

5. Check around the engine for mud or foreign materials.

6. Remove all foreign materials if they are found.

9Y1210946GEG0008US0

Checking and Refueling

To avoid serious injury:

• Do not smoke while refueling.

• Be sure to stop the engine before refueling.

1. Turn the key switch to "ON", check the amount of fuel by fuel

gauge.

2. Fill fuel tank when fuel gauge shows 1/4 or less fuel in tank.

3. Use grade No.2-Diesel fuel at temperatures above −10 °C
(14 °F).
Use grade No.1-Diesel fuel at temperatures below −10 °C
(14 °F).

30 L

Fuel tank Capacity

7.9 U.S.gals

6.2 Imp.gals

• Do not permit dirt or trash to get into the fuel system.

• Be careful not to let the fuel tank become empty, otherwise
air will enter the fuel system, necessitating bleeding before
next engine start.

• Be careful not to spill during refueling. If should spill, wipe
it off at once, or it may cause a fire.

• To prevent water condensation from accumulating in the
fuel tank, fill the tank before parking overnight.

(1) Fuel Tank Cap

9Y1210946GEG0009US0

G-17

RTV-X900, RTV-X1120D, WSM

WARNING

IMPORTANT

IMPORTANT

KiSC issued 01, 2014 A

GENERAL

Checking Engine Oil Level

To avoid serious injury:

• Be sure to stop the engine before checking the oil level.

1. Park the vehicle on a level surface.

2. Raise the cargo bed and mount the safety support.

3. Stop the engine.

4. Check engine oil before starting the engine or 5 minutes or more
after the engine has stopped.

5. To check the oil level, draw out the dipstick, wipe it clean,
replace it, and draw it out again. Check to see that the oil level
lies between the 2 debossed lines.
If the level is too low, add new oil to the prescribed level at the
oil inlet.
(Refer to "4. LUBRICANTS, FUEL AND COOLANT" on page
G-8.)

• When using an oil of different maker or viscosity from the
previous one, remove all of the old oil.
Never mix 2 different types of oil.

• If oil level is low, do not run engine.

(1) Oil Inlet
(2) Dipstick

A: Oil level is acceptable within this

range.
[A] RTV-X900
[B] RTV-X1120D

9Y1210946GEG0010US0

Checking Transmission Fluid Level

1. Park the vehicle on a level surface.

2. Raise the cargo bed and mount the safety support.

3. Stop the engine.

4. To check the oil level, draw out the dipstick, wipe it clean,
replace it, and draw it out again. Check to see that the oil level
lies within the cross hatched area.
If the level is too low, add new oil to the prescribed level at the
oil inlet.
(Refer to "4. LUBRICANTS, FUEL AND COOLANT" on page
G-8.)

• If oil level is low, do not run engine.

Transmission oil Capacity

(1) Oil Inlet
(2) Dipstick

A: Oil level is acceptable within this

range.

G-18

7.0 L

1.8 U.S.gals

1.5 Imp.gals

9Y1210946GEG0011US0

RTV-X900, RTV-X1120D, WSM

IMPORTANT

WARNING

IMPORTANT

WARNING

IMPORTANT

KiSC issued 01, 2014 A

GENERAL

Checking Hydraulic Oil Tank Level

1. Park the vehicle on a level surface.

2. Stop the engine.

3. Open the seat and remove the utility box.

4. Remove the rubber cap.

5. To check the oil level, remove the dipstick, wipe it clean, screw
it into filling hole and remove dipstick again.
If the level is too low, add new oil to the prescribed level at the
oil inlet.
(Refer to "4. LUBRICANTS, FUEL AND COOLANT" on page
G-8.)

• If oil level is low, do not run engine.

(1) Filling Plug with Dipstick A: Oil level is acceptable within this

range.

9Y1210946GEG0012US0

Checking Coolant Level

To avoid serious injury:

• Do not remove radiator cap while coolant is hot. When cool,
slowly rotate cap to the first stop and allow sufficient time
for excess pressure to escape before removing the cap
completely.

1. Park the vehicle on a level surface.

2. Stop the engine.

3. Open the hood.

4. Check to see that the coolant level is between the "FULL" and
"LOW" marks of recovery tank.

5. When the coolant level drops due to evaporation, add water
only up to the full level.
In case of leakage, add anti-freeze and water in the specified
mixing ratio up to the full level.
(Refer to "4. LUBRICANTS, FUEL AND COOLANT" on page
G-8.)

• If the radiator cap has to be removed, follow the caution
above and securely retighten the cap.

• Use clean, fresh water and anti-freeze to fill the recovery
tank.

(1) Radiator Cap
(2) Recovery Tank

A: FULL
B: LOW

9Y1210946GEG0013US0

Cleaning Radiator Screen

To avoid serious injury:

• Be sure to stop the engine before removing the screen.

1. Park the vehicle on a flat surface.

2. Stop the engine.

3. Open the hood.

4. Detach the screen and remove all foreign materials.

• Radiator screen must be clean from debris to prevent
engine from overheating.

(1) Radiator Screen A: DETACH

9Y1210946GEG0014US0

G-19

RTV-X900, RTV-X1120D, WSM

WARNING

WARNING

WARNING

KiSC issued 01, 2014 A

GENERAL

Cleaning Oil Cooler Net

To avoid serious injury:

• Allow oil cooler or oil line parts to cool down sufficiently,
they can be hot and can cause injury.

1. Park the vehicle on a flat surface.

2. Stop the engine.

3. Open the seats and remove the utility box and maintenance
cover.

4. Detach the oil cooler net and remove all trash.

(1) Oil Cooler Net A: DETACH

9Y1210946GEG0015US0

Checking Brake Fluid Level

To avoid serious injury:

• Never operate the vehicle, if the brake fluid is below the
"MIN" mark.

• Use only KUBOTA DOT3 GENUINE BRAKE FLUID from a
sealed container. Using other type of oil ruins synthetic
resin or rubber installed in brake system components, and
may cause brake failure.

• Avoid contamination of the brake fluid.
Thoroughly clean area around the filler cap before
removing. Do not open the brake fluid reservoir cap unless
absolutely necessary.

• Use extreme care when filling the reservoir. If brake fluid is
spilled on the power steering hose, wash off with water
immediately. Brake fluid quickly ruins synthetic resin or
rubber hoses.

1. Park the vehicle on a level surface.

2. Open the hood.

3. Check to see that the brake fluid level is between the "MAX"
and "MIN" marks.

4. If it is below the "MIN" mark, add brake fluid to the "MAX" mark.

(1) Oil Tank A: MAX

B: MIN

9Y1210946GEG0016US0

Checking Brake Pedal

To avoid serious injury:

• Stop the engine and chock the wheels before checking
brake pedal.

1. Inspect the brake pedals for free travel, and smooth operation.

2. Adjust if incorrect measurement is found. (See page G-41
"Checking Brake Pedal" in "EVERY 200 HOURS".)

(1) Brake Pedal A: FREE TRAVEL

B: PEDAL STROKE

9Y1210946GEG0017US0

G-20

RTV-X900, RTV-X1120D, WSM

NOTE

KiSC issued 01, 2014 A

GENERAL

Checking Parking Brake

Pull the parking brake lever to apply the brakes. With the key

switch at "ON" position, the parking brake indicator on the
instrument panel lights up. To release the brakes, push in the button
at the side of the parking brake lever and tilt the lever forward the
lever.

• Make sure the parking brake warning lamp on the Easy
Checker™ goes off when parking brake lever is forward.

(1) Parking Brake Lever
(2) Release Button

A: "PULL"
B: "RELEASE"

9Y1210946GEG0018US0

Checking Easy Checker™

1. Inspect the instrument panel for broken Easy Checker™ lamps.

9Y1210946GEG0019US0

Checking Head Light, Turn Signal Light (If Equipped) etc.

1. Inspect the lights for broken bulbs and lenses.

2. Replace if broken.

9Y1210946GEG0020US0

Checking Seat Belt and ROPS

1. Always check condition of the seat belts before operating the
vehicle.

2. Replace if damaged.

9Y1210946GEG0021US0

G-21

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

GENERAL

Checking Joint Boot

1. Check to see if the joint boots are not damaged.

2. If the boots are cuts, cracked or deterioration, replace the new
one.

(1) Joint Boot (Front)
(2) Front Drive Shaft
(3) Tie-rod
(4) Joint Boot (Rear)
(5) Rear Drive Shaft
(6) Rear Stabilizer

[A] Front
[B] Rear

9Y1210946GEG0022US0

G-22

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

GENERAL

Checking Tire Inflation Pressure

Though the tire pressure is factory-set to the prescribed level, it
naturally drops slowly in the course of time. Thus, check it everyday
and inflate as necessary.

Tire sizes Inflation Pressure

25 × 10 − 12 HDWS, Front and Rear

140 kPa (1.4 kgf/cm

25 × 10 − 12 ATV, Front and Rear

(1) Ground (A) INSUFFICIENT

(B) NORMAL
(C) EXCESSIVE

9Y1210946GEG0023US0

2

, 20 psi)25 × 10 − 12 Turf, Front and Rear

Checking Backup Beeper

[if equipped]

1. Sit on the operator's seat.

2. Set the parking brake and stop the engine.

3. Shift the range gear shift lever to the NEUTRAL position.

4. Turn the key to ON position.

5. Shift the range gear shift lever to the REVERSE position.

(1) Range Gear Shift Lever
(2) Backup Beeper (if equipped)

(R) REVERSE

9Y1210946GEG0035US0

G-23

RTV-X900, RTV-X1120D, WSM

WARNING

KiSC issued 01, 2014 A

[2] CHECK POINTS OF INITIAL 50 HOURS

Changing Engine Oil

To avoid serious injury:

• Be sure to stop the engine before changing the oil.

• Allow engine to cool down sufficiently, oil can be hot and
can burn.

1. Park the vehicle on a level surface.

2. Raise the cargo bed and mount the safety support.

3. Stop the engine.

4. Remove the rear skid plate.

5. To drain the used oil, remove the drain plug at the bottom of the
engine and completely drain the oil into an oil pan.
All the used oil can be drained out easily when the engine is still
warm.

6. After draining, reinstall the drain plug.

7. Fill with the new oil up to the upper line on the dipstick.
(Refer to "4. LUBRICANTS, FUEL AND COOLANT" on page
G-8.)

[RTV-X900]

Engine oil Capacity

GENERAL

[Filter exchanged]

3.1 L

3.3 U.S.qts

2.7 Imp.qts

[Filter non-exchanged]

2.7 L

2.9 U.S.qts

2.4 Imp.qts

[RTV-X1120D]

Engine oil Capacity

(1) Oil Inlet
(2) Dipstick
(3) Rear Skid Plate
(4) Drain Plug

[Filter exchanged]

4.1 L

4.3 U.S.qts

3.6 Imp.qts

[Filter non-exchanged]

3.8 L

4.0 U.S.qts

3.3 Imp.qts

A: Oil level is acceptable within this

range.
[A] RTV-X900
[B] RTV-X1120D

9Y1210946GEG0024US0

G-24

RTV-X900, RTV-X1120D, WSM

WARNING

WARNING

IMPORTANT

KiSC issued 01, 2014 A

GENERAL

Checking Wheel Fastener Torque

To avoid serious injury:

• Never operate vehicle with a loose wheel bolts.

