Kubota ME5700 Workshop Manual
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Kubota ME5700 Workshop Manual

Kubota ME5700 Workshop Manual

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Table of Contents

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WORKSHOP MANUAL
TRACTOR
ME5700
KiSC issued 04, 2006 A

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Summary of Contents for Kubota ME5700

  • Page 1 WORKSHOP MANUAL TRACTOR ME5700 KiSC issued 04, 2006 A...
  • Page 2 TO THE READER This Workshop Manual has been prepared to provide servicing personnel with information on the mechanism, service and maintenance of KUBOTA tractor ME5700. It is divided into two parts, "Mechanism" and "Servicing" for each section. Mechanism Information on the construction and function are included. This part should be understood before proceeding with troubleshooting, disassembling and servicing.
  • Page 3 ME5700, WSM SAFETY INSTRUCTIONS 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.
  • Page 4 ME5700, WSM SAFETY INSTRUCTIONS SAFETY WORKING Do not work on the machine while under the influence of alcohol, medication, or other substances or while fatigued. Wear close fitting clothing and safety equipment appropriate to the job. Use tools appropriate to the work. Makeshift tools, parts, and procedures are not recommended.
  • Page 5 ME5700, WSM SAFETY INSTRUCTIONS VENTILATE WORK AREA If the engine must be running to do some work, make sure the area is well ventilated. Never run the engine in a closed area. The exhaust gas contains poisonous carbon monoxide. 0000000757E PREVENT ACID BURNS Sulfuric acid in battery electrolyte is poisonous.

  • Page 6: Safety Decals

    ME5700, WSM SAFETY INSTRUCTIONS SAFETY DECALS The following safety decals are installed on the machine. If a decal becomes damaged, illegible or is not on the machine, replace it. The decal part number is listed in the parts list. [ROPS TYPE]...
  • Page 7 ME5700, WSM SAFETY INSTRUCTIONS 0000002845E KiSC issued 04, 2006 A...
  • Page 8 ME5700, WSM SAFETY INSTRUCTIONS 0000003130E KiSC issued 04, 2006 A...
  • Page 9 ME5700, WSM SAFETY INSTRUCTIONS 0000003126E KiSC issued 04, 2006 A...
  • Page 10 ME5700, WSM SAFETY INSTRUCTIONS [CABIN TYPE] 0000003131E KiSC issued 04, 2006 A...
  • Page 11 ME5700, WSM SAFETY INSTRUCTIONS 0000003132E KiSC issued 04, 2006 A...
  • Page 12 ME5700, WSM SAFETY INSTRUCTIONS 0000003133E KiSC issued 04, 2006 A...

  • Page 13: Specifications

    ME5700, WSM SPECIFICATIONS SPECIFICATIONS ME5700 Model ROPS TYPE CABIN TYPE Model F2803-EA Type Vertical, water-cooled, 4-cycle diesel engine No. of cylinders Total displacement 2746 (167.6 cu.in.) Bore and stroke 87 x 92.4 mm (3.4 x 3.6 in.) Net power 42.5 kW (57 HP, 57.8 PS)* /2800...
  • Page 14 ME5700, WSM DIMENSIONS DIMENSIONS [ROPS TYPE] 0000003134E KiSC issued 04, 2006 A...
  • Page 15 ME5700, WSM DIMENSIONS [CABIN TYPE] 0000003135E KiSC issued 04, 2006 A...
  • Page 16 GENERAL KiSC issued 04, 2006 A...

  • Page 17: Table Of Contents

    CONTENTS 1. TRACTOR IDENTIFICATION.....................G-1 2. GENERAL PRECAUTIONS....................G-2 3. HANDLING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING......G-3 [1] WIRING..........................G-3 [2] BATTERY ..........................G-5 [3] FUSE ..........................G-5 [4] CONNECTOR ........................G-6 [5] HANDLING OF CIRCUIT TESTER.................G-7 4. LUBRICANTS, FUEL AND COOLANT................G-8 5. TIGHTENING TORQUES ....................G-10 [1] GENERAL USE SCREWS, BOLT AND NUTS ............G-10 [2] STUD BOLTS .........................G-10 6.

  • Page 18: Tractor Identification

    ME5700, WSM GENERAL 1. TRACTOR IDENTIFICATION When contacting your local KUBOTA distributor, always specify engine serial number, tractor serial number, CABIN serial number and hour meter reading. (1) Tractor Identification Plate (4) CABIN Identification Plate (2) Tractor Serial Number (5) CABIN Serial Number...

  • Page 19: General Precautions

    Remove oil and dirt from parts before measuring. Use only KUBOTA genuine parts for parts replacement to maintain machine performance and to assure safety. Gaskets and O-rings must be replaced during reassembly.

  • Page 20: Handling Precautions For Electrical Parts And Wiring

    ME5700, WSM GENERAL 3. HANDLING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING To ensure safety and prevent damage to the machine and surrounding equipment, heed the following precautions in handling electrical parts and wiring. Check electrical wiring for damage and loosened connection every year.
  • Page 21 ME5700, WSM GENERAL Securely insert grommet. (1) Grommet (A) Correct (B) Incorrect 0000000616E Securely clamp, being careful not to damage wiring. (1) Clamp (3) Clamp *Wind Clamp Spirally (4) Welding Dent (2) Wire Harness 0000000617E Clamp wiring so that there is no twist, unnecessary sag, or excessive tension, except for movable part, where sag be required.

  • Page 22: Battery

    ME5700, WSM GENERAL After installing wiring, check protection of terminals and clamped condition of wiring, only connect battery. (1) Cover *Securely Install Cover 0000000620E [2] BATTERY Take care not to confuse positive and negative terminal posts. When removing battery cables, disconnect negative cable first.

  • Page 23: Connector

    ME5700, WSM GENERAL [4] CONNECTOR For connector with lock, push lock to separate. Push 0000000623E In separating connectors, do not pull wire harnesses. Hold connector bodies to separate. (A) Correct (B) Incorrect 0000000624E Use sandpaper to remove rust from terminals.

  • Page 24: Handling Of Circuit Tester

    ME5700, WSM GENERAL Make certain plastic cover is large enough to cover whole connector. (1) Cover (A) Correct (B) Incorrect 0000000627E [5] HANDLING OF CIRCUIT TESTER Use tester correctly following manual provided with tester. Check for polarity and range. 0000000628E...

  • Page 25: Lubricants, Fuel And Coolant

    0 to 25 (32 to 77 7.0 lmp.qts SAE20, 10W-30 or 10W-40 Above 25 SAE30, 10W-30 or 10W-40 40.0 L 43.0 L KUBOTA UDT or SUPER UDT Transmission case 42.3 U.S.gals 45.4 U.S.gals fluid* 35.2 lmp.gals 37.8 lmp.gals 8.0 L...
  • Page 26 Transmission Oil : The oil used to lubricate the transmission is also used as hydraulic fluid. To insure proper operation of the hydraulic system and complete lubrication of the transmission, it is important that a multi-grade transmission fluid be used in this system. We recommend the use of KUBOTA SUPER UDT fluid for optimum protection and performance.

  • Page 27: Tightening Torques

    ME5700, WSM GENERAL 5. TIGHTENING TORQUES [1] GENERAL USE SCREWS, BOLT AND NUTS Screws, bolt and nuts whose tightening torque are not specified in this Workshop Manual should be tightened according to the table below. Indication on top of No-grade or 4T...

  • Page 28: Maintenance

    ME5700, WSM GENERAL 6. MAINTENANCE Indication on hour meter Refer- Period Impor- ence Item tant page Engine oil Change G-15 Engine oil filter Replace G-15 Hydraulic oil filter Replace G-16 Transmission fluid Change G-17 Front axle case oil Change G-17...
  • Page 29 ME5700, WSM GENERAL Indication on hour meter After purchase Refer- Period Impor- ence Item tant 1500 3000 1 year 2 years page Engine oil Change G-15 Engine oil filter Replace G-15 Hydraulic oil filter Replace G-16 Transmission fluid Change G-17...
  • Page 30 ME5700, WSM GENERAL The jobs indicated by must be done after the first 50 hours of operation. *1 : Air cleaner should be cleaned more often in dusty conditions than in normal conditions. *2 : Every year or every 6 times of cleaning.

  • Page 31: Check And Maintenance

    ME5700, WSM GENERAL 7. CHECK AND MAINTENANCE Be sure to check and service the tractor on a flat place with engine shut off, the parking brake on and chock the wheels. 0000000633E [1] DAILY CHECK To prevent trouble from occurring, it is important to know the condition of the tractor. Check the following items before starting.

  • Page 32: Check Points Of Initial 50 Hours

    ME5700, WSM GENERAL [2] CHECK POINTS OF INITIAL 50 HOURS Changing Engine Oil Be sure to stop the engine before changing the oil. Allow engine to cool down sufficiently, oil can be hot and can burn. 1. To drain the used oil, remove the drain plugs (1) at the bottom of the engine and drain the oil completely into the oil pan.
  • Page 33 9. Make sure that the transmission fluid doesn't leak through the seal. To prevent serious damage to the hydraulic system, use only a KUBOTA genuine filter. (1) Drain Plug A : Oil level is acceptable within (2) Hydraulic Oil Filter this range.
  • Page 34 2. After draining reinstall the drain plug. 3. Fill with the new KUBOTA SUPER UDT fluid up to the upper notch on the dipstick (3). Refer to "LUBRICANTS, FUEL AND COOLANT". (See page G-8.)

  • Page 35: Check Points Of Every 50 Hours

    ME5700, WSM GENERAL Cleaning Water Separator (CABIN Type) 1. Close the fuel cock (1). 2. Unscrew the retainer ring (2) and remove the cup (3), and rinse the inside with kerosene. 3. Take out the element and dip it in the kerosene to rinse.

  • Page 36: Check Points Of Every 100 Hours

    ME5700, WSM GENERAL Checking Wheel Mounting Nuts Tightening Torque Never operate tractor with a loose rim, wheel, or axle. Any time bolts and nuts are loosened, retighten to specified torque. Check all bolts and nuts frequently and keep them tight.
  • Page 37 ME5700, WSM GENERAL Lubricating Grease Fittings 1. Apply a small amount of multipurpose grease to following points every 100 hours. 2. If you operated the machine in extremely wet and muddy condition, lubricate grease fittings more often. (1) Grease Fitting...
  • Page 38 ME5700, WSM GENERAL Checking Battery Condition For the refillable type battery. follow the instructions below. Do not use or charge the refillable type battery if the fluid level is below the LOWER (lower limit level) mark. Otherwise, the battery component parts may prematurely deteriorate, which may shorten the battery's service life or cause an explosion.
  • Page 39 ME5700, WSM GENERAL Cleaning Air Cleaner Primary Element 1. Remove the air cleaner cover (3) and primary element (2). 2. Clean the primary element if: When dry dust adheres to the element, blow compressed air from the inside turning the element. Pressure of compressed air must be under 205 kPa (2.1...
  • Page 40 ME5700, WSM GENERAL Cleaning Fuel Filter (ROPS Type) This job should not be done in the field, but in a clean place. 1. Close the fuel cock (1). 2. Unscrew the screw ring and remove the filter bowl (2), and rinse the inside with kerosene.
  • Page 41 ME5700, WSM GENERAL Adjusting Brake Pedal Free Travel Stop the engine and chock the wheels before checking brake pedal. 1. Release the parking brake. 2. Slightly depress the brake pedals and measure free travel (C) at top of pedal stroke.

  • Page 42: Check Points Of Every 200 Hours

    ME5700, WSM GENERAL [5] CHECK POINTS OF EVERY 200 HOURS Replacing Engine Oil Filter 1. See page G-15. 0000003072E Checking Radiator Hose and Hose Clamp Check to see if radiator hoses are properly fixed every 200 hours of operation or six months, whichever comes first.
  • Page 43 ME5700, WSM GENERAL Adjusting Toe-in 1. Park tractor on a flat place. 2. Turn steering wheel so front wheels are in the straight ahead position. 3. Lower the implement, lock the park brake and stop the engine. 4. Measure distance between tire beads at front of tire, at hub height.
  • Page 44 ME5700, WSM GENERAL Cleaning Inner Air Filter (CABIN Type) 1. Remove the inner air filter (1), and blow air from the direction opposite to the filter's normal flow. (1) Inner Air Filter (2) Push-rivet 0000002284E Cleaning Fresh Air Filter (CABIN Type) 1.

  • Page 45: Check Points Of Every 300 Hours

    ME5700, WSM GENERAL Adjusting Air Conditioner Belt Tension (CABIN Type) 1. Push on the belt between the pulleys with a finger. 2. A deflection of 10 to 12 mm (0.39 to 0.47 in.) under a 98 N (10 kgf, 22 lbs) load is appropriate.

  • Page 46: Check Points Of Every 600 Hours

    ME5700, WSM GENERAL [8] CHECK POINTS OF EVERY 600 HOURS Changing Transmission Fluid 1. See page G-17. 0000003084E Changing Front Axle Case Oil 1. See page G-17. 0000003085E Adjusting Front Axle Pivot 1. If the front axle pivot pin adjustment is not correct, front wheel vibration can occur causing vibration in the steering wheel.

  • Page 47: Check Points Of Every 1 Year

    ME5700, WSM GENERAL [10]CHECK POINTS OF EVERY 1 YEAR Replacing Air Cleaner Primary Element and Secondary Element 1. Refer to "Cleaning Air Cleaner Primary Element". (See page G-22.) 0000003088E Checking Air Conditioner Pipes and Hoses (CABIN Type) 1. Check to see that all lines and hose clamps are tight and not damaged.

  • Page 48: Check Points Of Every 2 Years

    ME5700, WSM GENERAL [11]CHECK POINTS OF EVERY 2 YEARS Flush Cooling System and Changing Coolant Do not remove the radiator cap (1) while coolant is hot. When cool, slowly rotate cap to the first stop and allow sufficient time for excess pressure to escape before removing the cap completely.
  • Page 49 ME5700, WSM GENERAL Flush Cooling System and Changing Coolant (Continued) Anti-Freeze When using antifreeze, put on some protection such as rubber gloves (Antifreeze contains position.). If should drink antifreeze, throw up at once and take medical attention. When antifreeze comes in contact with the skin or clothing, wash it off immediately.
  • Page 50 7. Kubota's genuine long-life coolant has a service life of 2 years. Be sure to change the coolant every 2 years. The above data represents industry standards that necessitate a minimum glycol content in the concentrated anti-freeze.

