Kubota M135X-S (Supplement) Tractor Workshop Manual - PDF DOWNLOAD

WORKSHOP MANUAL

TRACTOR

M135X-S (SUPPLEMENT)

KiSC issued 07, 2009 A

TO THE READER In this section, the main additional function and altered position of M135X-S tractor from M135X tractor.

As for the items which are not explained in this section, refer to M100X, M110X, M126X and M135X workshop manual (9Y021-02691).

This Workshop Manual tells the servicing personnel about the mechanism, servicing and maintenance of the M135X-S. It contains 4 parts: "Information", "General", "Mechanism" and "Servicing".

Q Information This section contains information below.

• Safety First • Safety Decal • Specification • Dimension Q General This section contains information below.

• Maintenance Check List • Check and Maintenance • Special Tools Q Mechanism This section contains information on the structure and the function of the unit. Before you continue with the subsequent sections, make sure that you read this section.

Refer to the latest version of Workshop Manual (Code No. 9Y021-01870 / 9Y021-18200) for the diesel engine / tractor mechanism that this workshop manual does not include.

Q Servicing This section 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.

July, 2009 © KUBOTA Corporation 2009

KiSC issued 07, 2009 A

SI INFORMATION

KiSC issued 07, 2009 A

INFORMATION CONTENTS 1.

2.

3.

4.

SAFETY FIRST ............................................................................................................................SI-1 SAFETY DECALS ........................................................................................................................SI-4 SPECIFICATIONS........................................................................................................................SI-5 DIMENSIONS ...............................................................................................................................SI-6

KiSC issued 07, 2009 A

INFORMATION

M135X-S, WSM

1. SAFETY FIRST SAFETY FIRST • This symbol, the industry's "Safety Alert Symbol", is used throughout this manual and on labels on the machine itself to warn of the possibility of personal injury. Read these instructions carefully.

• It is essential that you read the instructions and safety regulations before you attempt to repair or use this unit.

DANGER • Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING • Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION • Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

IMPORTANT • Indicates that equipment or property damage could result if instructions are not followed.

NOTE • Gives helpful information.

WSM000001INI0001US1

BEFORE YOU START SERVICE • Read all instructions and safety instructions in this manual and on your machine safety decals.

• Clean the work area and machine.

• Park the machine on a stable and level ground, and set the parking brake.

• Lower the implement to the ground.

• Stop the engine, then remove the key.

• Disconnect the battery negative cable.

• Hang a "DO NOT OPERATE" tag in the operator station.

WSM000001INI0010US1

START SAFELY • Do not do the procedures below when you start the engine.

– short across starter terminals – bypass the safety start switch • Do not alter or remove any part of machine safety system.

• Before you start the engine, make sure that all shift levers are in neutral positions or in disengaged positions.

• Do not start the engine when you stay on the ground.

Start the engine only from operator's seat.

WSM000001INI0015US0

SI-1

KiSC issued 07, 2009 A

INFORMATION

M135X-S, WSM

OPERATE SAFELY • Do not use the machine after you consume alcohol or medication or when you are tired.

• Put on applicable clothing and safety equipment.

• Use applicable tools only. Do not use alternative tools or parts.

• When 2 or more persons do servicing, make sure that you do it safely.

• Do not operate below the machine that only a jack holds. Always use a safety stand to hold the machine.

• Do not touch the hot parts or parts that turn when the engine operates.

• Do not remove the radiator cap when the engine operates, or immediately after it stops. If not, hot water can spout out from the radiator. Only remove the radiator cap when it is at a sufficiently low temperature to touch with bare hands. Slowly loosen the cap to release the pressure before you remove it fully.

• Released fluid (fuel or hydraulic oil) under pressure can cause damage to the skin and cause serious injury. Release the pressure before you disconnect hydraulic or fuel lines. Tighten all connections before you apply the pressure.

• Do not open a fuel system under high pressure.

The fluid under high pressure that stays in fuel lines can cause serious injury. Do not disconnect or repair the fuel lines, sensors, or any other components between the fuel pump and injectors on engines with a common rail fuel system under high pressure.

• Put on an applicable ear protective device (earmuffs or earplugs) to prevent injury against loud noises.

• Be careful about electric shock. The engine generates a high voltage of more than DC100 V in the ECU and is applied to the injector.

WSM000001INI0012US1

PREVENT A FIRE • Fuel is very flammable and explosive under some conditions. Do not smoke or let flames or sparks in your work area.

• To prevent sparks from an accidental short circuit, always disconnect the battery negative cable first and connect it last.

• The battery gas can cause an explosion. Keep the sparks and open flame away from the top of battery, especially when you charge the battery.

• Make sure that you do not spill fuel on the engine.

WSM000001INI0005US1

SI-2

KiSC issued 07, 2009 A

INFORMATION

M135X-S, WSM

KEEP A GOOD AIRFLOW IN THE WORK AREA • If the engine is in operation, make sure that the area has good airflow. Do not operate the engine in a closed area. The exhaust gas contains poisonous carbon monoxide.

WSM000001INI0006US1

DISCARD FLUIDS CORRECTLY • Do not discard fluids on the ground, down the drain, into a stream, pond, or lake. Obey related environmental protection regulations when you discard oil, fuel, coolant, electrolyte and other dangerous waste.

WSM000001INI0007US1

PREVENT ACID BURNS • Keep electrolyte away from your eyes, hands and clothing. Sulfuric acid in battery electrolyte is poisonous and it can burn your skin and clothing and cause blindness. If you spill electrolyte on yourself, clean yourself with water, and get medical aid immediately.

WSM000001INI0008US1

PREPARE FOR EMERGENCIES • Keep a first aid kit and fire extinguisher ready at all times.

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

WSM000001INI0009US1

SI-3

KiSC issued 07, 2009 A

INFORMATION

M135X-S, WSM

2. SAFETY DECALS The following safety decals (pictorial safety labels) are installed on the machine. If a decal becomes damaged, illegible or is not on the machine, replace it. The decal part number is listed in the parts list.

WSM000001INI0014US0

9Y1210410INI0001US0

SI-4

KiSC issued 07, 2009 A

INFORMATION

M135X-S, WSM

3. SPECIFICATIONS Model

M135X-S

Model

V6108-TIE3

Type

Direct injection, W/turbocharger, water-cooled, 4-cycle diesel

Number of cylinder

4

Total displacement

6124 cm3 (374 cu.in.)

Bore and stroke

Engine

118 × 140 mm (4.65 × 5.51 in.)

Net power

100.7 kW (135 HP)*

PTO power (factory observe)

88.0 kW (118 HP)* / 2200 min-1 (rpm) 323 N·m (33.0 kgf·m, 238 lbf·ft) / 1500 min-1 (rpm)

Maximum torque Battery capacity

12 V, 160 Ah at 20 hours, 1090CCA

Fuel

Diesel fuel No. 1 [below −10 °C (14 °F], Diesel fuel No. 2-D [above −10 °C (14 °F)]

Fuel tank capacity

190 L (50.2 U.S.gal, 41.8 Imp.gals)

Engine oil capacity

14.6 L (15.4 U.S.qts, 12.8 Imp.qts)

Coolant capacity

14.6 L (15.4 U.S.qts, 12.8 Imp.qts)

Overall length

Dimensions

4350 mm (171.3 in.)

Overall width (min. tread)

2180 mm (85.8 in.)

Overall height

2725 mm (107.3 in.)

Wheel base Tread

2680 mm (105.5 in.)

Front

1775 to 1875 mm (69.9 to 73.8 in.)

Rear

1590 to 2085 mm (62.6 to 82.1 in.)

Crop clearance

615 mm (24.2 in.)

Weight

4860 kg (10714 lbs) Standard tire size

Traveling system

Front

14.9R24

Rear

18.4R38

Clutch

Multiple wet disc, Electronic Hydraulically operated

Steering

Hydrostatic power steering

Braking system

Hydraulically operated wet disk

Differential

Bevel gears with differential gear lock (Front, Rear)

Hydraulic control system

Electronic draft control

Pump capacity

77.2 L (20.4 U.S.gals, 17.0 Imp.gals) / min.

Three point hitch

SAE Category 2 At lift points**

Hydraulic system

Max. lifting force

2635 kg (5809 lbs) at lower link end with links horizontal

24 in. behind lift points

2360 kg (5203 lbs)

Remote hydraulic control

Two remote valve with detent and self-canceling 19.7 MPa (201 kgf/cm2 , 2857 psi)

System pressure Traction system PTO system

•

Live PTO (Independent)

Swinging drawbar, adjustable in direction Direction of turning

Clockwise, viewed from tractor rear

Standard PTO

6 splines : 540 min-1 / 1994 min-1 21 splines : 1000 min-1 / 2050 min-1

NOTE *Manufacture's estimate ** At lower link and with links horizontal.

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

9Y1210410INI0002US0

SI-5

KiSC issued 07, 2009 A

INFORMATION

M135X-S, WSM

4. DIMENSIONS

9Y1210410INI0003US0

SI-6

KiSC issued 07, 2009 A

SG GENERAL

KiSC issued 07, 2009 A

GENERAL CONTENTS 1. LUBRICANTS, FUEL AND COOLANT....................................................................................... SG-1 2. MAINTENANCE.......................................................................................................................... SG-4 3. CHECK AND MAINTENANCE ................................................................................................... SG-5 [1] CHECK POINT OF EVERY 100 HOURS ............................................................................. SG-5 [2] CHECK POINT OF EVERY 1500 HOURS ........................................................................... SG-6 [3] CHECK POINT OF EVERY 2 YEARS.................................................................................. SG-7 4. SPECIAL TOOLS ....................................................................................................................... SG-8 [1] SPECIAL TOOLS FOR TRACTOR ...................................................................................... SG-8

KiSC issued 07, 2009 A

GENERAL

M135X-S, WSM

1. LUBRICANTS, FUEL AND COOLANT No.

1

Place

M135X-S

Lubricants, fuel and coolant

Fuel

190 L 50.2 U.S.gals 41.8 Imp.gals

Cooling system

14.6 L 15.4 U.S.qts 12.8 Imp.qts

Recovery tank

1.5 L 1.6 U.S.qts 1.4 Imp.qts

Washer liquid

1.3 L 1.4 U.S.qts 1.1 Imp.qts

Automobile washer liquid

2

3

Capacity

• No. 2-D diesel fuel • No. 1-D diesel fuel if temperature is below –10 °C (14 °F)

Fresh clean soft water with anti-freeze

4

Engine crankcase (with filter)

14.6 L 15.4 U.S.qts 12.8 Imp.qts

Engine oil API Service Classification: CF or CI-4 [External EGR type engine] • 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 or 15W-40

5

Transmission case

60 L 63.4 U.S.qts 52.8 Imp.qts

KUBOTA UDT or SUPER UDT fluid*

Brake oil (reservoir and lines)

0.3 L 0.3 U.S.qts 0.3 Imp.qts

KUBOTA UDT or SUPER UDT fluid* or Turbine oil 32 (See below) regular type, multipurpose straight mineral oil Mobil DTE Oil #32 TEXACO Regal Oil #32 CHEVRON -GST Oil #32 TERESSO OIL #32 Never use automotive brake oil.

Front differential case oil

13.0 L 13.7 U.S.qts 11.4 Imp.qts

Front axle gear case oil

4.5 L 4.8 U.S.qts 4.0 Imp.qts

6

7

KUBOTA UDT or SUPER UDT fluid* or SAE80, SAE90 gear oil

NOTE • *KUBOTA original transmission hydraulic fluid.

SG-1

KiSC issued 07, 2009 A

GENERAL

M135X-S, WSM

Greasing No.

8

Place

No. of greasing point

Top link

2

Lift rod

3

Front wheel case support

2

Front axle support

2

Steering joint shaft

1

Assist cylinder (if equipped)

2

Suspension cylinder

2

Suspension arm

2

Universal joint

4

Battery terminal

2

Capacity

Until grease overflows

Type of grease

Multipurpose type grease

A small amount

NOTE • *KUBOTA original transmission hydraulic fluid.

9Y1210410GEG0001US0

SG-2

KiSC issued 07, 2009 A

GENERAL

M135X-S, WSM

NOTE 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).

Fuel used

Engine oil classification (API classification) Oil class of engines except external EGR

High Sulfur Fuel (≥ 500 ppm)

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))

Low Sulfur Fuel (< 500 ppm) or Ultra Low Sulfur Fuel (< 15 ppm)

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

Oil class of engines with external EGR

—

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 tractor.

Fuel • Cetane number of 45 minimum. Cetane number greater then 50 is preferred, especially for temperatures below −20 °C (−4 °F) or elevations above 1500 m (5000 ft).

• If diesel fuel with sulfur content greater than 0.5 % sulfur content in used, reduce the service interval for engine oil and filter by 50%.

• DO NOT use diesel fuel with sulfur content greater than 1.0 %.

• Diesel fuels specified to EN 590 or ASTM D975 are recommended.

• No.2-D is a distillate fuel of lower volatility for engine in industrial and heavy mobile service. (SAE J313 JUB87) • Since this engine adopts EPA Tier 4 and Interim Tier 4 standards, the use of low sulfur fuel or ultra low sulfur fuel is mandatory in EPA regulated area (North America). Therefore, please use No.2-D S500 or S15 diesel fuel as an alternative to No.2-D, or use No.1-D S500 or S15 diesel fuel as an alternative to No.1-D if outside air temperature is below −10 °C (14 °F).

Transmission oil • The oil used to lubricate the transmission is also used as hydraulic fluid. To insure proper operation of the hydraulic system and 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.

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

9Y1210269GEG0003US0

SG-3

KiSC issued 07, 2009 A

GENERAL

M135X-S, WSM

2. MAINTENANCE Service Interval No.

Item

50

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

Since then

ReferImporence tant page

every 100 Hr

SG-5

1 Greasing

Check

2 Accumulator

Check

every 1500 Hr

SG-6

3 Front suspension hose

Replace

every 2 years

SG-7

,

,

,

,

,

,

,

9Y1210410GEG0002US0

SG-4

KiSC issued 07, 2009 A

GENERAL

M135X-S, WSM

3. CHECK AND MAINTENANCE CAUTION • Be sure to check and service the tractor on a flat place with engine shut off, the parking brake on and chock the wheels.

9Y1210269GEG0005US0

[1] CHECK POINT OF EVERY 100 HOURS Lubricating Grease Fitting 1. Apply a small amount of multipurpose grease to the following points every 100 hours.

(1) Grease Fitting (Front Axle Support) (4) Grease Fitting (Front Axle Support) (2) Grease Fitting (5) Grease Fitting (Universal Joint) (Suspension Cylinder) (RH, LH) (3) Grease Fitting (Suspension Arm) (RH, LH) 9Y1210410GEG0006US0

SG-5

KiSC issued 07, 2009 A

GENERAL

M135X-S, WSM

[2] CHECK POINT OF EVERY 1500 HOURS Checking Accumulator Gas Pressure 1. Remove the accumulator cap (3).

2. Set the accumulator pressure reducer (4) to the accumulator (1).

Condition : Temperature 20 °C (68 °F) Accumulator for cylinder extension gas pressure Factory spec.

Accumulator for cylinder descent gas pressure

2.90 to 3.00 MPa 29.6 to 30.5 kgf/cm2 421 to 435 psi 1.60 to 1.70 MPa 16.4 to 17.3 kgf/cm2 232 to 246 psi

• In order that the recommended pre-charge pressure are maintained even at relatively high operating temperatures, the pre-charge pressure P0 charge for charging and testing a cold accumulator must be selected as follows : Pc=Pr × [(T1 + 273) ÷ (T2 + 273)] T1=Precharge Temperature (°C) T2=Operating Temperature (°C) Pc=Pr × [(T1 + 459.67) ÷ (T2 + 459.67)] T1=Precharge Temperature (°F) T2=Operating Temperature (°F) Pc=Compensation Pressure Pr=Reading Pressure (1) Accumulator for Cylinder Extension (3) Accumulator Cap (2) Accumulator for Cylinder Descent (4) Pressure Reducer 9Y1210410GEG0003US0

SG-6

KiSC issued 07, 2009 A

GENERAL

M135X-S, WSM

[3] CHECK POINT OF EVERY 2 YEARS Replacing Front Suspension Hoses CAUTION To avoid personal injury : • The front suspension control system is working when the engine is running. In the ON mode, the LOCK mode or the AUTO LOCK mode the control system will subtlety change the machines height at start up or as weight changes when implements are attached. These subtle movements can be unexpected. Before starting it, make sure the area near the machine is clear of all persons and objects.

1. Start the engine.

2. Hold down the top (Firm mode) or the bottom (Soft mode) of the ride condition damper switch (1) to the second stage for more than 3 seconds, the buzzer starts peeping and the suspension indicator (2) starts flashing. (Two or so flashes every second), then the machine gets in the Manual Control Mode 3. Hold down the bottom (Soft mode) of the ride condition damper switch (1) to the second stage until the suspension cylinder descent to the end.

4. Stop the engine.

5. Remove the battery under cover.

6. To release the accumulator oil pressure and the suspension cylinder pressure, loosen the lock nuts (4) and pressure releasing valves (3) by 3 turns.

IMPORTANT • The fluid is returned from the circuit to the tank and prevent discharge of fluid during hydraulic pressure inspection and repairs by three pressure releasing valve.

7. After releasing the pressure, retighten the pressure releasing valves (3) and the lock nuts (4) at the specified torque.

8. Renew the front suspension hoses (5).

9. Attach the battery under cover.

10. Restart the engine.

11. Hold down the top (Firm mode) or the bottom (Soft mode) of the ride condition damper switch (1) to the second stage for more than 3 seconds, the buzzer starts peeping and the suspension indicator (2) starts flashing. (Two or so flashes every second) Then the machine gets in the Manual Control Mode.

12. Hold down the top (Firm mode) of the ride condition damper switch (1) to the second stage, and extend the suspension cylinder to the end.

13. Hold down the bottom (Soft mode) of the ride condition damper switch (1) to the second stage, and retract the suspension cylinder to the end.

Lock nut

7.8 to 9.8 N·m 0.80 to 0.99 kgf·m 5.8 to 7.2 lbf·ft

Pressure releasing valve

4.9 to 6.9 N·m 0.50 to 0.70 kgf·m 3.7 to 5.0 lbf·ft

Tightening torque

(1) (2) (3) (4) (5)

Ride Condition Damper Switch Suspension Indicator Pressure Releasing Valve Lock Nut Front Suspension Hose

(A) "PRESS DOWN TO THE SECOND STAGE"p

9Y1210410GEG0004US0

SG-7

KiSC issued 07, 2009 A

GENERAL

M135X-S, WSM

4. SPECIAL TOOLS [1] SPECIAL TOOLS FOR TRACTOR Bushing Replacing Tool Application • Use to replace the front axle frame bushing.