• Any time bolts are loosened, retighten to the specified
torque.

• Check all bolts frequently and keep them tight.

Check wheel bolts regularly especially when new. If they are

loose, tighten them as follows.

Aluminum wheel mounting
bolt

Tightening torque

Steel wheel mounting bolt
and nut

(1) Wheel Mounting Bolts

90 to 110 N·m

9.2 to 11.2 kgf·m

66.4 to 81.1 lbf·ft

108 to 130 N·m

11.1 to 13.2 kgf·m

79.7 to 95.8 lbf·ft

9Y1210946GEG0025US0

Replacing Engine Oil Filter

To avoid serious injury:

• Be sure to stop the engine before changing the oil filter.

• Allow engine to cool down sufficiently, oil can be hot and
can burn.

1. Park the vehicle on a flat surface.

2. Stop the engine.

3. Remove the rear skid plate.

4. Remove the oil filter.

5. Put a film of clean engine oil on the rubber seal of the new filter.

6. Tighten the filter quickly until it contacts the mounting surface.
Tighten the filter by hand an additional 1/2 turn only.

7. After the new filter has been replaced, the engine oil normally
decreases a little. Make sure that the engine oil does not leak
through the seal and be sure to check the oil level on the
dipstick. Then, replenish the engine oil up to the prescribed
level.

• To prevent serious damage to the engine, use only a
KUBOTA genuine filter.

(1) Engine Oil Filter (2) Battery

9Y1210946GEG0026US0

G-25

RTV-X900, RTV-X1120D, WSM

WARNING

IMPORTANT

WARNING

IMPORTANT

KiSC issued 01, 2014 A

GENERAL

Replacing Transmission Oil Filter [VHT]

To avoid serious injury:

• Be sure to stop the engine before changing the oil filter.

• Allow engine to cool down sufficiently, oil can be hot and
can burn.

1. Park the vehicle on a flat surface.

2. Remove the rear guard.

3. Remove the oil filter.

4. Put a film of clean transmission oil on the rubber seal of the new
filter.

5. Quickly tighten the filter by hand until it contacts the mounting
surface, then, with a filter wrench, tighten it an additional 1/2
turn only.

6. After the new filter has been replaced, fill the transmission oil up
to the upper notch on the dipstick.

7. After running the engine for a few minutes, stop the engine and
check the oil level again, add oil to the prescribed level.

8. Make sure that the transmission fluid doesn't leak past the seal
on the filters.

9. Install the rear guard.

• To prevent serious damage to the transmission, use only a
KUBOTA genuine filter.

(1) Transmission Oil Filter (VHT):

(Yellow Color)

(2) Rear Guard

9Y1210946GEG0027US0

Replacing Transmission Oil Filter [SUCTION]

To avoid serious injury:

• Be sure to stop the engine before changing the oil.

• Allow engine to cool down sufficiently, oil can be hot and
can burn.

1. Park the vehicle on a flat surface.

2. Remove the rear guard.

3. Remove the oil filter.

4. Put a film of clean transmission oil on the rubber seal of the new
filter.

5. Quickly tighten the filter by hand until it contacts the mounting
surface, then, with a filter wrench, tighten it an additional 1/2
turn only.

6. After the new filter has been replaced, fill the transmission oil up
to the upper notch on the dipstick.

7. After running the engine for a few minutes, stop the engine and
check the oil level again, add oil to the prescribed level.

8. Make sure that the transmission fluid doesn't leak past the seal
on the filters.

9. Install the rear guard.

• To prevent serious damage to the transmission, use only a
KUBOTA genuine filter.

(1) Transmission Oil Filter (Suction)

(Black Color)

(2) Rear Guard

9Y1210946GEG0028US0

G-26

RTV-X900, RTV-X1120D, WSM

WARNING

KiSC issued 01, 2014 A

GENERAL

Checking Brake Pedal

To avoid serious injury:

• Stop the engine and chock the wheels before checking
brake pedal.

• If movement is outside of the specifications, adjusting the
brake.

 Checking the brake pedal free travel

Proper brake pedal free travel 8 to 18 mm (0.3 to 0.7 in.) on the pedal

1. Release the parking brake.

2. Slightly depress the brake pedal and measure free travel at the
top of the pedal stroke.

3. If brake pedal free travel is outside of the specifications,
adjusting the brake.

 Checking the brake pedal stroke

Pedal stroke

Less than 150 mm (5.9 in.)

on the pedal

1. Release the parking brake.

2. Step on the pedal and measure the pedal stroke.

3. If brake pedal stroke is outside of the specifications, adjusting
the brake.

(1) Brake Pedal A: FREE TRAVEL

B: PEDAL STROKE

9Y1210946GEG0029US0

Adjusting Parking Brake

Proper parking brake lever free play
range

 Adjusting procedure

1. Park the vehicle on a flat surface.

2. Stop the engine.

3. Jack up the rear wheels.

4. Remove the left rear tire.

5. Remove the mud guard of rubber.

6. Release the parking brake.

7. Loosen the lock nuts.

8. Adjust the cable wire length.

9. Tighten the lock nuts securely.

10. Install the mud guard.

11. Install the left rear tire.

(1) Parking Brake Lever
(2) Push Rivet
(3) Mud Guard

(4) Lock Nut
(5) Cable Wire

1 notch

9Y1210946GEG0030US0

G-27

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

GENERAL

Checking Brake Light Switch

1. Park the vehicle on a flat surface.

2. Step on the brake pedal to check if the brake light comes on.

3. If it does not, check the bulb or brake light switch.

(1) Brake Light Switch

9Y1210946GEG0031US0

Checking Front Brake Case

1. Remove the drain plugs and the air-bleeding hole plugs.

2. Check the brake case for brake fluid leak.

(1) Drain Plug
(2) Allen Key

(3) Air-Bleeding Hole Plug

9Y1210946GEG0032US0

G-28

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

GENERAL

Checking Brake Hose and Pipe

1. Check to see that brake hose and pipe are not swollen,
hardened or cracked.

2. Check the brake hose and pipe joints for oil leaks.

3. If there is any abnormality, replace the new one.

(1) Brake Pipe
(2) Brake Hose

(3) Breather Hose
(4) Oil Cooler

9Y1210946GEG0033US0

Checking Tire

1. Check to see if tires are not damaged.

2. If the tires are cracked, bulged, or cut, or they are worn out,
replace or repair them at once.

 Tire Tread Depth

Always replace the tires when the tread depth is worn to

minimum allowable.

A: 3 mm (0.12 in.)

9Y1210946GEG0034US0

G-29

RTV-X900, RTV-X1120D, WSM

WARNING

KiSC issued 01, 2014 A

[3] CHECK POINTS OF EVERY 50 HOURS

Checking Engine Start System

To avoid serious injury:

• Do not allow anyone near the vehicle while testing.

• If the vehicle does not pass the test do not operate the
vehicle.

 Preparation before testing.

1. Place all control levers in the NEUTRAL position.

2. Set the parking brake and stop the engine.

 Test: Range gear shift lever safety switch

1. Sit on the operator's seat.

2. Shift the range gear shift lever to H position.

3. Return the Speed control pedal to the NEUTRAL position.

4. Shift the hydraulic lift cylinder lever to the NEUTRAL position.

5. Turn the key to START position.

6. The engine must not crank.

7. Repeat the step 2 to 6 with the range gear shift lever at L and R

each position.

8. If it cranks, adjust or replace the required safety switch.

(1) Range Gear Shift Lever
(2) Speed Control Pedal

GENERAL

(3) Hydraulic Lift Cylinder Lever

9Y1210946GEG0036US0

G-30

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

GENERAL

Greasing

1. Apply a small amount of multi-purpose grease to the following
points every 50 hours: If you operated the machine in extremely
wet and muddy conditions, lubricate grease fittings more often.

(1) Parking Brake Lever

(Spray Type Grease)
(2) Battery Terminals
(3) Cargo Lift Cylinder Pivot

(Grease Fitting)
(4) Cargo Bed Pivot

(Spray Type Grease)
(5) VHT Link (Grease Fitting)
(6) VHT Link (Spray Type Grease)

(7) Valve Lever Link

(Spray Type Grease)

(8) 4WD Lever Link

(Spray Type Grease)

(9) Range Gear Shift Link

(Spray Type Grease)

(A) Left Rear Tire

(To be continued)

G-31

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

(Continued)

GENERAL

(10) Unload Link (Spray Type Grease)
(11) Differential Lock Pedal

(Spray Type Grease)
(12) Front A-ARM (Grease Fitting)
(13) Rear A-ARM (Grease Fitting)
(14) Parking Brake Link

(Spray Type Grease)

(A) Left Rear Tire

9Y1210946GEG0037US0

G-32

RTV-X900, RTV-X1120D, WSM

WARNING

IMPORTANT

WARNING

KiSC issued 01, 2014 A

[4] CHECK POINTS OF EVERY 100 HOURS

Cleaning Muffler

[For Swirl Type Spark Arrester]

To avoid serious injury:

• Before touching any part of an exhaust system, be
absolutely sure that it has sufficient time to cool!

• Always wear safety goggles and a (face) mask.

• The particulate matter contained in the muffler contains
chemicals that are harmful to people, animals and marine
life.

 Cleaning spark arrester of muffler

This swirl type spark arrester was examined, tested, and

qualified in accordance with the USDA Forest Service Standard
5100-1c, "Spark Arresters for Internal Combustion Engines".

Maintenance and cleanout procedure:

The swirl type spark arrester should be cleaned and inspected

after every 100 hours of use.

1. Set vehicle in an open area away from combustible materials
and on flat surface.

2. Apply the parking brake and shift range gear shift lever into the
NEUTRAL position.

3. Remove the drain plug located on the bottom of the muffler
body.

4. Start engine and raise and lower engine revolution while tapping
on the muffler with a rubber mallet until the carbon particles are
purged from the muffler.

5. Stop the engine.

6. Reinstall the drain plug.

GENERAL

• Visually check the muffler for cracks or holes in the body,
weldment or pipes at regular intervals.

• Replace the entire muffler if it is damaged.

• Do not operate the vehicle with a damaged muffler.

(1) Muffler (2) Drain Plug

9Y1210946GEG0038US0

Checking Wheel Fastener Torque

To avoid serious injury:

• Never operate vehicle with a loose wheel bolts.

• Any time bolts are loosened, retighten to the specified
torque.

• Check all bolts frequently and keep them tight.

Check wheel bolts regularly especially when new. If they are

loose, tighten them as follows.

Aluminum wheel mounting
bolt

Tightening torque

Steel wheel mounting bolt
and nut

(1) Wheel Mounting Bolts

90 to 110 N·m

9.2 to 11.2 kgf·m

66.4 to 81.1 lbf·ft

108 to 130 N·m

11.1 to 13.2 kgf·m

79.7 to 95.8 lbf·ft

9Y1210946GEG0025US0

G-33

RTV-X900, RTV-X1120D, WSM

DANGER

DANGER

WARNING

IMPORTANT

KiSC issued 01, 2014 A

GENERAL

Checking Battery Condition

The factory-installed battery is non-refillable type.If the battery

is weak, charge the battery or replace it with new one.