  • Page 51: Others

    ME5700, WSM GENERAL [12]OTHERS Bleeding Fuel System (ROPS Type) Air must removed : 1. When the fuel filter or lines are removed. 2. When tank is completely empty. 3. After the tractor has not been used for a long period of time.
  • Page 52 ME5700, WSM GENERAL Draining Clutch Housing Water 1. The tractor is equipped with drain plug (1) under the clutch housing. 2. After operating in rain, snow or tractor has been washed, water may get into the clutch housing. 3. Remove the drain plug (1) and drain the water, then install the plug (1) again.
  • Page 53 ME5700, WSM GENERAL Replacing Fuse (CABIN Type) 1. The tractor electrical system is protected from potential damage by fuses. A blown fuse indicates that there is an overload or short somewhere in the electrical system. 2. If any of the fuses should blow, replace with a new one of the same capacity.
  • Page 54 ME5700, WSM GENERAL Replacing Light Bulb (ROPS Type) 1. Head lights: Take the bulb out of the light body and replace with a new one. 2. Other lights: Detach the lens and replace the bulb. Light Capacity Head lights 45 W...
  • Page 55 ME5700, WSM GENERAL Lubricating Door and Rear Window Hinge 1. Apply a small amount of lubricating liquid to the following points when it is necessary. (1) Door Hinge (2) Rear WIndow Hinge 0000003167E KiSC issued 04, 2006 A G-38...

  • Page 56: Special Tools

    ME5700, WSM GENERAL 8. SPECIAL TOOLS [1] SPECIAL TOOLS FOR ENGINE Special Use Puller Set Code No : 07916-09032 Application : Use exclusively for pulling out bearing, gears and other parts with ease. 0000000677E Piston Ring Compressor Code No :...
  • Page 57 ME5700, WSM GENERAL Oil Pressure Tester Code No : 07916-32032 Application : Use to measure lubricating oil pressure. (1) Gauge (5) Adaptor 2 (2) Cable (6) Adaptor 3 (3) Threaded Joint (7) Adaptor 4 (4) Adaptor 1 (8) Adaptor 5...
  • Page 58 ME5700, WSM GENERAL Crankshaft Nut Socket 46 Code No : 07916-30821 Application : Use exclusively for removing or installing the crankshaft nut. 0000003101E Flywheel Puller Code No : 07916-32011 Application : Use exclusively for removing the flywheel with ease. 0000003102E...
  • Page 59 ME5700, WSM GENERAL Nozzle Tester Code No : 07909-31361 Application : Use to check the fuel injection pressure and spray pattern of nozzle. Measuring : 0 to 50 MPa range (0 to 500 , 0 to 7000 psi) 0000000685E Plastigage...
  • Page 60 ME5700, WSM GENERAL The following special tools are not provided, so make them referring to the figure. 0000002319E Bushing Replacing Tools Application : Use to press out and to press fit the bushing. [For small end bushing] 162 mm (6.38 in.) 35 mm (1.38 in.)
  • Page 61 ME5700, WSM GENERAL Valve Guide Replacing Tool Application : Use to press out and press fit the valve guide. 20 mm dia. (0.79 in. dia.) 11.7 to 11.9 mm dia. (0.460 to 0.468 in.dia.) 6.5 to 6.6 mm dia. (0.256 to 0.259 in.dia.) 225 mm (8.86 in.)
  • Page 62 ME5700, WSM GENERAL Crankshaft Bearing 1 Replacing Tool Application : Use to press out and press fit the crankshaft bearing 1. [1] Extracting tool 135 mm (5.31 in.) 72 mm (2.83 in.) R40 mm (R1.57 in.) 10 mm (0.39 in.) 20 mm (0.79 in.)
  • Page 63 ME5700, WSM GENERAL Injection Pump Pressure Tester Application : Use to check fuel tightness of injection pumps. Pressure gauge full scale : More than 29.4 MPa (300 , 4267 psi) Copper gasket Flange (Material : Steel) Hex. nut 27 mm (1.06 in.) across the plat...

  • Page 64: Special Tools For Tractor

    ME5700, WSM GENERAL [2] SPECIAL TOOLS FOR TRACTOR Tie-rod End Lifter Code No : 07909-39051 Application : Use for removing the tie-rod end with ease. 0000000699E Steering Wheel Puller Code No : 07916-51090 Application : Use for removing the steering wheel without damaging the steering shaft.
  • Page 65 ME5700, WSM GENERAL Adaptor Set for Flow Meter Code No : 07916-54031 Application : Use for testing the hydraulic system. (1) Adaptor 52 (8) Adaptor 65 (2) Adaptor 53 (9) Adaptor 66 (3) Adaptor 54 (10) Adaptor 67 (4) Adaptor 61...
  • Page 66 ME5700, WSM GENERAL Rear Axle Cover Puller Code No : 07916-51041 Application : Use for removing a rear axle cover from rear axle. 0000003139E Shuttle Clutch Compression Tool Code No. : 07916-55031 Application : Use exclusively for pushing the thrust collar, remove the external snap ring.
  • Page 67 ME5700, WSM GENERAL Pressure Gauge 50 Code No : 07916-52961 Application : This pressure gauge is used to measure the low oil pressure. 0000002345E Power Steering Adaptor Code No : 07916-54021 Application : Use for measuring the relief valve setting pressure for power steering.
  • Page 68 ME5700, WSM GENERAL Special tools for R134a refrigerant air conditioning system introduced below are available from DENSO CO.LTD.. 0000002347E Air Conditioner Service Tool Code No. : DENSO.CO. 95048-00061 Application : Use for charging, testing or discharging the air conditioning system.
  • Page 69 ME5700, WSM GENERAL Adaptor (for R134a) Code No : DENSO.CO. 95048-10190 (AC220V) 95048-10200 (AC240V) Application : Use for evacuating the air conditioning system. 0000002351E KiSC issued 04, 2006 A G-52...
  • Page 70 ME5700, WSM GENERAL The following special tools are not provided, so make them referring to the figure. 0000002319E Draft Control Test Bar Application :Use for checking the lift range and floating range of hydraulic draft control. 1045 mm (41.14 in.) 1000 mm (29.37 in.)
  • Page 71 ME5700, WSM GENERAL Locking Wrench Application :Use for locking a pinion nut. 170 mm (6.69 in.) 130 mm (5.12 in.) 63.5 mm (2.5 in.) 40 mm radius (1.57 in. radius) 55 mm (2.17 in.) 15 mm (0.59 in.) 35 mm (1.38 in.) 5 mm (0.2 in.)
  • Page 72 ME5700, WSM GENERAL Cylinder Safety Valve Setting Pressure Adaptor Application : Use for setting the safety valve to the nozzle tester to measure cracking pressure and check oil tightness of the safety valves. 45 mm (1.77 in.) 10 mm dia. (0.39 in. dia.) 40 mm (1.58 in.)
  • Page 73 ME5700, WSM GENERAL Stopper Magnet Clutch (For A/C Compressor) Application : Use for loosen and tighten the magnet clutch mounting nut. 125 mm (4.92 in.) 3 x M8 x 1.25 All screws 40 mm dia. (1.57 in. dia.) 4.52 rad (120 ) Radius 33 mm (Radius 1.30 in.)
  • Page 74 ME5700, WSM GENERAL Stopper Bolt (for A/C Compressor) Application : Use with the stopper magnet clutch. 12 mm (0.47 in.) 5.5 mm dia. (0.22 in. dia.) 35 mm (1.38 in.) 6.5 mm dia. (0.26 in. dia.) 7 mm (0.28 in.) 0.52 rad (30 )
  • Page 75 ME5700, WSM GENERAL Oil Cooler Relief Valve Setting Pressure Adaptor Application : Use for setting the oil cooler relief valve to the nozzle tester to measure cracking pressure and check oil tightness of the oil cooler relief valve. 45 mm (1.77 in.) 2 mm (0.079 in.)
  • Page 76 ME5700, WSM GENERAL Pinion Shaft Remover Application :Use for removing a pinion shaft. 106 mm (4.17 in.) 350 mm (13.078 in.) 6 mm (0.24 in.) 90 mm (3.54 in.) 10 mm (0.39 in.) 40 mm (1.57 in.) 10 mm (0.39 in.) 35.6 mm (1.40 in.)
  • Page 77 ME5700, WSM GENERAL Hydraulic Cylinder Block Tool Application : Use for separating a hydraulic cylinder block. The sealing surface of the connecting parts must be welded. 75 mm (2.95 in.) 12 mm dia. (0.47 in. dia.) 24 mm (0.94 in. ) 31 mm radias (1.22 in.

  • Page 78: Tires

    ME5700, WSM GENERAL 9. TIRES [1] TYPE OF TIRES The following tires can be mounted on models ME5700. Do not use tires larger than specified. Model Type of Tire Front Rear 9.5 / 9 - 20 14.9 R28 ME5700 Farm Tire 11.2 R20...

  • Page 79: Tread Adjustment

    ME5700, WSM GENERAL [2] TREAD ADJUSTMENT (1) Front Wheels When working on slopes or when working with trailer, set the wheel tread as wide as practical for maximum stability. Support tractor securely on stands before removing a wheel. Do not work under any hydraulically supported devices. They can settle, suddenly leak down, or be accidentally lowered.

  • Page 80: Rear Wheels

    ME5700, WSM GENERAL (2) Rear Wheels Rear tread width can be adjusted as shown with the standard equipped tires. To change the tread width 1. Remove the wheel rim and / or disk mounting bolts. 2. Change the position of the rim and / or disk (right and left) to the desired position, and tighten the bolts.

  • Page 81: Wheel Hub

    ME5700, WSM GENERAL [3] WHEEL HUB Front wheel hub Rear wheel hub Screw circle diameter (A) 203.2 mm (8 in.) 203.2 mm (8 in.) Number of screws Screws M16 x 1.5 M16 x 1.5 Hub pilot diameter (B) 152.4 mm (6 in.) 152.4 mm (6 in.)

  • Page 82: Tire Liquid Injection

    ME5700, WSM GENERAL [5] TIRE LIQUID INJECTION Auxiliary weights can be used to increase traction force for plowing in fields or clayey grounds. Another way is to inject water or another liquid, such as a calcium chloride solution in the tires. Water must not be used in winter since it freezes at 0 ).
  • Page 83 ME5700, WSM GENERAL Attaching Injector 1. Lift the rear tires off the ground. 2. Turn the tire so that the air valve is at the top. 3. Remove the air valve, and attach the injector (Code No. 07916-52501). (1) Injector...
  • Page 84 ME5700, WSM GENERAL Injection When a calcium chloride solution is used, cool it before pouring it into the tire. Do not fill tires with water or solution more than 75 % of full capacity (to the valve stem level). To avoid damage of transmission, do not use rear wheel weights and liquid ballast at the same time.
  • Page 85 ME5700, WSM GENERAL Draining Water or Solution 1. Lift the rear tires off the ground. 2. Turn the tire so that the air valve is at the bottom. 3. Remove the air valve, and drain liquid (liquid can only be drained to the level of the valve and liquid under that level remains inside).

  • Page 86: Implement Limitations

    KUBOTA. Use with implements which are not sold or approved by KUBOTA and which exceed the maximum specifications listed below, or which are otherwise unfit for use with the KUBOTA Tractor may result in malfunctions or failures of the tractor, damage to other property and injury to the operator or others. [Any malfunctions or failures of the tractor resulting from use with improper implements are not covered by the warranty.]...
  • Page 87 ME5700, WSM GENERAL Implement Remarks ME5700 Max. Tank Capacity 3000 L (792 U.S.gals., 660 Imp.gals.) Slurry Tank Max. Load Capacity 4000 kg (8800 lbs) Max. Load Capacity 5000 kg (11000 lbs) Trailer Max. Drawbar Load 800 kg (1760 lbs) Max. Cutting Width 2130 mm (84 in.)
  • Page 88 ME5700, WSM GENERAL Implement Remarks ME5700 Max. Cutting Width 1820 mm (72 in.) Box Blade Max. Weight 450 kg (1000 lbs) Max. Digging Depth 2530 mm (100 in.) Back Hoe *2 Max. Weight 900 kg (2000 lbs) Max. Width 1820 mm (72 in.) Snow Blade Max.
  • Page 89 ENGINE KiSC issued 04, 2006 A...
  • Page 90 CONTENTS 1. LUBRICATING SYSTEM....................1-M1 2. COOLING SYSTEM ......................1-M2 3. FUEL SYSTEM .........................1-M3 KiSC issued 04, 2006 A...
  • Page 91 ME5700, WSM ENGINE 1. LUBRICATING SYSTEM (1) Rocker Arm and Rocker Arm Shaft (2) Oil Pressure Switch (3) Camshaft (4) Piston (5) Oil Filter Cartridge (6) Relief Valve (7) Oil Strainer (8) Oil Pump This engine's lubricating system consists of oil strainer (7), oil pump (8), relief valve (6), oil filter cartridge (5) and oil pressure switch (2).
  • Page 92 ME5700, WSM ENGINE 2. COOLING SYSTEM (1) Radiator (2) Cooling Fan (3) Thermostat (4) Water Pump (5) Cylinder Head Water Jacket (6) Cylinder Block Water Jacket The cooling system consists of a radiator (1), a centrifugal water pump (4), a cooling fan (2) and a thermostat (3).
  • Page 93 ME5700, WSM ENGINE 3. FUEL SYSTEM (1) Fuel Tank (2) Fuel Overflow Pipe (3) Injection Nozzle (4) Injection Pipe (5) Injection Pump (6) Fuel Lift Pump (7) Fuel Filter Fuel from the fuel tank (1) passes through the fuel filter (7), and then enters the injection pump (5) after impurities such as dirt, water, etc.
  • Page 94 CONTENTS 1. TROUBLESHOOTING....................... 1-S1 2. SERVICING SPECIFICATIONS ..................1-S4 3. TIGHTENING TORQUES ....................1-S10 4. CHECKING, DISASSEMBLING AND SERVICING ............1-S11 [1] SEPARATING ENGINE FROM TRACTOR ..............1-S11 (1) Disassembling and Assembling................1-S11 [2] ENGINE BODY ......................1-S25 (1) Checking and Adjusting..................1-S25 (2) Disassembling and Assembling................

  • Page 95: Troubleshooting

    ME5700, WSM ENGINE 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Engine Does Not Start No fuel Replenish fuel Air in the fuel system Bleed G-34 Water in the fuel system Change fuel and G-24 repair or replace fuel system...
  • Page 96 ME5700, WSM ENGINE Reference Symptom Probable Cause Solution Page Engine Revolution Is Fuel filter clogged or dirty Change G-23, 28 Not Smooth Air cleaner clogged Clean or replace G-22 Fuel leak due to loose injection pipe retaining Tighten retaining nut...
  • Page 97 ME5700, WSM ENGINE Reference Symptom Probable Cause Solution Page Water Mixed into Head gasket defective Replace 1-S31 Lubricant Oil Cylinder block or cylinder head flawed Replace 1-S43 Low Oil Pressure Engine oil insufficient Replenish G-15 Oil strainer clogged Clean 1-S38...