(1) Bushing Replacing Tool-A

(2) Bushing Replacing Tool-B

(3) Bushing Replacing Tool-C

(4) Bushing Replacing Tool-D 9Y1210410GEG0012US0

(1) Bushing Replacing Tool-A A

120 mm dia. (4.72 in. dia.)

B

25 mm dia. (0.98 in. dia.)

C

15 mm (0.59 in.)

C1

Chamfer 1 mm (0.04 in.)

Material : S45C 9Y1210363GEG0036US0

SG-8

KiSC issued 07, 2009 A

GENERAL

M135X-S, WSM

(2) Bushing Replacing Tool-B [For Front Axle Frame 1] A

74.970 to 75.000 mm dia. (2.9516 to 2.9527 in. dia.)

B

26.000 to 26.021 mm dia. (1.0237 to 1.0244 in. dia.)

C

100 mm dia. (3.94 in. dia.)

D

40 mm (1.6 in.)

E

10 mm (0.39 in.)

R0.4

0.4 mm radius (0.02 in. radius)

C0.5

Chamfer 0.5 mm (0.02 in.)

C1

Chamfer 1 mm (0.04 in.)

Material : S45C-D

[For Front Axle Frame 2] (For Bushing) A

39.950 to 39.975 mm dia. (1.5729 to 1.5738 in. dia.)

B

26.000 to 26.021 mm dia. (1.0237 to 1.0244 in. dia.)

C

64.85 to 64.90 mm dia. (2.554 to 2.555 in. dia.)

D

28 mm (1.6 in.)

E

10 mm (0.39 in.)

R0.4

0.4 mm radius (0.02 in. radius)

C0.5

Chamfer 0.5 mm (0.02 in.)

C1

Chamfer 1 mm (0.04 in.)

Material : S45C-D

(For Bushing) A

89.965 to 90.000 mm dia. (3.5420 to 3.5433 in. dia.)

B

26.000 to 26.021 mm dia. (1.0237 to 1.0244 in. dia.)

C

94.793 to 94.880 mm dia. (3.7320 to 3.7354 in. dia.)

D

40 mm (1.6 in.)

E

10 mm (0.39 in.)

R0.4

0.4 mm radius (0.02 in. radius)

C0.5

Chamfer 0.5 mm (0.02 in.)

C1

Chamfer 1 mm (0.04 in.)

Material : S45C-D

(For Oil Seal) A

89.965 to 90.000 mm dia. (3.5420 to 3.5433 in. dia.)

B

26.000 to 26.021 mm dia. (1.0237 to 1.0244 in. dia.)

C

99.793 to 99.880 mm dia. (3.9289 to 3.9322 in. dia.)

D

40 mm (1.6 in.)

E

10 mm (0.39 in.)

R0.4

0.4 mm radius (0.02 in. radius)

C0.5

Chamfer 0.5 mm (0.02 in.)

C1

Chamfer 1 mm (0.04 in.)

Material : S45C-D 9Y1210410GEG0005US0

SG-9

KiSC issued 07, 2009 A

GENERAL

M135X-S, WSM

(3) Bushing Replacing Tool-C A

15 mm (0.59 in.)

B

380 mm (15.0 in.)

C

230 mm (9.06 in.)

D

24 mm dia. (0.94 in. dia.)

E

TR24 × P5.0

F

35 mm (1.4 in.)

G

25 mm (0.98 in.)

R1

1 mm radius (0.04 in. radius) Material : S45C-D 9Y1210363GEG0035US0

(4) Bushing Replacing Tool-D A

60.00 to 60.10 mm dia.

(2.363 to 2.366 in. dia.)

B

25.94 to 26.96 mm dia.

(1.0213 to 1.0220 in. dia.)

C

35 mm dia. (1.4 in. dia.)

D

40 mm (1.6 in.)

E

20 mm (0.79 in.)

F

100 mm (3.94 in.)

R1

1 mm radius (0.04 in. radius)

C1

Chamfer 1 mm (0.04 in.)

Material : S45C-D 9Y1210363GEG0034US0

SG-10

KiSC issued 07, 2009 A

GENERAL

M135X-S, WSM

Hydraulic Cylinder Piston Sealing Tool Application • Tool (a) : Use for installing the position seals to the piston.

• Tool (b) : Use for installing the position to the cylinder.

Cylinder Size : 60 mm (2.36 in) A

80 √

B

0.16 rad (9.0 °)

C

60.18 mm (2.369 in.)

D

61.18 mm (2.409 in.)

E

42 mm (1.7 in.)

F

10 mm (0.39 in.)

G

58.5 mm (2.30 in.)

H

14 mm (0.55 in.)

I

35 mm (1.4 in.)

J

0.12 rad (7.0 °)

K

60.0 mm (2.36 in.)

L

68.9 mm (2.71 in.)

9Y1210410GEG0007US0

SG-11

KiSC issued 07, 2009 A

GENERAL

M135X-S, WSM

Accumulator Gas Charge Kit Application • Use to charge nitrogen gas to accumulator.

(Reference) Those tools are provided by HYDAC TECHNOLOGY GMBH. (HYDAC Universal Charging and Testing Unit FPU-1) Reference web page http://www.hydacusa.com/accum/accum.htm • Adaptors (3) are for nitrogen bottles from different countries, so that it is necessary to select the adapter as shown in the chart below.

Country

Adaptor

HYDAC / part No.

USA

G4

236373

Canada

G4

236373

France

G3

2103421

Germany

G1

Already fitted to hose

G2

236376

G3

2103421

Spain

• Charging hose length 2.5 m (98 in.).

(1) Pressure Reducer (2) Charging Hose

(3) Adaptor (4) Operator's Manual 9Y1210410GEG0008US0

(1) Pressure Reducer

A

M28 × P1.5

E

110 mm (4.33 in.)

B

60 mm (2.4 in.)

F

56 mm (2.2 in.)

C

63 mm dia. (2.5 in. dia.)

G

M14 × P1.5

D

47 mm dia. (1.8 in. dia.)

9Y1210410GEG0009US0

SG-12

KiSC issued 07, 2009 A

GENERAL

M135X-S, WSM

(2) Charging Hose A

W24.32 × 1/14"

B

M14 × P1.5

C

2.5 m (98 in.)

9Y1210410GEG0010US0

(3) Adaptor [A] G2 A

81 mm (32 in.)

B

G 5/8

C

W24.32 × 1/14"

[B] G3 A

37 mm (1.5 in.)

B

W21.8 × 1/14"

C

W24.32 × 1/14"

[C] G4 A

81 mm (32 in.)

B

W24.51 × 1/14"

C

W24.32 × 1/14" 9Y1210410GEG0011US0

SG-13

KiSC issued 07, 2009 A

S6 FRONT AXLE

KiSC issued 07, 2009 A

MECHANISM CONTENTS 1. STRUCTURE............................................................................................................................S6-M1 [1] 4-WHEEL DRIVE TYPE .....................................................................................................S6-M1 [2] FRONT SUSPENSION.......................................................................................................S6-M2

KiSC issued 07, 2009 A

FRONT AXLE

M135X-S, WSM

1. STRUCTURE The front axle supports the front of tractor and facilitates steering. The four wheel drive axle has powered front wheels.

NOTE • Refer to "6. FRONT AXLE" section in the workshop manual of tractor mechanism (Code No. 9Y021-18200).

9Y1210269FAM0001US0

[1] 4-WHEEL DRIVE TYPE

(1) (2) (3) (4) (5)

Front Axle Planetary Gear Pin 17T Planetary Gear 16T Bevel Gear Front Axle Case Support

(6) (7) (8) (9) (10)

33T Bevel Gear Differential Case Bracket (Front) Piston 35T Bevel Gear

(11) (12) (13) (14) (15)

Front Axle Case Cover 56T Internal Gear 14T Bevel Gear Bevel Gear Shaft Front Axle Case

(16) (17) (18) (19) (20)

15T Bevel Gear Differential Yoke Shaft Front Differential Case 18T Bevel Pinion Shaft Bracket (Rear)

The front axle of the 4WD is constructed as shown above. Power is transmitted from the transmission through the propeller shaft to the bevel pinion shaft (19), then to the bevel gear (16) after that to the differential gear.

The power through the differential is transmitted to the differential yoke shaft (17), and to the bevel gear shaft (14) in the front axle case (15).

The revolution is greatly reduced by the bevel gears (13), (10), then the power is transmitted to the axle (1).The differential system allows each wheel to rotate at a different speed to make turning easier.

9Y1210410FAM0001US0

S6-M1

KiSC issued 07, 2009 A

FRONT AXLE

M135X-S, WSM

[2] FRONT SUSPENSION

(1) Suspension Valve (2) Accumulator for Cylinder Extension (3) Accumulator for Cylinder Descent (4) Plate (5) Differential Gear Lock Case (6) Front Axle Case (7) Steering Cylinder (8) Main Frame

(9) (10) (11) (12) (13) (14) (15) (16)

Front Propeller Shaft Middle Propeller Shaft Rear Propeller Shaft 29T Gear for 4WD 22T Gear for Bi-speed Fuel Hose Hose (Cylinder Head) Hose (Cylinder Rod)

(17) (18) (19) (20) (21) (22) (23) (24)

Hose (Pilot) Hose (Cylinder Rod) Hose (Cylinder Head) ECU (FS) Cylinder Cylinder Pin Stroke Sensor 29T Gear for 4WD

(25) (26) (27) (28) (29) (30) (31) (32)

4WD/Bi-speed Clutch 36T Gear for Bi-speed Main Frame Pin Bush Oil Seal Front Frame Universal Joint Flange Yoke

Two suspension cylinders (21) are located under the both inside of the front frame (30).

The suspension cylinders (21) support the front wheels and stabilize the tractor body by its elongation and retraction.

Accumulator (2), (3) tied to the cylinder provides ability to hold up weight in place and the function of absorbing the shock generated when the cylinder (21) is extended or retracted. There are different size of two accumulators adapting with this suspension system.

A large size accumulator for cylinder extension (2) is located on the extension side fluid circuit of the cylinder (21), a small size accumulator for cylinder descent (3) is located on the retraction side of the cylinder (21).

Stroke sensor (23) is located under the right inside of the front frame to detect the cylinder (21) length.

When the engine is started, regardless of the suspension switch state, the cylinder (21) is automatically extended or retracted for chassis height adjustment maintaining of a neutral height position.

The ECU (FS) (20) is located under the battery and this controls the cylinder (21) through outputs to solenoids inside the suspension valves (1) based on information from the related switches and sensors.

The universal joint (31) is used due to the change in the angle of propeller shafts when acting the front suspension.

9Y1210410FAM0002US0

S6-M2

KiSC issued 07, 2009 A

SERVICING CONTENTS 1.

2.

3.

4.

TROUBLESHOOTING.............................................................................................................. S6-S1 SERVICING SPECIFICATIONS ............................................................................................... S6-S2 TIGHTENING TORQUES......................................................................................................... S6-S3 CHECKING, DISASSEMBLING AND SERVICING .................................................................. S6-S4 [1] DISASSEMBLING AND ASSEMBLING ............................................................................. S6-S4 [2] SERVICING ........................................................................................................................ S6-S8

KiSC issued 07, 2009 A

FRONT AXLE

M135X-S, WSM

1. TROUBLESHOOTING Symptom Suspension Cylinder Does not Extend or Retract Smoothly

Probable Cause

Reference Page

Solution

Suspension valve malfunctioning

Replace or adjusting

S8-S20

Clearance between the ball and the front frame plate excessive

Replace

S6-S8

Main frame bushing excessive

Replace

S6-S10

Suspension cylinder hose damaged

Replace

S8-S20

Oil filter clogged

Replace

G-19

Relief valve malfunctioning

Replace

S8-S22 9Y1210410FAS0001US0

S6-S1

KiSC issued 07, 2009 A

FRONT AXLE

M135X-S, WSM

2. SERVICING SPECIFICATIONS Item

Factory Specification

Allowable Limit

Front Axle Case Collar

Thickness

1.92 to 2.08 mm 0.0756 to 0.0818 in.

–

Front Frame Plate

Clearance

1.0 mm 0.039 in.

–

Thickness

4.5 mm 0.18 in.

–

0 mm 0 in.

2.0 mm 0.079 in.

1.92 to 2.08 mm 0.0756 to 0.0818 in.

1.5 mm 0.059 in.

0.57 mm 0.0224 in.

–

Concave Depth Thrust Collar

Thickness

Front Bracket and Rear Bracket Bushing

Alloy Thickness

Inner Ring

O.D.

89.970 to 90.000 mm 3.5422 to 3.5433 in.

–

Pinion Shaft Case

O.D.

74.970 to 75.000 mm 2.9516 to 2.9527 in.

–

Front Wheel Case Bushing

Alloy Thickness

0.57 mm 0.0224 in.

–

Main Frame Pin

O.D.

33.970 to 34.000mm 1.3374 to 1.3385 in.

33.000 mm 1.2992 in.

Main Frame

I.D.

39.961 to 40.000mm 1.5733 to 1.5748 in.

– 9Y1210410FAS0002US0

S6-S2

KiSC issued 07, 2009 A

FRONT AXLE

M135X-S, WSM

3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified.

Item

N·m

kgf·m

lbf·ft

124 to 147

12.6 to 15.0

91.2 to 108

48 to 55

4.9 to 5.7

36 to 41

Front axle pivot adjusting screw lock nut

98.0 to 147

10.0 to 14.9

72.3 to 108

Main frame mounting screw (M18, 9T)

344 to 402

35.0 to 41.0

254 to 296

Flange yoke mounting screw (M14, 7T) Drive case mounting screw (M10, 7T)

9Y1210410FAS0003US0

S6-S3

KiSC issued 07, 2009 A

FRONT AXLE

M135X-S, WSM

4. CHECKING, DISASSEMBLING AND SERVICING [1] DISASSEMBLING AND ASSEMBLING Propeller Shaft 1. Remove the front cover (1) and the rear cover (3).

2. Remove the flange yoke mounting screw (6) and slide out the middle propeller shaft (2) rear ward.

3. Remove the circlip (9) and the flange yoke (4).

(When reassembling) • When connecting the middle propeller shaft (2) and flange yoke (4), align the grease nipples (11) as shown in the figure.

• Grease to the grease nipples (11).

(1) (2) (3) (4) (5) (6)

Front Cover Middle Propeller Shaft Rear Cover Flange Yoke Flange Yoke Screw

(7) Universal Joint (8) Drive Shaft (9) Circlip (10) Drive Case (11) Grease Nipple (12) Yoke Pipe 9Y1210410FAS0004US0

S6-S4

KiSC issued 07, 2009 A

FRONT AXLE

M135X-S, WSM

Drive Case 1.

2.

3.

4.

5.

Drain the transmission oil.

Remove the drive case (7).

Remove the oil seal (1) and the circlip (11).

Remove the plug (6) and slide out the drive shaft (9) forward.

Remove 29T gear (2), 22T gear (4), collar (3), bearing (5) and bearing (8).

(When reassembling) • Apply liquid gasket (Three Bond 1206D or equivalent) to joint face of the clutch housing case and the drive case.

• Replace the oil seal (1) with new one.

• Apply transmission fluid to the new oil seal (1).

Transmission fluid

Capacity

60.0 L 63.4 U.S.qts 52.8 Imp.qts

Tightening torque

Drive case mounting screw (M10, 7T)

48 to 55 N·m 4.9 to 5.7 kgf·m 36 to 41 lbf·ft

(1) (2) (3) (4) (5) (6)

Oil Seal 29T Gear Collar 22T Gear Bearing Plug

(7) (8) (9) (10) (11)

Drive Case Bearing Drive Shaft Bearing Circlip 9Y1210410FAS0005US0

Preparation for Removing the Front Axle CAUTION • The front suspension control system is working when the engine is running. In the ON mode, the LOCK mode or the AUTO LOCK mode the control system will subtly change the machines height at start up or as weight changes when implements are attached. These subtle movements can be unexpected. Before starting it, make sure the area near the machine is clear of all persons and objects.

1. Remove the propeller shaft. (See page S6-S4.)

2. Start the engine.

3. Hold down the top (Firm mode) or the bottom (Soft mode) of the ride condition damper switch (1) to the second stage for more than 3 seconds, the buzzer starts peeping and the suspension indicator (2) starts flashing. (Two or so flashes every second) Then the machine gets in the Manual Control Mode.

4. Hold down the top (Firm mode) of the ride condition damper switch (1) to the second stage, and extend the suspension cylinder to the end.

5. Stop the engine.

6. Set the disassembling stands (3) under the clutch housing case and the front frame.

7. Remove the front wheels.

(1) (2) (3) (4)

Ride Condition Damper Switch Suspension Indicator Disassembling Stand Front Frame

(A) "PRESS DOWN TO THE SECOND STAGE"

9Y1210410FAS0006US0

S6-S5

KiSC issued 07, 2009 A

FRONT AXLE

M135X-S, WSM

Front Axle Case CAUTION • The front suspension control system is working when the engine is running. In the ON mode, the LOCK mode or the AUTO LOCK mode the control system will subtly change the machines height at start up or as weight changes when implements are attached. These subtle movements can be unexpected. Before starting it, make sure the area near the machine is clear of all persons and objects.

IMPORTANT • Loosen the lock nut (2) and the pressure releasing valve (1) returns the fluid from the suspension valve, accumulators and the suspension cylinders to the tank (transmission).

1. To release the pressure of the accumulator and the suspension cylinder, loosen the lock nut (2) and the pressure releasing valve (1) by 3 turns.

2. After 30 seconds or more, remove the steering hose (7), the front differential gear lock hose (8), the breather hose (5), the clamp (3) and the stroke sensor linkage (13).

3. Set nylon sling (9) to the front axle case (10) as shown in the figure.

4. Hang the front axle case (10) a little.

5. Remove the pin (6), (12).

6. Slide the front axle case (10) rearward and land it on the ground.

NOTE • Be sure to remove the stroke sensor linkage (13) due to prevent the damage to the stroke sensor (14).

(1) (2) (3) (4) (5) (6) (7) (8)

Pressure Releasing Valve Lock Nut Clamp Suspension Cylinder Breather Hose Cylinder Pin Steering Hose Front Differential Gear Lock Hose

(9) (10) (11) (12) (13) (14) (15)

Nylon Sling Front Axle Case Disassembling Stand Main Frame Pin Stroke Sensor Linkage Stroke Sensor Ball 9Y1210410FAS0007US0

S6-S6

KiSC issued 07, 2009 A

FRONT AXLE

M135X-S, WSM

Main Frame 1. Loosen the adjusting screw (1).