To avoid the possibility of battery explosion:
For the refillable type battery, follow the instructions below.

• Do not use or charge the refillable type battery if the fluid
level is below the LOWER (lower limit level) mark.
Otherwise, the battery component parts may prematurely
deteriorate, which may shorten the battery's service life or
cause an explosion. Check the fluid level regularly and add
distilled water as required so that the fluid level is between
the UPPER and LOWER levels.

To avoid serious injury or death:

• 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.

To avoid serious injury:

• Batteries, battery posts, terminals and related accessories
contain lead and lead compounds, and other chemicals
known to the State of California to cause cancer and birth
problems or other reproductive harm. WASH HANDS
AFTER HANDLING.

• Never remove the battery cap while the engine is running.

• Keep electrolyte away from eyes, hands and clothes. If you
are spattered with it, wash it away completely with water
immediately and get medical attention.

• Keep open sparks and flames away from the battery at all
times. Hydrogen gas mixed with oxygen becomes very
explosive.

• Wear eye protection and rubber gloves when working
around battery.

• Mishandling the battery shortens the service life and adds
to maintenance costs.
The original battery is maintenance free, but needs some
servicing.
If the battery is weak, the engine will be difficult to start and
the lights will be dim. It is important to check the battery
periodically.

• When exchanging an old battery for new one, use battery of
equal specification in table below.

(1) Battery (A) Positive Terminal

(B) Negative Terminal

(To be continued)

G-34

RTV-X900, RTV-X1120D, WSM

DANGER

WARNING

KiSC issued 01, 2014 A

(Continued)

GENERAL

[RTV-X900]

(V)

Reserve
Capacity

(min)

Battery

Typ e

526RMF 12 80 535 40 12.0

Vol ts

Cold

Cranking

Amps

Capacity at

20 hrs (A. H.)

Normal

Charging

Rate (A)

[RTV-X1120D]

(V)

Reserve
Capacity

(min)

Battery

Typ e

624FMF 12 120 650 58 17.4

Vol ts

Cold

Cranking

Amps

Capacity at

20 hrs (A. H.)

Normal

Charging

Rate (A)

(For non-accessible maintenance-free type batteries.)

Maintenance-free, non-accessible batteries are designed to
eliminate the need to add water. Yet the volume of electrolyte above
plates may eventually become depleted due to abnormal conditions
such as high heat or improper regulator setting. Use a voltmeter to
check the state of charge. (See reference chart below to determine
if charging is necessary.)

Battery voltage Reference state of charge

12.6 100 % (Full charge)

12.4 75 %

12.2 50 %

12.0 25 %

11. 8 0 %

 Battery Charging

To avoid serious injury or death:

• 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.

To avoid serious injury:

• 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. Park the vehicle on a flat surface.

2. Stop the engine.

3. Remove the battery cover.

4. 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.

5. 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.

6. When exchanging an old battery for a new one, use battery of
equal specification shown in table 1.

(To be continued)

G-35

RTV-X900, RTV-X1120D, WSM

WARNING

WARNING

KiSC issued 01, 2014 A

(Continued)

GENERAL

 Direction for Storage

1. When storing the vehicle for a long period, remove the battery
from vehicle, adjust the electrolyte to the proper level (refillable
type only) and store in a dry place out of direct sunlight.

2. The battery self-discharges while it is stored. Recharge it once
every 3 months in hot seasons and once every 6 months in cold
seasons.

9Y1210946GEG0039US0

Adjusting Alternator Belt Tension

To avoid serious injury:

• Be sure to stop the engine before checking belt tension.

Proper alternator

belt tension

A deflection of between
7 to 9 mm (0.28 to 0.34 in.)
when the belt is pressed in the middle of the span.

1. Park the vehicle on a flat surface, open the seat, remove utility
box and maintenance cover.

2. Stop the engine.

3. Apply moderate thumb pressure to belt between pulleys

4. If tension is incorrect, loosen the alternator mounting bolts and,
using a lever placed between the alternator and the engine
block, pull the alternator out until the deflection of the belt falls
within acceptable limits.

5. Replace alternator belt if it is damaged.

(1) Bolt (A) Check the Belt Tension

(B) To Tighten

9Y1210946GEG0040US0

Checking VHT Neutral Spring

1. Park the vehicle on a flat place.

2. Set the parking brake.

3. Shift the range gear shift lever to the NEUTRAL position.

4. Lock the hydraulic lift cylinder lever to the NEUTRAL position
with restricting plate.

5. Start the engine.

6. Make sure that the rotation speed of the engine returns to the
idling rotation immediately when taking the foot off the pedal,
after depressing the speed control pedal several times.

7. If does not operate normally check the linkage. (See page
2-S34.)

(1) Neutral Spring

9Y1210946GEG0041US0

Checking VHT Pressure Release

To avoid serious injury:

• Do not touch muffler or exhaust pipes while they are hot;
severe burns could result.

1. Park the vehicle on a level surface and set the parking brake.

2. Start the engine and shut it off soon.

3. Check the points as shown in the figures below.
(a) No clearance between rod and link.
(b) The length of the rod is appeared 21.5 mm (0.85 in.) and
over.

(1) Unload Link
(2) Unload Valve Rod

(L) 21.5 mm and over
(P) The Link is contact with the Rod.

9Y1210946GEG0042US0

G-36

RTV-X900, RTV-X1120D, WSM

WARNING

IMPORTANT

KiSC issued 01, 2014 A

GENERAL

Adjusting Toe-in

Proper toe-in

5 to 15 mm

0.2 to 0.59 in.

1. Park vehicle on a flat place.

2. Turn steering wheel so front wheels are in the straight ahead
position.

3. Lock the park brake and stop the engine.

4. Measure distance between tire beads at front of tire, at hub
height.

5. Measure distance between tire beads at rear of tire, at hub
height.

6. Front distance should be shorter than rear distance. If not,
adjust tie rod length.

A: Wheel-to-Wheel Distance at Rear
B: Wheel-to-Wheel Distance at Front

C: FRONT

9Y1210946GEG0043US0

Checking Fuel Line and Fuel Filter

To avoid serious injury:

• Be sure to stop the engine and remove the key when
attempting to make the following checks and changes.

• Never fail to check the fuel lines periodically. The fuel lines
are subject to wear and aging. Fuel may leak out onto the
running engine, causing a fire.

The fuel line connections should be checked annually or every

100 service hours, whichever comes first.

1. Park the vehicle on a flat surface, raise the cargo bed, mount the
safety support and shut off the engine.

2. The fuel line is made of rubber and ages regardless of service
period.

3. If the fuel line and clamps are found to be damaged or
deteriorated, replace them.

4. Check fuel filter, if it is clogged by debris or contaminated with
water, replace it.

• When the fuel line is disconnected for maintenance or
repair, close both ends of the fuel line with a piece of clean
cloth or paper to prevent dust and dirt from entering. In
addition, particular care must be taken not to admit dust
and dirt into the fuel pump. Entrance of even a small
amount of dust or dirt cause premature wear and
malfunction of the fuel pump and injector components.

(1) Fuel Filter
(2) Fuel Line
(3) Pipe Clamp
(4) Fuel Pump

[A] RTV-X900
[B] RTV-X1120D

9Y1210946GEG0044US0

G-37

RTV-X900, RTV-X1120D, WSM

NOTE

IMPORTANT

KiSC issued 01, 2014 A

GENERAL

Cleaning Air Cleaner Primary Element

1. Remove the air cleaner cover and primary element.

2. Clean the primary element:
(1) When dry dust adheres to the element, blow compressed air

from the inside, turning the element. Pressure of
compressed air must be under 205 kPa (2.1 kgf/cm
30 psi).

(2) When carbon or oil adheres to the element, replace the

element with new one even if it has not been used for 1 year.

3. Replace the primary element:
Once yearly or after every sixth cleaning, whichever comes first.

• Check to see if the evacuator valve is blocked with dust.

• Check the rubber seal. Replace if damaged.

• The air cleaner uses a dry element, never apply oil.

• Do not run the engine with filter element removed.

• Be sure to refit the cover with the arrow (on the rear of
cover) upright. If the cover is improperly fitted, evacuator
valve will not function and dust will adhere to the element.

• Do not touch the secondary element except in cases where
replacing is required.

 Evacuator Valve

Open the evacuator valve once a week under ordinary

conditions-or daily when used in a dusty place-to get rid of large
particles of dust and dirt.

(1) Secondary (Safety) Element
(2) Primary Element
(3) Rubber Seal

(4) Evacuator Valve
(5) Cover

9Y1210946GEG0045US0

2

,

G-38

RTV-X900, RTV-X1120D, WSM

WARNING

KiSC issued 01, 2014 A

[5] CHECK POINTS OF EVERY 200 HOURS

Changing Engine Oil

To avoid serious injury:

• Be sure to stop the engine before changing the oil.

• Allow engine to cool down sufficiently, oil can be hot and
can burn.

1. Park the vehicle on a level surface.

2. Raise the cargo bed and mount the safety support.

3. Stop the engine.

4. Remove the rear skid plate.

5. To drain the used oil, remove the drain plug at the bottom of the
engine and completely drain the oil into an oil pan.
All the used oil can be drained out easily when the engine is still
warm.

6. After draining, reinstall the drain plug.

7. Fill with the new oil up to the upper line on the dipstick. (Refer to
"4. LUBRICANTS, FUEL AND COOLANT" on page G-8.)

[RTV-X900]

Engine oil Capacity

GENERAL

[Filter exchanged]

3.1 L

3.3 U.S.qts

2.7 Imp.qts

[Filter non-exchanged]

2.7 L

2.9 U.S.qts

2.4 Imp.qts

[RTV-X1120D]

Engine oil Capacity

(1) Oil Inlet
(2) Dipstick
(3) Rear Skid Plate
(4) Drain Plug

[Filter exchanged]

4.1 L

4.3 U.S.qts

3.6 Imp.qts

[Filter non-exchanged]

3.8 L

4.0 U.S.qts

3.3 Imp.qts

A: Oil level is acceptable within this

range.
[A] RTV-X900
[B] RTV-X1120D

9Y1210946GEG0046US0

G-39

RTV-X900, RTV-X1120D, WSM

WARNING

IMPORTANT

WARNING

IMPORTANT

KiSC issued 01, 2014 A

GENERAL

Replacing Engine Oil Filter

To avoid serious injury:

• Be sure to stop the engine before changing the oil filter.

• Allow engine to cool down sufficiently, oil can be hot and
can burn.

1. Park the vehicle on a flat surface.

2. Stop the engine.

3. Remove the rear skid plate.

4. Remove the oil filter.

5. Put a film of clean engine oil on the rubber seal of the new filter.

6. Tighten the filter quickly until it contacts the mounting surface.
Tighten the filter by hand an additional 1/2 turn only.

7. After the new filter has been replaced, the engine oil normally
decreases a little. Make sure that the engine oil does not leak
through the seal and be sure to check the oil level on the
dipstick. Then, replenish the engine oil up to the prescribed
level.

• To prevent serious damage to the engine, use only a
KUBOTA genuine filter.