  • Page 98: Servicing Specifications

    ME5700, WSM ENGINE 2. SERVICING SPECIFICATIONS ENGINE BODY Item Factory Specification Allowable Limit Compression Pressure (When Cracking with Starting Motor) 3.53 to 3.72 MPa 2.55 MPa 36 to 38 512 to 540 psi 370 psi Difference among Cylinder 10 % or less Top Clearance 0.55 to 0.70 mm...
  • Page 99 ME5700, WSM ENGINE ENGINE BODY (Continued) Item Factory Specification Allowable Limit Valve Timing (Intake Valve) Open 0.21 rad. (12 ) before T.D.C Close 0.63 rad. (36 ) after B.D.C Valve Timing (Exhaust Valve) Open 1.05 rad. (60 ) before B.D.C Close 0.21 rad.
  • Page 100 ME5700, WSM ENGINE ENGINE BODY (Continued) Item Factory Specification Allowable Limit Camshaft Alignment 0.01 mm 0.0004 in. Camshaft Side Clearance 0.07 to 0.22 mm 0.30 mm 0.0028 to 0.0087 in. 0.0118 in. Cam (Intake / Exhaust) Height 33.463 to 33.483 mm 33.42 mm...
  • Page 101 ME5700, WSM ENGINE ENGINE BODY (Continued) Item Factory Specification Allowable Limit Connecting Rod Alignment 0.05 mm 0.0020 in. Crankshaft Journal to Crankshaft Bearing 1 Oil Clearance 0.040 to 0.118 mm 0.20 mm 0.00157 to 0.00465 in. 0.0079 in. Crankshaft Journal 51.921 to 51.940 mm...
  • Page 102 ME5700, WSM ENGINE LUBRICATING SYSTEM Item Factory Specification Allowable Limit Engine Oil Pressure At Idle Speed 98 kPa or more 49 kPa or more 14 psi or more 7 psi At Rated Speed 294 to 441 kPa 245 kPa 3.0 to 4.5...
  • Page 103 ME5700, WSM ENGINE FUEL SYSTEM Item Factory Specification Allowable Limit Injection Pump Injection Timing 0.314 to 0.349 rad (18 to 20 ) before T.D.C. Pump Element Fuel Tightness 14.7 MPa 2131 psi Delivery Valve Fuel Tightness 5 seconds or more...

  • Page 104: Tightening Torques

    ME5700, WSM ENGINE 3. TIGHTENING TORQUES Tightening torques of screws and nuts on the table below are especially specified. (For general use screws and nuts : See page G-10.) Item ft-lbs Oil cooler pipes 49.0 to 68.6 5.0 to 7.0 36.2 to 50.6...

  • Page 105: Checking, Disassembling And Servicing

    ME5700, WSM ENGINE 4. CHECKING, DISASSEMBLING AND SERVICING [1] SEPARATING ENGINE FROM TRACTOR (1) Disassembling and Assembling (A) Draining Coolant, Engine Oil, Transmission Fluid and Fuel Draining Coolant Never remove the radiator cap until coolant temperature is well below its boiling point. Then loosen cap slightly to the stop to relieve any excess pressure before removing cap completely.
  • Page 106 43.0 L CABIN 45.4 U.S.qts 37.8 Imp.qts Use only KUBOTA UDT or SUPER UDT fluid. Use of other fluids may damage the transmission or hydraulic system. Refer to "LUBRICANTS, FUEL AND COOLANT" (See page G-8.) Do not mix difference brands oil together.
  • Page 107 ME5700, WSM ENGINE (B) Separation Front Axle Frame As A Unit (ROPS Type) Muffler and Bonnet 1. Remove the muffler (3). 2. Remove the bonnet (1) with mirror (2). 3. Disconnect the battery's cable (6). 4. Remove the side covers (4).
  • Page 108 ME5700, WSM ENGINE Wire Harness RH, Battery and Oil Cooler Pipe 1. Remove the bonnet stay (1). 2. Remove the battery (4). 3. Disconnect the air cleaner sensor connectors (2). 4. Disconnect the horn connectors (3). 5. Disconnect the stop solenoid connector (6).
  • Page 109 ME5700, WSM ENGINE Front Axle Frame as a Unit 1. Check the front axle and clutch housing case are securely mounted on the disassembling stands. 2. Separate the front axle support as a unit after removing the front axle frame mounting screws.
  • Page 110 ME5700, WSM ENGINE Wire Harness, Power Steering Hose and Oil Cooler Pipe 1. Disconnect the oil cooler pipes (1). 2. Disconnect the stop solenoid connector (3). 3. Remove the radiator hose (4). 4. Disconnect the air cleaner sensor connectors (5).
  • Page 111 ME5700, WSM ENGINE Air Conditioner Parts 1. Remove the air conditioner belt (6) and remove the compressor (3) mounting screws. 2. Disconnect the air cleaner hose (7). 3. Disconnect the recovery tank hose (1). 4. Remove the radiator upper hose (2) and lower hose (5).
  • Page 112 ME5700, WSM ENGINE Front Axle Frame as a Unit 1. Check the front axle and clutch housing case are securely mounted on the disassembling stands. 2. Separate the front axle support as a unit after removing the front axle frame mounting screws.
  • Page 113 ME5700, WSM ENGINE (D) Separating Engine (ROPS Type) Steering Wheel, Meter Panel and Rear Bonnet 1. Remove the steering wheel (2) with a steering wheel puller (Code No. 07916-51090). 2. Remove the shuttle lever grip (1) and remove the shuttle lever guide (4).
  • Page 114 ME5700, WSM ENGINE Wire Harness L.H. and Power Steering Hose Clamps 1. Remove the power steering hose clamps (2). 2. Disconnect the alternator 2P connector (1) and B terminal. 3. Disconnect the starter motor C terminal and B terminal (3).
  • Page 115 ME5700, WSM ENGINE Separating Engine from Clutch Housing 1. Hoist the engine by the hoist and chain. 2. Remove the engine mounting screws and nuts, and separate the engine from the clutch housing. (When reassembling) Apply molybdenum disulphide (Three Bond 1901 or equivalent) to the splines of clutch disc boss.
  • Page 116 ME5700, WSM ENGINE Damper Disc 1. Remove the dumper disc. (When reassembling) Confirm that the bearing is surely assembled to the flywheel. Direct the shorter end of the dumper disc boss toward the flywheel. Apply molybdenum disulphide (Three Bond 1901 or equivalent) to the shaft A.
  • Page 117 ME5700, WSM ENGINE (E) Separating Engine (CABIN Type) Separating Engine and Clutch Housing 1. Remove the muffler (9). 2. Remove the delivery pipes (6) and suction pipe (7). 3. Disconnect the hour meter cable (3). 4. Remove the stop solenoid cover (4).
  • Page 118 ME5700, WSM ENGINE Damper Disc 1. Remove the dumper disc. (When reassembling) Confirm that the bearing is surely assembled to the flywheel. Direct the shorter end of the dumper disc boss toward the flywheel. Apply molybdenum disulphide (Three Bond 1901 or equivalent) to the shaft A.

  • Page 119: Engine Body

    ME5700, WSM ENGINE [2] ENGINE BODY (1) Checking and Adjusting Compression Pressure 1. After warming up the engine, stop it and remove the air cleaner, the muffler and all nozzles. 2. Set a compression tester (Code No: 07909-30208) with the adaptor to the nozzle hole.
  • Page 120 ME5700, WSM ENGINE Top Clearance 1. Remove the cylinder head. (Do not attempt to remove the cylinder head gasket.). 2. Move the piston up, and stick a strip of fuse [1.5 mm dia. (0.059 in. dia.), 5 to 7 mm long (0.197 to 0.276 in. long)] on the piston head at three positions with grease so as to avoid the intake and exhaust valves and the combustion chamber ports.
  • Page 121 ME5700, WSM ENGINE Valve Clearance The valve clearance must be checked and adjusted when engine is cold. 1. Remove the cylinder head cover. 2. Align the "1TC" mark (2) on the flywheel and projection (1) on the housing so that the No.1 piston comes to the compression top dead center.

  • Page 122: Disassembling And Assembling

    ME5700, WSM ENGINE (2) Disassembling and Assembling (A) Cylinder Head Cylinder Head Cover 1. Remove the head cover cap nuts. 2. Remove the cylinder head cover (1). (When reassembling) Check to see if the head cover gasket is not defective.
  • Page 123 ME5700, WSM ENGINE Nozzle Heat Seal Service Removal Procedure Use a plus (phillipis head) screw driver (1) that has a Dia. which is bigger than the heat seal hole (Approx. 6 mm) 1/ 4 in. 1. Plus screw driver (1) lightly into the heat seal hole.
  • Page 124 ME5700, WSM ENGINE Rocker Arm 1. Remove the rocker arm bracket nuts (2). 2. Detach the rocker arm assembly (1). (When reassembling) Always adjust the valve clearance. Before installing the rocker arm bracket, check to see in there any metallic particles on the surface on which the assembly is mounted.
  • Page 125 ME5700, WSM ENGINE Cylinder Head 1. Loosen the pipe clam, and remove the water return pipe. 2. Remove the cylinder head screw in the order of (22) to (1). 3. Lift up the cylinder head to detach. (When reassembling) Tighten the cylinder head screws after applying sufficient oil.
  • Page 126 ME5700, WSM ENGINE Valves 1. Remove the valve caps (2). 2. Remove the valve spring collet (3), pushing the valve spring retainer (4) by valve spring replacer (1). 3. Remove the valve spring retainer (4), valve spring (5) and valve stem seal (6).
  • Page 127 ME5700, WSM ENGINE Fuel Lift Pump 1. Loosen the pipe clamp, and remove the fuel pipe from the injection pump side. 2. Remove the fuel lift pump (1). (When ressembling) Apply a liquid gasket (Three Bond 1215 or equivalent) to the both sides of fuel lift pump gasket.
  • Page 128 ME5700, WSM ENGINE Governor Spring 1. Disconnect the governor spring 1 (1) and 2 (2) from the fork lever 2 (3). (When reassembling) Fix the governor spring to the speed control lever, and pull the spring or wire through the window of the injection pump, and spring will be able to the hooked on the governor fork with ease.
  • Page 129 ME5700, WSM ENGINE Hourmeter Unit 1. Remove the hourmeter unit. (When reassembling) Apply a liquid gasket (Three Bond 1104 or equivalent) to both sides of the gasket. Ensure that the extremity convex section (2) of the hourmeter unit is inserted into groove (1) of the fuel camshaft.
  • Page 130 ME5700, WSM ENGINE Oil Pump 1. Loosen the oil pump drive gear 1 mounting nut (3). 2. Draw out the oil pump drive gear 2 (2) with a special use puller set (Code No. 07916-09032). 3. Remove the oil pump drive gear 1 mounting nut, and draw out the oil pump drive gear 1 (1) with a special use puller set.
  • Page 131 ME5700, WSM ENGINE Gear and Camshaft 1. Remove the camshaft stopper mounting screws. 2. Draw out the camshaft and the cam gear. (When reassembling) Apply a thin film of engine oil to the camshaft before installation. (1) Camshaft Stopper 0000002481E Fuel Camshaft and Fork Lever Assembly 1.
  • Page 132 ME5700, WSM ENGINE (C) Crankcase Cylinder Head Assembly 1. Remove the cylinder head assembly. (See page 1-S28 to 1-S31.) 0000002485E Timing Gear 1. Remove the timing gear. (See page 1-S32 to 1-S36.) 0000002487E Oil Pan and Oil Strainer 1. Remove the oil pan mounting screws.
  • Page 133 ME5700, WSM ENGINE Connecting Rod Cap 1. Remove the connecting rod caps (1). (When reassembling) Apply engine oil to the connecting rod screws. Align the marks (a) with each other. (Face the marks toward the injection pump.) 44.1 to 49.0...
  • Page 134 ME5700, WSM ENGINE Piston Ring and Connecting Rod 1. Remove the piston rings using a piston ring tool (Code No. 07909-32121). 2. Remove the piston pin (1), and separate the connecting rod (7) from the piston (2). (When reassembling) When installing the ring, assemble the rings so that the manufactureís mark (13) near the gap faces the top of the...
  • Page 135 ME5700, WSM ENGINE Flywheel 1. Remove the starter motor (1). 2. Lock the flywheel not to turn using the flywheel stopper. 3. Remove the flywheel screws, except for two which must be loosened and left as they are. 4. Set a flywheel puller, and remove the flywheel.
  • Page 136 ME5700, WSM ENGINE Crankshaft 1. Remove the main bearing case screw 2 (1). 2. Pull out the crankshaft, taking care not to damage the crankshaft bearing 1. (When reassembling) Apply oil to the main bearing case screw 2 (1). Clean the oil passage of the crankshaft with compressed air.