2. Remove the main frame 1 (4) and main frame 2 (6) mounting screw (5).

3. Slide out the main frame 2 (6) from the front axle case.

(When reassembling) • Loosen the lock nut (2), and the adjusting screw (1), then tighten the adjusting screw (1) 1/6 turn. Re-tighten the lock nut (2).

Lock nut (2)

98.0 to 147 N·m 10.0 to 14.9 kgf·m 72.3 to 108 lbf·ft

Main frame mounting screw (5) (M18, 9T)

344 to 402 N·m 35.0 to 41.0 kgf·m 254 to 296 lbf·ft

Tightening torque

(1) Adjusting Screw (2) Lock Nut (3) Ball

(4) Main Frame 1 (5) Screw (6) Main Frame 2 9Y1210410FAS0008US0

Propeller Shaft 1. Remove the circlip (3) and slide out the propeller shaft (7).

2. Remove the oil seal (11), the circlip (10) and the bearing (9).

(When reassembling) • Replace oil seal (11) with new one.

• Apply grease to the coupling (1) and the oil seal (11).

• Be sure to install the thrust collars (2).

(1) (2) (3) (4) (5) (6)

Coupling Thrust Collar Circlip Bearing Circlip Main Frame 2

(7) (8) (9) (10) (11)

Propeller Shaft Circlip Bearing Circlip Oil Seal 9Y1210410FAS0009US0

S6-S7

KiSC issued 07, 2009 A

FRONT AXLE

M135X-S, WSM

[2] SERVICING Clearance between Main Frame Ball and Plate 1. Measure the depth of the plate (2) concave.

2. If the depth of the plate (2) concave is too large, replace the plate (2) to the other plate (2).

(When reassembling) • After replacing the plates, grease to the grease nipple (3).

(Reference) Depth of the plate (2) concave

Plate (2) thickness (1) Ball (2) Plate

Factory spec.

0 mm 0 in.

Allowable limit

2.0 mm 0.079 in.

Factory spec.

4.5 mm 0.18 in.

(3) Grease Nipple 9Y1210410FAS0010US0

S6-S8

KiSC issued 07, 2009 A

FRONT AXLE

M135X-S, WSM

Front and Rear Bracket Bushing 1. Visually inspect the DX bushing for signs of wear or damage.

(The DX bushing tends to show concentrated wear.)

2. If the DX bushing is worn beyond the alloy portion "A", replace it.

Front bracket and rear bracket bushing

Alloy thickness "A"

0.57 mm 0.0224 in.

Inner ring O.D.

Factory spec.

89.970 to 90.000 mm 3.5422 to 3.5433 in.

Pinion shaft case O.D.

Factory spec.

74.970 to 75.000 mm 2.9516 to 2.9527 in.

(1) Front Bracket Bushing (2) Rear Bracket Bushing (3) Main Frame 2

A : Thickness

9Y1210410FAS0011US0

S6-S9

KiSC issued 07, 2009 A

FRONT AXLE

M135X-S, WSM

Thrust Collar Thickness 1. Measure the thickness of the thrust collar.

2. If the measurement is less than the allowable limit, replace it.

Factory spec.

1.92 to 2.08 mm 0.0756 to 0.0818 in.

Allowable limit

1.5 mm 0.059 in.

Thrust collar thickness

(1) Thrust Collar 9Y1210410FAS0012US0

Main Frame Bushing 1. Visually inspect the DX bushing for signs of wear or damage.

(The DX bushing tends to show concentrated wear.)

2. If the DX bushing is worn beyond the alloy portion "A", replace it.

Front wheel case bushing

Alloy thickness "A"

0.57 mm 0.0224 in.

Main frame I.D.

Factory spec.

39.961 to 40.000 mm 1.5733 to 1.5748 in.

(1) Main Frame Bushing

A : Thickness 9Y1210410FAS0013US0

Main Frame Pin 1. Measure the main frame pin O.D..

2. If the main frame pin O.D. exceeds the allowable limit, replace the main frame pin.

Factory spec.

33.970 to 34.000 mm 1.3374 to 1.3385 in.

Allowable limit

33.000 mm 1.2992 in.

Main frame pin O.D.

(1) Main Frame Pin 9Y1210410FAS0014US0

S6-S10

KiSC issued 07, 2009 A

S8 HYDRAULIC SYSTEM

KiSC issued 07, 2009 A

MECHANISM CONTENTS 1.

2.

3.

4.

STRUCTURE............................................................................................................................S8-M1 SUSPENSION CYLINDER POSITION.....................................................................................S8-M2 HYDRAULIC CIRCUIT .............................................................................................................S8-M3 COMPONENTS ........................................................................................................................S8-M5 [1] HYDRAULIC PUMP ...........................................................................................................S8-M5 [2] FLOW PRIORITY VALVE...................................................................................................S8-M5 [3] SUSPENSION CYLINDER .................................................................................................S8-M6 [4] SUSPENSION VALVE .......................................................................................................S8-M7 (1) Suspension Valve.........................................................................................................S8-M7 (2) Safety Valve .................................................................................................................S8-M9 (3) Pilot Check Valve and Check Valve ...........................................................................S8-M10 (4) Orifice .........................................................................................................................S8-M11 (5) Variable Orifice ...........................................................................................................S8-M12 (6) Double Check Valve ...................................................................................................S8-M15 (7) Main Relief Valve........................................................................................................S8-M16 (8) Relief Valve for Restricting Cylinder ...........................................................................S8-M17 (9) Pressure Releasing Valve ..........................................................................................S8-M18 (10)Main Spool .................................................................................................................S8-M19 [5] ACCUMULATOR ..............................................................................................................S8-M20

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

1. STRUCTURE

(1) Hydraulic Pump for 3-point Hitch (2) Hydraulic Pump for Power Steering / Power Shift / 4WD/Bi-speed / PTO Clutch

(3) Regulator Valve (4) Suspension Cylinder

(5) Suspension Valve (6) Accumulator for Cylinder Descent

(7) Accumulator for Cylinder Extension (8) Flow Priority Valve

The layout of the front suspension components for M135X-S Tractor is shown in the figure above.

The front suspension system consists of the suspension cylinders L.H. and R.H. (4), the suspension valve (5), the accumulator for cylinder extension (7), the accumulator for cylinder descent (6), the flow priority valve (8), the regulator valve (3) and the hydraulic pump for power steering (2).

The suspension cylinder L.H. and R.H. (4) : This cylinder is extended and retracted so that the tractor body is lifted, descended and held.

The suspension valve (5) : The suspension valve controls the fluid flow and fluid volume to the suspension cylinders (4).

The regulator valve (3) : The regulator valve devises the fluid flow into the front suspension system and the other systems.

The hydraulic pump for power steering (2) : The hydraulic pump for power steering discharges the fluid to the regulator valve.

The accumulator for cylinder extension (7) : This accumulator absorbs the shock generated in the suspension cylinder extension side.

The accumulator for cylinder descent (6) : This accumulator absorbs the shock generated in the suspension cylinder descent side.

The priority valve (8) : The priority valve devises the fluid to the suspension valve and the steering controller.

Fluid is supplied to the suspension valve by priority.

The hydraulic device and the electrical device are separately described about the front suspension system.

Please refer to this section for the hydraulic system and "S9. ELECTRICAL SYSTEM" section for the electrical system.

9Y1210410HYM0001US0

S8-M1

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

2. SUSPENSION CYLINDER POSITION

(1) Suspension Cylinder

A : Standard Position B : Floating Position

C : Lifting Position D : Lifting Range at the Front Cover Edge

E : Descending Range at the Front Cover Edge

This figure shows the suspension cylinder positions.

1) Lifting and floating position: • From standard position to maximum lifting position approx. 25 mm (0.98 in.).

• From standard position to maximum lifting position (floating position) approx. 25 mm (0.98 in.).

At floating position (at maximum descending position), the suspension does not function.

(Reference) 1) Lifting range at the front cover edge "D" : From standard position to maximum lifting position approx. 40 mm (1.6 in.).

2) Descending range at the front cover edge "E" : From standard position to maximum descending position (the maximum descending position is floating position) approx. 40 mm (1.6 in.).

9Y1210410HYM0018US0

S8-M2

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

3. HYDRAULIC CIRCUIT

(1) (2) (3) (4) (5) (6) (7) (8)

Main Relief Valve Suspension Valve Flow Priority Valve Regulator Valve Flow Priority Valve Reducing Valve Relief Valve Hydraulic Pump (for Power Steering / PTO / Power Shift / 4WD / Bi-speed / Front Suspension) (9) Accumulator for Cylinder Descent

(10) Main Spool (11) Solenoid for Lifting the Body (12) Relief Valve for Retracting Cylinder (13) Pilot Check Valve (14) Pressure Releasing Valve for Accumulator (15) Pressure Sensor (16) Suspension Cylinder (17) Solenoid for Descending the Body (18) Variable Orifice

(19) Solenoid for Middle Damping Force (20) Solenoid for Large Damping Force (21) Double Check Valve (22) Solenoid for Lock Cancellation (23) Cylinder Safety Valve (24) Accumulator for Cylinder Extension (25) Pressure Releasing valve for Cylinder Extension (26) Pressure Releasing Valve for Cylinder Descent

A: B: C: D:

To Steering Controller To Power Shift Valve To PTO Valve To Power Shift Valve for Lubricating E : To PTO Valve for Lubricating F : From Steering Controller G : To 3-point Hitch System

(To be continued)

S8-M3

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(Continued) This figure shows the hydraulic circuit for the front suspension system.

Fluid is delivered from the hydraulic pump (8) to the regulator valve (4), and then fluid is distributed to seven flow lines at the regulator valve (4). Fluid supplies to the front suspension system by two of seven flow lines.

1) Main fluid line for extending and retracting cylinder Main fluid flows to the suspension valve (2) through the flow priority valve (3). Main fluid's pressure is restricted by the main relief valve (1).

2) Pilot fluid line for controlling the suspension valves (2) Pilot fluid flows to the suspension valve (2) and control it. Pilot fluid discharge circuit consists of the valves (10), (11), (17), (18), (19), (20) and (22).

(When lifting the body) When turning the solenoid (11) to ON position, the pilot fluid flows to the main spool (10) right side and slides the main spool (10) to the left side. Then, the fluid flows through the main spool (10) to suspension cylinder (16) extension side with opening the pilot check valve (13) so that the body is lifted.

(When descending the body) When turning the solenoid (17) to ON position, the pilot fluid flows to the main spool (10) left side and slides the main spool (10) to the right side. Then, the fluid flows through the main spool (10) and the orifice to suspension cylinder (16) descent side so that the body is descended. The relief valve reduces the fluid pressure of the suspension cylinder descent side.

(When holding the body) When turning off the solenoid for descending the body (17) and the solenoid for lifting the body (11), main fluid returns to the tank from the suspension valve. Cylinder fluid is kept all the time.

Q Cylinder Safety Device 1. When the shock is generated in the suspension cylinders (16), cylinder safety valve (23) functions to prevent damages to the suspension valve (2) and the suspension cylinder (16).

2. The pressure releasing valves (14), (25) and (26) return fluid from the circuit to the tank and prevent discharge of fluid during repairs.

Q Cylinder Lock System The solenoid for lock cancellation (22) functions for releasing the suspension cylinder lock. ECU (FS) controls this solenoid (22). (Refer to "S9. ELECTRICAL SYSTEM" section.)

When turning the solenoid for releasing lock (23) to OFF position, the pilot fluid flow is blocked and the suspension cylinder (16) is locked surely.

When turning the solenoid for lock cancellation (22) to ON position, the pilot fluid flows to the double check valve (21) and opens it.

Then the cylinder extension side is connected to the accumulator (24) through the variable orifice (18), so that there is the series circuit between the accumulator (24) and the suspension cylinder (16).

Q Damping Force Controlling System The variable orifice (18) controls the damping force with 3 positions, normal (holding), the middle damping force and the large damping force.

The variable orifice (18) is controlled by the solenoids (19), (20).

ECU (FS) controls the solenoids (19), (20). (Refer to "S9. ELECTRICAL SYSTEM" section.)

When turning the solenoid for middle damping force to ON position, the pilot fluid flows to the variable orifice (18) right side and slides the variable orifice (18) to the left side.

When turning the solenoid for large damping force to ON position, the pilot fluid flows to the variable orifice (18) left side and slides the variable orifice (18) to the right side.

Q Research of Cylinder Pressure for ECU (FS) Pressure sensor (15) detects the fluid pressure of the suspension cylinder extension side and sends output signals to ECU (FS). (Refer to "S9. ELECTRICAL SYSTEM" section.)

9Y1210410HYM0002US0

S8-M4

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

4. COMPONENTS [1] HYDRAULIC PUMP Hydraulic Pumps The hydraulic pumps are pressure loading shaped gear pumps with good volumetric efficiency.

There are two hydraulic pumps. One (3) is for the power steering, the other (5) is for 3-point hitch.

Front suspension system receives the fluid from the power steering pump through the regulator valve.

Condition • Engine speed : Maximum • Oil temperature : 45 to 55 °C (113 to 131 °F) Pump for power steering

Factory spec.

(1) Delivery Pipe (2) Delivery Hose (3) Pump for Power Steering

Above 60.0 L/min.

15.8 U.S.gals/min.

13.2 Imp.gals/min.

(4) PTO Clutch Valve (5) Pump for 3-Point Hitch 9Y1210410HYM0003US0

[2] FLOW PRIORITY VALVE Flow Priority Valve The flow priority valve (8) is a flow divider that divides the flow from the regulator valve and actuates the power steering circuit and front suspension circuit simultaneously.

Especially, the fluid flows to suspension valve port SV by priority devices.

The fluid from pump port P flows to suspension valve port SV through orifice X. The negative pressure happens on the orifice X right side.

This pressure pushes the spool (3) in the right direction, and restricts the amount of fluid flow to the suspension valve port SV. And then the power steering port PS is opened, and remaining oil flows through the port PS. (Reference) Oil flow to SV (Suspension valve) at rated pressure (1) (2) (3) (4) (5) (6) (7) (8)

Factory spec.

Valve Body Line Filter Spool Plug Plug Spring Plug Flow Priority valve

2.3 to 2.7 L/min.

0.61 to 0.71 U.S.gals/min.

0.51 to 0.59 Imp.gals/min.

P : Pump Port (from Regulator Valve) PS : Power Steering Port SV : Suspension Valve Port X : Orifice

9Y1210410HYM0004US0

S8-M5

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

[3] SUSPENSION CYLINDER Suspension Cylinder Two suspension cylinders (1) are provided at the main frame (4).

The suspension cylinders (1) extend and retract, so that the main frame (4) pivots to lift and descend the tractor body. They are holding the tractor gross weight.

The suspension cylinders (1) are connected to the suspension valve through the hydraulic hose. They are controlled by the suspension valve.

(1) Suspension Cylinder (2) Main Frame Bracket (3) Cylinder Lower Pin

(4) Main Frame (5) Main Frame Pin (6) Cylinder Pin 9Y1210410HYM0005US0

S8-M6

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

[4] SUSPENSION VALVE (1) Suspension Valve Suspension Valve The suspension valve (12) controls the suspension cylinder motion, and is connected to suspension cylinders, flow priority valve, the regulator valve and transmission case with hydraulic hoses.

This valve consists of the parts (1), (2), (3), (4), (5), (6), (7), (8), (9), (10) and (11).

(1) Variable Orifice : This valve switches the damping force of the suspension cylinders with 3 positions.

(2) Double Check Valve : This valve locks the suspension function.

(3) Safety Valve : This valve protects the suspension valve and the suspension cylinder when impacting the shock load at the suspension cylinders (13).

(4) Main Relief Valve : This valve regulates the front suspension system pressure.

(5) Main Spool : This spool switches the cylinder action with 3 positions, neutral (Holding), extension and descent.

(6) Pilot Check Valve : This valve prevents the fluid of the suspension cylinder descent side from flowing to the suspension cylinder extension side.

(7) Pressure Releasing Valve : This valve releases the fluid (of accumulator, suspension cylinder and suspension valve) to the tank.

(8) Orifice : This orifice squeezes the fluid flow to adjust the fluid flow velocity.

(9) Relief Valve for Retracting Cylinder : This valve adjusts the fluid pressure of the suspension cylinder descent side.

(10) Check Valve : This valve pressure prevents the fluid of the suspension cylinder from flowing to the suspension cylinder reverse side.

(11) Solenoid : This solenoid has the functions below.

(1) (2) (3) (4) (5) (6) (7) (8) (9)

Variable Orifice Double Check Valve Safety Valve Main Relief Valve Main Spool Pilot Check Valve Pressure Releasing Valve Orifice Relief Valve for Retracting Cylinder (10) Check Valve (11) Solenoid (12) Suspension Valve

(A) (B) (C) (D) (E)

Middle Damping Force Large Damping Force Lock Cancellation Lifting the Body Descent the Body

(To be continued)

S8-M7

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(Continued) (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) (15)

(A) (B) (C) (D) (E)

Variable Orifice Double Check Valve Safety Valve Main Relief Valve Main Spool Pilot Check Valve Pressure Releasing Valve Orifice Relief Valve for Retracting Cylinder Check Valve Solenoid Suspension Valve Suspension Cylinder Accumulator for Cylinder Extension Accumulator for Cylinder Descent Middle Damping Force Large Damping Force Lock Cancellation Lifting the Body Descent the Body

Solenoid : There are five solenoids. Those solenoids function as follows.

(A) Middle Damping Force, (B) Large Damping Force : These solenoids control the damping force in the suspension cylinders.

(C) Lock Cancellation : This solenoid controls the double check valve opened-closed operation.

(D) Lifting the Body, (E) Descending the Body : This solenoid controls the suspension cylinder motion, extension or descent.

9Y1210410HYM0006US0

S8-M8

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(2) Safety Valve Safety Valve The safety valve (6) has a fast response, to make it ideal for relieving shock pressure caused by heavy implement bounce and thereby reducing the possibility of damage to hydraulic devices (suspension cylinder, cylinder hoses, etc.).

If pressure in the cylinder becomes too great, oil pressure forces the valve (5) off the seat of valve body (4), compressing the springs (2) and allows oil to flow to the transmission case through the T port.