(1) Engine Oil Filter (2) Battery

9Y1210946GEG0026US0

Replacing Transmission Oil Filter [VHT]

To avoid serious injury:

• Be sure to stop the engine before changing the oil filter.

• Allow engine to cool down sufficiently, oil can be hot and
can burn.

1. Park the vehicle on a flat surface.

2. Remove the rear guard.

3. Remove the oil filter.

4. Put a film of clean transmission oil on the rubber seal of the new
filter.

5. Quickly tighten the filter by hand until it contacts the mounting
surface, then, with a filter wrench, tighten it an additional 1/2
turn only.

6. After the new filter has been replaced, fill the transmission oil up
to the upper notch on the dipstick.

7. After running the engine for a few minutes, stop the engine and
check the oil level again, add oil to the prescribed level.

8. Make sure that the transmission fluid doesn't leak past the seal
on the filters.

9. Install the rear guard.

• To prevent serious damage to the transmission, use only a
KUBOTA genuine filter.

(1) Transmission Oil Filter (VHT):

(Yellow Color)

(2) Rear Guard

9Y1210946GEG0027US0

G-40

RTV-X900, RTV-X1120D, WSM

WARNING

IMPORTANT

WARNING

KiSC issued 01, 2014 A

GENERAL

Replacing Transmission Oil Filter [SUCTION]

To avoid serious injury:

• Be sure to stop the engine before changing the oil.

• Allow engine to cool down sufficiently, oil can be hot and
can burn.

1. Park the vehicle on a flat surface.

2. Remove the rear guard.

3. Remove the oil filter.

4. Put a film of clean transmission oil on the rubber seal of the new
filter.

5. Quickly tighten the filter by hand until it contacts the mounting
surface, then, with a filter wrench, tighten it an additional 1/2
turn only.

6. After the new filter has been replaced, fill the transmission oil up
to the upper notch on the dipstick.

7. After running the engine for a few minutes, stop the engine and
check the oil level again, add oil to the prescribed level.

8. Make sure that the transmission fluid doesn't leak past the seal
on the filters.

9. Install the rear guard.

• To prevent serious damage to the transmission, use only a
KUBOTA genuine filter.

(1) Transmission Oil Filter (Suction)

(Black Color)

(2) Rear Guard

9Y1210946GEG0028US0

Checking Brake Pedal

To avoid serious injury:

• Stop the engine and chock the wheels before checking
brake pedal.

• If movement is outside of the specifications, adjusting the
brake.

 Checking the brake pedal free travel

Proper brake pedal free travel 8 to 18 mm (0.3 to 0.7 in.) on the pedal

1. Release the parking brake.

2. Slightly depress the brake pedal and measure free travel at the
top of the pedal stroke.

3. If brake pedal free travel is outside of the specifications,
adjusting the brake.

 Checking the brake pedal stroke

Pedal stroke

Less than 150 mm (5.9 in.)

on the pedal

1. Release the parking brake.

2. Step on the pedal and measure the pedal stroke.

3. If brake pedal stroke is outside of the specifications, adjusting
the brake.

(1) Brake Pedal A: FREE TRAVEL

B: PEDAL STROKE

9Y1210946GEG0029US0

G-41

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

GENERAL

Adjusting Parking Brake

Proper parking brake lever free play
range

 Adjusting procedure

1. Park the vehicle on a flat surface.

2. Stop the engine.

3. Jack up the rear wheels.

4. Remove the left rear tire.

5. Remove the mud guard of rubber.

6. Release the parking brake.

7. Loosen the lock nuts.

8. Adjust the cable wire length.

9. Tighten the lock nuts securely.

10. Install the mud guard.

11. Install the left rear tire.

(1) Parking Brake Lever
(2) Push Rivet
(3) Mud Guard

(4) Lock Nut
(5) Cable Wire

1 notch

9Y1210946GEG0030US0

Checking Brake Light Switch

1. Park the vehicle on a flat surface.

2. Step on the brake pedal to check if the brake light comes on.

3. If it does not, check the bulb or brake light switch.

(1) Brake Light Switch

9Y1210946GEG0031US0

G-42

RTV-X900, RTV-X1120D, WSM

WARNING

KiSC issued 01, 2014 A

GENERAL

Checking Front Brake Case

1. Remove the drain plugs and the air-bleeding hole plugs.

2. Check the brake case for brake fluid leak.

(1) Drain Plug
(2) Allen Key

(3) Air-Bleeding Hole Plug

9Y1210946GEG0032US0

Changing Hydraulic Tank Oil

To avoid serious injury:

• Be sure to stop the engine before changing the oil.

• Allow engine to cool down sufficiently, oil can be hot and
can burn.

1. Park the vehicle on a level surface.

2. Open the seat and remove the utility box.

3. Remove the rubber cap.

4. To drain the used oil, remove the drain plug and filling plug and
drain the oil completely into the oil pan.

5. After draining, reinstall the drain plug.

6. Fill with new KUBOTA SUPER UDT fluid up to the upper line on
the dipstick.
(Refer to "4. LUBRICANTS, FUEL AND COOLANT" on page
G-8.)
How to check:
Wipe dipstick clean with a rag and screw it into filling hole.
Remove dipstick again to see if the oil level is between the
upper and lower line.

7. After filling, reinstall the filling plug.

18.0 L

Hydraulic tank oil Capacity

(1) Drain Plug

19.0 U.S.qts

16.0 Imp.qts

9Y1210946GEG0047US0

G-43

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

GENERAL

Checking Radiator Hose, Pipe and Clamp

Park the vehicle on a flat surface. Raise the cargo bed and

mount the safety support.

Check to see if radiator hoses are properly fixed every 200

hours of operation or 6 months, whichever comes first.

1. If hose clamps are loose or water leaks, tighten bands securely.

2. Replace hoses and tighten hose clamps securely, if radiator
hoses are swollen, hardened or cracked.
Replace hoses and hose clamps every 2 years or earlier if

checked and found that hoses are swollen, hardened or cracked.

 Precaution at Overheating

Take the following actions in the event the coolant temperature

is close to or more than the boiling point, which is called
Overheating.

1. Stop the vehicle operation in a safe place, unload the engine
and remain at idle.

2. Don't stop the engine suddenly, but stop it after about 5 minutes
of unloaded idling.

3. Keep yourself well away from the vehicle for at least 10 minutes
or while the steam is blowing out.

4. Check to confirm that there is no danger from the overheat
condition, check the cause of the overheat and fix the cause.
After the engine has cooled, re-start the engine.

(1) Radiator Hose
(2) Clamp Band
(3) Battery
(4) Oil Cooler

[A] RTV-X900
[B] RTV-X1120D

9Y1210946GEG0048US0

G-44

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

GENERAL

Checking Hydraulic Oil Line

1. Check to see if the hoses and hose clamps are tight and not
damaged.

2. If hoses and clamps are found to be worn or damaged, replace
or repair them at once.

(1) Hydraulic Pump → Control Valve
(2) HST→ Oil Tank
(3) Control Valve ←→ Lift Cylinder
(4) Control Valve → Power Steering Unit
(5) Oil Tank → HST
(6) Power Steering Unit → Oil Cooler
(7) Oil Cooler → Oil Tank
(8) Oil Cooler
(9) Oil Tank → Hydraulic Pump
(10) Hydraulic Pump
(11) Power Steering Hose (Power Steering Unit → Oil Cooler)
(12) Power Steering Hose (Power Steering Unit ←→ Power Steering Cylinder)
(13) Power Steering Hose

(With Hydraulic Dump: Power Steering Unit ← Control Valve,

Without Hydraulic Dump: Power Steering Unit ← Hydraulic Pump)
(14) Power Steering Unit
(15) Power Steering Cylinder

[A] Only With Hydraulic Dump

9Y1210946GEG0049US0

G-45

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

GENERAL

Checking Intake Air Line

1. Check to see if the hoses and hose clamps are tight and not
damaged.

2. If hoses and clamps are found to be worn or damaged, replace
or repair them at once.

(1) Hose
(2) Hose Clamp

(3) Joint
(4) Hydraulic Tank

9Y1210946GEG0050US0

G-46

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

GENERAL

Checking Brake Hose and Pipe

1. Check to see that brake hose and pipe are not swollen,
hardened or cracked.

2. Check the brake hose and pipe joints for oil leaks.

3. If there is any abnormality, replace the new one.

(1) Brake Pipe
(2) Brake Hose

(3) Breather Hose
(4) Oil Cooler

9Y1210946GEG0033US0

[6] CHECK POINT OF EVERY 300 HOURS

Checking Tire

1. Check to see if tires are not damaged.

2. If the tires are cracked, bulged, or cut, or they are worn out,
replace or repair them at once.

 Tire Tread Depth

Always replace the tires when the tread depth is worn to

minimum allowable.

A: 3 mm (0.12 in.)

9Y1210946GEG0034US0

G-47

RTV-X900, RTV-X1120D, WSM

WARNING

IMPORTANT

KiSC issued 01, 2014 A

[7] CHECK POINTS OF EVERY 400 HOURS

Changing Transmission Fluid

To avoid serious injury:

• Be sure to stop the engine before changing the oil.

• Allow engine to cool down sufficiently, oil can be hot and
can burn.

1. Park the vehicle on a level surface.

2. Raise the cargo bed and mount the safety support.

3. To drain the used oil, remove the drain plug at the bottom of the
transmission case and drain the oil completely into the oil pan.

4. After draining, reinstall the drain plug.

5. Fill with the new KUBOTA SUPER UDT fluid up to the upper
cross hatched area on the dipstick.
(Refer to "4. LUBRICANTS, FUEL AND COOLANT" on page
G-8.)

6. After running the engine for a few minutes, stop the engine and
check the oil level again; add oil to prescribed level.

Transmission oil Capacity

GENERAL

7.0 L

1.8 U.S.gals

1.5 Imp.gals

• Do not operate the vehicle immediately after changing the
transmission fluid.
Run the engine at medium speed for a few minutes to
prevent damage to the transmission.

(1) Oil Inlet
(2) Dipstick
(3) Drain Plug
(4) Magnet Plug

A: Oil level is acceptable within this

range.

9Y1210946GEG0053US0

Changing Front Axle Case Oil

1. Park the vehicle on a level surface.

2. Turn over the rubber sheet.

3. To drain the used oil, remove the drain plug and the filling plug
at the front axle case and drain the oil completely into the oil
pan.

4. After draining, reinstall the drain plug.

5. Fill with the new oil up to the upper line on the dipstick.
(Refer to "4. LUBRICANTS, FUEL AND COOLANT" on page
G-8.)

6. After filling, reinstall the filling plug.

Front axle case oil Capacity

0.6 L

0.6 U.S.qts

0.52 Imp.qts

(1) Drain Plug
(2) Filling Plug with Dipstick

G-48

A: Oil level is acceptable with in this

range.

9Y1210946GEG0054US0

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

GENERAL

Changing Front Knuckle Case Oil

1. Park the vehicle on a firm, flat and level surface.

2. Remove the tire.

3. To drain the used oil, remove the drain and filling plugs at the
LH knuckle case and drain the oil completely into the oil pan.