  • Page 137: Servicing

    ME5700, WSM ENGINE (3) Servicing (A) Cylinder Head Cylinder Head Surface Flatness 1. Clean the cylinder head surface. 2. Place a straightedge on the cylinder head's four sides and two diagonals as shown in the figure. 3. Measure the clearance with a thickness gauge.
  • Page 138 ME5700, WSM ENGINE Clearance between Valve Stem and Valve Guide 1. Remove carbon from the valve guide section. 2. Measure the valve stem O.D. with an outside micrometer. 3. Measure the valve guide I.D. with a small hole gauge, and calculate the clearance.
  • Page 139 ME5700, WSM ENGINE Valve Recessing 1. Clean the cylinder head surface, valve face and valve seat. 2. Insert the valve into the valve guide. 3. Measure the valve recessing with a depth gauge. 4. If the measurement exceeds the allowable limit, replace the valve.
  • Page 140 ME5700, WSM ENGINE Correcting Valve and Valve Seat Before correcting the valve and seat, check the valve stem and the I.D. of valve guide section, and repair them if necessary. After correcting the valve seat, be sure to check the valve recessing.
  • Page 141 ME5700, WSM ENGINE Free Length and Tilt of Valve Spring 1. Measure the free length (A) of valve spring with vernier calipers. If the measurement is less than the allowable limit, replace it. 2. Put the valve spring on a surface plate, place a square on the side of the valve spring.
  • Page 142 ME5700, WSM ENGINE Push Rod Alignment 1. Place the push rod on V blocks. 2. Measure the push rod alignment. 3. If the measurement exceeds the allowable limit, replace the push rod. 0.25 mm Push rod alignment Allowable limit 0.0098 in.
  • Page 143 ME5700, WSM ENGINE Camshaft Alignment 1. Support the camshaft with V blocks on the surface plate at both end journals. 2. Set a dial indicator with its tip on the intermediate journal. 3. Measure the camshaft alignment. 4. If the measurement exceeds the allowable limit, replace the camshaft.
  • Page 144 ME5700, WSM ENGINE Replacing Idle Gear Bushing (When removing) 1. Press out the used idle gear bushing using an idle gear bushing replacing tool. (When installing) 1. Clean a new idle gear bushing and idle gear bore, and apply engine oil to them.
  • Page 145 ME5700, WSM ENGINE (C) Crankcase Piston Pin Bore I.D. 1. Measure the piston pin bore I.D. in both the horizontal and vertical directions with a cylinder gauge. 2. If the measurement exceeds the allowable limit, replace the piston. 25.000 to 25.013 mm Factory spec.
  • Page 146 ME5700, WSM ENGINE Piston Ring Gap 1. Insert the piston ring into the lower part of the liner (the least worn out part) with the piston ring compressor and piston. 2. Measure the ring gap with a thickness gauge. 3. If the measurement exceeds the allowable limit, replace the piston ring.
  • Page 147 ME5700, WSM ENGINE Oil Clearance between Crankshaft Journal and Crankshaft Bearing 1 1. Measure the O.D. of the crankshaft front journal with an outside micrometer. 2. Measure the I.D. of the crankshaft bearing 1 with an inside micrometer, and calculate the oil clearance.
  • Page 148 ME5700, WSM ENGINE Replacing Crankshaft Bearing 1 (When removing) 1. Press out the used crankshaft bearing 1 using a crankshaft bearing 1 replacing tool. (When installing) 1. Clean a new crankshaft bearing 1 and crankshaft journal bore, and apply engine oil to them.
  • Page 149 ME5700, WSM ENGINE Oil Clearance between Crankshaft Journal and Crankshaft Bearing 2 1. Put a strip of plastigage (Code No. 07909-30241) on the center of the journal. 2. Install the bearing case and tighten the baring case screws 1 to the specified torque, and remove the bearing case again.
  • Page 150 ME5700, WSM ENGINE Crankshaft Alignment 1. Support the crankshaft with V blocks on the surface plate at both end journals. 2. Set a dial indicator with its tip on the intermediate journal. 3. Measure the crankshaft alignment. 4. If the measurement exceeds the allowable limit, replace the crankshaft.
  • Page 151 ME5700, WSM ENGINE Crankshaft Side Clearance 1. Set a dial indicator with its tip on the end of the crankshaft. 2. Measure the side clearance by moving the crankshaft to the front and rear. 3. If the measurement exceeds the allowable limit, replace the thrust bearings.
  • Page 152 ME5700, WSM ENGINE Oil Clearance between Crankpin and Crankpin Bearing 1. Clean the crankpin and crankpin bearing. 2. Put a strip of plastigage (Code No.: 07909-30241) on the center of the crankpin. 3. Install the connecting rod cap and tighten the connecting rod screws to the specified torque, and remove the cap again.
  • Page 153 ME5700, WSM ENGINE Crankshaft Sleeve Wear 1. Check the wear (A) on the crankshaft sleeve (1). 2. If the wear exceeds the allowable limit or when the engine oil leaks, replace the crankshaft sleeve. 0.10 mm Wear of sleeve Allowable limit 0.0039 in.
  • Page 154 ME5700, WSM ENGINE Cylinder Wear 1. Measure the I.D. of the cylinder at the six positions (see figure) with a cylinder gauge to find the maximum and minimum I.D.'s. 2. Get the difference (Maximum wear) between the maximum and the minimum I.D.'s.

  • Page 155: Lubricating System

    ME5700, WSM ENGINE [3] LUBRICATING SYSTEM (1) Checking Engine Oil Pressure 1. Remove the engine oil pressure switch, and install the oil pressure tester (Code No. 07916-32032) with adaptor 7 (Code No. 07916-32591). 2. Start the engine. After warming up, measure the oil pressure of both idling and rated speeds.

  • Page 156: Servicing

    ME5700, WSM ENGINE (3) Servicing Rotor Lobe Clearance 1. Measure the clearance between lobes of the inner rotor and the outer rotor with a thickness gauge. 2. If the clearance exceeds the allowable limit, replace the oil pump rotor assembly.

  • Page 157: Cooling System

    ME5700, WSM ENGINE [4] COOLING SYSTEM (1) Checking and Adjusting Fan Belt Tension 1. Measure the deflection (A), depressing the belt halfway between the fan drive pulley and dynamo pulley at specified force (98 N, 10 kgf, 22 lbs). 2. If the measurement is not within the factory specifications, loosen the dynamo mounting screws and relocate the dynamo to adjust.

  • Page 158: Disassembling And Assembling

    ME5700, WSM ENGINE Radiator Cap Air Leakage 1. Set a radiator tester (Code No. 07909-31551) on the radiator cap. 2. Apply the specified pressure of 88 kPa (0.9 , 13 psi), and measure the time for the pressure to fall to 59 kPa (0.6 , 9 psi) 3.

  • Page 159: Servicing

    ME5700, WSM ENGINE (3) Servicing Thermostat Valve Opening Temperature 1. Suspend the thermostat in the water by a string with its end inserted between the valve and seat. 2. Heating the water gradually, read the temperature when the valve opens and leaves the string.

  • Page 160: Fuel System

    ME5700, WSM ENGINE [5] FUEL SYSTEM (1) Checking and Adjusting (A) Injection Pump Injection Timing 1. Remove the injection pipes. 2. Set the speed control lever to maximum fuel discharge position. 3. The injection pump has a displacement. In adjusting the injection timing, pull the stop lever (2) from its free position (3) by 0.401 to 0.471 rad (23 to 27 ) toward the stop position.
  • Page 161 ME5700, WSM ENGINE Fuel Tightness of Pump Element 1. Remove the injection pipe. 2. Install the injection pump pressure tester to the injection pump. 3. Set the speed control lever to the maximum speed position. 4. Turn the flywheel ten times or more to increase the pressure.
  • Page 162 ME5700, WSM ENGINE (B) Injection Nozzle Check the injection pressure and condition after confirming that there is nobody standing in the direction the fume goes. If the fume from the nozzle directly contacts the human body, cells may be destroyed and blood poisoning may be caused.

  • Page 163: Disassembling And Assembling

    ME5700, WSM ENGINE Valve Seat Tightness 1. Set the injection nozzle to a nozzle tester (Code No. 07909- 31361). 2. Raise the fuel pressure, and keep at 12.75 MPa (130 1849 psi) for 10 seconds. 3. If any fuel leak is found, replace the nozzle piece.
  • Page 164 CLUTCH KiSC issued 04, 2006 A...
  • Page 165 CONTENTS 1. LINKAGE ...........................2-M1 [1] TRAVELLING........................2-M1 (1) ROPS Type ......................2-M1 (2) CABIN Type......................2-M1 2. PTO CLUTCH........................2-M2 [1] STRUCTURE ........................2-M2 [2] PTO CLUTCH OPERATION ..................2-M3 3. PTO LINKAGE........................2-M5 KiSC issued 04, 2006 A...

  • Page 166: Linkage

    ME5700, WSM CLUTCH 1. LINKAGE [1] TRAVELLING (1) ROPS Type (1) Clutch Rod 1 (2) Clutch Rod 2 (3) Clutch Spool (4) Clutch Pedal 0000002542E (2) CABIN Type (1) Clutch Pedal (2) Clutch Cable (3) Clutch Spool 0000002543E KiSC issued 04, 2006 A...

  • Page 167: Pto Clutch

    ME5700, WSM CLUTCH 2. PTO CLUTCH [1] STRUCTURE (1) PTO Propeller Shaft 1 (4) Gear Shaft (7) Clutch Disc (9) Pressure Plate (2) PTO Clutch Pack (5) PTO Shaft (8) Draive Plate (10) Flywheel (3) PTO Propeller Shaft 2 (6) Clutch Piston As shown in the figure above, the PTO propeller shaft 1 (1) is always rotated while the engine runs.

  • Page 168: Pto Clutch Operation

    ME5700, WSM CLUTCH [2] PTO CLUTCH OPERATION PTO Clutch "Engaged" The oil from power steering controller flows into the clutch valve (1). When the PTO shift lever is set at the "Engaged" position, the spool (2) is turned to A position, then oil flows through the spool (2) into the modulating valve and the clutch pack.
  • Page 169 ME5700, WSM CLUTCH PTO Clutch "Disengaged" When the PTO shift lever is set at the "Disengaged" position, the spool (2) is turned to B position, then the oil from the power steering controller is stopped by the spool (2) and the oil in the PTO clutch pack drained into the tank.

  • Page 170: Pto Linkage

    ME5700, WSM CLUTCH 3. PTO LINKAGE (1) PTO Clutch Lever (2) PTO Clutch Valve A : ROPS Type B : CABIN Type 0000002548E KiSC issued 04, 2006 A 2-M5...
  • Page 171 CONTENTS 1. TROUBLESHOOTING....................... 2-S1 2. SERVICING SPECIFICATIONS ..................2-S2 3. TIGHTENING TORQUES ....................2-S3 4. CHECKING, DISASSEMBLING AND SERVICING ............2-S4 [1] TRAVELLING CLUTCH ....................2-S4 (1) Checking and Adjusting................... 2-S4 [2] PTO CLUTCH VALVE ....................2-S7 (1) Disassembling and Assembling................2-S7 [3] PTO CLUTCH .........................

  • Page 172: Troubleshooting

    ME5700, WSM CLUTCH 1. TROUBLESHOOTING TRAVELLING CLUTCH Reference Symptom Probable Cause Solution Page Clutch Drags Clutch pedal free travel excessive Adjust 2-S4 to S6 Shuttle valve spool sticking Replace Clutch Slips Clutch pedal free travel too small Adjust 2-S4 to S6...

  • Page 173: Servicing Specifications

    ME5700, WSM CLUTCH 2. SERVICING SPECIFICATIONS TRAVELLING CLUTCH Item Factory Specification Allowable Limit Clutch Pedal ROPS 170 to 175 mm (Total Stroke) 6.7 to 6.9 in. CABIN 165 to 170 mm (Total Stroke) 6.5 to 6.7 in. Clutch Pedal ROPS 24.0 to 30.0 mm...

  • Page 174: Tightening Torques

    ME5700, WSM CLUTCH 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : See page G-10.) Item ft-lbs PTO clutch control valve mounting screw 23.5 to 27.5 2.4 to 2.8...

  • Page 175: Checking, Disassembling And Servicing

    ME5700, WSM CLUTCH 4. CHECKING, DISASSEMBLING AND SERVICING [1] TRAVELLING CLUTCH (1) Checking and Adjusting (A) Clutch Pedal (ROPS Type) Clutch Pedal Stroke 1. Stop the engine and remove the key. 2. Measure the clutch pedal stroke A. 3. If the measurement is not within the factory specifications, adjust with stopper bolt (2).
  • Page 176 ME5700, WSM CLUTCH (B) Clutch Pedal (CABIN Type) Clutch Pedal Stroke 1. Stop the engine and remove the key. 2. Screw the lock nuts (1), (2) to the threaded end of cable as shown in figure. 3. Measure the clutch pedal stroke A.
  • Page 177 ME5700, WSM CLUTCH Clutch Pedal Free Travel Before checking the clutch pedal free travel A, be sure to adjust the pedal stroke. 1. Remove the floor mat 1 (1), floor mat 2 (2) and cover (3). 2. Measure the clutch pedal free travel.
  • Page 178 ME5700, WSM CLUTCH [2] PTO CLUTCH VALVE (1) Disassembling and Assembling Removing PTO Clutch Valve 1. Disconnect the suction pipe (1) and three point hydraulic system delivery pipe (2). 2. Remove the differential lock rod (4). 3. Disconnect the PTO clutch cable at PTO valve side.
  • Page 179 43.0 L CABIN 45.4 U.S.qts 37.8 Imp.qts Use only KUBOTA UDT or SUPER UDT fluid. Use of other fluids may damage the transmission or hydraulic system. Refer to "LUBRICANTS, FUEL AND COOLANT" (See page G-8.) Do not mix difference brands oil together.
  • Page 180 ME5700, WSM CLUTCH (B) Separating Transmission Case (ROPS Type) Rear Wheels, Fenders and Bonnet 1. Check the clutch housing case and transmission case are securely mounted on the disassembling stands. 2. Remove the rear wheels (2). 3. Disconnect the jumper leads for hazard and tail light.
  • Page 181 ME5700, WSM CLUTCH ROPS, Seat and Center Frame 1. Remove the seat (3). 2. Remove the draft and position control lever grips (9). 3. Remove the auxiliary speed change control lever plate (5). 4. Remove the DT shift lever grip (4) and 3-point hitch lowering speed control grip (6).
  • Page 182 ME5700, WSM CLUTCH Steering Wheel, Meter Panel and Rear Bonnet 1. Remove the steering wheel (2) with a steering wheel puller (Code No. 07916-51090). 2. Remove the shuttle lever grip (1) and remove the shuttle lever guide (4). 3. Remove the main shift lever (3).
  • Page 183 ME5700, WSM CLUTCH Steps and Clutch Housing Cover 1. Disconnect the foot accelerator rod (3). 2. Remove the rubber mat (1). 3. Remove the clutch housing cover (2). 4. Remove the steps (4). 5. Disconnect the wire harness. (When reassembling) 48.1 to 55.9...
  • Page 184 ME5700, WSM CLUTCH Separating Transmission Case 1. Remove the transmission upper cover (3). 2. Remove the transmission case mounting screws and nut, and separate the transmission case from the clutch housing. (When reassembling) Apply liquid gasket (Three Bond 1216 or equivalent) to joint...
  • Page 185 ME5700, WSM CLUTCH (C) Separating Transmission Case (CABIN Type) Before proceeding this section, dismounting the cabin assembly. (See page 10-S24 to S29.) 0000002595E Lift Rods and Lower Links 1. Remove the lift rods (1). 2. Remove the lower links (2) with stabilizer.
  • Page 186 ME5700, WSM CLUTCH Shuttle Valve 1. Remove the return spring (3). 2. Remove the clutch rod (2). 3. Remove the shuttle valve assembly (1). (When reassembling) Apply oil to the O-ring (4). Apply liquid gasket (Three Bond 1216 or equivalent) to joint face of the shuttle valve assembly and transmission case.
  • Page 187 ME5700, WSM CLUTCH Separating Transmission Case 1. Remove the transmission case mounting screws and nut, and separate the transmission case from the clutch housing. (When reassembling) Apply liquid gasket (Three Bond 1216 or equivalent) to joint face of the transmission case clutch housing, transmission upper cover and transmission case.
  • Page 188 ME5700, WSM CLUTCH (E) Disassembling PTO Clutch Pack Clutch Hub and Clutch Discs 1. Remove the internal snap ring (2), and then take out the clutch discs (3), the back plate (7), the steel plates (8), (9), (10), (11), (12), (13), (14), the hub (1) and the bearings (5).
  • Page 189 ME5700, WSM CLUTCH Modulating Valve 1. Remove the internal snap ring (1). 2. Remove the spring seat (2). 3. Draw out the spring (3) and piston (4). (1) Internal Snap Ring (3) Spring (2) Spring Seat (4) Piston 0000002003E Clutch Case 1.
  • Page 190 ME5700, WSM CLUTCH Piston 1. Press the washer (6) lightly by the hand press, using the hand made jig. (Refer to the figure left.) 2. Draw out the piston (4). (When reassembling) Apply enough transmission fluid to seal rings (3) and (8).
  • Page 191 ME5700, WSM CLUTCH Flatness of PTO Piston and PTO Steel Plate 1. Place the part on a surface plate. 2. Check it unable to insert a thickness gauge (allowable limit size) underneath it at least four points. 3. If the gauge can be inserted, replace it.
  • Page 192 TRANSMISSION KiSC issued 04, 2006 A...
  • Page 193 CONTENTS 1. STRUCTURE........................3-M1 2. POWER TRAIN FOR TRAVELLING GEAR ..............3-M2 [1] SHUTTLE SHIFT SECTION ..................3-M2 [2] MAIN GEAR SHIFT SECTION ..................3-M2 [3] HI-LO, CREEP SHIFT SECTION..................3-M3 [4] FOUR WHEEL DRIVE SECTION .................3-M3 3. POWER TRAIN FOR PTO GEAR .................3-M4 [1] PTO GEAR SECTION ....................3-M4 KiSC issued 04, 2006 A...