(Reference) Condition • Oil temperature : 45 to 55 °C (113 to 131 °F) Safety valve

(1) (2) (3) (4) (5) (6) (7) (8)

Factory spec.

Adjusting Plug Spring Lock Nut Valve Body Valve Safety Valve Suspension Cylinder Suspension Valve

23.0 MPa 235 kgf/cm2 3340 psi [A] Safety Valve "CLOSED" [B] Safety Valve "OPENED" P : P Port (from Suspension Cylinder) T : T Port (to Transmission Case) 9Y1210410HYM0008US0

S8-M9

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(3) Pilot Check Valve and Check Valve Pilot Check Valve and Check Valve Object of check valve is shown as follows.

1. Lock the suspension cylinders (8) and prevent the fluid leakage in the suspension valve circuit.

2. Prevent the power steering pump damage if the pressure in the suspension cylinders (8) becomes too great.

When fluid is injected into the cylinder, the check valve (6) is opened by the pressure of the fluid.

(1) (2) (3) (4) (5)

Plug Spring Poppet Seat Pilot Piston

(6) (7) (8) (9)

Check Valve Pilot Check Valve Suspension Cylinder Suspension Valve 9Y1210410HYM0009US0

S8-M10

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(4) Orifice Orifice The orifice prevents the suspension cylinder's rapid motion to absorb the shock and makes the suspension cylinder's motion smooth.

(1) Orifice (2) Orifice

(3) Pilot Check Valve (4) Suspension Cylinder 9Y1210410HYM0010US0

S8-M11

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(5) Variable Orifice Variable Orifice The spool position controls the amount of the fluid flow velocity from the suspension cylinder extension side to accumulator.

The amount of fluid flow from suspension cylinder extension side to accumulator is controlled by the variable orifice position.

There are three spool positions (A), (B) and (C) by action condition of solenoids (11), (12).

Moreover, the amount of fluid flow changes with the variable orifice's action onto position of the spool.

Spool position

Solenoid (11)

Solenoid (12)

Damping Force

(A)

OFF

OFF

Small

(B)

ON

OFF

Middle

(C)

OFF

ON

Large

The passage of fluid between spool (5) and valve body position changes, and the flowing quantity of fluid is squeezed.

The size of fluid passage is the order of (A), (B) and (C). The state of (A) position is almost opening completely.

The ratio of damping changes depending on the transfer speed of fluid from suspension cylinder to accumulator.

Therefore, the state of (C) reduce the large damping force to its maximum.

(1) (2) (3) (4) (5) (6) (7) (8) (9)

Plug Spring Spring Seat O-ring Spool Adjusting Plug Lock Nut Adjusting Screw Accumulator for Cylinder Extension (10) Variable Orifice (11) Solenoid (12) Solenoid

(A) Standard Position (B) Middle Damping Force Position (C) Large Damping Force Position (a) From Suspension Cylinder Extension Side (b) To Accumulator for Cylinder Extension

(To be continued)

S8-M12

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(Continued) Moreover, the amount of flowing fluid changes with the variable orifice's action onto position of the spool.

Variable orifice position

Solenoid (11)

Solenoid (12)

(A)

OFF

OFF

Small

(B)

ON

OFF

Middle

(C)

OFF

ON

Large

(9) Accumulator for Cylinder Extension (10) Variable Orifice (11) Solenoid (12) Solenoid (13) Ride Condition Damper Switch

Damping Force

(A) Standard Position (B) Middle Damping Force Position (C) Large Damping Force Position (a) From Suspension Cylinder Extension Side (b) To Accumulator for Cylinder Extension (X) Firm Mode (Y) Normal Mode (Z) Soft Mode

(To be continued)

S8-M13

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(Continued) This figure shows the relationship between the damping force (14) and the front suspension cylinder load (15).

ECU (FS) processes and calculates the front suspension cylinder load (15) from pressure switch output signal.

The lines (A), (B) and (C) in the figure indicates the variable orifice position.

(Factory spec.)

When setting the suspension switch (13) to "Soft Mode" (Z) with front suspension cylinder load (15) high condition, the variable orifice position is set to (B) automatically.

NOTE • The variable orifice changes by one stage even if the front suspension load (15) is extreme.

• "Normal Mode" (Y) is also similar.

• This control can be changed by fine-adjusting.

(See page S9-S17.)

On the other hand, when setting the suspension switch (13) to "Firm Mode" (X) with front suspension cylinder load (15) LOW condition, the variable orifice position is set to (B).

The summarizes description in this paragraph is shown as the chart below.

Ride condition damper switch position

Variable orifice position

Remarks

(X)

(B) ¥ (C)

Factory spec.

(Y)

(A) ¥ (B) ¥ (C)

Factory spec.

(Z)

(A) ¥ (B)

Factory spec.

(13) Ride Condition Damper Switch (14) Damping Force (15) Front Suspension Cylinder Load

(A) Standard Position (B) Middle Damping Force Position (C) Large Damping Force Position (X) Firm Mode (Y) Normal Mode (Z) Soft Mode 9Y1210410HYM0012US0

S8-M14

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(6) Double Check Valve Double Check Valve Double check valve (9) decides whether the suspension functions.

Double check valve (9) is opened when the solenoid (10) is turned ON as shown in the figure (A).

Double check valve (9) is closed when the solenoid (10) is turned OFF as shown in figure (B).

ECU (FS) controls the solenoid (10) by the suspension switch condition.

(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)

Plug Spring Ball Seat Ball Poppet Spool Piston Plug Double Check Valve Solenoid

(A) Double Check Valve is OPENED (B) Double Check Valve is CLOSED a : Solenoid (10) is Turned ON b : Pilot Fluid c : To Transmission (Tank) d : To Accumulator for Cylinder Extension 9Y1210410HYM0011US0

S8-M15

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(7) Main Relief Valve Main Relief Valve The main relief valve (6) controls main fluid's pressure.

The main relief valve (6) is the poppet type with piston.

This valve consists of the poppet (2) and the valve seat (1), spring (3) and shim (4).

(Reference) The main relief pressure changes by the shim (4) thickness.

Condition • Engine speed : Idling speeds • Oil temperature : 45 to 55 °C (113 to 131 °F) Main relief valve setting pressure

Factory spec.

16.7 to 17.5 MPa 171 to 178 kgf/cm2 2430 to 2530 psi

The amount of main relief valve 0.1 mm shim

Factory spec.

Approx.

0.26 MPa 2.7 kgf/cm2 38 psi

Thickness of shim

(1) (2) (3) (4) (5)

Valve Seat Poppet Spring Shim Plug

0.1 mm (0.004 in.)

0.2 mm (0.008 in.)

0.4 mm (0.02 in.)

(6) Main Relief Valve (7) Flow Priority Valve P : Pump Port 9Y1210410HYM0013US0

S8-M16

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(8) Relief Valve for Restricting Cylinder Relief Valve for Retracting Cylinder Relief valve for retracting cylinder (6) adjusts the fluid's pressure of the suspension cylinder retraction side.

Relief valve for retracting cylinder (6) consists of the parts (1), (2), (3), (4) and (5).

Condition • Engine speed : Idling speed • Oil temperature : 45 to 55 °C (113 to 131 °F) Set pressure (Relief valve for retraction side) (1) (2) (3) (4)

Valve Seat Poppet Spring Shim

Factory spec.

2.3 to 2.7 MPa 24 to 27 kgf/cm2 340 to 390 psi (5) Plug (6) Relief Valve for Retracting Cylinder 9Y1210410HYM0014US0

S8-M17

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(9) Pressure Releasing Valve Pressure Releasing Valve The function of the pressure releasing valve (5) prevents discharging fluid during front suspension system maintenance.

Three pressure releasing valves (A), (B) and (C) are attached on the suspension valve.

The structure of the pressure releasing valve is that the ball blocks the fluid circuit as shown in the figure.

When loosening the vent screw (4), the fluid is released to the tank.

(1) (2) (3) (4) (5) (6)

Vent Screw Lock Nut Washer with Rubber Ball Pressure Releasing valve Accumulator for Cylinder Extension (7) Suspension Cylinder

(A) Pressure Releasing Valve for Accumulator (B) Pressure Releasing Valve for Cylinder Descent (C) Pressure Releasing Valve for Cylinder Extension

9Y1210410HYM0016US0

S8-M18

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(10) Main Spool Main Spool The main spool (4) controls the suspension cylinder extension and descent motion.

The solenoid (5) controls the main spool (4) by the pilot fluid.

(1) Plug (2) Spring (3) Spring Seat

(4) Main Spool (5) Solenoid 9Y1210410HYM0017US0

S8-M19

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

[5] ACCUMULATOR Accumulator Fluids are practically incompressible and cannot therefore store pressure energy.

The compressibility of a nitrogen gas is utilised in hydraulic accumulators for storing fluids.

Diaphragm accumulators are based on this principle, using nitrogen as the compressible medium.

A diaphragm accumulator consists of a fluid section and a gas section with the diaphragm acting as the gas-proof screen.

The fluid section is connected to the hydraulic circuit so that the diaphragm accumulator draws in fluid when the pressure increases and the gas is compressed.

When the pressure drops, the compressed gas expands and forces the stored fluid into the circuit.

Accumulators can be used in a wide variety of applications as follows.

• Shock Absorption • Tractor Suspension • Pulsation Damping There are two different size of accumulators.

The size of the accumulator is adopted by the fluid pressure required.

The large accumulator is for cylinder extension (7) whose force is required to defeat the tractor gross weight, so that the accumulator size is large.

The small accumulator is for cylinder descent (8) whose force is required to defeat the fluid resistance only, so that the accumulator size is small.

When adjusting the accumulator gas pressure, set the gas charge kit to the accumulator and charge the nitrogen gas to the accumulator.

Condition • Oil temperature : Approx. 20 °C (68 °F) Accumulator for cylinder extension

Factory spec.

Accumulator for cylinder descent (1) (2) (3) (4) (5) (6)

S8-M20

Suspension Cylinder Fluid Accumulator Body Diaphragm (Bladder) Nitrogen gas Accumulator Oil (Mineral Oil) Plug

2.9 to 3.07 MPa 29.6 to 30.5 kgf/cm2 420 to 430 psi 1.6 to 1.7 MPa 16.4 to 17.3 kgf/cm2 232 to 246 psi (7) Accumulator for Cylinder Extension (8) Accumulator for Cylinder Descent (9) Marking (10) Suspension Valve

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(Reference) Meaning of Marking (9) Q Accumulator for cylinder extension (Big size) : 3T460-45710 ACCUMULATOR (a)

(b) (c)

(d) (e)

(f) (g) (h)

(a)

(b) (c)

(d) (e)

(f) (g) (h)

SBO210 - 1.4E1 / 663 U - 210AB029 Q Accumulator for cylinder descent (Small size) : 3T460-45720 ACCUMULATOR SBO100 - 0.7E1 / 663 U - 100AB016 (a) Series (b) Nominal volume (c) Type Weld type: E1 = Rechargeable M28 x 1.5 E2 = Sealed gas connection, with gas pre-charge as requested E3 = Rechargeable, gas valve M16 x 1.5 / M14 x 1.5 Screw type: A6 = Rechargeable M28 x 1.5, exchangeable diaphragm A3 = Gas valve M16 x 1.5 / M14 x 1.5, exchangeable diaphragm (d) Meterial code Depending on operating fluid Standard model = 112 for mineral oil (d1)(d2)(d3)

e.g. 6 6 3

(d1) Fluid connection (Upper digit) 1 = Carbon steel 3 = Stainless steel 1.4571 4 = Carbon steel with surface protection 6 = Low temperature steel (d2) Accumulator shell (Middle digit) 0 = Plastic coated 1 = Carbon steel 2 = Carbon steel with surface protection 4 = Stainless steel 1.4571 6 = Low temperature steel (d3) Diaphragm (Low digit) 2 = NBR20 (acrylonitrile butadiene) 3 = ECO (ethylene oxide epichlorohydrin) 4 = IIR (butyl) 5 = NBR21 (low temperature) 6 = FKM (fluoro rubber) 7 = Other (on request) (e) Certification code U = PED 97/23/EC For other countries see table. (f)

Permitted operating pressure [bar]

(g) Fluid connection from Standard connection = AK or AB e.g. From AK = G 3/4 (h) Pre-charge pressure P0 [bar] at 20 , must be stated separately, if required (9) Marking 9Y1210410HYM0015US0

S8-M21

KiSC issued 07, 2009 A

SERVICING CONTENTS 1.

2.

3.

4.

TROUBLESHOOTING.............................................................................................................. S8-S1 SERVICING SPECIFICATIONS ............................................................................................... S8-S2 TIGHTENING TORQUES......................................................................................................... S8-S3 CHECKING, DISASSEMBLING AND SERVICING .................................................................. S8-S4 [1] CHECKING AND ADJUSTING........................................................................................... S8-S4 (1) Pilot Pressure ............................................................................................................... S8-S4 (2) Regulator Valve Setting Pressure ................................................................................ S8-S5 (3) Suspension Valve Setting Pressure ............................................................................. S8-S6

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

1. TROUBLESHOOTING Symptom Chassis Does not Raise

Suspension Does not Work

Probable Cause

Reference Page

Solution

Transmission fluid improper or insufficient

Change or replenish

G-36

Oil filter clogged

Replace

G-19

Hydraulic pump malfunctioning

Replace

8-S20 8-S21

Suspension valve malfunctioning

Replace

S8-S20

Relief valve malfunctioning

Replace or adjust

S8-S22

Suspension cylinder damaged

Replace

S8-S26

Stroke sensor defective

Replace

S9-M11

Flow priority valve malfunctioning

Replace or adjust

S8-S25

Accumulator gas discharged

Charge

S8-S14

Suspension switch "LOCK" position

Confirm

S9-M7

Pressure sensor defective

Replace

S9-M11

Suspension valve malfunctioning

Replace

S8-S20

Solenoid valve defective

Replace

S8-S22

ECU (FS) malfunctioning

Replace

S9-M6 9Y1210410HYS0001US0

S8-S1

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

2. SERVICING SPECIFICATIONS REGULATOR VALVE Item

Factory Specification

Allowable Limit

2.75 to 2.94 MPa 28.0 to 30.0 kgf/cm2 398.3 to 426.7 psi

–

Factory Specification

Allowable Limit

2.06 to 2.25 MPa 21.0 to 23.0 kgf/cm2 298.7 to 327.1 psi

–

Factory Specification

Allowable Limit

16.7 to 17.5 MPa 171 to 178 kgf/cm2 2430 to 2530 psi

–

2.3 to 2.7 MPa 24 to 27 kgf/cm2 340 to 390 psi

–

Factory Specification

Allowable Limit

Accumulator for Cylinder Extension Condition • Oil Temperature : Approx. 20 °C (68 °F)

2.9 to 3.0 MPa 29.6 to 30.5 kgf/cm2 420 to 430 psi

–

Accumulator for Cylinder Descent Condition • Oil Temperature : Approx. 20 °C (68 °F)

1.6 to 1.7 MPa 16.4 to 17.3 kgf/cm2 232 to 246 psi

–

Regulator Valve Setting Pressure

At Maximum Engine Speed

POWER SHIFT SYSTEM Item Pilot Pressure for Suspension System

At Idling Engine Speed

SUSPENSION VALVE Item Main Relief Valve Setting Pressure Condition • Engine Speed : Above 1000 min-1 (rpm) Relief Pressure Suspension Cylinder Retract Side Condition • Engine Speed : Above 1000 min-1 (rpm) ACCUMULATOR NITROGEN GAS Item

9Y1210410HYS0002US0

S8-S2

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified.

Item

N·m

kgf·m

lbf·ft

Releasing plug

4.9 to 6.9

0.50 to 0.70

3.7 to 5.0

Lock nut

7.8 to 9.8

0.80 to 0.99

5.8 to 7.2

Accumulator for cylinder descent

200 to 230

20.4 to 23.4

148 to 169

Accumulator for cylinder extension

200 to 230

20.4 to 23.4

148 to 169

Main relief valve plug

49.0 to 68.8

5.00 to 7.01

36.2 to 50.7

Relief valve plug for retracting cylinder

49.0 to 68.8

5.00 to 7.01

36.2 to 50.7

Double check valve plug

49.0 to 68.8

5.00 to 7.01

36.2 to 50.7

Pilot check valve plug

49 to 59

5.0 to 6.0

37 to 43

Main spool plug

49 to 59

5.0 to 6.0

37 to 43

Variable orifice plug

49 to 59

5.0 to 6.0

37 to 43

39.2 to 58.8

4.00 to 5.99

29.0 to 43.3

Flow priority valve plug

9Y1210410HYS0003US0

S8-S3

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

4. CHECKING, DISASSEMBLING AND SERVICING [1] CHECKING AND ADJUSTING (1) Pilot Pressure Pilot Pressure (System Pressure) of Suspension Valve 1. Remove the floor mat and inspection plate under the mat.

2. Remove the plug "A" from the power shift valve (1).

3. Set the adaptor D (PT1/8) (Code No.: 07916-50381), threaded joint (Code No.: 07916-50341), cable (Code No.: 07916-50331) and pressure gauge (Code No.: 07916-52961).

4. Start the engine and measure the pilot pressure. (The shuttle lever and power shift lever being set at the Neutral position).

5. If pilot pressure is not within the factory specification, adjust the adjusting screw of regulator valve.

Condition • Engine speed : Idling speed • Fluid temperature : 45 to 55 °C (113 to 131 °F) Pilot pressure (System pressure)

Factory spec.

2.06 to 2.25 MPa 21.0 to 23.0 kgf/cm2 298.7 to 327.1 psi

NOTE • Apply liquid gasket (Three Bond 1324N or equivalent) to the plug when installing it.

• The suspension pilot pressure check is the same procedure of the system pressure check of power shift clutch.

(Reference) • Turn the screw (5) to clockwise direction → pressure increase • Turn the screw (5) to counterclockwise direction → pressure decrease (1) (2) (3) (4) (5) (6)

Power Shift Valve Regulator Valve Assembly Suspension Valve Hose Pressure Reducing Spool Adjusting Screw Lock Nut

A : Pilot Pressure Checking Port B : Check Port

9Y1210410HYS0004US0

S8-S4

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(2) Regulator Valve Setting Pressure Regulator Valve Setting Pressure 1. Remove the floor mat and inspection plate under the mat.

2. Remove the plug "A" and set the adaptor D (PT1/8) (Code No.: 07916-50381), threaded joint (Code No.: 07916-50341), cable (Code No.: 07916-50331) and pressure gauge (Code No.: 07916-52961).