4. After draining, reinstall the drain plug.

5. Fill with the new oil up to the filling port level.
(Refer to "4. LUBRICANTS, FUEL AND COOLANT" on page
G-8.)

6. After filling, reinstall the filling plug.

7. Use the same procedure to change the RH knuckle case oil.

Front knuckle case
oil

(1) Drain Plug (2) Filling Plug

Capacity (one side)

(Reference)

0.25 L

0.26 U.S.qts

0.22 Imp.qts

9Y1210946GEG0055US0

[8] CHECK POINT OF EVERY 500 HOURS

Replacing Fuel Filter

1. See page G-37.

[9] CHECK POINT OF EVERY 800 HOURS

Adjusting Engine Valve Clearance

1. See page 1-S21.

[10] CHECK POINT OF EVERY 1500 HOURS

Checking Fuel Injection Nozzle Injection Pressure

1. See page 1-S23.

[11] CHECK POINT OF EVERY 3000 HOURS

Checking Injection Pump

1. See page 1-S28.

[12] CHECK POINT OF EVERY 1 YEAR

Replacing Air Cleaner Primary Element

1. Replace the both primary Refer to "Cleaning Air Cleaner
Primary Element". (See page G-38.)

9Y1210946GEG0056US0

9Y1210946GEG0057US0

9Y1210946GEG0058US0

9Y1210946GEG0059US0

9Y1210946GEG0060US0

G-49

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

[13] CHECK POINTS OF EVERY 2 YEARS

Replacing Fuel Line

1. See page G-37.

Replacing Radiator Hose, Replace the Hoses and Clamps
(Water Pipes)

1. See page G-44.

Replacing Hydraulic Oil Line

1. See page G-45.

Replacing Intake Air Line

1. See page G-46.

Replacing Engine Breather Hose

1. See page 1-S43, 1-S59.

Replacing Brake Master Cylinder (Inner Parts)

1. See page 4-S15.

Changing Brake Fluid

1. See page 4-S5.

Replacing Rear Brake Cylinder Seal

1. See page 4-S17.

Replacing Front Brake Seal

1. See page 4-S14.

GENERAL

9Y1210946GEG0061US0

9Y1210946GEG0062US0

9Y1210946GEG0063US0

9Y1210946GEG0064US0

9Y1210946GEG0065US0

9Y1210946GEG0066US0

9Y1210946GEG0067US0

9Y1210946GEG0068US0

9Y1210946GEG0069US0

G-50

RTV-X900, RTV-X1120D, WSM

WARNING

IMPORTANT

KiSC issued 01, 2014 A

GENERAL

Flushing Cooling System and Changing Coolant

To avoid serious injury:

• Do not remove the radiator cap while coolant is hot. When
cool, slowly rotate cap to the first stop and allow sufficient
time for excess pressure to escape before removing the
cap completely.

1. Stop the engine and let cool down.

2. Open the hood.

3. To drain the coolant, open the radiator drain plug and remove
radiator cap and engine coolant breather. The radiator cap must
be removed to completely drain the coolant.

4. After all coolant is drained, close the drain plug.

5. Fill with clean water and cooling system cleaner.

6. Follow directions of the cleaner instruction.

7. After flushing, fill with clean distilled water and antifreeze until
the coolant level is just below the radiator cap.
Install the radiator cap securely.

8. Fill with fresh distilled water up to the "FULL" mark on the
recovery tank.

9. Close the engine coolant breather.

10. Start and operate the engine for few minutes.

11. Stop the engine and let cool.

12. Check coolant level of recovery tank and add coolant if
necessary.

6.1 L

Coolant Capacity

6.4 U.S.qts

5.4 Imp.qts

• Do not start engine without coolant.

• Do not remove the cap on the radiator.

• Use clean, fresh distilled water and anti-freeze to fill the
radiator and recovery tank.

• When the anti-freeze is mixed with distilled water, the
antifreeze mixing ratio is 50 %.

• Securely tighten radiator cap. If the cap is loose or
improperly fitted, water may leak out and the engine could
overheat.

• Make sure that the engine coolant breather is closed, after
filling the coolant.

(1) Drain Plug
(2) Front Skid Plate
(3) Radiator Cap
(4) Recovery Tank
(5) Engine Coolant Breather

A: FULL
B: LOW

9Y1210946GEG0070US0

G-51

RTV-X900, RTV-X1120D, WSM

WARNING

IMPORTANT

KiSC issued 01, 2014 A

GENERAL

 Anti-Freeze

To avoid serious injury:

• When using anti-freeze, put on some protection such as
rubber gloves. (Anti-freeze contains poison.)

• If it is swallowed, seek immediate medical help.Do NOT
make a person throw up unless told to do so by poison
control or a health care professional. Use standard first aid
and CPR for signs of shock or cardiac arrest. Call your
local Poison Control Center or your local emergency
number for further assistance.

• When anti-freeze comes in contact with the skin or
clothing, wash it off immediately.

• Do not mix different types of Anti-freeze. The mixture can
produce chemical reaction causing harmful substances.

• Anti-freeze is extremely flammable and explosive under
certain conditions. Keep fire and children away from
anti-freeze.

• When draining fluids from the engine, place some
container underneath the engine body.

• Do not pour waste onto the ground, down a drain, or into
any water source.

• Also, observe the relevant environmental protection
regulations when disposing of antifreeze.

Always use a 50/50 mix of long-life coolant and clean soft water

in KUBOTA engines.

1. Long-life coolant (hereafter LLC) comes in several types. Use
ethylene glycol (EG) type for this engine.

2. Before employing LLC-mixed cooling water, fill the radiator with
fresh water and empty it again.
Repeat this procedure 2 or 3 times to clean up the inside.

3. Mixing the LLC
Premix 50 % LLC with 50 % clean soft water. When mixing, stir
it up well, and then fill into the radiator.

4. The procedure for the mixing of water and anti-freeze differs
according to the make of the anti-freeze and the ambient
temperature. Refer to SAE J1034 standard, more specifically
also to SAE J814c.

When mixing the anti-freeze with water, the anti-freeze mixing
ratio is 50 %.

Vol %

Anti-freeze

50 −37 −34 108 226

*At 1.013 × 105 Pa (760 mmHg) pressure (atmospheric).

Freezing Point Boiling Point*

°C °F °C °F

A higher boiling point is obtained by using a radiator pressure

cap which permits the development of pressure within the cooling
system.

(To be continued)

G-52

RTV-X900, RTV-X1120D, WSM

NOTE

KiSC issued 01, 2014 A

(Continued)

5. Adding the LLC
(1) Add only water if the coolant level reduces in the cooling
system by evaporation.
(2) If there is a mixture leak, add the LLC of the same
manufacturer and type in the mixing ratio 50 %.
* Never add any long-life coolant of different manufacturer.
(Different brands may have different additive components, and
the engine may fail to perform as specified.)

6. When the LLC is mixed, do not employ any radiator cleaning
agent. The LLC contains anti-corrosive agent. If mixed with the
cleaning agent, sludge may build up, adversely affecting the
engine parts.

7. Kubota's genuine long-life coolant has a service life of 2 years.
Be sure to change the coolant every 2 years.

• The above data represent industry standards that
necessitate a minimum glycol content in the concentrated
anti-freeze.

[14] CHECK POINT OF EVERY 4 YEARS

Replacing Brake Hose

1. See page G-47.

GENERAL

9Y1210946GEG0071US0

9Y1210946GEG0072US0

G-53

RTV-X900, RTV-X1120D, WSM

IMPORTANT

KiSC issued 01, 2014 A

[15] OTHERS

GENERAL

Bleeding Fuel System

Air must be removed:

1. When the fuel filter or lines are removed.

2. When tank is completely empty.

3. After the vehicle has not been used for a long period of time.

 Bleeding procedure is as follows:

1. Fill the fuel tank with fuel.

2. Pump the fuel pump lever. The fuel pump lever will pump easily
at first and with added resistance as air is purged from the
system.

3. Start the engine and run for about 30 seconds, and then stop
the engine.

(1) Fuel Pump Lever (2) Fuel Pump

9Y1210946GEG0073US0

Cleaning around Engine

1. See page G-17.

9Y1210946GEG0074US0

Replacing Fuse

The vehicle electrical system is protected from potential

damage by fuses.

A blown fuse indicates that there is an overload or short

somewhere in the electrical system.

If any of the fuses should blow, replace with a new one of the

same capacity.

• 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 vehicle
electrical system.

 Replacement procedure

1. Disconnect the negative cable of the battery.

2. Open the seats and remove the utility box and maintenance
cover.

3. Remove the fuse box cover.

4. Pull out the blown fuse using FUSE PULLER in the fuse box.

5. Insert a new fuse into the fuse box.

6. Install the fuse box cover and the maintenance cover.

7. Connect the negative battery cable.

(1) Fuse Box
(2) Oil Cooler
(3) Fuse
(4) Fuse Puller

F: Front

9Y1210946GEG0075US0

G-54

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

GENERAL

Protected Circuit

[RTV-X900]

Fuse No. Capacity (A) Protected circuit

(1) 5 Glow lamp

(2) 5 Starter relay

(3) 10 Radiator fan relay

(4) 10 AUX / B, Buzzer relay (Option, Lamp)

(5) 5 Key stop timer

(6) 5 Meter (IGN)

(7) 15 Beacon / Fog lamp

(8) 15 Head light blinker (Front)

(9) 15 Blinker (Rear) brake lamp

(10) 30 Radiator fan

(11) 10 DC output

(12) 20 –

(13) 10 Horn

(14) 15 Work light

(15) 15 Key stop timer

(16) 5 Meter (BAT)

(17) 30, 20, 15, 10, 5 Spare

(18) Slow-blow fuse (60) Key switch

(19) Slow-blow fuse (60) Alternator

(20) – Fuse puller

[RTV-X1120D]

Fuse No. Capacity (A) Protected circuit

(1) 5 Glow lamp

(2) 5 Starter relay

(3) 10 Radiator fan relay

(4) 10 AUX / B, Buzzer relay (Option, Lamp)

(5) 5 Solenoid

(6) 5 Meter (IGN)

(7) 15 Beacon / Fog lamp

(8) 15 Head light blinker (Front)

(9) 15 Blinker (Rear) brake lamp

(10) 30 Radiator fan

(11) 10 DC output

(12) 20 –

(13) 10 Horn

(14) 15 Work light

(15) 30 Solenoid

(16) 5 Meter (BAT)

(17) 30, 20, 15, 10, 5 Spare

(18) Slow-blow fuse (60) Key switch

(19) Slow-blow fuse (60) Alternator

(20) – Fuse puller

F: Front

9Y1210946GEG0076US0

G-55

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

GENERAL

Replacing Slow-Blow Fuses

The slow-blow fuses are intended to protect the electrical

cabling. If any of them have blown out, be sure to pinpoint the
cause. Never use any substitute, use only a KUBOTA genuine part.