  • Page 194: Structure

    ME5700, WSM TRANSMISSION 1. STRUCTURE (1) Shuttle Shift Section (3) Hi-Lo, Creep Shift Section (4) Four Wheel Drive Section (5) PTO Gear Section (2) Main Shift Gear Section 0000002710E KiSC issued 04, 2006 A 3-M1...

  • Page 195: Power Train For Travelling Gear

    ME5700, WSM TRANSMISSION 2. POWER TRAIN FOR TRAVELLING GEAR [1] SHUTTLE SHIFT SECTION (1) Input Shaft R : Reverse (2) 1st Shaft F : Forward (3) Clutch Disc and Plate (4) Coupling 0000002712E [2] MAIN GEAR SHIFT SECTION (1) 1st Shaft...

  • Page 196: Hi-Lo, Creep Shift Section

    ME5700, WSM TRANSMISSION [3] HI-LO, CREEP SHIFT SECTION (1) 2nd Shaft C : Creep (2) Shifter H : Hi Range (3) Hub L : Lo Range (4) 3rd Shaft (5) Shifter (6) Hub 0000002714E [4] FOUR WHEEL DRIVE SECTION (1) 3rd Shaft...

  • Page 197: Power Train For Pto Gear

    ME5700, WSM TRANSMISSION 3. POWER TRAIN FOR PTO GEAR [1] PTO GEAR SECTION (1) PTO Propeller Shaft 540E : 540E (rpm) at (2) Shifter 1828 (rpm) (3) Hub 540 : 540 (rpm) at (4) PTO Shaft 2307 (rpm) 0000002716E KiSC issued 04, 2006 A...
  • Page 198 CONTENTS 1. TROUBLESHOOTING....................... 3-S1 2. SERVICING SPECIFICATIONS ..................3-S2 3. TIGHTENING TORQUES ....................3-S3 4. DISASSEMBLING AND SERVICING ................3-S4 [1] CLUTCH HOUSING......................3-S4 (1) Disassembling and Assembling................3-S4 (2) Servicing........................ 3-S28 [2] TRANSMISSION CASE ....................3-S31 (1) Disassembling and Assembling................3-S31 (2) Servicing........................

  • Page 199: Troubleshooting

    ME5700, WSM TRANSMISSION 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Excessive Transmission fluid insufficient Replenish G-8, 17 Transmission Noise Improper backlash between bevel pinion shaft Repair 3-S51 and spiral bevel gear Improper backlash between differential pinion Adjust 3-S53 and side gear...

  • Page 200: Servicing Specifications

    ME5700, WSM TRANSMISSION 2. SERVICING SPECIFICATIONS Item Factory Specification Allowable Limit Shift Rod Length Approx. 209 mm 8.23 in. Internal Snap Ring to Pressure Plate Clearance R side 1.9 to 2.1 mm (F side) 0.075 to 0.083 in. 3.6 mm...
  • Page 201 ME5700, WSM TRANSMISSION 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : See page G-10.) Item ft-lbs Rear wheel mounting nut 260 to 340 26.5 to 31.0...

  • Page 202: Disassembling And Servicing

    43.0 L CABIN 45.4 U.S.qts 37.8 Imp.qts Use only KUBOTA UDT or SUPER UDT fluid. Use of other fluids may damage the transmission or hydraulic system. Refer to "LUBRICANTS, FUEL AND COOLANT" (See page G-8.) Do not mix difference brands oil together.
  • Page 203 ME5700, WSM TRANSMISSION (B) Separating Engine and Clutch Housing Case (ROPS Type) Muffler and Bonnet 1. Remove the muffler (3). 2. Remove the bonnet (1) with mirror (2). 3. Disconnect the battery's cable (6). 4. Remove the side covers (4).
  • Page 204 ME5700, WSM TRANSMISSION Propeller Shaft 1. Slide the propeller shaft cover (1), (6) after removing the screws (5). 2. Tap out the spring pin (4), (7) and then slide the coupling (3), (8) to the front and rear. (When reassembling) Apply grease to the splines of the propeller shaft (2).
  • Page 205 ME5700, WSM TRANSMISSION Wiring Harness 1. Disconnect the alternator 2P connector (2) and B terminal (1). 2. Disconnect the starter motor B terminal (4) and 1P connector (5). 3. Disconnect the engine oil pressure connector (3). 4. Disconnect the stop solenoid connector (7).
  • Page 206 ME5700, WSM TRANSMISSION ROPS, Seat and Center Frame 1. Remove the seat (3). 2. Remove the draft and position control lever grips (9). 3. Remove the auxiliary speed change control lever plate (5). 4. Remove the DT shift lever grip (4) and 3-point hitch lowering speed control grip (6).
  • Page 207 ME5700, WSM TRANSMISSION Steering Wheel, Meter Panel and Rear Bonnet 1. Remove the steering wheel (2) with a steering wheel puller (Code No. 07916-51090). 2. Remove the shuttle lever grip (1) and remove the shuttle lever guide (4). 3. Remove the main shift lever (3).
  • Page 208 ME5700, WSM TRANSMISSION Steps and Clutch Housing Cover 1. Disconnect the foot accelerator rod (3). 2. Remove the rubber mat (1). 3. Remove the clutch housing cover (2). 4. Remove the steps (4). 5. Disconnect the wire harness. (When reassembling) 48.1 to 55.9...
  • Page 209 ME5700, WSM TRANSMISSION Pedal Frame Assembly 1. Disconnect the clutch rod (8) safety switch connectors (3). 2. Remove the spring (7). Measure and note the length L before removing lock nut (12) of adjusting plate (11). 3. Remove the lock nut (12) and adjusting plate (11).
  • Page 210 ME5700, WSM TRANSMISSION Pedal Frame Assembly (Continued) 10. Remove the main shift lever cable (6). 11. Remove the main shift rod 1 (17) and 2 (18). 12. Remove the pedal frame assembly (1). (When reassembling) When connecting the shuttle lever linkage, make sure that the punched mark A of shuttle rod is upward.
  • Page 211 ME5700, WSM TRANSMISSION Piping for Power Steering 1. Disconnect the delivery pipe (4), return pipe 1 (3), right turning delivery hose (2), left turning delivery hose (1). (When reassembling) 49.0 to 68.6 Delivery pipe and return 5.0 to 7.0 pipe retaining nut 36.2 to 50.6 ft-lbs...
  • Page 212 ME5700, WSM TRANSMISSION Separating Engine from Clutch Housing 1. Remove the engine mounting screws and nuts, and separate the engine from the clutch housing. (When reassembling) Apply molydenum disulphide (Three Bond 1901 or equivalent) to the splines of clutch disc boss.
  • Page 213 ME5700, WSM TRANSMISSION Shuttle Valve and Speed Change Cover 1. Remove the shuttle valve assembly (2). 2. Remove the speed change cover (1). (When reassembling) When reassembling the speed change cover (1), set the shifter and fork in neutral position.
  • Page 214 ME5700, WSM TRANSMISSION Propeller Shaft 1. Slide the propeller shaft cover (1), (6) after removing the screws (5). 2. Tap out the spring pin (4), (7) and then slide the coupling (3), (8) to the front and rear. (When reassembling) Apply grease to the splines of the propeller shaft (2).
  • Page 215 ME5700, WSM TRANSMISSION Brake Rod, Cabin Support and Fuel Tank Support 1. Remove the brake rods (3). 2. Remove the cabin supports (4). 3. Remove the fuel tank supports (2). 4. Disconnect the wire harness (1). (1) Wire Harness (3) Brake Rod...
  • Page 216 ME5700, WSM TRANSMISSION Separating Engine from Clutch Housing 1. Remove the engine mounting screws and nuts, and separate the engine from the clutch housing. (When reassembling) Apply molydenum disulphide (Three Bond 1901 or equivalent) to the splines of clutch disc boss.
  • Page 217 ME5700, WSM TRANSMISSION Shuttle Valve Base 1. Remove the shuttle valve base (1). 2. Remove the speed change cover (2). (When reassembling) Replace the oil pipes (3) with new ones. When reassembling the speed change cover (2), set the shifter and fork in neutral position.
  • Page 218 ME5700, WSM TRANSMISSION DT Gear Case 1. Remove the DT Gear Case (1). (When reassembling) Apply liquid gasket (Three Bond 1216 or equivalent) to joint face of the clutch housing and DT gear case. (1) DT Gear Case (CABIN) 0000002746E...
  • Page 219 ME5700, WSM TRANSMISSION Disassembling Shuttle Case Assembly 1. Remove the screw (1). 2. Separating the shuttle case 1 (3) and shuttle case 2 (2) by screwing M8 x Pitch 1.25 screws into holes A and B. 3. Remove the external snap ring (5) and internal snap ring (6).
  • Page 220 ME5700, WSM TRANSMISSION Shuttle Clutch Assembly 1. Remove the coupling (4) with bearing. 2. Remove the external snap ring (3). 3. Tap out the input shaft (1) to the front side A. 4. Remove the key (12) and other part (see figure.).
  • Page 221 ME5700, WSM TRANSMISSION Shuttle Clutch Pack 1. Remove the internal snap ring (1), and then take out the pressure plate (3), the clutch discs (4) and steel plates (6) and (14). 2. Remove the external snap ring (7) using a shuttle clutch compression tool (see page G-49), and take out the springs (9) and piston (13).
  • Page 222 ME5700, WSM TRANSMISSION Shuttle Clutch Pack (Continued) (1) Internal Snap Ring (12) Clutch Body (2) Belleville Spring (13) Piston (3) Pressure Plate (15) Steel Plate (with rubber) (4) Clutch Disc 0000003145E (E) Disassembling Clutch Housing Shift Levers and Bearing Retainer 1.
  • Page 223 ME5700, WSM TRANSMISSION 2nd Shaft 1. Remove the external snap ring (1). 2. Tap out the 2nd shaft (11) to the rear. 3. Remove the external snap ring (9) with tap out the 2nd shaft (11) to the rear. (When reassembling) Install the protrusion portion (B) of the center rings to the holes (A) of the gear firmly.
  • Page 224 ME5700, WSM TRANSMISSION Shift Fork H-L, C and Shift Fork Rod H-L, C 1. Remove the lock screws (1) and take out the springs (2) and balls (3). 2. Tap out the spring pin (5). 3. Draw out the shift rod (6) and (8).
  • Page 225 ME5700, WSM TRANSMISSION Creep Gear and 3rd Shaft 1. Tap out the 3rd shaft (10) with gears to the front. 2. Remove the external snap ring (26). 3. Tap out the 15T gear shaft (21). 4. Take out the 43T gear (24) and collar (23).

  • Page 226: Servicing

    ME5700, WSM TRANSMISSION Front Drive Shaft 1. Remove the gear case (1) from the clutch housing. 2. Remove the internal snap ring (2), and tap out the idle shaft (4). 3. Remove the oil seal (7) and internal snap ring (8).
  • Page 227 ME5700, WSM TRANSMISSION Clearance between Internal Snap Ring and Pressure Plate 1. Measure the clearance between internal snap ring and pressure plate with a thickness gauge while applying the specified force. Specified force : 196 to 245 N (20 to 25 kgf, 44.1 to 55.1 lbs).
  • Page 228 ME5700, WSM TRANSMISSION Clearance between Shift Fork and Shifter Groove 1. Measure the width of shift fork. 2. Measure the shifter groove width, and calculate the clearance. 3. If the clearance exceeds the allowable limit, replace them. 0.15 to 0.40 mm Factory spec.