3. Start the engine and measure the pressure.

4. If the regulating pressure is not within the factory specification, loosen the lock nut (6) and turn the screw (5) on the regulator valve (1) to adjust.

Condition • Engine speed : Maximum • Fluid temperature : 45 to 55 °C (113 to 131 °F) Regulator valve setting pressure

Factory spec.

2.75 to 2.94 MPa 28.0 to 30.0 kgf/cm2 398.3 to 426.7 psi

NOTE • Apply liquid gasket (Three Bond 1324N or equivalent) to the plug when install it.

(Reference) • Turn the screw (5) to clockwise direction → pressure increase • Turn the screw (5) to counterclockwise direction → pressure decrease (1) (2) (3) (4) (5) (6)

Regulator Valve Assembly Pressure Reducing Valve Pressure Regulating valve Flow Priority Spool Adjusting Screw Lock Nut

A : Check Plug

9Y1210410HYS0005US0

S8-S5

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(3) Suspension Valve Setting Pressure Preparation for Checking the Suspension valve Relief Pressure CAUTION To avoid personal injury : • Before the machine gets in the Manual Control Mode, make sure the area near the machine is clear of all persons and objects. Because of the hydraulic pressure in the cylinder, the machine height may change unexpectedly or the suspension cylinder adjustment control may get activated, which affects the height and/or posture of the tractor or the implement.

IMPORTANT • Prevent discharge of fluid when install and detach the pressure test equipment.

• Loosen the lock nut (3) and the pressure releasing valve (4) returns the fluid from the suspension cylinder extend side to the tank (transmission).

The tractor front end height can be raised or lowered by moving the suspension cylinder in the manual way. This is useful in attaching and detaching a front implement or front weight.

1. Start the engine.

2. Hold down the top (Firm mode) or the bottom (Soft mode) of the ride condition damper switch (1) to the second stage for more than 3 seconds, the buzzer starts peeping and the suspension indicator (2) starts flashing. (Two or so flashes every second) Then the machine gets in the Manual Control Mode.

3. Hold down the top (Firm mode) of the ride condition damper switch (1) to the second stage, and retract the suspension cylinder to the end.

4. Stop the engine.

5. Loosen the lock nut (3) and the pressure releasing valve (4) by 3 turns.

6. After releasing the pressure, retighten the pressure releasing valve (4) and the lock nut (3) at the specified torque.

7. To check the pilot pressure, remove the plug (5) and set the adapter D (PT 1/8) (Code No. : 07916-50381), threaded joint (Code No. : 07916-50341), cable (Code No. : 07916-50331) and pressure gauge (Code No. : 07916-52961) 8. When detaching the pressure check equipment, the work of the above-mention from 1 to 6 are done again.

Lock nut (3)

7.8 to 9.8 N·m 0.80 to 0.99 kgf·m 5.8 to 7.2 lbf·ft

Pressure releasing valve (4)

4.9 to 6.9 N·m 0.50 to 0.70 kgf·m 3.7 to 5.0 lbf·ft

Tightening torque

(1) (2) (3) (4) (5)

Ride Condition Damper Switch Suspension Indicator Lock Nut Pressure Releasing Valve Plug

(A) "PRESS DOWN TO THE SECOND STAGE"

(To be continued)

S8-S6

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(Continued) NOTE • The Manual Control Mode is cleared in any of the following cases.

1. Stopping the engine (Turning the key switch to OFF position).

2. Running the machine at higher than 5 km/h (3.1 mph).

• Even in the Manual Control Mode, the suspension works according to the mode selected with the suspension switch.

• With the "LOCK" mode selected, the machine height becomes stable and an implement may be easily attached and detached.

• The manual-mode raising and lowering speed varies depending on the mode selected with the suspension switch.

IMPORTANT • Do not run or operate the machine with its height raised or lowered (while the Manual Control Mode is selected).

Otherwise it may get in trouble.

9Y1210410HYS0007US0

S8-S7

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

Main Relief valve Setting Pressure Test CAUTION To avoid personal injury : • Before the machine gets in the Manual Control Mode, make sure the area near the machine is clear of all persons and objects. Because of the hydraulic pressure in the cylinder, the machine height may change unexpectedly or the suspension cylinder adjustment control may get activated, which affects the height and/or posture of the tractor or the implement.

1. Start the engine and warm up transmission fluid to the measurement condition and set the engine speed at 1000 min-1 (rpm).

2. Hold down the top (Firm mode) or the bottom (Soft mode) of the ride condition damper switch (1) to the second stage for more than 3 seconds, the buzzer starts peeping and the suspension indicator (2) starts flashing. (Two or so flashes every second) Then the machine gets in the Manual Control Mode.

3. Hold down the top (Firm mode) of the ride condition damper switch (1) to the second stage, and extend the suspension cylinder to the end.

4. Check the relief pressure while holding down the top (Firm mode) of the ride condition damper switch.

If the measurement is not within factory specification, adjust the relief pressure with adjusting shim (5).

Condition • Engine rotation speed : Above 1000 min-1 (rpm) • Oil temperature : 45 to 55 °C (113 to 131 °F) Main relief valve setting pressure

Factory spec.

16.7 to 17.5 MPa 171 to 178 kgf/cm2 2430 to 2530 psi

(Reference) Tightening torque

49.0 to 68.8 N·m 5.00 to 7.01 kgf·m 36.2 to 50.7 lbf·ft

Plug (7)

The amount of main relief valve per 0.1 mm shim

Approx.

0.26 MPa 2.7 kgf/cm2 38 psi

The types of shim

0.1 mm 0.2 mm 0.4 mm

(1) (2) (3) (4) (5) (6) (7)

Ride Condition Damper Switch Suspension Indicator Valve Seat Poppet Spring Shim Plug

(A) "PRESS DOWN TO THE SECOND STAGE" [a] Main Relief Valve

(To be continued)

S8-S8

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(Continued) NOTE • The Manual Control Mode is cleared in any of the following cases.

1. Stopping the engine (Turning the key switch to OFF position).

2. Running the machine at higher than 5km/h (3.1 mph).

• Even in the Manual Control Mode, the suspension works according to the mode selected with the suspension switch.

• With the "LOCK" mode selected, the machine height becomes stable and an implement may be easily attached and detached.

• The manual-mode raising and lowering speed varies depending on the mode selected with the suspension switch.

IMPORTANT • Do not run or operate the machine with its height raised or lowered (while the Manual Control Mode is selected).

Otherwise it may get in trouble.

9Y1210410HYS0026US0

S8-S9

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

Relief Pressure for Suspension Cylinder Retract Side IMPORTANT • Prevent discharge of fluid when install and detach the pressure test equipment.

• Loosen the lock nut (2) and the pressure releasing valve (1) by 3 turns to return the fluid from the suspension cylinder retraction side to the tank (transmission).

1. Remove the plug (4) and set the adapter D (PT 1/8) (Code No. : 07916-50381), threaded joint (Code No. : 07916-50341), cable (Code No. : 07916-50331) and pressure gauge (Code No. : 07916-52961).

2. Tighten the pressure releasing valve (1) and the lock nut (2).

Lock nut (2)

7.8 to 9.8 N·m 0.80 to 0.99 kgf·m 5.8 to 7.2 lbf·ft

Pressure releasing valve (1)

4.9 to 6.9 N·m 0.50 to 0.70 kgf·m 3.7 to 5.0 lbf·ft

Tightening torque

3. Start the engine and warm up transmission fluid to the measurement condition.

4. Set the engine rotational speed at 1000 min-1 (rpm).

5. Hold down the top (Firm mode) or the bottom (Soft mode) of the ride condition damper switch (4) to the second stage for more than 3 seconds, the buzzer starts peeping and the suspension indicator (10) starts flashing. (Two or so flashes every second) Then the machine gets in the Manual Control Mode.

6. Hold down the bottom (Soft mode) of the ride condition damper switch (4) to the second stage, and retract the suspension cylinder to the end.

7. Measure the relief pressure while holding down the bottom (Soft mode) of the ride condition damper switch (4).

8. If the relief pressure is not within the factory specification, adjust the relief pressure with changing the shim (8) thickness.

9. Stop the engine.

(1) Pressure Releasing Valve (2) Lock Nut (3) Check Plug for Cylinder Retract Side (4) Ride Condition Damper Switch (5) Valve Seat (6) Poppet (7) Spring (8) Shim (9) Plug (10) Suspension Indicator

(A) "PRESS DOWN TO THE SECOND STAGE" [a] Relief Valve for Retracting Cylinder

(To be continued)

S8-S10

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(Continued) Condition • Engine speed : Above 1000 min-1 (rpm) • Oil temperature : 45 to 55 °C (113 to 131 °F) Relief pressure for cylinder retract side

Factory spec.

2.3 to 2.7 MPa 24 to 27 kgf/cm2 340 to 390 psi

(Reference) Tightening torque

The types of shim (8)

Plug (9)

49.0 to 68.8 N·m 5.00 to 7.01 kgf·m 36.2 to 50.7 lbf·ft 0.1 mm 0.2 mm 0.4 mm 9Y1210410HYS0008US0

S8-S11

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

Checking Accumulator Nitrogen Gas Pressure CAUTION To avoid personal injury : • Before the machine gets in the Manual Control Mode, make sure the area near the machine is clear of all persons and objects. Because of the hydraulic pressure in the cylinder, the machine height may change unexpectedly or the suspension cylinder adjustment control may get activated, which affects the height and/or posture of the tractor or the implement.

1. Start the engine.

2. Hold down the top (Firm mode) or the bottom (Soft mode) of the ride condition damper switch (1) to the second stage for more than 3 seconds, the buzzer starts peeping and the suspension indicator (2) starts flashing. (Two or so flashes every second) Then the machine gets in the Manual Control Mode.

3. Hold down the bottom (Soft mode) of the ride condition damper switch (1) to the second stage, and retract the suspension cylinder to the end.

4. Stop the engine.

5. To release the accumulator fluid pressure, loosen the lock nut (4) and the pressure releasing valves (3) by 3 turns. After releasing the pressure, tighten the pressure releasing valves (3) and lock nuts (4) 6. Remove the caps (5) and loosen the plugs (6) by 1/4 turn.

7. Close the release valve (10) and set the gauge (7).

8. Loosen the spindle knob (9) until the gauge indicate the nitrogen gas pressure.

9. If the pressure is not enough, charge a nitrogen gas. (Refer to "Pre-charge Accumulator Gas".)

10. Tighten the spindle knob (9).

11. Open the release valve (10) slowly to release the pressure from the gauge (7).

NOTE • When opening the release valve (10), the small amount of oil leaks.

12. Remove the valve body (8) from the accumulator.

13. Check for gas leakages at plug of accumulator using a leak detector spray.

14. Set the caps (5).

(1) (2) (3) (4) (5) (6) (7)

Ride Condition Damper Switch Suspension Indicator Pressure Releasing Valve Lock Nut Cap Plug Gauge

(8) Valve Body (9) Spindle Knob (10) Release valve (A) "PRESS DOWN TO THE SECOND STAGE"

(To be continued)

S8-S12

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(Continued) (When reassembling) Pressure releasing valve (3)

4.9 to 6.9 N·m 0.50 to 0.70 kgf·m 3.7 to 5.0 lbf·ft

Lock nut (4)

7.8 to 9.8 N·m 0.80 to 0.99 kgf·m 5.8 to 7.2 lbf·ft

Tightening torque

(Reference) • Turn the spindle knob (9) to clockwise direction. → Valve closes.

• Turn the spindle knob (9) to clockwise direction. → Valve opens.

• Turn the release valve (10) to clockwise direction. → Valve opens.

• Turn the release valve (10) to clockwise direction → Valve closes.

Condition • Oil temperature : Approx. 20°C (68 °F) Accumulator for cylinder extension

Factory spec.

2.9 to 3.0 MPa 29.6 to 30.5 kgf/cm2 420 to 430 psi

Accumulator for cylinder descent

Factory spec.

1.6 to 1.7 MPa 16.4 to 17.3 kgf/cm2 232 to 246 psi

(Reference) • In order that the recommended pre-charge pressure are maintained even at relatively high operating temperatures, the pre-charge pressure P0 charge for charging and testing a cold accumulator must be selected as follows : Pc=Pr × [(T1 + 273) ÷ (T2 + 273)] T1=Precharge Temperature (°C) T2=Operating Temperature (°C) Pc=Pr × [(T1 + 459.67) ÷ (T2 + 459.67)] T1=Precharge Temperature (°F) T2=Operating Temperature (°F) Pc=Compensation Pressure Pr=Reading Pressure 9Y1210410HYS0010US0

S8-S13

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

Pre-charge Accumulator Gas CAUTION To avoid personal injury : • Before the machine gets in the Manual Control Mode, make sure the area near the machine is clear of all persons and objects. Because of the hydraulic pressure in the cylinder, the machine height may change unexpectedly or the suspension cylinder adjustment control may get activated, which affects the height and/or posture of the tractor or the implement.

• Only use nitrogen for charging accumulators.

• Never use oxygen for charging accumulators because of the danger of explosion.

• If the gas pressure in the nitrogen bottle is higher than the max. operating pressure of the accumulator, a gas must be fitted.

• Nitrogen and operating fluid can escape when filling or testing the accumulator due to a faulty, i.e. leaking, diaphragm. Risk to health in the case of fluids • The check valve must not be removed. The valve has a safety function for the whole charging and testing unit.

• During charging, by a compressor or nitrogen charging system connected upstream, continuous operation can lead to unacceptable increases in temperature.

• Rest periods must therefore be incorporated into the charging procedure and the gauge (FPU-1) allowed to cool down.

1. Start the engine.

2. Hold down the top (Firm mode) or the bottom (Soft mode) of the ride condition damper switch (1) to the second stage for more than 3 seconds, the buzzer starts peeping and the suspension indicator (2) starts flashing. (Two or so flashes every second) Then the machine gets in the Manual Control Mode.

3. Hold down the bottom (Soft mode) of the ride condition damper switch (1) to the second stage, and retract the suspension cylinder to the end.

4. Stop the engine.

(1) Ride Condition Damper Switch (2) Suspension Indicator

(A) "PRESS DOWN TO THE SECOND STAGE"

(To be continued)

S8-S14

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(Continued) 5. To release the accumulator fluid pressure, loosen the lock nut (4) and the pressure releasing valves (3) by 3 turns. After releasing the pressure, tighten the pressure releasing valves (3) and lock nuts (4) 6. Remove the caps (5) and slightly loosen the plugs (6) by means of an Allen key wrench (approx. 1/2 turn).

7. Place the valve body (8) onto the accumulator and screw connector (11) by hand onto accumulator gas valve. At the same time, ensure that the release valve (10) is closed to prevent the accumulator gas leakage. Turn charging unit to a position where the gauge can be easily read.

8. Open plugs (6) by turning the plugs (6) anti-clockwise with spindle knob (9). When the needle of the gauge (7) begins to move, give the spindle knob (9) another complete turn. The gauge (7) now shows the charging pressure in the accumulator.

(Reference) Condition • Oil temperature : Approx. 20°C (68 °F) Accumulator for cylinder extension

Factory spec.

2.9 to 3.0 MPa 29.6 to 30.5 kgf/cm2 420 to 430 psi

Accumulator for cylinder descent

Factory spec.

1.6 to 1.7 MPa 16.4 to 17.3 kgf/cm2 232 to 246 psi

• In order that the recommended pre-charge pressure are maintained even at relatively high operating temperatures, the pre-charge pressure P0 charge for charging and testing a cold accumulator must be selected as follows : Pc=Pr × [(T1 + 273) ÷ (T2 + 273)] T1=Precharge Temperature (°C) T2=Operating Temperature (°C) Pc=Pr × [(T1 + 459.67) ÷ (T2 + 459.67)] T1=Precharge Temperature (°F) T2=Operating Temperature (°F) Pc=Compensation Pressure Pr=Reading Pressure (3) (4) (5) (6) (7)

Pressure Releasing Valve Lock Nut Cap Plug Gauge

(8) (9) (10) (11)

Valve Body Spindle Knob Release Valve Screw Connector

(To be continued)

S8-S15

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(Continued) 9. Connect the charging hose (12) to the nitrogen bottle (13) and the valve body (8). For nitrogen bottles from other countries the appropriate adaptor is required (refer to "8.SPECIAL TOOLS" at "SG. GENERAL" section.

10. Open the shut-off valve on the nitrogen bottle, and slowly release nitrogen into the accumulator. Wait until approximately 0.1 MPa (1kgf/cm2, 10 psi) has been reached before opening the hut-off valve of the nitrogen bottle further to enable faster charging.

11. Interrupt the charging process from time to time and check the pre-charge pressure reached. Repeat this process until the required gas pre-charge pressure is achieved. After temperature equalisation has taken place, re-check the pre-charge pressure and adjust if necessary. If the pressure is too high, it can be lowered via the release valve (10).

12. If the required gas pre-charge pressure has been reached, close the plugs (6) by turning the spindle knob (9) clockwise.

13. Discharge the charging and the gauge (FPU-1) via the pressure release and remove it by loosening the connector.

14. Tighten the plugs (6) with Allen key.

15. Check for leakages on the plug (6) using a leak detector spray.

16. Install the caps (5).

NOTE • When opening the release valve (10) for releasing nitrogen gas pressure without reversing the accumulator direction, oil in the accumulator leaks.

(5) (6) (7) (8) (9)

Cap Plug Gauge Valve Body Spindle Knob

(10) (11) (12) (13)

Release Valve Screw Connector Charging Hose Nitrogen Gas Bottle

(To be continued)

S8-S16

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(Continued) (When reassembling) Pressure releasing valve (3)

4.9 to 6.9 N·m 0.50 to 0.70 kgf·m 3.7 to 5.0 lbf·ft

Lock nut (4)

7.8 to 9.8 N·m 0.80 to 0.99 kgf·m 5.8 to 7.2 lbf·ft

Accumulators

200 to 230 N·m 20.4 to 23.4 kgf·m 148 to 169 lbf·ft

Plugs (6)

20 N·m 2.0 kgf·m 15 lbf·ft

Tightening torque

(Reference) • When reassembling accumulators, use the torque wrench head (HEX.41, thickness 10 mm (0.39 in.)) (14).

• Turn the spindle knob (9) to clockwise direction. → Valve closes.

• Turn the spindle knob (9) to clockwise direction. → Valve opens.

• Turn the release valve (10) to clockwise direction. → Valve opens.

• Turn the release valve (10) to clockwise direction → Valve closes.

IMPORTANT • Check whether gas leakage occurs from the joints.

(14) Torque Wrench Head (HEX.41, Thickness 10 mm (0.39 in.))