 Replacement procedure

1. Disconnect the negative cable of the battery.

2. Open the seats and remove the utility box and maintenance
cover.

3. Remove the fuse box cover.

4. Pull out the slow-blow fuse.

5. Insert a new slow-blow fuse into the slow-blow fuse box.

6. Install the slow-blow fuse box cover and the maintenance cover.

7. Connect the negative battery cable.

9Y1210946GEG0077US0

Replacing Light Bulb

1. Head light and turn signal light (front)
Take the bulb out of the light body and replace it with a new one.

2. Other lights
Detach the lens and replace the bulb.

Light Capacity

Head light (Clear type) 37.5 W

Tail light 5 W

Brake light 21 W

Turn signal light (front) 21 W (if equipped)

Turn signal light (rear) 21 W (if equipped)

Work light (front) 35 W (if equipped)

Work light (rear) 27 W (if equipped)

9Y1210946GEG0078US0

Checking Hydraulic Tank Suction Strainer

1. Make sure that the hydraulic tank is not damaged and the oil
does not leak out of the hydraulic tank.

2. Make sure that the water is not mixed with the oil.

3. When the suction strainer is dirty, wash it with the light oil.

(1) Hydraulic Tank (2) Suction Strainer

9Y1210946GEG0079US0

G-56

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

8. SPECIAL TOOLS

[1] SPECIAL TOOLS FOR ENGINE

(1) General

Special Use Puller Set

Code No.

• 07916-09032

Application

• Use exclusively to pull out bearing, gears and other parts with
ease.

Piston Ring Compressor

Code No.

• 07909-32111

Application

• Use exclusively to push in the piston with piston rings into the
cylinder.

GENERAL

WSM000001GEG0011US0

WSM000001GEG0012US0

Piston Ring Tool

Code No.

• 07909-32121

Application

• Use exclusively to remove or install the piston ring with ease.

WSM000001GEG0013US0

Diesel Engine Compression Tester (for Injection Nozzle)

Code No.

• 07909-30208 (Assembly)

• 07909-30934 (A to F)

• 07909-31211 (E and F)

• 07909-31231 (H)

• 07909-31251 (G)

• 07909-31271 (I)

• 07909-31281 (J)

Application

• Use to measure diesel engine compression and diagnostics of
need for major overhaul.

(1) Gauge
(2) L Joint
(3) Adaptor A
(4) Adaptor B
(5) Adaptor C
(6) Adaptor E

(7) Adaptor F
(8) Adaptor G
(9) Adaptor H
(10) Adaptor I
(11) Adaptor J

WSM000001GEG0014US0

G-57

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

GENERAL

Diesel Engine Compression Tester (for Glow Plug)

Code No.

• 07909-39081 (Assembly)

• 07909-31291 (K)

• 07909-31301 (L)

• 07909-31311 (M)

Application

• Use to measure diesel engine compression and diagnosis of
need for major overhaul.

(1) Gauge
(2) Hose Assembly
(3) L Joint

(4) Adaptor K
(5) Adaptor L
(6) Adaptor M

WSM000001GEG0096US0

Oil Pressure Tester

Code No.

• 07916-32032

Application

• Use to measure lubricating oil pressure.

(1) Gauge
(2) Cable
(3) Threaded Joint
(4) Adaptor 1

(5) Adaptor 2
(6) Adaptor 3
(7) Adaptor 4
(8) Adaptor 5

WSM000001GEG0015US0

Valve Seat Cutter

Code No.

• 07909-33102

Application

• Use to reseat valves.

Angle

• 0.79 rad (45 °)

• 0.26 rad (15 °)

Diameter

• 28.6 mm (1.13 in.)

• 31.6 mm (1.24 in.)

• 35.0 mm (1.38 in.)

• 38.0 mm (1.50 in.)

• 41.3 mm (1.63 in.)

• 50.8 mm (2.00 in.)

WSM000001GEG0016US0

Radiator Tester

Code No.

• 07909-31551

Application

• Use to check of radiator cap pressure, and leaks from cooling
system.

Remarks

• Adaptor (1) BANZAI Code No. RCT-2A-30S.

(1) Adaptor

WSM000001GEG0017US0

G-58

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

GENERAL

Connecting Rod Alignment Tool

Code No.

• 07909-31661

Application

• Use to check the connecting rod alignment.

Applicable range

• Connecting rod big end I.D.
30 to 75 mm dia. (1.2 to 2.9 in. dia.)

• Connecting rod length

65.0 to 300 mm (2.56 to 11.8 in.)

WSM000001GEG0020US0

Nozzle Tester

Code No.

• 07909-31361

Application

• Use to check the fuel injection pressure and spray pattern of
nozzle.

Measuring range

• 0 to 50 MPa (0 to 500 kgf/cm

2

, 0 to 7200 psi)

WSM000001GEG0021US0

Plastigauge

Code No.

• 07909-30241

Application

• Use to check the oil clearance between crankshaft and bearing,
etc..

Measuring range

• Green: 0.03 to 0.07 mm (0.001 to 0.003 in.)

• Red: 0.05 to 0.1 mm (0.002 to 0.006 in.)

• Blue: 0.1 to 0.2 mm (0.004 to 0.009 in.)

WSM000001GEG0022US0

Red Check

Code No.

• 07909-31371

Application

• Use to check cracks on cylinder head, cylinder block, etc..

WSM000001GEG0023US0

G-59

RTV-X900, RTV-X1120D, WSM

NOTE

KiSC issued 01, 2014 A

• The following special tools are not provided, so make them referring to the figure.

Flywheel Stopper

Application

• Use to loosen and tighten the flywheel screw.

A 200 mm (7.87 in.)

B 30 mm (1.18 in.)

C 20 mm (0.79 in.)

D 15 mm (0.59 in.)

E 8 mm (0.31 in.)

F 10 mm dia. (0.39 in. dia.)

Injection Pump Pressure Tester

Application

• Use to check fuel tightness of injection pumps.

Pressure gauge full scale:

A

More than 29.4 MPa (300 kgf/cm

B PF 1/2

C Copper gasket

D Flange (Material Steel)

E Hex. nut 27 mm (1.1 in.) across the plat

F Adhesive application

G Fillet welding on the enter circumference

H Retaining nut

I 17 mm dia. (0.67 in. dia.)

J 8.0 mm dia. (0.31 in. dia.)

K 1.0 mm (0.039 in.)

L 17 mm dia. (0.67 in. dia.)

M 6.10 to 6.20 mm dia. (0.241 to 0.244 in. dia.)

N 8.0 mm (0.31 in.)

O 4.0 mm (0.16 in.)

P 11.97 to 11.99 mm dia. (0.4713 to 0.4720 in. dia.)

Q PF 1/2

R 23 mm (0.91 in.)

S 17 mm (0.67 in.)

T 4.0 mm (0.16 in.)

U 12.00 to 12.02 mm dia. (0.4725 to 0.4732 in. dia.)

V 100 mm (3.94 in.)

W M12 × P1.5

X 5.0 mm (0.20 in.)

2

, 4270 psi)

GENERAL

9Y1210946GEG0099US0

9Y1210946GEG0082US0

9Y1210946GEG0100US0

G-60

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

(2) RTV-X900

GENERAL

Valve Guide Replacing Tool

Application

• Use to press out and press fit the valve guide.

A 220 mm (8.66 in.)

B 80 mm (3.1 in.)

C 40 mm (1.6 in.)

D 20 mm dia. (0.79 in. dia.)

E 9.960 to 9.980 mm dia. (0.3922 to 0.3929 in. dia.)

F 5.50 to 5.70 mm dia. (0.217 to 0.224 in. dia.)

G 25 mm dia. (0.98 in. dia.)

H 6.00 to 6.10 mm dia. (0.237 to 0.240 in. dia.)

I 5.0 mm (0.20 in.)

J 18 mm dia. (0.71 in. dia.)

K 10.6 to 10.7 mm dia. (0.418 to 0.421 in. dia.)

L 6.90 to 7.10 mm (0.272 to 0.279 in.)

C1 Chamfer 1.0 mm (0.039 in.)

C2 Chamfer 2.0 mm (0.079 in.)

C0.3 Chamfer 0.3 mm (0.01 in.)

9Y1210946GEG0080US0

Bushing Replacing Tool

Application

• Use to press out and press fit the bushing.

[For small end bushing]

A 145 mm (5.71 in.)

B 20 mm (0.79 in.)

C 100 mm (3.94 in.)

D 19.90 to 19.95 mm dia. (0.7835 to 0.7854 in. dia.)

E 21.90 to 21.95 mm dia. (0.8622 to 0.8641 in. dia.)

F 25 mm dia. (0.98 in. dia.)

C1 Chamfer 1.0 mm (0.039 in.)

C2 Chamfer 2.0 mm (0.079 in.)

C0.3 Chamfer 0.3 mm (0.01 in.)

a 6.3 μm (250 μin.)

b 6.3 μm (250 μin.)

[For idle gear bushing]

A 150 mm (5.91 in.)

B 23 mm (0.91 in.)

C 100 mm (3.94 in.)

D 19.90 to 19.95 mm dia. (0.7835 to 0.7854 in. dia.)

E 21.90 to 21.95 mm dia. (0.8622 to 0.8641 in. dia.)

F 25 mm dia. (0.98 in. dia.)

C1 Chamfer 1.0 mm (0.039 in.)

C2 Chamfer 2.0 mm (0.079 in.)

C0.3 Chamfer 0.3 mm (0.01 in.)

a 6.3 μm (250 μin.)

b 6.3 μm (250 μin.)

9Y1210946GEG0081US0

G-61

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

GENERAL

Crankshaft Bearing 1 Replacing Tool

Application

• Use to press out and press fit the crankshaft bearing 1.

[Press Out]

A 135 mm (5.31 in.)

B 72 mm (2.8 in.)

C 40 mm radius (1.6 in. radius)

D 10 mm (0.39 in.)

E 22 mm (0.87 in.)

F 20 mm dia. (0.79 in. dia.)

G 47.90 to 47.95 mm dia. (1.886 to 1.887 in. dia.)

H 43.90 to 43.95 mm dia. (1.729 to 1.730 in. dia.)

C1 Chamfer 1.0 mm (0.039 in.)

C2 Chamfer 2.0 mm (0.079 in.)

C0.3 Chamfer 0.3 mm (0.01 in.)

[Press Fit]

A 130 mm (5.12 in.)

B 72 mm (2.8 in.)

C 40 mm radius (1.6 in. radius)

D 9.0 mm (0.35 in.)

E 24 mm (0.94 in.)

F 20 mm dia. (0.79 in. dia.)

G 68 mm dia. (2.7 in. dia.)

H 43.90 to 43.95 mm dia. (1.729 to 1.730 in. dia.)

C1 Chamfer 1.0 mm (0.039 in.)

C2 Chamfer 2.0 mm (0.079 in.)

C0.3 Chamfer 0.3 mm (0.01 in.)

9Y1210946GEG0083US0

G-62

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

(3) RTV-X1120D

GENERAL

Valve Guide Replacing Tool

Application

• Use to press out and press fit the valve guide.

A 225 mm (8.86 in.)

B 70 mm (2.8 in.)

C 45 mm (1.8 in.)

D 20 mm dia. (0.79 in. dia.)

E 11.7 to 11.9 mm dia. (0.461 to 0.468 in. dia.)

F 6.50 to 6.60 mm dia. (0.256 to 0.259 in. dia.)

G 25 mm dia. (0.98 in. dia.)

H 6.70 to 7.00 mm dia. (0.264 to 0.275 in. dia.)