  • Page 229: Transmission Case

    43.0 L CABIN 45.4 U.S.qts 37.8 Imp.qts Use only KUBOTA UDT or SUPER UDT fluid. Use of other fluids may damage the transmission or hydraulic system. Refer to "LUBRICANTS, FUEL AND COOLANT" (See page G-8.) Do not mix difference brands oil together.
  • Page 230 ME5700, WSM TRANSMISSION (B) Separating Engine and Clutch Housing Case (ROPS Type) Muffler and Bonnet 1. Remove the muffler (3). 2. Remove the bonnet (1) with mirror (2). 3. Disconnect the battery's cable (6). 4. Remove the side covers (4).
  • Page 231 ME5700, WSM TRANSMISSION Propeller Shaft 1. Slide the propeller shaft cover (1), (6) after removing the screws (5). 2. Tap out the spring pin (4), (7) and then slide the coupling (3), (8) to the front and rear. (When reassembling) Apply grease to the splines of the propeller shaft (2).
  • Page 232 ME5700, WSM TRANSMISSION Steps and Clutch Housing Cover 1. Disconnect the foot accelerator rod (3). 2. Remove the rubber mat (1). 3. Remove the clutch housing cover (2). 4. Remove the steps (4). 5. Disconnect the wire harness. (When reassembling) 48.1 to 55.9...
  • Page 233 ME5700, WSM TRANSMISSION Steering Wheel, Meter Panel and Rear Bonnet 1. Remove the steering wheel (2) with a steering wheel puller (Code No. 07916-51090). 2. Remove the shuttle lever grip (1) and remove the shuttle lever guide (4). 3. Remove the main shift lever (3).
  • Page 234 ME5700, WSM TRANSMISSION Auxiliary Shift Lever and Brake Rod 1. Disconnect the shift rods (1). 2. Remove the shift lever assembly (2). 3. Remove the brake rods (6). 4. Remove the DT rod (5). 5. Remove the parking brake rod (4).
  • Page 235 ME5700, WSM TRANSMISSION Separating Transmission Case 1. Remove the transmission upper cover (3). 2. Remove the transmission case mounting screws and nut, and separate the transmission case from the clutch housing. (When reassembling) Apply liquid gasket (Three Bond 1216 or equivalent) to joint...
  • Page 236 ME5700, WSM TRANSMISSION Hydraulic Cylinder Assembly 1. Remove the delivery pipe. 2. Remove the hydraulic cylinder assembly mounting screws and nuts. 3. Support the hydraulic cylinder assembly with nylon lift strap and hoist, and take out it. 4. Remove the rear axle.
  • Page 237 ME5700, WSM TRANSMISSION Propeller Shaft 1. Slide the propeller shaft cover (1), (6) after removing the screws (5). 2. Tap out the spring pin (4), (7) and then slide the coupling (3), (8) to the front and rear. (When reassembling) Apply grease to the splines of the propeller shaft (2).
  • Page 238 ME5700, WSM TRANSMISSION Brake Rod, Cabin Support and Fuel Tank Support 1. Remove the brake rods (3). 2. Remove the cabin supports (4). 3. Remove the fuel tank supports (2). 4. Disconnect the wire harness (1). (1) Wire Harness (3) Brake Rod...
  • Page 239 ME5700, WSM TRANSMISSION Separating Transmission Case 1. Remove the transmission case mounting screws and nut, and separate the transmission case from the clutch housing. (When reassembling) Apply liquid gasket (Three Bond 1216 or equivalent) to joint face of the transmission case clutch housing, transmission upper cover and transmission case.
  • Page 240 ME5700, WSM TRANSMISSION Hydraulic Cylinder Assembly 1. Remove the delivery pipe. 2. Remove the hydraulic cylinder assembly mounting screws and nuts. 3. Support the hydraulic cylinder assembly with nylon lift strap and hoist, and take out it. 4. Remove the rear axle.
  • Page 241 ME5700, WSM TRANSMISSION (D) Disassembling Transmission Case Differential Lock Fork 1. Remove the clevis pin (1). 2. Remove the plug (2) and take out the adjusting shims (3). 3. Remove the spring holder mounting nuts. 4. Tap out the differential lock shaft (5) with the spring holder (4).
  • Page 242 ME5700, WSM TRANSMISSION Differential Gear Assembly 1. Remove the differential support (1), (5), noting the number of left and right shims (2), (4). 2. Take out the differential gear assembly (3) from transmission case. (When reassembling) Be sure to adjust the turning torque of spiral bevel pinion shaft and differential assembly combined.
  • Page 243 ME5700, WSM TRANSMISSION Spiral Bevel Gear 1. Remove the spiral bevel gear. (When reassembling) Check the spiral bevel gear for wear or damage. If it is no longer serviceable, replace it. Then, also replace the spiral bevel pinion shaft. Apply liquid lock (Three Bond 1372 or equivalent) to the spiral bevel gear UBS screws.
  • Page 244 ME5700, WSM TRANSMISSION Differential Side Gear 1. Take out the differential side gear (2) and differential side gear washer (1). (When reassembling) Check the thrust and bearing surface of both differential side gears (2). If they are worn or damaged, bores in the differential case may also be damaged.
  • Page 245 ME5700, WSM TRANSMISSION Spiral Bevel Pinion Shaft 1. Remove the stake of staking nut (2). 2. Set the staking nut locking wrench (1). 3. Set the spiral bevel pinion shaft turning wrench. 4. Turn the spiral bevel pinion shaft turning wrench to the clockwise, then remove it.
  • Page 246 ME5700, WSM TRANSMISSION (E) Disassembling PTO Gear Case PTO Gear Case 1. Remove the PTO case cover (4) mounting screws and then remove the PTO gear case cover (3). 2. Remove the stake of the staking nut (16), and then remove it.

  • Page 247: Servicing

    ME5700, WSM TRANSMISSION (2) Servicing Checking Bearing 1. Hold the inner race, and push and pull the outer race in all directions to check for wear and roughness. 2. Apply transmission fluid to the bearing, and hold the inner race. Then, turn the outer race to check rotation.
  • Page 248 ME5700, WSM TRANSMISSION Turning Torque of Spiral Bevel Pinion Shaft and Differential Assembly Combined 1. Reassemble the differential assembly with left and right shims (3) same as before disassembling. 2. Check that there is backlash. If there is no backlash, move a left shim to the right.
  • Page 249 ME5700, WSM TRANSMISSION Backlash and Tooth Contact between Spiral Bevel Gear and Spiral Bevel Pinion Shaft 1. Set the dial indicator (lever type) with its finger on the tooth surface. 2. Measure the backlash by fixing the spiral bevel pinion shaft (1) and moving the spiral bevel gear (2) by hand.
  • Page 250 ME5700, WSM TRANSMISSION More than 35 % red lead contact area on the gear tooth surface. The center of tooth contact at 1/3 of the entire width from the small end. (A) Proper Contact 0000002788E Replace the adjusting collar 1 (3) with thicker one to move the spiral bevel pinion shaft backward.
  • Page 251 ME5700, WSM TRANSMISSION Clearance between Differential Pinion Shaft and Differential Pinion 1. Measure the differential pinion shaft O.D. 2. Measure the differential pinion I.D. and calculate the clearance. 3. If the clearance exceed the allowable limit, replace them. 0.060 to 0.102 mm Factory spec.
  • Page 252 ME5700, WSM TRANSMISSION Displacement of Differential Lock Shifter 1. Measure the displacement (A) of the shift fork (3) by pushing down the differential lock pedal as far as not to bend the shift fork to get the displacement of the differential lock shifter (4).

  • Page 253: Rear Axle

    REAR AXLE KiSC issued 04, 2006 A...
  • Page 254 CONTENTS 1. STRUCTURE........................4-M1 KiSC issued 04, 2006 A...
  • Page 255 ME5700, WSM REAR AXLE 1. STRUCTURE (1) Rear Axle (6) Differential Case (10) Differential Gear (14) 25T Planetary Gear (2) Rear Axle Case (7) Differential Side Gear (11) 39T Bevel Gear (15) 65T Internal Gear (3) Planetary Gear Support (8) Differential Pinion Gear...
  • Page 256 CONTENTS 1. TROUBLESHOOTING....................... 4-S1 2. SERVICING SPECIFICATIONS ..................4-S2 3. TIGHTENING TORQUES ....................4-S3 4. DISASSEMBLING AND SERVICING ................4-S4 [1] DISASSEMBLING AND ASSEMBLING................. 4-S4 (1) Separating Rear Axle Case from Transmission Case ..........4-S4 (2) Disassembling Planetary Gear ................4-S8 (3) Disassembling Rear Axle ..................

  • Page 257: Troubleshooting

    ME5700, WSM REAR AXLE 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Excessive or Unusual Improper backlash between brake shaftís 13T Replace 4-S10 Noise at All Time gear and planetary gear Improper backlash between planetary gear Replace 4-S10 and internal gear...

  • Page 258: Servicing Specifications

    ME5700, WSM REAR AXLE 2. SERVICING SPECIFICATIONS Item Factory Specification Allowable Limit Internal Gear to Planetary Gear Backlash 0.08 to 0.30 mm 0.5 mm 0.0031 to 0.0118 in. 0.020 in. Planetary Gear Thrust Collar Thickness 1.55 to 1.65 mm 1.2 mm 0.0610 to 0.0650 in.
  • Page 259 ME5700, WSM REAR AXLE 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : See page G-10.) Item ft-lbs ROPS upper frame mounting screw 149 to 179 15.2 to 18.3...

  • Page 260: Disassembling And Servicing

    43.0 L CABIN 45.4 U.S.qts 37.8 Imp.qts Use only KUBOTA UDT or SUPER UDT fluid. Use of other fluids may damage the transmission or hydraulic system. Refer to "LUBRICANTS, FUEL AND COOLANT" (See page G-8.) Do not mix difference brands oil together.
  • Page 261 ME5700, WSM REAR AXLE Rear Wheel, Fender and ROPS (ROPS Type) 1. Check the rear axle and transmission case securely mounted on the disassembly stands. 2. Loosen the rear wheel mounting nuts. 3. Remove the rear wheel (3). 4. Remove the brake rod (8) and parking brake rod (7).
  • Page 262 ME5700, WSM REAR AXLE Rear Wheel and CABIN Mount Screw (CABIN Type) 1. Place the disassembling stand under the transmission case. 2. Remove the rear wheel. 3. Place the block of wood (2) between cabin and hydraulic cylinder to support the cabin.
  • Page 263 ME5700, WSM REAR AXLE Cabin Mount Bracket (CABIN Type) 1. Remove the cabin mount bracket (1) and (4). (When reassembling) 197 to 225 Cabin mount bracket Tightening torque 20.0 to 23.0 mounting screw 145 to 166 ft-lbs (1) Cabin Mount Upper Bracket...

  • Page 264: Disassembling Planetary Gear

    ME5700, WSM REAR AXLE (2) Disassembling Planetary Gear Planetary Gear Support 1. Remove the brake plate (1). 2. Remove the external snap ring (3). 3. Carefully remove the planetary gear support (2). (1) Brake Plate (3) External Snap Ring (2) Planetary Gear Support...

  • Page 265: Disassembling Rear Axle

    ME5700, WSM REAR AXLE (3) Disassembling Rear Axle Rear Axle 1. Unscrew the rear axle cover mounting screws, and remove the rear axle (1). 77.5 to 90.2 Rear axle cover Tightening torque 7.9 to 9.2 mounting screw 57.1 to 66.5 ft-lbs...

  • Page 266: Servicing

    ME5700, WSM REAR AXLE [2] SERVICING Backlash between Internal Gear and Planetary Gear 1. Set a dial indicator (lever type) on the tooth of the planetary gear. 2. Hold the planetary gear support and move only the planetary gear to measure the backlash.
  • Page 267 BRAKES KiSC issued 04, 2006 A...
  • Page 268 CONTENTS 1. LINKAGE ...........................5-M1 KiSC issued 04, 2006 A...
  • Page 269 ME5700, WSM BRAKES 1. LINKAGE ROPS Type (1) Brake Pedal (3) Parking Brake Turnbuckle (5) Brake Rod (8) Cam Plate (2) Brake Pedal Turnbuckle (6) Brake Plate (9) Parking Brake Lever (4) Brake Cam Lever (7) Brake Disc (10) Parking Brake Rod...
  • Page 270 ME5700, WSM BRAKES CABIN Type (1) Brake Pedal Turnbuckle (3) Parking Brake Turnbuckle (5) Parking Brake Lever (8) Brake Disc (6) Parking Brake Cable (9) Brake Plate (2) Brake Pedal (4) Brake Cam Lever (7) Cam Plate (10) Brake Rod...
  • Page 271 CONTENTS 1. TROUBLESHOOTING....................... 5-S1 2. SERVICING SPECIFICATIONS ..................5-S2 3. TIGHTENING TORQUES ....................5-S3 4. CHECKING, DISASSEMBLING AND SERVICING ............5-S4 [1] BRAKE SYSTEM ......................5-S4 (1) Checking and Adjusting................... 5-S4 [2] BRAKE CASE ......................... 5-S7 (1) Disassembling and Assembling................5-S7 (2) Servicing........................

  • Page 272: Troubleshooting

    ME5700, WSM BRAKES 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Uneven Braking Force Brake pedal free travel unevenly adjusted Adjust 5-S4 Parking brake lever free play unevenly Adjust 5-S5, S6 adjusted Brake disc worn Replace 5-S12 Cam plate warped...

  • Page 273: Servicing Specifications

    ME5700, WSM BRAKES 2. SERVICING SPECIFICATIONS Item Factory Specification Allowable Limit Brake Pedal Free Travel 40 to 45 mm 1.6 to 1.8 in. Parking Brake Cable Position A Length 10 mm 0.39 in. Parking Brake Cable Position B Length 0 mm 0 in.
  • Page 274 ME5700, WSM BRAKES 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : See page G-10.) Item ft-lbs Rear wheel mounting nut 260 to 304 26.5 to 31.0...

  • Page 275: Checking, Disassembling And Servicing

    ME5700, WSM BRAKES 4. CHECKING, DISASSEMBLING AND SERVICING [1] BRAKE SYSTEM (1) Checking and Adjusting (A) Brake Pedal Brake Pedal Free Travel Stop the engine and remove the key, then choke the wheel before checking brake pedal. 1. Release the parking brake.
  • Page 276 ME5700, WSM BRAKES (B) Parking Brake Parking Brake Cable (CABIN Type) Stop the engine and remove the key, then choke the wheel before checking brake pedal. 1. Measure the position A, B and C. 2. If the measurement is not within the factory specifications, loosen the lock nut to adjust the cable length within acceptable limits.
  • Page 277 ME5700, WSM BRAKES Parking Brake Lever Free Play Stop the engine and chock the wheel before checking parking brake lever. 1. Pull the parking brake lever (1) just one notch. 2. Confirm that the clevis pins (2) (4) on both sides of the turnbuckle lightly contact outside of the hole at this time.

  • Page 278: Brake Case

    43.0 L CABIN 45.4 U.S.qts 37.8 Imp.qts Use only KUBOTA UDT or SUPER UDT fluid. Use of other fluids may damage the transmission or hydraulic system. Refer to "LUBRICANTS, FUEL AND COOLANT" (See page G-8.) Do not mix difference brands oil together.
  • Page 279 ME5700, WSM BRAKES Rear Wheel, Fender and ROPS (ROPS Type) 1. Check the rear axle and transmission case securely mounted on the disassembly stands. 2. Loosen the rear wheel mounting nuts. 3. Remove the rear wheel (3). 4. Remove the brake rod (8) and parking brake rod (7).
  • Page 280 ME5700, WSM BRAKES Rear Wheel and CABIN Mount Screw (CABIN Type) 1. Place the disassembling stand under the transmission case. 2. Remove the rear wheel. 3. Place the block of wood (2) between cabin and hydraulic cylinder to support the cabin.
  • Page 281 ME5700, WSM BRAKES Cabin Mount Bracket (CABIN Type) 1. Remove the cabin mount bracket (1) and (4). (When reassembling) 197 to 225 Cabin mount bracket Tightening torque 20.0 to 23.0 mounting screw 145 to 166 ft-lbs (1) Cabin Mount Upper Bracket...
  • Page 282 ME5700, WSM BRAKES Brake Shaft, Brake Disc and Brake Plate 1. Draw out the brake shaft (1) with brake disc (2). 2. Remove the external snap ring (3). 3. Remove the brake plate (4). (When reassembling) Place the brake discs (2) so that the hole "A" of the second disc should be overlapped.

  • Page 283: Servicing

    ME5700, WSM BRAKES (2) Servicing Brake Cam Lever Movement 1. Move the brake cam lever by hand to check the movement.. 2. If the movement is heavy, refine the brake cam with emery paper. 0000002820E Cam Plate Flatness 1. Place the cam plate on the surface plate.
  • Page 284 ME5700, WSM BRAKES Brake Plate Wear 1. Measure the brake plate thickness with vernier calipers. 2. If the measurement is less than the allowable limit, replace it. 2.25 to 2.35 mm Factory spec. 0.0886 to 0.0925 in. Brake plate wear 1.5 mm...