9Y1210410HYS0011US0

S8-S17

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

Accumulator CAUTION To avoid personal injury : • Before the machine gets in the Manual Control Mode, make sure the area near the machine is clear of all persons and objects. Because of the hydraulic pressure in the cylinder, the machine height may change unexpectedly or the suspension cylinder adjustment control may get activated, which affects the height and/or posture of the tractor or the implement.

1. Start the engine.

2. Hold down the top (Firm mode) or the bottom (Soft mode) of the ride condition damper switch (1) to the second stage for more than 3 seconds, the buzzer starts peeping and the suspension indicator (2) starts flashing. (Two or so flashes every second) Then the machine gets in the Manual Control Mode.

3. Hold down the bottom (Soft mode) of the ride condition damper switch (1) to the second stage, and retract the suspension cylinder to the end.

4. Turn off the main key switch.

5. To release the accumulator fluid pressure, loosen the lock nuts (4) and the pressure releasing valves (3) by 3 turns. After releasing the pressure, retighten the pressure releasing valves (3) and lock nuts (4).

6. Remove the accumulator (6), (7).

(1) (2) (3) (4) (5)

Ride Condition Damper Switch Suspension Indicator Pressure Releasing Valve Lock Nut O-ring

(6) Accumulator for Cylinder Extension (7) Accumulator for Cylinder Descent (A) "PRESS DOWN TO THE SECOND STAGE"

(To be continued)

S8-S18

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(Continued) (When reassembling) • Apply transmission oil to the O-rings (5).

• Tighten the accumulators (6), (7) at the specified torque.

Pressure releasing valve (3)

4.9 to 6.9 N·m 0.50 to 0.70 kgf·m 3.7 to 5.0 lbf·ft

Lock nut (2)

7.8 to 9.8 N·m 0.80 to 0.99 kgf·m 5.8 to 7.2 lbf·ft

Accumulator for cylinder extension (6)

200 to 230 N·m 20.4 to 23.4 kgf·m 148 to 169 lbf·ft

Accumulator for cylinder descent (7)

200 to 230N·m 20.4 to 23.4 kgf·m 148 to 169 lbf·ft

Tightening torque

(Reference) Accumulator for cylinder extension (6) (Big size)

Accumulator for cylinder descent (7) (Small size)

A

213 to 217 mm (8.39 to 8.54 in.)

184 to 188 mm (7.25 to 7.40 in.)

B

150 to 151 mm dia.

(5.91 to 5.94 in. dia.)

106 to 107 mm dia.

(4.18 to 4.21 in. dia.)

C

G 1/2

D

M33 × P1.5

E

M28 × P1.5

F

14 to 16 mm (0.56 to 0.62 in.)

G

20 mm (0.79 in.)

H

36 mm (1.4 in.)

I

23 mm (0.91 in.)

J

Hex. 41

K

10 mm (0.39 in.)

37 mm (1.5 in.)

• When reassembling accumulators, use the torque wrench head (HEX.41, thickness 10 mm (0.39 in.)) (8).

(8) Torque Wrench Head (HEX.41, Thickness 10 mm (0.39 in.))

(a) Accumulator K : Width of Open End Spanner 9Y1210410HYS0012US0

S8-S19

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

Suspension Valve Q Preparation CAUTION To avoid personal injury : • Before the machine gets in the Manual Control Mode, make sure the area near the machine is clear of all persons and objects. Because of the hydraulic pressure in the cylinder, the machine height may change unexpectedly or the suspension cylinder adjustment control may get activated, which affects the height and/or posture of the tractor or the implement.

1. Start the engine.

2. Hold down the top (Firm mode) or the bottom (Soft mode) of the ride condition damper switch (1) to the second stage for more than 3 seconds, the buzzer starts peeping and the suspension indicator (2) starts flashing. (Two or so flashes every second) Then the machine gets in the Manual Control Mode.

3. Hold down the bottom (Soft mode) of the ride condition damper switch (1) to the second stage, and retract the suspension cylinder to the end.

4. Turn off the main key switch.

5. To release the accumulator fluid pressure, loosen the lock nuts (4) and the pressure releasing valves (3) by 3 turns. After releasing the pressure, retighten the pressure releasing valves (3) and lock nuts (4).

(1) (2) (3) (4)

Ride Condition Damper Switch Suspension Indicator Releasing Plug Lock Nut

(A) "PRESS DOWN TO THE SECOND STAGE"

(To be continued)

S8-S20

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

(Continued) Q Wiring Harness and Hydraulic Pipes 1. Remove the battery (5) and the cover (6).

2. Remove the connector from ECU (CRS) (9) and ECU (FS) (8).

3. Remove the battery under cover (7).

4. Remove the solenoids and connectors (10), (15).

5. Remove the hoses (11), (12), (13), (14), (16), (17), (18), (19).

6. Remove the screws and the suspension valve (20).

(When reassembling) Lock nut (4)

7.8 to 9.8 N·m 0.80 to 0.99 kgf·m 5.8 to 7.2 lbf·ft

Pressure releasing valve (3)

4.9 to 6.9 N·m 0.50 to 0.70 kgf·m 3.7 to 5.0 lbf·ft

Suspension cylinder hose (12), (13), (17), (18)

49 to 68 N·m 5.0 to 7.0 kgf·m 37 to 50 lbf·ft

Drain hose (16)

49 to 68 N·m 5.0 to 7.0 kgf·m 37 to 50 lbf·ft

Tightening torque

(5) (6) (7) (8) (9) (10) (11) (12)

Battery Cover Battery Under Cover ECU (FS) ECU (CRS) Solenoid Connector Drain Hose Hose for Right Cylinder Retract Side (Blue) (13) Hose for Left Cylinder Extend Side (Yellow)

(14) (15) (16) (17)

Drain Hose (Red) Pressure Sensor Connector Drain Hose Hose for Left Cylinder Retract Side (Blue) (18) Hose for Right Cylinder Extend Side (Yellow) (19) Hose for Regulator Valve Side (purple) (20) Suspension Valve 9Y1210410HYS0013US0

S8-S21

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

Disassembling Suspension Valve 1. Remove the cover (9) and belleville washer (8).

2. Remove the connector (6).

3. Remove the solenoid valves (1), (2), (3), (4), (5).

4. Remove the orifice (7).

(When reassembling) • Install the solenoid valves (1), (2), (3), (4), (5) as shown in the left figure.

• Install the cover whose ditch faces solenoid valves (1), (2), (3), (4), (5).

• Install the belleville washer (8) whose cover side faces to the cover (9).

• Take care not to damage O-ring of each solenoid.

• Be sure to reassemble each solenoid to the original position.

Position of solenoid

Color of solenoid's lead

(1)

White

(2)

Green

(3)

Red

(4)

Yellow

(5)

Black

(1) Middle Attenuation Solenoid (White) (2) Solenoid for Releasing Lock (Green) (3) Solenoid for Raising (Red) (4) High Attenuation Solenoid (Yellow) (5) Solenoid for Lowering (Black)

(6) (7) (8) (9) (10)

Connector Orifice Belleville Washer Cover Convex 9Y1210410HYS0014US0

Main Relief Valve and Relief Valve for Retracting Cylinder 1. Remove the plug (5).

2. Remove the spring (3), the poppet (2), the shims (4) and the valve seat (1).

(When reassembling) • Take care not to damage O-ring and the shims (4).

• Confirm the spring size.

Bigger one is for the main relief.

Smaller one is for cylinder retracting side.

Tightening torque

(1) (2) (3) (4) (5)

Valve Seat Poppet Spring Shim Plug

Plug (5)

49.0 to 68.8 N·m 5.00 to 7.01 kgf·m 36.2 to 50.7 lbf·ft [A] Main Relief Valve [B] Relief Valve for Retracting Cylinder

9Y1210410HYS0015US0

S8-S22

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

Double Check Valve 1. Remove the plug (8).

2. Remove the rod (6) and the piston (7).

3. Remove the plug (1), the spring (2), the valve seat (3), the ball (4) and the poppet (5).

(When reassembling) • Apply transmission fluid to the rod.

Tightening torque

(1) (2) (3) (4) (5)

49.0 to 68.8 N·m 5.00 to 7.01 kgf·m 36.2 to 50.7 lbf·ft

Plug (1), (8)

Plug Spring Valve Seat Ball Poppet

(6) (7) (8) (9)

Rod Piston Plug Double Check Valve 9Y1210410HYS0016US0

Pilot Check Valve 1. Remove the plug (1), the spring (2), the poppet (3), the valve seat (4).

2. Remove the pilot piston (5).

(When reassembling) Tightening torque

(1) Plug (2) Spring (3) Poppet

Plug (1)

49 to 59 N·m 5.0 to 6.0 kgf·m 37 to 43 lbf·ft (4) Valve Seat (5) Pilot Piston (6) Pilot Check Valve 9Y1210410HYS0017US0

Orifice 1. Disassemble the suspension valve (1).

2. Remove the pilot check valve (2).

3. Remove the orifice (Diameter 0.7) (4) and the orifice (Diameter 1.1) (3).

(When reassembling) • Confirm the hole diameter, 0.7 mm and 1.1 mm.

• Be sure to set O-ring to the suspension valve (1).

(1) Suspension Valve (2) Pilot Check Valve

(3) Orifice (Diameter 1.1) (4) Orifice (Diameter 0.7) 9Y1210410HYS0018US0

S8-S23

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

Pressure Releasing Valve 1. Loosen the lock nut (3).

2. Remove the pressure releasing plug (4).

3. Remove the balls (1).

(When reassembling) Pressure releasing plug (4)

4.9 to 6.9 N·m 0.50 to 0.70 kgf·m 3.7 to 5.0 lbf·ft

Lock nut (3)

7.8 to 9.8 N·m 0.80 to 0.99 kgf·m 5.8 to 7.2 lbf·ft

Tightening torque

(1) Ball (2) Washer with Rubber

(3) Lock Nut (4) Pressure Releasing Plug 9Y1210410HYS0019US0

Main Spool 1. Remove the plug (1).

2. Remove the spring (2) and the spring seat (3).

3. Remove the main spool (4) from the suspension valve.

(When reassembling) • Be sure to move the main spool (4) smoothly.

• Apply transmission fluid to O-ring.

Tightening torque

Plug (1)

(1) Plug (2) Spring

49 to 59 N·m 5.0 to 6.0 kgf·m 37 to 43 lbf·ft (3) Spring Seat (4) Main Spool 9Y1210410HYS0020US0

Variable Orifice 1. Remove the plug (6), the spring seat (3) and the spring (2).

2. Remove the spool (5) from the suspension valve.

3. Remove the plug (1), the spring (2) and the spring seat (3).

NOTE • Do not loosen the adjusting screw (7).

(When reassembling) • Be sure to turn the smaller projection of the spool (5) to the adjusting plug (6).

• Be sure to move the spool (5) smoothly.

• Apply transmission fluid to O-ring.

Tightening torque

(1) (2) (3) (4)

Plug Spring Spring Seat O-ring

Plug (1), (6)

49 to 59 N·m 5.0 to 6.0 kgf·m 37 to 43 lbf·ft (5) Spool (6) Adjusting Plug (7) Adjusting Screw 9Y1210410HYS0021US0

S8-S24

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

Flow Priority Valve 1. Remove the plug (7) and the spool (6) from the flow priority valve body (12).

2. Check whether contamination disturbs the fluid hole the spool (6).

3. Check whether the spool (6) can be moved smoothly.

4. Check and clean the line filter (11).

(When reassembling) Tightening torque

(1) (2) (3) (4) (5) (6)

Circlip Plug O-ring Spring Plug Spool

39.2 to 58.8 N·m 4.00 to 5.99 kgf·m 29.0 to 43.3 lbf·ft

Plug (7)

(7) (8) (9) (10) (11) (12)

Plug O-ring O-ring O-ring Line Filter Flow Priority Valve Body 9Y1210410HYS0022US0

S8-S25

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

Suspension Cylinder CAUTION To avoid personal injury : • Before the machine gets in the Manual Control Mode, make sure the area near the machine is clear of all persons and objects. Because of the hydraulic pressure in the cylinder, the machine height may change unexpectedly or the suspension cylinder adjustment control may get activated, which affects the height and/or posture of the tractor or the implement.

1. Set the disassembling stand under the front frame.

2. Remove the front tires.

IMPORTANT • Prevent discharge of fluid when removing the cylinder hoses and the suspension cylinders.

3. Start the engine.

4. Hold down the top (Firm mode) or the bottom (Soft mode) of the ride condition damper switch (1) to the second stage for more than 3 seconds, the buzzer starts peeping and the suspension indicator (2) starts flashing. (Two or so flashes every second) Then the machine gets in the Manual Control Mode.

5. Hold down the bottom (Soft mode) of the ride condition damper switch (1) to the second stage, and retract the suspension cylinder to the end.

6. Turn off the main key switch.

7. Loosen the lock nuts (4) and the pressure releasing valves (3) by 3 turns to return the fluid the suspension valve to the tank (transmission).

8. After releasing the pressure, retighten the pressure releasing valves (3) and the lock nuts (4) at the specified torque.

9. Remove the cylinder hoses, the cylinder pins (6), (10) and the suspension cylinders (7).

(When reassembling) • Apply molybdenum disulfide (Three Bond 1901 or equivalent) to the pins (6), (10).

• Grease to the grease nipples.

Lock nut (4)

7.8 to 9.8 N·m 0.80 to 0.99 kgf·m 5.8 to 7.2 lbf·ft

Pressure releasing valve (3)

4.9 to 6.9 N·m 0.50 to 0.70 kgf·m 3.7 to 5.0 lbf·ft

Tightening torque

(1) (2) (3) (4) (5) (6)

Ride Condition Damper Switch Suspension Indicator Pressure Releasing Valve Lock Nut Stopper Pin

(7) (8) (9) (10)

Suspension Cylinder Collar Grease Nipple Pin

(A) "PRESS DOWN TO THE SECOND STAGE" 9Y1210410HYS0023US0

S8-S26

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

Disassembling Suspension Cylinder 1. Remove the liquid gasket from top of rod cover (9).

2. Slightly tap-in the rod cover (9) to inside, and remove the ring spring (10) by using the small screwdriver.

3. If the ring spring (10) cannot be removed by above-mentioned method, remove it by the following procedure.

– Carefully clamp the cylinder tube (1) in a visa.

– Drill approx. 2.5 mm (0.1 in.) diameter hole on the cylinder tube (position A) just over the ring spring (10) as shown in figure.

– Use a small screwdriver and remove the ring spring (10).

Simultaneously support this action by pushing from the outside of the cylinder tube (1) with another small screwdriver or similar tool.

4. Slide out the rod (14) assembly.

5. Remove the circlip (2) and the lock nut (3).

6. Remove the piston (5) and the rod cover (9).

(When reassembling) • Apply transmission fluid to the piston (5), rod cover (9) and cylinder tube (1) • Take care not to damage the O-ring, backup ring and seal.

• Apply liquid gasket (Three Bond 1206C or equivalent) to the top of rod cover (9), while pressing the rod cover (9) against ring spring (10).

• After reassembling the cylinder, be sure to close the drilled hole by liquid gasket.

• Bleed the suspension cylinder. (Refer to next page.)

(1) (2) (3) (4) (5) (6) (7) (8)

Cylinder Tube Circlip Lock Nut O-ring Piston Piston Packing Packing Back Up Ring

(9) (10) (11) (12) (13) (14)

Rod Cover Ring Spring DU Bush Dust Seal O-ring Rod

A : Position for Drilling L : 6.0 mm (0.236 in.)

9Y1210410HYS0024US0

S8-S27

KiSC issued 07, 2009 A

HYDRAULIC SYSTEM

M135X-S, WSM

Air Bleeding CAUTION To avoid personal injury : • Before the machine gets in the Manual Control Mode, make sure the area near the machine is clear of all persons and objects. Because of the hydraulic pressure in the cylinder, the machine height may change unexpectedly or the suspension cylinder adjustment control may get activated, which affects the height and/or posture of the tractor or the implement.

1. After tightening the pressure releasing valves (1) and lock nuts (2), start the engine.

2. Hold down the top (Firm mode) or the bottom (Soft mode) of the ride condition damper switch (3) to the second stage for more than 3 seconds, the buzzer starts peeping and the suspension indicator (4) starts flashing. (Two or so flashes every second) Then the machine gets in the Manual Control Mode.

3. Hold down the top (Firm mode) of the ride condition damper switch (3) to the second stage, and extend the suspension cylinder to the end.

4. Hold down the bottom (Soft mode) of the ride condition damper switch (3) to the second stage, and retract the suspension cylinder to the end.

Pressure releasing plug (1)

4.9 to 6.9 N·m 0.50 to 0.70 kgf·m 3.7 to 5.0 lbf·ft

Lock nut (2)

7.8 to 9.8 N·m 0.80 to 0.99 kgf·m 5.8 to 7.2 lbf·ft

Tightening torque

(1) (2) (3) (4)

Pressure Releasing Valve Lock Nut Ride Condition Damper Switch Suspension Indicator

(A) "PRESS DOWN TO THE SECOND STAGE"

9Y1210410HYS0028US0

Installing Piston Seal 1. Place the slide jig (2) on the piston (3).

2. Install the piston seal (1) to the piston using the slide jig. (Refer to "SPECIAL TOOLS" section.)

3. Compression the piston seal to the correct size by installing the piston into the correcting jig (4).

NOTE • Do not turn (roll) the piston seal as you install it.

(1) Piston Seal (2) Slide Jig

(3) Piston (4) Correcting Jig 9Y1210410HYS0027US0

S8-S28

KiSC issued 07, 2009 A

S9 ELECTRICAL SYSTEM

KiSC issued 07, 2009 A

MECHANISM CONTENTS 1. GENERAL.................................................................................................................................S9-M1 [1] FRONT SUSPENSION OUTLINE ......................................................................................S9-M1 [2] FRONT SUSPENSION CONTROL SYSTEM ....................................................................S9-M3 [3] ECU (SUB) CIRCUIT........................................................................................................S9-M12

KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

1. GENERAL The Wiring Diagram and Electrical Circuit for M135X-S Tractor are included in M100X, M110X, M126X and M135X Work Shop Manual (Code No. 9Y121-02691).

Please refer to "9. ELECTRICAL SYSTEM" section.