I 5.0 mm (0.20 in.)

J 20 mm dia. (0.79 in. dia.)

K 12.5 to 12.8 mm dia. (0.493 to 0.503 in. dia.)

L 8.90 to 9.10 mm (0.351 to 0.358 in.)

C1 Chamfer 1.0 mm (0.039 in.)

C2 Chamfer 2.0 mm (0.079 in.)

C0.3 Chamfer 0.30 mm (0.012 in.)

9Y1210946GEG0101US0

Bushing Replacing Tool

Application

• Use to press out and press fit the bushing.

[For small end bushing]

A 157 mm (6.18 in.)

B 24 mm (0.94 in.)

C 120 mm (4.72 in.)

D 21.8 to 21.9 mm dia. (0.859 to 0.862 in. dia.)

E 24.8 to 24.9 mm dia. (0.977 to 0.980 in. dia.)

F 20 mm dia. (0.79 in. dia.)

a 6.3 μm (250 μin.)

b 6.3 μm (250 μin.)

C1 Chamfer 1.0 mm (0.039 in.)

C2 Chamfer 2.0 mm (0.079 in.)

[For idle gear bushing]

A 196 mm (7.72 in.)

B 26 mm (1.0 in.)

C 150 mm (5.91 in.)

D 25.80 to 25.90 mm dia. (1.016 to 1.019 in. dia.)

E 28.80 to 28.90 mm dia. (1.134 to 1.137 in. dia.)

F 20 mm dia. (0.79 in. dia.)

a 6.3 μm (250 μin.)

b 6.3 μm (250 μin.)

C1 Chamfer 1.0 mm (0.039 in.)

C2 Chamfer 2.0 mm (0.079 in.)

9Y1210946GEG0102US0

G-63

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

GENERAL

Crankshaft Bearing 1 Replacing Tool

Application

• Use to press out and press fit the crankshaft bearing 1.

[Press Out]

A 135 mm (5.31 in.)

B 72 mm (2.8 in.)

C 40 mm radius (1.6 in. radius)

D 10 mm (0.39 in.)

E 24 mm (0.94 in.)

F 20 mm dia. (0.79 in. dia.)

G 51.20 to 51.40 mm dia. (2.016 to 2.023 in. dia.)

H 47.30 to 47.50 mm dia. (1.863 to 1.870 in. dia.)

C1 Chamfer 1.0 mm (0.039 in.)

C2 Chamfer 2.0 mm (0.079 in.)

C0.3 Chamfer 0.30 mm (0.012 in.)

[Press Fit]

A 135 mm (5.31 in.)

B 72 mm (2.8 in.)

C 40 mm radius (1.6 in. radius)

D 10 mm (0.39 in.)

E 24 mm (0.94 in.)

F 20 mm dia. (0.79 in. dia.)

G 68 mm dia. (2.7 in. dia.)

H 47.30 to 47.50 mm dia. (1.863 to 1.870 in. dia.)

C1 Chamfer 1.0 mm (0.039 in.)

C2 Chamfer 2.0 mm (0.079 in.)

C0.3 Chamfer 0.30 mm (0.012 in.)

9Y1210946GEG0103US0

Governor Gear Holder Bushing Replacing Tool

Application

• Use to press out and to press fit the governor gear holder
bushing.

A C1: Chamfer 1.0 mm (0.039 in.)

B 73.90 to 74.00 mm dia. (2.910 to 2.913 in. dia.)

C 69.80 to 69.90 mm dia. (2.748 to 2.751 in. dia.)

D 30 mm dia. (1.2 in. dia.)

E C2: Chamfer 2.0 mm (0.079 in.)

F 18 mm (0.71 in.)

G 150 mm (5.91 in.)

H 188 mm (7.40 in.)

9Y1210946GEG0104US0

G-64

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

GENERAL

Crank Sleeve Setter

Application

• Use to fix the crankshaft sleeve.

(1) Auxiliary Socket for Pushing

A 130 mm (5.12 in.)

B 112 mm (4.41 in.)

C 107 mm (4.21 in.)

D 82 mm (3.2 in.)

E 72 mm (2.8 in.)

F 67 mm (2.6 in.)

G 47 mm (1.8 in.)

H 36.00 to 36.20 mm (1.418 to 1.425 in.)

I 17 mm (0.67 in.)

J 5.0 mm dia. (0.20 in. dia.)

K 52 mm dia. (2.0 in. dia.)

L 40 mm dia. (1.6 in. dia.)

M 10 mm (0.39 in.)

N 33 mm (1.3 in.)

O 20 mm dia. (0.79 in. dia.)

P 40 mm dia. (1.6 in. dia.)

Q 72.10 to 72.15 mm dia. (2.839 to 2.840 in. dia.)

R 73 mm dia. (2.9 in. dia.)

S 83 mm dia. (3.3 in. dia.)

C0.3 Chamfer 0.30 mm (0.012 in.)

C1 Chamfer 1.0 mm (0.039 in.)

C5 Chamfer 5.0 mm (0.20 in.)

(2) Sleeve Guide

A 42 mm (1.7 in.)

B 12 mm (0.47 in.)

C 30 mm (1.2 in.)

D M10 × Pitch 1.25

E 2.0 mm (0.079 in.)

F 10 mm (0.39 in.)

G 2.0 mm (0.079 in.)

H 17.90 to 17.95 mm dia. (0.7048 to 0.7066 in. dia.)

I 8.0 mm dia. (0.31 in. dia.)

J 1.8 mm (0.071 in.)

K 0.09 rad (5 °)

C0.5 Chamfer 0.5 mm (0.02 in.)

9Y1210946GEG0105US0

G-65

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

[2] SPECIAL TOOLS FOR MACHINE

Tie-rod End Lifter

Code No.

• 07909-39051

Application

• Use to remove the tie-rod end with ease.

Relief Valve Pressure Tester

Code No.

• 07916-50045

Application

• This allows easy measurement of relief set pressure.

(1) Gauge (07916-50322)
(2) Cable (07916-50331)
(3) Threaded Joint (07916-50401)
(4) Threaded Joint (07916-50341)
(5) Adaptor B (M18 × P1.5)

(07916-50361)

Hydrostatic Transmission Tester and HST Adaptor Set

Code No.

• 07916-52040 (Hydrostatic Transmission Tester)

• 07916-53072 (HST Adaptor Set)

Application

• This allows easy measurement of hydrostatic transmission
pressure.

(1) Hydrostatic Transmission Tester

(07916-52040)

(2) Gasket (04714-00200)
(3) Connector 3 (07916-51331)
(4) Vacuum Gauge (07916-51331)
(5) Pressure Gauge (Low Pressure)

(07916-51301)

(6) Pressure Gauge (High Pressure)

(in Relief Valve Set Pressure
Tester)
(07916-50321)

(7) HN Tube (in Relief Valve Set

Pressure Tester) (07916-50331)

GENERAL

WSM000001GEG0029US0

(6) Adaptor C (PS3/8) (07916-50371)
(7) Adaptor D (PT1/8) (07916-50381)
(8) Adaptor E (PS3/8) (07916-50392)
(9) Adaptor F (PF1/2) (07916-62601)
(10) Adaptor 58 (PT1/4) (07916-52391)

WSM000001GEG0027US0

(8) Valve Seat Driver (07916-60841)
(9) Connector 1 (07916-60811)
(10) Connector 2 (07916-60821)
(11) Long Connector (07916-60831)
(12) Adaptor 1 (07916-52621)
(13) Adaptor 2 with Collar

(07916-52632)

(14) Adaptor 3 with Collar

(07916-52642)

(15) HST Adaptor Set

(07916-53072)

WSM000001GEG0104US0

G-66

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

Lower Arm Bush Tool

Application

• Use for removing and installing lower arm rubber bush.

GENERAL

A 256.5 mm (10.10 in.) M 2.6 mm (0.102 in.) Y 22 mm (0.866 in.)

B 262.5 mm (10.33 in.) N 34.65 mm dia. (1.364 in. dia.) Z 35 mm dia. (1.378 in. dia.)

C 12 mm dia. (0.472 in. dia.) O 14.1 mm dia. (0.555 in. dia.) a 47.6 mm dia. (1.874 in. dia.)

D 14 mm dia. (0.551 in. dia.) P 38 mm dia. (1.496 in. dia.) b 40 mm (1.575 in.)

E 22 mm dia. (0.866 in. dia.) Q 50 mm (1.969 in.) c 30 mm (1.181 in.)

F 28 mm dia. (1.102 in. dia.) R 5 mm (0.197 in.) d 24 mm (0.945 in.)

G 32 mm dia. (1.260 in. dia.) S 90 mm (3.543 in.) e 55 mm (2.165 in.)

H 15 mm (0.591 in.) T 3 mm (0.118 in.) f 16 mm (0.630 in.)

I 7 mm (0.276 in.) U 40 mm dia. (1.575 in. dia.) C0.5 Chamfer 0.5 mm (0.020 in.)

J 5.5 mm (0.217 in.) V 45.4 mm dia. (1.787 in. dia.) C1 Chamfer 1 mm (0.039 in.)

K 1 mm (0.0394 in.) W 50 mm dia. (1.969 in. dia.) C2 Chamfer 2 mm (0.079 in.)

L 112.6 mm (4.433 in.) X 21 mm (0.827 in.)

9Y1210946GEG0084US0

G-67

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

Check and High Pressure Relief Valve Assembly Tool

Application

• Use for Readjusting relief valve pressure.

GENERAL

A 30 mm (1.181 in.) N Chamfer 0.4 mm (0.157 in.) a 1.05 rad (10 °)

B 21 mm (0.827 in.) O Chamfer 3 mm (0.118 in.) b Chamfer 0.3 mm (0.012 in.)

C 1 mm (0.039 in.) P Chamfer 2 mm (0.079 in.) c 23 mm (0.906 in.)

D 0.52 rad (30 °) Q 21.4 mm (0.843 in.) d 10 mm (0.394 in.)

E 50 mm dia. (1.969 in. dia.) R 19 mm (0.748 in.) e 1 mm (0.039 in.)

F 10 mm dia. (0.394 in. dia.) S 17 mm (0.669 in.) f 6.5 mm (0.256 in.)

G

H 34 mm dia. (1.336 in. dia.) U 50 mm dia. (1.969 in. dia.) h

I M36 × 1.5 mm Pitch V 9.8 mm dia. (0.386 in. dia.) i

J 10 mm (0.394 in.) W 16 mm dia. (0.629 in. dia.)

K 16 mm (0.630 in.) X 34.5 mm dia. (1.358 in. dia.) (1) Spacer

L 41 mm (1.614 in.) Y 38 mm dia. (1.496 in. dia.) (2) Block

M Chamfer 1 mm (0.039 in.) Z 25 mm (0.984 in.) (3) Cap

9.1 to 9.3 mm dia.
(0.359 to 0.366 in.)

T 10 mm (0.393 in.) g Chamfer 0.5 mm (0.020 in.)

11.1 to 11.3 mm
(0.437 to 0.445 in.)

18.8 to 19.0 mm
(0.740 to 0.748 in.)

9Y1210946GEG0085US0

G-68

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

GENERAL

Differential Jig

Application

• Use for checking backlash and gear and spiral bevel pinion
shaft.