  • Page 285: Front Axle

    FRONT AXLE KiSC issued 04, 2006 A...
  • Page 286 CONTENTS 1. STRUCTURE........................6-M1 KiSC issued 04, 2006 A...
  • Page 287 ME5700, WSM FRONT AXLE 1. STRUCTURE (1) Bevel Gear Case (7) Front Axle Bracket, Front (13) Bevel Gear (19) Pinion Shaft (2) Bevel Gear (8) Differential Pinion (14) Bevel Gear (20) Differential Assembly (3) Front Axle Case (9) Differential Case...
  • Page 288 CONTENTS 1. TROUBLESHOOTING....................... 6-S1 2. SERVICING SPECIFICATIONS ..................6-S2 3. TIGHTENING TORQUES ....................6-S4 4. CHECKING, DISASSEMBLING AND SERVICING ............6-S5 [1] CHECKING AND ADJUSTING ..................6-S5 [2] DISASSEMBLING AND ASSEMBLING................. 6-S7 (1) Separating Front Axle....................6-S7 (2) Disassembling Front Axle..................6-S10 [3] SERVICING ........................

  • Page 289: Troubleshooting

    ME5700, WSM FRONT AXLE 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Front Wheels Wander Tire pressure uneven Adjust G-64 to Right or Left Improper toe-in adjustment (improper Adjust 6-S5 alignment) Clearance between front axle case boss and Replace 6-S19...

  • Page 290: Servicing Specifications

    ME5700, WSM FRONT AXLE 2. SERVICING SPECIFICATIONS Item Factory Specification Allowable Limit Front Wheel Alignment Toe-in 2.0 to 8.0 mm 0.078 to 0.315 in. Front Wheel Steering Angle 0.925 to 0.960 rad 53 to 55 Axial Sway 5.0 mm 0.197 in.
  • Page 291 ME5700, WSM FRONT AXLE Item Factory Specification Allowable Limit Front Axle Case Boss (Rear) to Bracket Clearance 0.025 to 0.190 mm 0.35 mm Bushing 0.00098 to 0.00748 in. 0.0138 in. Front Axle Case 70.000 to 70.035 mm Boss (Rear) 2.75590 to 2.75728 in.
  • Page 292 ME5700, WSM FRONT AXLE 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : See page G-10.) Item ft-lbs Tie-rod end lock nut 166.7 to 196.1 17.0 to 20.0...

  • Page 293: Checking And Adjusting

    ME5700, WSM FRONT AXLE 4. CHECKING, DISASSEMBLING AND SERVICING [1] CHECKING AND ADJUSTING Toe-in 1. Inflate the tires to the specified pressure. 2. Turn the front wheels straight ahead. 3. Measure the toe-in (B-A). 4. If the measurement is not within the factory specifications, adjust the tie-rod length.
  • Page 294 ME5700, WSM FRONT AXLE Adjusting Front Axle Pivot 1. Jack up the tractor body, then loosen the lock nut (2). 2. Measure the adjusting screw tightening torque. 3. If tightening torque is not within the factory specifications, adjust the adjusting screw (1).

  • Page 295: Disassembling And Assembling

    After filling, reinstall the filling port plug (1). 8.0 L Capacity Front axle case oil 8.5 U.S.qts 7.0 Imp.qts Use KUBOTA UDT or SUPER UDT fluid or SAE80, 90 gear oil. Refer to "LUBRICANTS, FUEL AND COOLANT" (See page G-8.) (1) Filling Port Plug (2) Drain Plug...
  • Page 296 ME5700, WSM FRONT AXLE Power Steering Hoses 1. Disconnect the power steering hoses (1), (2) from steering cylinder. (When reassembling) Connect the power steering hose 1 with green tape to the RH. 24.5 to 29.4 Power steering hose 2.5 to 3.0 retaining nut 18.1 to 21.7 ft-lbs...
  • Page 297 ME5700, WSM FRONT AXLE Tie-rod 1. Pull out the cotter pin and loosen the tie-rod end slotted nut. 2. Disconnect the tie-rod with a tie-rod end lifter (Code No. 07909-39051). (When reassembling) After tightening the tie-rod end nut to the specified torques, install a cotter pin as shown in the figure.

  • Page 298: Disassembling Front Axle

    ME5700, WSM FRONT AXLE (2) Disassembling Front Axle Bevel Gear Case and Front Gear Case 1. Remove the bevel gear case mounting screws. 2. Remove the bevel gear case (3) and front gear case (4) as a unit from the front axle case (1).
  • Page 299 ME5700, WSM FRONT AXLE Bevel Gear Case 1. Remove the external snap ring (1). 2. Tap the bevel gear case (2) and separate it from the front gear case (3). (1) External Snap Ring (3) Front Gear Case (2) Bevel Gear Case...
  • Page 300 ME5700, WSM FRONT AXLE Axle 1. Remove the bearing with a special use puller set (Code No. 07916-09032). 2. Take out the bevel gear (2). 3. Take out the collar (1). 4. Tap out the axle (3). (When reassembling) Install the oil seal (5) of axle flange (4), noting its direction as shown in the figure below.
  • Page 301 ME5700, WSM FRONT AXLE Spiral Bevel Pinion Shaft and Differential Gear Assembly 1. Take out the differential yoke shaft (9), (10) both sides. 2. Remove the oil seal (6) and internal snap ring (5). 3. Remove the collar (4). 4. Remove the spiral bevel pinion shaft (3) by the pinion shaft remover (14).

  • Page 302: Servicing

    ME5700, WSM FRONT AXLE Differential Gear 1. Remove the differential case cover mounting screws (9) and then take out the differential case cover (5), ball bearing (6) and spiral bevel gear (7) as a unit. 2. Remove the external snap ring (8), and then remove the ball bearing (6) and spiral bevel gear (7) as a unit with a puller.
  • Page 303 ME5700, WSM FRONT AXLE Clearance between Pinion Shaft and Differential Pinion 1. Measure the pinion shaft O.D. 2. Measure the differential pinion I.D. and calculate the clearance. 3. If the clearance exceeds the allowable limit, replace faulty parts. 0.064 to 0.100 mm Factory spec.
  • Page 304 ME5700, WSM FRONT AXLE Backlash and Tooth Contact between Bevel Pinion Shaft and Bevel Gear 1. Set a dial indicator (lever type) with its finger on the tooth surface. 2. Measure the backlash by fixing the bevel pinion shaft (3) and moving the bevel gear (1) by hand.
  • Page 305 ME5700, WSM FRONT AXLE Backlash between 10T Bevel Gear and 17T Bevel Gear 1. Stick a strip of fuse spots on the 17T bevel gear (1) with grease. 2. Fix the front axle case, bevel gear case and front gear case.
  • Page 306 ME5700, WSM FRONT AXLE Backlash between 9T Bevel Gear and 43T Bevel Gear 1. Stick a strip of fuse to three spots on the 43T bevel gear (1) with grease. 2. Fix the axle flange and front gear case. 3. Turn the axle.
  • Page 307 ME5700, WSM FRONT AXLE Clearance between Front Axle Case Bosses and Bracket Bushings 1. Measure the front axle case bosses O.D. with an outside micrometer. 2. Measure the bracket bushing I.D. and calculate the clearance. 3. If the clearance exceeds the allowable limit, replace the bracket bushing.
  • Page 308 STEERING KiSC issued 04, 2006 A...
  • Page 309 CONTENTS 1. STRUCTURE........................7-M1 KiSC issued 04, 2006 A...
  • Page 310 ME5700, WSM STEERING 1. STRUCTURE (1) Steering Cylinder (2) Steering Controller (3) Shuttle Valve (4) PTO Clutch Valve (5) Oil Cooler Relief Valve (6) Hydraulic Pump (7) Oil Cooler A : ROPS Type B : CABIN Type 0000002823E KiSC issued 04, 2006 A...
  • Page 311 CONTENTS 1. TROUBLESHOOTING....................... 7-S1 2. TIGHTENING TORQUES ....................7-S2 3. CHECKING, DISASSEMBLING AND SERVICING ............7-S3 [1] STEERING CONTROLLER .................... 7-S3 (1) Removing Steering Controller (ROPS Type)............7-S3 (2) Removing Steering Controller (CABIN Type) ............7-S6 [2] STEERING CYLINDER ....................7-S7 (1) Removing Steering Cylinder..................

  • Page 312: Troubleshooting

    ME5700, WSM STEERING 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Tractor Cannot Be Drive shaft in the power steering body Reassemble 8-S24 to 27 Steered improper assembled Pipe broken Replace Hard Steering Oil improper Change with specified Hydraulic pump malfunctioning...
  • Page 313 ME5700, WSM STEERING 2. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : See page G-10.) Item ft-lbs Delivery pipe and return pipe retaining nut 49.0 to 68.6...

  • Page 314: Checking, Disassembling And Servicing

    ME5700, WSM STEERING 3. CHECKING, DISASSEMBLING AND SERVICING [1] STEERING CONTROLLER (1) Removing Steering Controller (ROPS Type) Bonnet 1. Remove the bonnet (1) with miror (2). 2. Disconnect the battery's cable (3). (1) Bonnet (3) Battery Cable (2) Mirror 0000002834E...
  • Page 315 ME5700, WSM STEERING Steering Wheel, Meter Panel and Rear Bonnet 1. Remove the steering wheel (2) with a steering wheel puller (Code No. 07916-51090). 2. Remove the shuttle lever grip (1) and remove the shuttle lever guide (4). 3. Remove the main shift lever (3).
  • Page 316 ME5700, WSM STEERING Piping for Power Steering 1. Disconnect the delivery pipe (4), return pipe 1 (3), right turning delivery hose (2), left turning delivery hose (1). (When reassembling) 49.0 to 68.6 Delivery pipe and return 5.0 to 7.0 pipe retaining nut 36.2 to 50.6 ft-lbs...

  • Page 317: Removing Steering Controller (Cabin Type)

    ME5700, WSM STEERING (2) Removing Steering Controller (CABIN Type) Bonnet 1. Remove the bonnet (1). 2. Disconnect the battery's cable (2). (1) Bonnet (2) Battery's Cable 0000002836E Steering Controller 1. Disconnect the delivery pipe (2) and return pipe (1). 2. Disconnect the delivery hoses (4) and (5).

  • Page 318: Steering Cylinder

    ME5700, WSM STEERING [2] STEERING CYLINDER (1) Removing Steering Cylinder Tie-rod 1. Remove the cylinder cover (1). 2. Disconnect the power steering hoses (2), (3) from cylinder. 3. Remove the set screw (4). 4. Place a disassembly stand under the engine and support it with a jack.

  • Page 319: Hydraulic System

    HYDRAULIC SYSTEM KiSC issued 04, 2006 A...
  • Page 320 CONTENTS 1. STRUCTURE........................8-M1 2. HYDRAULIC CIRCUIT .....................8-M2 3. PTO CLUTCH VALVE .....................8-M3 4. HYDRAULIC SHUTTLE VALVE ..................8-M4 5. OIL FILTER........................8-M16 6. POWER STEERING .......................8-M17 7. LINKAGE MECHANISM ....................8-M18 [1] POSITION CONTROL ....................8-M18 [2] DRAFT CONTROL .......................8-M20 [3] MIXED CONTROL ......................8-M24 8.

  • Page 321: Structure

    ME5700, WSM HYDRAULIC SYSTEM 1. STRUCTURE (1) Hydraulic Cylinder Body (4) Power Steering Controller (7) Hydraulic Pump for Power (9) PTO Control Valve (2) Auxiliary Control Valve (5) Oil Cooler Steering and Shuttle Valve (10) Oil Filter Cartridge (3) Shuttle Valve (Forward,...

  • Page 322: Hydraulic Circuit

    ME5700, WSM HYDRAULIC SYSTEM 2. HYDRAULIC CIRCUIT (1) Oil Tank (Transmission (4) Hydraulic Pump (8) Hydraulic Cylinder (3 Point (11) Oil Cooler Case) (5) Auxiliary Control Holder Linkage) (12) PTO Clutch Valve (2) Hydraulic Oil Filter (6) Auxiliary Control Valve...

  • Page 323: Pto Clutch Valve

    ME5700, WSM HYDRAULIC SYSTEM 3. PTO CLUTCH VALVE PTO clutch valve is composed of the following parts. (A) Main Relief Valve PTO clutch inner pressure is kept in approx. 2.45 to 2.55 MPa (25 to 26 , 355 to 370 psi) by the main relief valve.

  • Page 324: Hydraulic Shuttle Valve

    ME5700, WSM HYDRAULIC SYSTEM 4. HYDRAULIC SHUTTLE VALVE Shuttle Lever at Neutral Position (CABIN Type) 0000001704E KiSC issued 04, 2006 A 8-M4...
  • Page 325 ME5700, WSM HYDRAULIC SYSTEM (1) Modulating Valve (5) Shuttle Valve Case 1 A : Check Port (Modulation) R : To Clutch Body (Reverse) (2) Proportionally Reducing (6) Shuttle Valve Case 2 B : Check Port (Forward) T1 : To Transmission Case...
  • Page 326 ME5700, WSM HYDRAULIC SYSTEM Shuttle Lever at Neutral Position (ROPS Type) 0000001706E KiSC issued 04, 2006 A 8-M6...
  • Page 327 ME5700, WSM HYDRAULIC SYSTEM (1) Modulating Valve (5) Shuttle Valve Case 1 A : Check Port (Modulation) R : To Clutch Body (Reverse) (2) Proportionally Reducing (6) Shuttle Valve Case 2 B : Check Port (Forward) T1 : To Transmission Case...
  • Page 328 ME5700, WSM HYDRAULIC SYSTEM When Shuttle Lever is Shifting Neutral to Forward or Reverse Position (Clutch Pedal is Released) 0000001708E KiSC issued 04, 2006 A 8-M8...
  • Page 329 ME5700, WSM HYDRAULIC SYSTEM (1) Modulating Valve (5) Shuttle Valve Case 1 A : Check Port (Modulation) R : To Clutch Body (Reverse) (2) Proportionally Reducing (6) Shuttle Valve Case 2 B : Check Port (Forward) T1 : To Transmission Case...
  • Page 330 ME5700, WSM HYDRAULIC SYSTEM Shuttle Lever at Forward Position (Clutch Pedal is Released) 0000001710E KiSC issued 04, 2006 A 8-M10...
  • Page 331 ME5700, WSM HYDRAULIC SYSTEM (1) Modulating Valve (5) Shuttle Valve Case 1 A : Check Port (Modulation) R : To Clutch Body (Reverse) (2) Proportionally Reducing (6) Shuttle Valve Case 2 B : Check Port (Forward) T1 : To Transmission Case...
  • Page 332 ME5700, WSM HYDRAULIC SYSTEM Shuttle Lever at Reverse Position (Clutch Pedal is Released) 0000001712E KiSC issued 04, 2006 A 8-M12...
  • Page 333 ME5700, WSM HYDRAULIC SYSTEM (1) Modulating Valve (5) Shuttle Valve Case 1 A : Check Port (Modulation) R : To Clutch Body (Reverse) (2) Proportionally Reducing (6) Shuttle Valve Case 2 B : Check Port (Forward) T1 : To Transmission Case...
  • Page 334 ME5700, WSM HYDRAULIC SYSTEM When Clutch Pedal is Depressed (with Shuttle Lever at Forward or Reverse Position) X : Connect to Shuttle Lever Y : Connect to Clutch Pedal 0000001714E KiSC issued 04, 2006 A 8-M14...
  • Page 335 ME5700, WSM HYDRAULIC SYSTEM (1) Modulating Valve A : Check Port (Modulation) F : To Clutch Body (Forward) a : Part a (2) Spool 1 B : Check Port (Forward) R : To Clutch Body (Reverse) b : Part b...