9Y1210410ELM0012US0

[1] FRONT SUSPENSION OUTLINE

(1) ECU (SUB) : ECU for 3-point Hitch Control System (2) ECU (MAIN) : ECU for Power Shift System (3) ECU (CRS) : ECU for Common Rail System (4) Meter Panel

(5) ECU (FS): ECU for Front Suspension System (6) Accumulator (Cylinder Extension Side) (7) Accumulator (Cylinder Retraction Side) (8) Suspension Valve

(9) Solenoid Valve for Lifting (10) Solenoid Valve for Descending (11) Variable Orifice (12) Double Check Valve

(13) (14) (15) (16) (17)

Pressure Sensor Stroke Sensor Suspension Cylinder Suspension Switch Ride Condition Damper Switch

(To be continued)

S9-M1

KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

(Continued)

(15) Suspension Cylinder

Q Outline The front suspension system works to absorb shocks and vibrations that can be caused by field surface conditions, road surface conditions, and changes in weight caused by implements. Different implements can change the way a tractor carries weight and that weight is also changed when driving in the field or driving on the road. The front suspension system provides the operator with a smother ride, improved tractor stability, and higher productivity.

The front suspension control system has two control switches that allow the operator to adjust the suspension system to operating conditions. Those switches are the Suspension Switch and the Ride Condition Damper Switch. The operator can quickly adjust the suspension system to changing conditions with the touch of a button.

• Suspension system consists of ECU (FS) (5), suspension valve (8), suspension cylinder (15), stroke sensor (14) and accumulators (6), (7).

• ECU (FS) (5) receives output signals from the suspension switch (16), the ride condition damper switch (17) and other sensors with CANbus.

• ECU (FS) (5) uses signals from suspension switch (16), ride condition damper switch (17) and from other electronic controllers with CANbus to determine how to control the suspension motion.

• The suspension valve is controlled by ECU (FS), this valve consists of the valve for lifting (9), the valve for descending (10), the double check valves (12) and variable orifice (11).

• Accumulator (6), (7) and pressure sensor (13) are adapted on the suspension valve (8).

• Pressure sensor (13) detects the pressure of suspension cylinder extend side and sends signal to ECU (FS) (5).

• Accumulator (6), (7) play a role of suspension cylinder damper.

• Big size accumulator (6) is connected with extension side of suspension cylinder (15) because of defeating tractor gross weight itself.

• Small size accumulator (7) is connected with retraction side of suspension cylinder (15).

• Next page explains front suspension control system.

9Y1210410ELM0001US0

S9-M2

KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

[2] FRONT SUSPENSION CONTROL SYSTEM

(1) ECU (CRS) : (3) ECU (MAIN) : ECU for Common Rail System ECU for Power Shift System (2) ECU (FS): (6) Suspension Switch ECU for Front Suspension (7) Ride Condition Damper System Switch (5) Meter Panel

• • • •

(4) ECU (SUB) : (9) Pressure Switch ECU for 3-point Hitch Control (10) Suspension Valve System (8) Stroke Sensor

Front suspension control system requires switches and sensors as shown in the figure above.

Suspension switch (6) and ride condition damper switch (7) are connected with ECU (SUB) (4).

Stroke sensor (8) and pressure sensor (9) are connected with ECU (FS) (2).

ECU (FS) (2), ECU (SUB) (4), ECU (MAIN) (3), ECU (CRS) (1) and meter panel (5) are connected with CANbus each other.

9Y1210410ELM0002US0

S9-M3

KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

(1) ECU (SUB) : ECU for 3-point Hitch Control System (2) ECU (MAIN) : ECU for Power Shift System (3) ECU (CRS) : ECU for Common Rail System (4) Meter Panel

(5) ECU (FS): ECU for Front Suspension System (6) Stroke Sensor (7) Pressure Sensor (8) Earth for Sensor (9) Suspension Switch

(10) Ride Condition Damper Switch (11) Solenoid (for Descending the Body) (12) Solenoid (for Lifting the Body) (13) Solenoid (for Large Damping Force)

(14) Solenoid (for Middle Damping Force) (15) Solenoid (for Lock Cancellation) (16) Fuse (17) Main Key Switch (18) Battery

(To be continued)

S9-M4

KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

(Continued) The ECU (FS) (5) electrical circuit is shown in the figure before page. Battery (18) voltage supply to ECU (FS) (5) through the main key switch (17), regulated 5 voltage from ECU (FS) (5) supplies to stroke sensor (6) and pressure sensor (7). ECU (FS) (5) receives signals from stroke sensor (6) and pressure sensor (7).

ECU (FS) (5) processes and calculates the amount of the suspension cylinder motion from stroke sensor (6), pressure sensor (7) and other ECUs through CANbus. ECU (FS) (5) controls solenoids (11), (12), (13), (14), (15) based on the operation result.

The composition of the ECU (FS) circuit is as shown in figure. Battery voltage is transmitted to ECU (FS) (5) when the main key switch (17) is ON. Then regulated 5 voltage from ECU is transmitted to circuit of stroke sensor (6) and pressure sensor (7).

The transmitted 5 voltage changes by the resistance of the sensor according to the state of each sensor.

ECU receives these situations as a signal, and starts the feed back signal to other ECUs through CANbus, solenoids. As a result, five solenoid valves are controlled and it becomes working of an appropriate suspension adapted to the situation.

9Y1210410ELM0003US0

S9-M5

KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

ECU (FS) ECU (FS) is located under the battery.

ECU transmits the signal to solenoid built in to suspension valve, and controls working of the suspension.

(1) ECU (FS): ECU for Front Suspension System (1) ECU (CRS) : ECU for Common Rail System

(A) ECU (FS) Connector

[ECU (FS) Connector Color of Wiring

No.

Name CAN (L)

Color of Wiring

No.

Name +12V

No.

Color of Wiring

19

Black/White

Earth for Sensor

20

Red/White

+5V for Sensor

Name

1

Blue

10

Red/Blue

2

–

11

–

3

–

12

Black

Earth for Load

21

–

4

–

13

Purple/White

Solenoid for Descending the Body

22

–

5

White/Yellow

Stroke Sensor

14

Sky Blue

CAN (H)

23

Pink/Black

Solenoid for Large Damping Force

6

Blue/White

Pressure Sensor

15

–

24

Grey/Blue

Solenoid for Lock Cancellation

7

–

16

–

25

Purple/Black

Solenoid for Middle Damping Force

8

–

17

–

26

Pink/White

Solenoid for Lifting the Body

9

–

18

–

– 9Y1210410ELM0004US0

S9-M6

KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

Suspension Switch Using the front suspension switch, the following 3 modes can be selected : ON, LOCK, and AUTO LOCK. While the "ON" or "AUTO LOCK" is selected, the suspension indicator on the instrument panel is illuminated. In the "LOCK" mode, the suspension indicator (2) in the meter panel is not illuminated.

Q Suspension "ON" Mode Whether driving on roads or driving in field, the ON mode reacts to changing surface conditions and the changing weight of the tractor as implements are used.

The ON mode is usually selected. When the ON mode is selected, the suspension indicator (2) is illuminated on the instrument panel.

Q Suspension "LOCK (OFF)" Mode The suspension system is locked out, no suspension action takes place. The LOCK mode should be selected when the operator needs to prevent the tractor and the attached implements from over compensating the front suspension system. The suspension indicator (2) is not illuminated when the LOCK mode is selected.

Q Suspension "AUTO LOCK" Mode The suspension system works as if in the ON mode unless the tractor is moving at a low speed or the three point hitch has been lowered. Select the AUTO LOCK mode when doing front loader work, tillage work, or most implements work. The AUTO LOCK mode locks the front suspension when the tractor slows down or the 3-point hitch is lowered. The suspension indicator (2) is illuminated when the AUTO LOCK mode is selected.

NOTE • In the AUTO LOCK mode, the hydraulic pressure in the suspension cylinder, accumulators or valve may cause the machine height to change, when the suspension system switches automatically from "LOCK" to "ON" status.

• The suspension cylinder adjustment control does not act in the following conditions.

1. The front wheels are overloaded.

2. The engine runs at low speeds and the transmission oil temperature is high.

3. Both the brake pedals are stepped down.

4. "Manual Control Mode" is selected.

• The machine speed in the suspension auto lock mode has been factory-adjusted at below 3 km/h (1.9 mph). To change this setting see page S9-S14.

(1) Suspension Switch (2) Suspension Indicator

(A) Suspension "LOCK" (B) Suspension "ON" (C) Suspension "AUTO LOCK" 9Y1210410ELM0006US0

S9-M7

KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

Ride Condition Damper Switch The suspension damping can be adjusted using the Ride Condition Damper Switch (1). To adjust the suspension damping, the suspension switch is set to the ON mode or the AUTO LOCK mode. Set the ride condition damper switch (1) to match implement, ground conditions, and the type of operator's work.

Of the three modes (Normal mode (B), Firm mode (A), Soft mode (C)), Normal mode (B) is generally recommended for most tractor work.

Q Normal Mode (B) In Normal mode, the tractor will automatically select the optimum dampening force between soft, medium, and firm to insure the best ride. The suspension dampening should be selected based on the tractors gross weight with implements.

Q Firm Mode (A) In Farm mode, the suspension damping is set one level higher than Normal mode. As an example, the operator would use Firm mode when working with heavy implements to prevent "rocking" or excessive bouncing, a heavy round bale in the loader.

Q Soft Mode (C) In Soft mode, the suspension system is set one level lower than Normal mode. As an example, the operator would use Soft mode when traveling on uneven or rough road surfaces to obtain a more comfortable ride.

NOTE • Depending on the tractor's gross weight, the "Firm" and "Soft" modes may work at nearly the same as with the "Normal" mode.

(1) Ride Condition Damper Switch

(A) Suspension "LOCK" (B) Suspension "ON" (C) Suspension "AUTO LOCK"

(To be continued)

S9-M8

KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

(Continued) (Reference) Q Manual Control Mode CAUTION To avoid personal injury : • Before releasing the Manual Control Mode, make sure the area near the machine is clear of all persons and objects. Because of the hydraulic pressure in the cylinder, the machine height may change unexpectedly or the suspension cylinder adjustment control may get activated, which affects the height and/or posture of the tractor or the implement.

The tractor front end height can be raised or lowered by moving the suspension cylinder in the manual way.

This is useful in attaching and detaching a front implement or front weight.

Q Height adjustment procedure 1. Hold down the top (Firm mode) or the bottom (Soft mode) of the ride condition damper switch (1) to the second stage for more than 3 seconds, the buzzer starts peeping and the suspension indicator starts (2) flashing. (Two or so flashes every second) Then the machine gets in the Manual Control Mode.

2. Hold down the top (Firm mode) of the ride condition damper switch (1) to the second stage, and the height is raised.

3. Hold down the bottom (Soft mode) of the ride condition damper switch (1) to the second stage, and the height is lowered.

Q Releasing the Manual Control Mode Reposition the suspension switch (to "ON", "LOCK" or "AUTO LOCK") to release the Manual Control Mode.

When released, the modes pre-selected with the suspension switch and the ride condition damper switch (1) are resumed.

IMPORTANT • Do not run or operate the machine with its height raised or lowered (while the Manual Control Mode is selected). Otherwise it may get in trouble.

(1) Ride Condition Damper Switch (2) Suspension Indicator

(A) "PRESS DOWN TO THE SECOND STAGE"

(To be continued)

S9-M9

KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

(Continued) NOTE • The Manual Control Mode is cleared in any of the following cases.

1. Stopping the engine (then restarting the engine).

2. Running the machine at higher than 5km/h (3.1 mph).

• Even in the Manual Control Mode, the suspension works according to the mode selected with the suspension switch.

• The Manual Control Mode raising and lowering speed varies depending on the mode selected with the suspension switch.

• With the "LOCK" mode selected, the machine height becomes stable and an implement may be easily attached and detached.

9Y1210410ELM0005US0

S9-M10

KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

Stroke Sensor Stroke sensor (1) is located on the right inside front axle flame.

Stroke sensor detects the amount of extending and retracting of cylinder motion length.

(1) Stroke Sensor 9Y1210410ELM0007US0

Pressure Sensor Pressure sensor (1) is located on the suspension valve (2).

Pressure sensor detects the pressure of the suspension cylinder head side.

(1) Pressure Sensor

(2) Suspension Valve 9Y1210410ELM0009US0

Suspension Solenoid Suspension solenoids (1), (2), (3), (4), (5) are located in the suspension valve (6).

(1) Solenoid for Middle Damping (4) Solenoid for Large Damping Force Force (2) Solenoid for Lock (5) Solenoid for Descending the Cancellation Body (3) Solenoid for Lifting the Body (6) Suspension Valve 9Y1210410ELM0008US0

S9-M11

KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

[3] ECU (SUB) CIRCUIT

(1) (2) (3) (4)

Mode Selector Switch Auto-mode Switch DHC Switch Constant RPM Management Switch (5) Draft Ratio Adjustment Dial

(6) Lift Arm Top Limit Adjustment Dial (7) 3-point Hitch Lowering Speed Adjustment Dial (8) Auto-mode Sensitivity Adjustment Dial (9) Suspension Switch

(10) Ride Condition Damper Switch (11) CANbus (12) Traveling Speed Signal (13) PTO Switch (14) 3-point Quick Raise/Lower Switch

(15) Remote Hitch Up/Down Switch (16) Key Switch (17) Battery (18) Earth (19) ECU (SUB) : ECU for 3-point Hitch Control System 9Y1210410ELM0011US0

S9-M12

KiSC issued 07, 2009 A

SERVICING CONTENTS 1.

2.

3.

4.

TROUBLESHOOTING.............................................................................................................. S9-S1 SERVICING SPECIFICATIONS ............................................................................................... S9-S2 TIGHTENING TORQUES......................................................................................................... S9-S3 CHECKING, DISASSEMBLING AND SERVICING .................................................................. S9-S4 [1] OUTLINE FOR METHOD OF SELF DIAGNOSIS, FINE ADJUSTING AND EASY CHECKING .............................................................................................................. S9-S4 (1) Information for Menu and Mode ................................................................................... S9-S4 [2] CHECKING AND ADJUSTING (CHECKING MODE)......................................................... S9-S5 (1) Checking Mode............................................................................................................. S9-S5 (2) Checking the History of the Break Down for the Suspension System.......................... S9-S9 (3) Clearing the Error Code History for Suspension System ........................................... S9-S11 [3] CHECKING AND ADJUSTING (FRONT SUSPENSION SYSTEM)................................. S9-S12 (1) Checking by Self Diagnosis........................................................................................ S9-S12

KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

1. TROUBLESHOOTING FRONT SUSPENSION SYSTEM Symptom Chassis Height Does not Raise

Probable Cause

Reference Page

Solution

Stroke sensor damaged

Replace or adjust

S9-M11

Pressure sensor damaged

Replace

S9-M11

Solenoid for lifting the body broken

Replace

S9-M11 S8-S22

Main spool does not work

Replace

S8-S24

Transmission fluid improper or insufficient

Change or replenish

G-36

Oil filter clogged

Replace

G-19

Hydraulic pump malfunctioning

Replace

S8-S20

Suspension valve malfunctioning

Replace

S8-S20

Relief valve malfunctioning

Replace or adjust

S8-S22

Suspension cylinder damaged

Replace

S8-S26

Stroke sensor defective

Replace

S9-M11

Branch valve malfunctioning

Replace or adjust

S8-S25

Accumulator gas discharged

Charge

S8-S14

Suspension switch "LOCK" position

Confirm

S9-M7

Pressure sensor defective

Replace

S9-M11

Suspension valve malfunctioning

Replace

S8-S20

Solenoid valve defective

Replace

S8-S22

ECU (FS) malfunctioning

Replace

S9-M6

Does not absorb the shock load

Accumulator gas leakage

Charge

S8-S14

Does not Keep Neutral Position

Suspension valve damaged

Replace

S8-S22

Chassis Does not Descend

Solenoid for lock cancellation broken

Replace

S8-S22

Chassis Does not Raise

Suspension Does not Operate

9Y1210410ELS0001US0

S9-S1

KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

2. SERVICING SPECIFICATIONS STROKE SENSOR Item Stroke sensor

Resistance

Factory Specification

Allowable Limit

Approx.

1.6 to 2.4 kΩ

–

Factory Specification

Allowable Limit

Approx.

22 kΩ

–

PRESSURE SENSOR Item Pressure sensor

Resistance

9Y1210410ELS0002US0

S9-S2

KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified.

Item ECU (FS) mounting screw Pressure sensor

N·m

kgf·m

lbf·ft

2.5

0.25

1.8

35.5 to 40.0

3.62 to 4.07

2.62 to 29.5 9Y1210410ELS0003US0

S9-S3

KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

4. CHECKING, DISASSEMBLING AND SERVICING [1] OUTLINE FOR METHOD OF SELF DIAGNOSIS, FINE ADJUSTING AND EASY CHECKING (1) Information for Menu and Mode This tractor is equipped with the three menus, "SHI", "HIT", "SUS" and "CHK". (See the table below.)

The menu "SHI" relates to "POWER SHIFT SYSTEM".

The menu "HIT" relates to "3-POINT HITCH SYSTEM".

The menu "SUS" relates to "SUSPENSION SYSTEM".

The menu "CHK" relates to EASY CHECKING of "POWER SHIFT SYSTEM", "3-POINT HITCH SYSTEM" and "SUSPENSION SYSTEM".

Menu

SHI

HIT

SUS

CHK

Menu's main purpose

POWER SHIFT SYSTEM • Self Diagnosis • Fine Adjusting

3 POINT HITCH SYSTEM • Self Diagnosis • Fine Adjusting

FRONT SUSPENSION SYSTEM

EASY CHECKING • "POWER SHIFT SYSTEM" • "3-POINT HITCH SYSTEM" • "SUSPENSION SYSTEM"

Mode

SHI-1

Mode Items

Remarks

C

Self-diagnosis for power shift system

A

Fine-Adjusting all items for power shift system

1

Fine-Adjusting clutch pedal sensor

2

Fine-Adjusting main shift clutch (1 thru 4, L and H)

3

Fine-Adjusting master clutch (F and R)

4

Fine-Adjusting throttle sensor

5

Fine-Adjusting solenoid propositional pressure reducing valve (Master)

6

Fine-Adjusting solenoid propositional pressure reducing valve (Main shift L)

7

Fine-Adjusting solenoid propositional pressure reducing valve (Main shift H)

N

Setting tractor model

P

Power shift/range shift lever (Neutral setting)

HIT-1

Self-diagnosis for 3-Point Hitch System

HIT-2

Fine-adjusting for 3-Point Hitch System

HIT-3

Setting number of assist cylinder

SUS-1

Fine-adjustment the stroke sensor

SUS-2

Fine-adjustment for auto lock setting

SUS-3

Fine-adjustment ride condition damper switch setting

SUS-4

Self-diagnosis for front suspension system

CHK-1

Checking sensors and dials output voltage

CHK-2

Checking the history of the break down

CHK-3

Checking the master clutch protected frequency

CHK-4

Clearing the history of the break down

CHK-5

Checking the history of the break down for the suspension system

CHK-6

Clearing the history of the break down for the suspension system 9Y1210410ELS0004US0

S9-S4

KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

[2] CHECKING AND ADJUSTING (CHECKING MODE) (1) Checking Mode IMPORTANT • The output voltage of easy sensor and dial is compared with the specified value for the checking purpose.