A 24.65 to 24.80 mm dia. (0.970 to 0.976 in. dia.)

B 122 mm (4.80 in.)

C 92.0 mm (3.62 in.)

D 62.0 mm (2.44 in.)

E 60.0 mm (2.36 in.) full spline

F 0.52 rad (30 °)

G 60.0 mm dia. (2.36 in. dia)

H 0.52 rad (30 °)

I 0.4 mm (0.016 in.)

J 080 mm (0.031 in.)

K Involute spline (refer to below)

L 23.0 mm dia. (0.906 in. dia.)

M 16.75 to 17.00 mm Hex. (0.6595 to 0.6692 in. Hex.)

C1 Chamfer 1.0 mm (0.039 in.)

(Involute Spline)

• EXTERNAL 25 × 24Z × 1.0 m × 30

Coefficient of profile shifting 0.000

Tooth form Stub tooth

Tool

Number of teeth 24

Diameter of basic pitch circle 24 mm

Tooth thickness

Module 1.00

Pressure angle 0.52 rad (30 °)

Grade Class a

26.454 to 26.541 mm

Over pitch diameter

(1.0415 to 1.0449 in.)
(Pin diameter =

1.8 mm (0.071 in.))

9Y1210946GEG0098US0

G-69

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

Rear Shock Absorber Spring Compressor 1

GENERAL

A 35 mm (1.4 in.) I 16.5 mm (0.65 in.) Q 60 mm (2.4 in.)

B 58.5 mm (2.3 in.) J 4.6 mm (0.18 in.) R 51 mm (2.0 in.)

C 13 mm (0.51 in.) K 120 mm (4.72 in.) R3 Radius 3.0 mm (0.12 in.)

D 25 mm (0.98 in.) L 106 mm (4.17 in.) R10 Radius 10 mm (0.39 in.)

E 150 mm (5.91 in.) M 102 mm (4.02 in.) R12.5 Radius 12.5 mm (0.492 in.)

F 30 mm (1.2 in.) N 10.5 mm (0.413 in.) C20 Chamfer 20 mm (0.79 in.)

G 7.1 mm (0.28 in.) O 3.0 mm (0.12 in.)

H 31.8 mm dia. (1.25 in. dia.) P 76 mm (3.0 in.)

9Y1210946GEG0086US0

G-70

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

Rear Shock Absorber Spring Compressor 2

GENERAL

A 15.9 mm dia. (0.626 in. dia.) G 10 mm (0.39 in.) M 25 mm (0.98 in.)

B 70 mm (2.8 in.) H 21 mm (0.83 in.) C1 Chamfer 1.0 mm (0.039 in.)

C 130.4 mm (5.134 in.) I 43 mm (1.7 in.) C3 Chamfer 3.0 mm (0.12 in.)

D 15.9 mm (0.626 in.) J 4.6 mm (0.18 in.) R4.6 Radius 4.6 mm (0.18 in.)

E 0.2 rad. (9 °) K 4.6 mm (0.18 in.) R25 Radius 25 mm (0.98 in.)

F 31.8 mm (1.25 in.) L 57 mm (2.2 in.)

9Y1210946GEG0087US0

G-71

RTV-X900, RTV-X1120D, WSM

WARNING

IMPORTANT

KiSC issued 01, 2014 A

9. TIRES

[1] TYPE OF TIRES

GENERAL

To avoid serious injury:

• Do not attempt to mount a tire on a rim. This should be
done by a qualified person with the proper equipment.

• Always maintain the correct tire pressure.

• Do not use tires other than those approved by KUBOTA.

9Y1210946GEG0088US0

Tire Type and Use

(1) Heavy Duty Work Site Tire
(2) Turf Tire

(3) All Terrain Vehicle Tire

9Y1210946GEG0089US0

G-72

RTV-X900, RTV-X1120D, WSM

KiSC issued 01, 2014 A

[2] TYPE PRESSURE

GENERAL

Checking Tire Inflation Pressure

Though the tire pressure is factory-set to the prescribed level, it
naturally drops slowly in the course of time. Thus, check it everyday
and inflate as necessary.

Tire sizes Inflation Pressure

25 × 10 - 12 HDWS, Front and Rear

140 kPa (1.4 kgf/cm

25 × 10 - 12 ATV, Front and Rear

(1) Ground A: Insufficient

B: Normal
C: Excessive

2

, 20psi)25 × 12 - 12 Turf, Front and Rear

9Y1210946GEG0090US0

G-73

RTV-X900, RTV-X1120D, WSM

NOTE

KiSC issued 01, 2014 A

GENERAL

[3] VEHICLE LIMITATIONS

The KUBOTA Vehicle has been thoroughly tested for proper performance with implements sold or approved by
KUBOTA. Use with implements which are not sold or approved by KUBOTA and which exceed the maximum
specifications listed below, or which are otherwise unfit for use with the KUBOTA Vehicle may result in malfunctions
or failures of the vehicle, damage to other property and injury to the operator or others. [Any malfunctions or failures
of the vehicle resulting from use with improper implements are not covered by the warranty.]

9Y1210946GEG0091US0

Cargo bed Rear trailer hitch Front trailer hitch

Max. Cargo loading weight W1 should not
exceed "CBC" and "PCL".
PCL (Permissible Cargo load) is determined by
the following calculus equation.

PCL = PC - (operator + passenger + option +
accessory + cabin) weight

CBC (Cargo bed capacity): 500 kg (1100 lbs)
PC: Payload Capacity
option: option
accessory: accessory
cabin: 125 kg (275 lbs)

Max. rolling

weight W2

590 kg

(1300 lbs)

Max. tongue

weight W3

50 kg

(110 lbs)

Max. rolling

weight W4

295 kg

(650 lbs)

Max. tongue

weight W5

50 kg

(110 lbs)

9Y1210946GEG0092US0

[Payload Capacity (PC)]

RTV-X900 RTV-X1120D

Model

General Purpose model Worksite model Worksite model

Payload capacity 755 kg (1664 lbs) 725 kg (1598 lbs) 685 kg (1510 lbs)

Rolling weight Trailer weight + Trailer load

• Above mentioned specifications are based on level ground condition.

9Y1210946GEG0093US0

G-74

RTV-X900, RTV-X1120D, WSM

WARNING

KiSC issued 01, 2014 A

GENERAL

[4] CARGO BED

General Caution

To avoid serious injury:

• Never carry passengers in the cargo bed. They can be tossed about or even thrown off causing serious
injury or death.

• Never raise the cargo bed when it is loaded. (There is an exception. Only the vehicle equipped with
hydraulic dump may do this operation at operator's seat after appropriate confirmation of safety.)

• Driving with the cargo bed tilted may be hazardous.
Always lower the bed and lock the hydraulic lift cylinder lever (if hydraulic dump is equipped) or latch the
bed (if hydraulic dump is not equipped) before driving.

• Be careful not to put any part of your body, such as hands or arms, between the bed and vehicle.

• Drive slowly when it is loaded.

9Y1210946GEG0094US0

G-75

RTV-X900, RTV-X1120D, WSM

IMPORTANT

KiSC issued 01, 2014 A

GENERAL

Max. Cargo Load

Never carry loads exceeding cargo bed capacity and the Permissible Cargo Load (PCL).
PCL = PC - (operator + passenger + option + accessory + cabin) weight
CBC (Cargo bed capacity): 500 kg (1100 lbs)
PC: Payload Capacity
OP: Operator
PA: Passenger
option: option
accessory: accessory
cabin: 125 kg (275 lbs)

[Payload Capacity (PC)]

RTV-X900 RTV-X1120D

Model

General Purpose model Worksite model Worksite model

Payload capacity 755 kg (1664 lbs) 725 kg (1598 lbs) 685 kg (1510 lbs)

9Y1210946GEG0095US0

(RTV-X900) [Quick Reference Table for Cargo Load]

Model Occupant *1

Option +

Accessory (W)

Cargo bed

capacity

Permissible

cargo load

[ROPS type]

(OP) 95 kg (209 lbs)

General

660 kg (1460 lbs) - (W)
[Cabin type]
535 kg (1180 lbs) - (W)

Purpose
model

Worksite
model

(OP) 95 kg (209 lbs) +
(PA) 95 kg (209 lbs) =
190 kg (418 lbs)

(OP) 95 kg (209 lbs)

(OP) 95 kg (209 lbs) +
(PA) 95 kg (209 lbs) =
190 kg (418 lbs)

Blade weight
Winch weight
other option and
accessory
weight

500kg (1100 lbs)

[ROPS type]
565 kg (1250 lbs) - (W)
[Cabin type]
440 kg (970 lbs) - (W)

[ROPS type]
630 kg (1390 lbs) - (W)
[Cabin type]
505 kg (1110 lbs) - (W)

[ROPS type]
535 kg (1180 lbs) - (W)
[Cabin type]
410 kg (904 lbs) - (W)

(RTV-X1120D) [Quick Reference Table for Cargo Load]

Model Occupant *1

Worksite
model

*1: The calculation was made provided that the operator and the passenger weigh 95 kg (209 lbs) each.

• Cargo load should not exceed Cargo bed capacity and Permissible cargo load.

(OP) 95 kg (209 lbs)

(OP) 95 kg (209 lbs) +
(PA) 95 kg (209 lbs) =
190 kg (418 lbs)

Option +

Accessory (W)

Blade weight
Winch weight
other option and
accessory
weight

G-76

Cargo bed

capacity

500kg (1100 lbs)

Permissible

cargo load

[ROPS type]
590 kg (1300 lbs) - (W)
[Cabin type]
465 kg (1030 lbs) - (W)

[ROPS type]
495 kg (1090 lbs) - (W)
[Cabin type]
370 kg (816 lbs) - (W)

9Y1210946GEG0096US0

RTV-X900, RTV-X1120D, WSM

WARNING

KiSC issued 01, 2014 A

[5] SHOCK ABSORBERS

GENERAL

Shock Absorber Spring Adjustment

To avoid serious injury:

• For shock absorber spring adjustment. (See page 3-S3,
5-S5.)

The front and rear shock absorber springs can be adjusted for

different riding and loading condition.

Position Spring Load

1 Stronger Heavy

2 ↑↑

3 (default) I I

4 ↓↓

5 Weaker Light

9Y1210946GEG0097US0

G-77

1 ENGINE

KiSC issued 01, 2014 A

MECHANISM

KiSC issued 01, 2014 A

CONTENTS

1. ENGINE BODY ........................................................................................................................... 1-M1

[1] RTV-X900 (D902)................................................................................................................. 1-M1

(1) Half-floating Head Cover ................................................................................................ 1-M1

(2) Closed Breather..............................................................................................................1-M1

(3) Piston.............................................................................................................................. 1-M2

(4) Oil Pan............................................................................................................................ 1-M2

[2] RTV-X1120D (D1105) .......................................................................................................... 1-M2

(1) Closed Breather..............................................................................................................1-M2

(2) Governor......................................................................................................................... 1-M3

2. LUBRICATING SYSTEM ............................................................................................................1-M5

3. COOLING SYSTEM ................................................................................................................... 1-M6

4. FUEL SYSTEM........................................................................................................................... 1-M7