It should be noted, therefore, that even if no problem with the diagnostic results, the sensor itself may be defective.

• After changing the sensor, switch, control units on be sure to adjust the fine adjustment.

(Sensor Zero Adjustment) (See page S9-S13.)

9Y1210410ELS0005US0

Procedure 1 : Setting Menu 1. Set the menu item "CHK".

Refer to "(2) In formation for Setting Menu and Mode at [1] OUTLINE FOR METHOD OF SELF DIAGONOSIS, FINE-ADJUSTING AND EASY CHECKING".

(1) Display Switch

(2) Engine RPM Dual Memory A/B Indicator Switch 9Y1210410ELS0006US0

S9-S5

KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

Procedure 2 : Setting Mode 1. Make sure that the menu item "CHK" blinks on the display with depressing the display switch (1) once.

2. Make sure that the mode item "CHK-1" blinks on the display.

NOTE • Every time depressing the display switch, the mode item changes (See the chart below).

3. Press and hold the engine RPM dual memory A/B indicator switch (2) more than 3 seconds to set the mode item "CHK-1".

4. Release the engine RPM dual memory A/B indicator switch (2).

5. Press and hold the display switch (1) more than 3 seconds until "T 0" appears on the display.

6. Make sure that "T 0" appears on the display and then release the display switch (1).

NOTE • If the set mode item is wrong, turn off the main switch key and restart the procedure 1.

(1) Display Switch (2) Engine RPM Dual Memory A/B Indicator Switch

(A) Menu (B) Mode

9Y1210410ELS0007US0

S9-S6

KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

Procedure 3 : Checking Display CAUTION To avoid personal injury : • Before the machine gets in the Manual Control Mode, make sure the area near the machine is clear of all persons and objects. Because of the hydraulic pressure in the cylinder, the machine height may change unexpectedly or the suspension cylinder adjustment control may get activated, which affects the height and/or posture of the tractor or the implement.

1. Check the display.

NOTE • Every time depressing the display switch (1), the mode item changes.

2. Hold down the top (Firm mode) or the bottom (Soft mode) of the ride condition damper switch (3) to the second stage for more than 3 seconds, the buzzer starts peeping and the suspension indicator (4) starts flashing. (Two or so flashes every second) Then the machine gets in the Manual Control Mode.

3. Hold down the top (Firm mode) of the ride condition damper switch (3) to the second stage, and the height is raised. Then, check the display (Item No. 65).

4. Hold down the bottom (Soft mode) of the ride condition damper switch (3) to the second stage, and retract the suspension cylinder to the end. Then, check the display (Item No. 65).

5. Turn off the main key switch.

Q Releasing the Manual Control Mode Reposition the suspension switch (to "ON", "LOCK" or "AUTO LOCK") to release the Manual Control Mode.

When released, the modes pre-selected with the suspension switch and the ride condition damper switch (3) are resumed.

IMPORTANT • Do not run or operate the machine with its height raised or lowered (while the Manual Control Mode is selected).

Otherwise it may get in trouble.

NOTE • The Manual Control Mode is cleared in any of the following cases.

1. Stopping the engine (then restarting the engine).

2. Running the machine at higher than 5km/h (3.1 mph).

• Even in the Manual Control Mode, the suspension works according to the mode selected with the suspension switch.

• With the "LOCK" mode selected, the machine height becomes stable and an implement may be easily attached and detached.

• The manual-mode raising and lowering speed varies depending on the mode selected with the suspension switch.

(1) Display Switch (2) Engine RPM Dual Memory A/B Indicator Switch (3) Ride Condition Damper Switch (4) Suspension Indicator

(A) "PRESS DOWN TO THE SECOND STAGE"

(To be continued)

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KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

(Continued) Display

Display

Lower Right

Item

Item No. 64

65

Center

Remarks

Output voltage and so on Pressure Sensor

2.17 to 2.25 V

Relief valve functions.

0.73 to 2.09 V

Suspension Cylinder is upper limited position.

2.89 to 4.25 V

Suspension Cylinder is downer limited position.

Stroke Sensor

9Y1210410ELS0008US0

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KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

(2) Checking the History of the Break Down for the Suspension System Procedure 1 : Setting Menu and Mode 1. Set the menu item "CHK".

Refer to "(1) Checking Mode at [2] CHECKING AND ADJUSTING (CHECKING MODE)" at S9. ELECTRICAL SYSTEM section.

2. Set the mode item "CHK-5".

Refer to "(1) Checking Mode at [2] CHECKING AND ADJUSTING (CHECKING MODE)" at S9. ELECTRICAL SYSTEM section.

9Y1210410ELS0009US0

Procedure 2 : Checking Display 1. Check the display.

NOTE • Every time depressing the display switch (1), the item changes in order of the break down history. (See the next page, "Error Code" chart.)

If any of the error code does not display, "NOERR" appears on the display.

2. Turn off the main key switch.

(1) Display Switch

(A) With error code history (B) Without error code history 9Y1210410ELS0010US0

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KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

Error Code Display E-C60

E-U64

E-U65

Item ECU(MAIN) Power Source (5 V) for Sensor Line

Stroke Sensor

Pressure Sensor

Condition ECU(MAIN) Power Source (5 V) for Sensor Line decreases.

Ground wiring for ECU(MAIN) Power Source (5 V) is short-circuited.

Sensor Output Voltage : below 0.2 V or more than 4.9 V

Wiring from sensor is disconnected or is short-circuited.

Power source line (5 V) for ECU(FS) is disconnected.

Ground Harness from Sensor is disconnected.

Sensor Output Voltage : below 0.2 V or more than 4.9 V

Wiring from sensor is disconnected or is short-circuited.

Power source line (5 V) for ECU(FS) is disconnected.

Ground Harness from Sensor is disconnected.

Switch ON / OFF Failure.

Switch Failure or the problem occurs in hydraulic circuit.

Wiring is disconnected or is short-circuited.

Suspension Switch E-U67

Ride Condition Damper Switch

Remark

E-U68

Solenoid for Lifting the Body

Solenoid Output Voltage or Current is abnormal.

Wiring for solenoid is disconnected or is short-circuited.

E-U69

Solenoid for Descending the Body

Solenoid Output Voltage is abnormal.

Wiring for solenoid is disconnected or is short-circuited.

E-U70

Solenoid for Locking Cancellation

Solenoid Output Voltage is abnormal.

Wiring for solenoid is disconnected or is short-circuited.

E-U71

Solenoid for Middle Damping Force

Solenoid Output Voltage is abnormal.

Wiring for solenoid is disconnected or is short-circuited.

E-U72

Solenoid for Large Damping Force

Solenoid Output Voltage is abnormal.

Wiring for solenoid is disconnected or is short-circuited.

• The cylinder is automatically extended or retracted for body height adjustment maintaining of a neutral height position.

• The cylinder is retracted at the end position for more than sixty seconds.

• The cylinder head pressure is below 13.5 MPa

• Check the pilot pressure of the suspension valve.

• Check the suspension system.

E-U74

Hydraulic System Failure

E-U78

ECU(FS) Power Source (5 V) for Sensor Line

ECU(FS) Power Source (5 V) for Sensor Line decreases.

Ground wiring for ECU(FS) Power Source (5 V) is short-circuited.

E-U80

ECU(FS) CANbus

ECU(FS) CANbus is interrupted more than 5 seconds.

CANbus Wiring for ECU(FS) is disconnected.

9Y1210410ELS0011US0

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KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

(3) Clearing the Error Code History for Suspension System Procedure 1 : Setting Menu and Mode 1. Set the menu item "CHK".

Refer to "(1) Checking Mode at [2] CHECKING AND ADJUSTING (CHECKING MODE)" at S9. ELECTRICAL SYSTEM section.

2. Set the mode item "CHK-6".

Refer to "(1) Checking Mode at [2] CHECKING AND ADJUSTING (CHECKING MODE)" at S9. ELECTRICAL SYSTEM section.

9Y1210410ELS0012US0

Procedure 2 : Clearing the Career of Breakdown 1. Make sure that "PUSH" and "CLEAR" blinks alternately on the display.

2. Press and hold the engine RPM dual memory A/B indicator switch (1) more than 3 seconds until "OK" appears on the display.

3. After confirming "OK", turn off the main key switch.

(1) Engine RPM Dual Memory A/B Indicator Switch 9Y1210410ELS0013US0

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KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

[3] CHECKING AND ADJUSTING (FRONT SUSPENSION SYSTEM) (1) Checking by Self Diagnosis Fine-adjustment (Initial Setting) and Self-diagnosis Menu IMPORTANT • When replacing ECU (FS) or the stroke sensor, be sure to do fine adjustment (SUS-1, SUS-2, SUS-3).

Q Self-diagnosis and Fine-adjustment (Initial Setting) Item Display

Item

SUS-1

Fine-adjustment the stroke sensor

SUS-2

Fine-adjustment the auto lock setting

SUS-3

Fine-adjustment the ride condition damper switch setting

SUS-4

Self-diagnosis for front suspension system

(1) Display Switch (2) Engine RPM Dual Memory A/B Indicator Switch (3) Suspension Switch (4) Ride Condition Damper Switch

(A) Blinks

9Y1210410ELS0014US0

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KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

SUS-1 : Fine-Adjustment the Stroke Sensor 1. Set the menu item "SUS".

Refer to "(1) Checking Mode at [2] CHECKING AND ADJUSTING (CHECKING MODE)" at S9. ELECTRICAL SYSTEM section.

2. Set the menu item "SUS-1".

Refer to "(1) Checking Mode at [2] CHECKING AND ADJUSTING (CHECKING MODE)" at S9. ELECTRICAL SYSTEM section.

3. When "UP" appears on the meter panel, push the ride condition damper switch (1) hard side (A) until the suspension cylinders are extend to the end.

4. Press the engine RPM dual memory A/B indicator switch (2) until "DN" appears on the display.

5. When "DN" appears on the display, press the ride condition damper switch (1) soft side (C) until the suspension cylinders are retract to the end.

6. Press the engine RPM dual memory A/B indicator switch (2) until "OK" appears on the display.

7. Turn off the main key switch after confirming "OK" on the display.

(1) Ride Condition Damper Switch (2) Engine RPM Dual Memory A/B Indicator Switch

(A) Firm Mode (B) Normal Mode (C) Soft Mode 9Y1210410ELS0015US0

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KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

SUS-2 : Fine-Adjustment for AUTO LOCK Setting This mode is adopted for setting the travelling speeds in Suspension "AUTO LOCK" (A) condition to fit the operator's use conditions.

If the operator needs working suspension system all the time with suspension "AUTO LOCK" (A) condition, set "SET01" 1. Set the menu item "SUS".

Refer to "(1) Checking Mode at [2] CHECKING AND ADJUSTING (CHECKING MODE)" at S9. ELECTRICAL SYSTEM section.

2. Set the menu item "SUS-2".

Refer to "(1) Checking Mode at [2] CHECKING AND ADJUSTING (CHECKING MODE)" at S9. ELECTRICAL SYSTEM section.

3. Set the mode "SET01" to "SET10". (Factory spec. : SET04) 4. After setting the mode, press the engine RPM dual memory A/B indicator switch (2) until "OK" appears on the display.

5. Turn off the main key switch after confirming "OK" on the display.

(Reference) Display

Suspension System Speeds in the AUTO LOCK mode

SET01

0 km/h : Suspension system always works.

SET02

Below 1.0 km/h (0.62 mph)

SET03

Below 2.0 km/h (1.2 mph)

SET04

Below 3.0 km/h (1.9 mph) (Factory spec.)

SET05

Below 4.0 km/h (2.5 mph)

SET06

Below 5.0 km/h (3.1 mph)

SET07

Below 6.0 km/h (3.7 mph)

SET08

Below 7.0 km/h (4.3 mph)

SET09

Below 8.0 km/h (5.0 mph)

SET10

Below 9.0 km/h (5.6 mph)

(1) Suspension Switch (2) Engine RPM Dual Memory A/B Indicator Switch

(A) Suspension "AUTO LOCK"

9Y1210410ELS0016US0

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KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

Easy Setting for SUS-2 NOTE • This procedure is adopted for easy setting for "SUS-2".

Only three travelling speeds are available by this procedure.

1. Turn on the key switch with pressing the ride condition damper switch (2) "Firm Mode" (X) down to the second stage.

The buzzer rings once and the suspension indicator (3) on the display blinks slowly.

2. Release the ride condition damper switch (2).

3. Set the suspension switch (1) positions as shown in the chart below.

Suspension System Locked Speeds in the AUTO LOCK Mode

Suspension Switch Position (A)

Suspension "LOCK"

0 km/h

(B)

Suspension "ON"

Below 3 km/h (1.9 mph) (Factory spec.)

(C)

Suspension "AUTO LOCK"

Below 5 km/h (3.1 mph)

4. Press the ride condition damper switch (2) hard side "Firm Mode"(X) for three seconds and more.

The suspension indicator (3) on the display blinks and the buzzer starts peeping intermittingly.

5. Turn off the main key switch.

(1) Suspension Switch (2) Ride Condition Damper Switch (3) Suspension Indicator

(A) (B) (C) (X) (Y) (Z)

Suspension "LOCK" Suspension "ON" Suspension "AUTO LOCK" Firm Mode Normal Mode Soft Mode 9Y1210410ELS0019US0

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KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

Setting AUTO LOCK Condition NOTE • Suspension "AUTO LOCK" (C) is controlled by travelling speeds condition and 3-point hitch condition with factory spec..

• To fit the operator's use conditions, it is able to change "AUTO LOCK" (C) condition.

• If the operator needs working suspension system with 3-point hitch lifted and suspension "AUTO LOCK" (C) condition, set "AUTO LOCK" (C) to "Travelling Speeds".

1. Turn on the main key switch with pressing the ride condition damper switch (2) down to the second stage.

The buzzer rings once and the suspension indicator (3) on the display blinks slowly.

2. Release the ride condition damper switch (2).

3. Set the suspension switch (1) position as shown in the chart below.

Suspension Switch Position

Auto Lock Condition

(A)

Suspension "LOCK"

Traveling speeds or 3-points hitch condition

(B)

Suspension "ON"

Traveling speeds

(C)

Suspension "AUTO LOCK"

3-points hitch condition

Remarks Factory spec.

4. Press the ride condition damper switch (2) soft side (Z) down to the second stage for three seconds and more.

The suspension indicator (3) on the display blinks and the buzzer rings intermittingly.

5. Turn off the main key switch.

(1) Suspension Switch (2) Ride Condition Damper Switch (3) Suspension Indicator

(A) (B) (C) (X) (Y) (Z)

Suspension "LOCK" Suspension "ON" Suspension "AUTO LOCK" Firm Mode Normal Mode Soft Mode 9Y1210410ELS0021US0

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KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

SUS-3 : Fine-Adjusting the Ride Condition Damper Switch Setting 1. Set the menu item "SUS".

Refer to "(1) Checking Mode at [2] CHECKING AND ADJUSTING (CHECKING MODE)" at S9. ELECTRICAL SYSTEM section.

2. Set the menu item "SUS-3".

Refer to "(1) Checking Mode at [2] CHECKING AND ADJUSTING (CHECKING MODE)" at S9. ELECTRICAL SYSTEM section.

After setting the mode item "SUS-3", "SET01" appears on the display.

3. Press the engine RPM dual memory A/B indicator switch (3) until "MOVE" or "LOCK" appears on the display.

4. Whenever pushing the display switch (2), "MOVE" or "LOCK" appears alternately.

5. After selecting "MOVE" or "LOCK", press the engine RPM dual memory A/B indicator switch (3) until "OK" appears on the display.

6. Turn off the main key switch after confirming "OK" on the display.

(Reference) Display

Control Items

MOVE

The front axle load and the ride condition damper switch

LOCK

Only the ride condition damper switch

Remarks Factory spec. ECU (FS) calculates the front suspension cylinder load based on pressure sensor's output signal

NOTE • "MOVE" means that the variable orifice position can be moved with regardless to the ride condition damper switch (1) position.

"LOCK" means that the variable orifice position can be locked with regard to the ride condition damper switch (1) position.

This mechanism is shown to page S8-M12 on detail (1) Ride Condition Damper Switch (2) Display Switch (3) Engine RPM Dual Memory A/B Indicator Switch

(A) Firm Mode (B) Normal Mode (C) Soft Mode 9Y1210410ELS0017US0

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KiSC issued 07, 2009 A

ELECTRICAL SYSTEM

M135X-S, WSM

SUS-4 : Self-Diagnosis for Front Suspension System 1. Set the menu item "SUS".

Refer to "(1) Checking Mode at [2] CHECKING AND ADJUSTING (CHECKING MODE)" at S9. ELECTRICAL SYSTEM section.

2. Set the menu item "SUS-4".

Refer to "(1) Checking Mode at [2] CHECKING AND ADJUSTING (CHECKING MODE)" at S9. ELECTRICAL SYSTEM section.

3. "CHECK" and "PUSH" appears on the display alternately.

4. Whenever pressing the suspension switch (1) or the ride condition damper switch (2), the buzzer starts peeping.

5. Turn off the main key switch after checking the suspension switch (1) and the ride condition damper switch (2).

(1) Suspension Switch (2) Ride Condition Damper Switch

(A) (B) (C) (X) (Y) (Z)

Suspension "LOCK" Suspension "ON" Suspension "AUTO LOCK" Firm Mode Normal Mode Soft Mode 9Y1210410ELS0018US0

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KiSC issued 07, 2009 A

EDITOR: KUBOTA FARM & INDUSTRIAL MACHINERY SERVICE, LTD. 64, ISHIZU-KITAMACHI, SAKAI-KU, SAKAI-CITY, OSAKA, 590-0823, JAPAN PHONE : (81)72-241-1129 FAX : (81)72-245-2484 E-mail : ksos-pub@kubota.co.jp

KUBOTA Corporation

Printed in Japan 2009. 07, S, EI, EI, e

Code No.9Y121-04100