  • Page 336: Oil Filter

    ME5700, WSM HYDRAULIC SYSTEM 5. OIL FILTER Two oil filter are located in parallel at the pump suction line. A permanent magnet, servicing as a magnet filter, is inserted in the paper type element of each cartridge, which ensures a filtration degree of b60 or BETA60 = 2.5 (MIN)*...

  • Page 337: Power Steering

    ME5700, WSM HYDRAULIC SYSTEM 6. POWER STEERING Hydraulic Oil Flow When the engine starts, the hydraulic pump (4) of the power steering system pressure-feeds the oil drawn from the transmission case through the suction pipe. The oil which has entered steering controller (2) is directed to control valve (5).

  • Page 338: Linkage Mechanism

    ME5700, WSM HYDRAULIC SYSTEM 7. LINKAGE MECHANISM [1] POSITION CONTROL Position control is a linkage mechanism to raise or lower the implement attached to the tractor in proportion to the movement of the position control lever. The implement can be positioned at any height by moving the position control lever. Fine position adjustment is also easy.
  • Page 339 ME5700, WSM HYDRAULIC SYSTEM Down (1) Position Control Lever (2) Lever Shaft (3) Fulcrum 1 (4) Cam Link (5) Link (6) Spool Drive Lever (7) Spool (8) Fulcrum 2 When the position control lever (1) is moved to the "DOWN" position, the lever shaft (2) rotates and pull up the cam link (4) between the fulcrum 1 (3) and link (5).

  • Page 340: Draft Control

    ME5700, WSM HYDRAULIC SYSTEM [2] DRAFT CONTROL Draft control is a system which maintain a constant traction load, and is suited for the work which needs heavy traction load such as plowing. The implement is automatically raised when its traction load is increased, and lowers when the traction load is decreased.
  • Page 341 ME5700, WSM HYDRAULIC SYSTEM Draft Control Operation (1) Draft Control Lever (5) Top Link Holder (9) Spool Drive Lever (12) Spool (2) Lever Shaft (6) Torsion Bar (10) Link 1 (13) Fixed Arm (3) Feedback Shaft (7) Top Link (11) Spring...
  • Page 342 ME5700, WSM HYDRAULIC SYSTEM (3) Mower Rear Link RH (4) Lift Link RH (6) Lift Link Rear RH (8) Mower Lift Arm (9) Link Adjusting Nut (10) Bushing (12) Rear Lift Link Shaft When the traction load increases, the torsion bar (6) is twisted, and its displacement is transmitted to the feedback shaft (3) via the feedback rod (4).
  • Page 343 ME5700, WSM HYDRAULIC SYSTEM (3) Feedback Shaft (4) Feedback Rod (6) Torsion Bar (9) Spool Drive Lever (11) Spring (12) Spool When the traction load decreases, the torsion bar (6) is restored and its displacement is transmitted to the feedback shaft (3) via the feedback rod (4).

  • Page 344: Mixed Control

    ME5700, WSM HYDRAULIC SYSTEM [3] MIXED CONTROL Mixed control is a system combining position control with draft control. When traction load increases, the draft control functions to raise the lift arms (implement). When traction load reduces, the lift arms (implement) lower to...

  • Page 345: Oil Cooler Relief Valve

    ME5700, WSM HYDRAULIC SYSTEM 8. OIL COOLER RELIEF VALVE The oil cooler relief valve is located on the right hand side of the clutch housing case. This valve uses a direct acting relief valve, which is suitable for low volume and less frequent operations.
  • Page 346 CONTENTS 1. TROUBLESHOOTING....................... 8-S1 2. SERVICING SPECIFICATIONS ..................8-S3 3. TIGHTENING TORQUES ....................8-S6 4. CHECKING, DISASSEMBLING AND SERVICING ............8-S7 [1] CHECKING AND ADJUSTING ..................8-S7 (1) PTO Clutch Valve ....................8-S7 (2) Shuttle Valve ......................8-S9 (3) Shuttle Lever (CABIN Type) .................. 8-S10 (4) Steering Controller....................

  • Page 347: Troubleshooting

    ME5700, WSM HYDRAULIC SYSTEM 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page Implement Does Not Control linkage improperly assembled or Repair or replace 8-S19 to S22 Rises (Not Noise) damaged Control valve malfunctioning (unload valve, Repair or replace 8-S35, S36...
  • Page 348 ME5700, WSM HYDRAULIC SYSTEM Reference Symptom Probable Cause Solution Page Draft Control Draft control linkage improperly adjusted Adjust 8-S19 to S22 Malfunctioning Torsion bar weak or broken Replace 0000002855E KiSC issued 04, 2006 A 8-S2...

  • Page 349: Servicing Specifications

    ME5700, WSM HYDRAULIC SYSTEM 2. SERVICING SPECIFICATIONS PTO CLUTCH VALVE Item Factory Specification Allowable Limit PTO Clutch Valve Relief Valve Setting 2.45 to 2.55 MPa Pressure 25 to 26 355 to 370 psi 0000002856E STEERING CONTROLLER Item Factory Specification Allowable Limit...
  • Page 350 ME5700, WSM HYDRAULIC SYSTEM CONTROL LINKAGE Item Factory Specification Allowable Limit Position Control Feedback Rod Length 125 mm 4.92 in. Floating Position for Position Control ROPS Type 10 to 50 mm (Distance) 0.39 to 1.97 in. CABIN Type 20 to 40 mm (Distance) 0.79 to 1.57 in.
  • Page 351 ME5700, WSM HYDRAULIC SYSTEM POSITION CONTROL VALVE Item Factory Specification Allowable Limit Plate and Spool Joint Distance 62.0 to 63.0 mm 2.44 to 2.48 in. 0000002862E OIL COOLER RELIEF VALVE Item Factory Specification Allowable Limit Relief Valve Setting Pressure 4.4 to 4.9 MPa 45.0 to 50.0...
  • Page 352 ME5700, WSM HYDRAULIC SYSTEM 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : See page G-10.) Item ft-lbs Gerator assembly mounting screw 25.5 to 28.4 2.6 to 2.9...

  • Page 353: Checking, Disassembling And Servicing

    ME5700, WSM HYDRAULIC SYSTEM 4. CHECKING, DISASSEMBLING AND SERVICING [1] CHECKING AND ADJUSTING (1) PTO Clutch Valve Relief Valve Setting Pressure 1. Start the engine and warm up the transmission fluid, and then stop the engine. 2. Remove the plug (4) (PT 1/8) on the PTO valve spool (5).
  • Page 354 ME5700, WSM HYDRAULIC SYSTEM PTO Clutch Lever Movement 1. Stop the engine and remove the key. 2. Check the PTO clutch lever (1) on the "ON" and "OFF" position of PTO clutch lever guide. 3. If adjustment is needed, loosen the lock nuts (3) and adjust the clutch control cable (2) length.

  • Page 355: Shuttle Valve

    ME5700, WSM HYDRAULIC SYSTEM (2) Shuttle Valve Checking of Shuttle Valve System Pressure 1. Remove the floor mat, housing cover, seat, fenders (RH and LH) and center frame. 2. Remove the each plugs of F, R, M and set the adaptor D (1), threaded joint (4), cable (3), and pressure gauge (Code No.

  • Page 356: Shuttle Lever (Cabin Type)

    ME5700, WSM HYDRAULIC SYSTEM (3) Shuttle Lever (CABIN Type) (A) Adjusting Shuttle Valve Neutral Position and Lever Guide Neutral Position Park the machine on a firm, flat and level surface, set the parking brake and place the gear shift in neutral.
  • Page 357 ME5700, WSM HYDRAULIC SYSTEM Shuttle Lever Free Play 1. Place the shuttle lever to the neutral position. 2. Lift the shuttle lever (1) then move it back and forth, and confirm the free play "D" of the shuttle lever (1) at neutral position.
  • Page 358 ME5700, WSM HYDRAULIC SYSTEM Shuttle Lever Neutral Position 1. Shift the free play "D" toward the forward direction and slowly lower the shuttle lever as shown in the figure. And visually inspect the clearance "X". 2. Shift the free play "D" toward the rear direction and slowly lower the shuttle lever (1) as shown in the figure.
  • Page 359 ME5700, WSM HYDRAULIC SYSTEM Engine Start Condition Before starting the engine, make sure the speed range lever and the gear shift lever are both at the neutral position. Place the PTO lever to the OFF position. Apply the parking brake.

  • Page 360: Steering Controller

    ME5700, WSM HYDRAULIC SYSTEM (4) Steering Controller Relief Valve Setting Pressure 1. Disconnect the delivery hose 1 (or 2) from steering cylinder and set a pressure gauge (3) (Code No. 07916-50321) between them using power steering adaptor (1) (Code No.

  • Page 361: Power Steering Hydraulic Pump

    ME5700, WSM HYDRAULIC SYSTEM (5) Power Steering Hydraulic Pump Hydraulic Flow Test When using a flowmeter other than KUBOTA specified flowmeter (Code No. 07916-52792), be sure to use the instructions with the flowmeter. Do not close the flowmter loading valve completely, before testing, because it has no relief valve.
  • Page 362 ME5700, WSM HYDRAULIC SYSTEM Hydraulic Flow Test (Continued) Condition Engine speed ..... 2800 (rpm) Rated pressure ..16.8 MPa (170 , 2418 psi) Oil temperature ..45 to 55 113 to 131 22.4 L/min. Hydraulic pump delivery Factory spec. 5.92 U.S.gals/min.

  • Page 363: Three Point System Hydraulic Pump

    HYDRAULIC SYSTEM (6) Three Point System Hydraulic Pump Hydraulic Flow Test When using a flowmeter other than KUBOTA specified flowmeter (Code No. 07916-52792), be sure to use the instructions with the flowmeter. Do not close the flowmter loading valve completely, before testing, because it has no relief valve.
  • Page 364 ME5700, WSM HYDRAULIC SYSTEM Hydraulic Flow Test (Continued) Condition Engine speed ..... Approx. 2800 (rpm) Rated pressure ..19.1 MPa (195 , 2773 psi) Oil temperature ..45 to 55 113 to 131 Above 40.3 L/min. Hydraulic pump delivery Factory spec.

  • Page 365: Position Control And Draft Control Linkage

    ME5700, WSM HYDRAULIC SYSTEM (7) Position Control and Draft Control Linkage Adjusting the Uppermost Position 1. Attach the weight (1) of 490 N (50 kgf, 110 lbs) to the end of lower link (2). 2. Set the position control lever (3) and draft control lever (4) to the lowest position.
  • Page 366 ME5700, WSM HYDRAULIC SYSTEM Checking Floating Position 1. Attach the weight of 490 N (50 kgf, 110 lbs) to the end of lower link. 2. Set the position control lever (1) and draft control lever (2) to the lowest position, and set the engine speed at the maximum.
  • Page 367 ME5700, WSM HYDRAULIC SYSTEM Adjusting Draft Control Rod 1. Attach a weight of approx. 490 N (50 kgf, 110 lbs) to the end of the lower link. 2. Set the position control lever (1) to the lowest position 3. Start the engine and set the speed at 1000 (rpm).
  • Page 368 ME5700, WSM HYDRAULIC SYSTEM Checking Floating Position 1. Attach the weight (5) of 490 N (50 kgf, 110 lbs) to the end of lower link (6). 2. Set the position control lever (1) and draft control lever (2) to the lowest position.

  • Page 369: Relief Valve For Three Point System

    ME5700, WSM HYDRAULIC SYSTEM (8) Relief Valve for Three point System Relief Valve Setting Pressure Test Using Pressure Tester (Coupler) 1. Set the Relief Valve Set Pressure Adaptor G (Code No. 07916-52751) to the half male of the quick coupler and then set a pressure gauge (Code No.

  • Page 370: Disassembling And Assembling

    ME5700, WSM HYDRAULIC SYSTEM [2] DISASSEMBLING AND ASSEMBLING (1) PTO Valve For the removing procedure of PTO valve, refer to page 2-S7. 0000002887E Disassembling PTO Clutch Valve 1. Remove the external snap ring (1), lever (2) and oil seal (3).
  • Page 371 ME5700, WSM HYDRAULIC SYSTEM Removing Gerotor 1. Secure the housing (3) in a vise and remove seven gerotor mounting screws and gerotor assembly (1). 2. Remove the distributor plate (11) and drive shaft (2). 3. Remove the rotor (9), O-ring (5) between the distributor plate and stator (6).
  • Page 372 ME5700, WSM HYDRAULIC SYSTEM Grand Seal, Needle Bearing, Sleeve and Spool 1. Remove the retaining ring (1) with a screw driver. 2. Hold the control valve unit vertically and spool and sleeve align the cross pin parallels to flat side of housing (flow priority valve mounting side), the cross pin is visible through open end of spool.

  • Page 373: Steering Cylinder

    ME5700, WSM HYDRAULIC SYSTEM Sleeve and Spool 1. Draw out the dowel pin (1). 2. Draw out the spool (3) from the sleeve (2). 3. Push out the centering spring (4). As the clearance between the sleeve (2) and spool (3) is very narrow, draw out the spool by turning it slowly with due care.

  • Page 374: Hydraulic Pump (Power Steering And Three Point System)

    ME5700, WSM HYDRAULIC SYSTEM (4) Hydraulic Pump (Power Steering and Three point System) The hydraulic pump is precision machined and assembled : if disassembled once, it may be unable to maintain its original performance. Therefore, when the hydraulic pump fails, replacement should be carried out with the hydraulic pump assembly except when emergency repair is unavoidable.
  • Page 375 ME5700, WSM HYDRAULIC SYSTEM Separating Hydraulic Pump 1. Put the parting marks (1), (2), (3), (4) on the flange (5), front housing (6), center plate (7), housing (8) and housing cover (9). 2. Unscrew the housing cover mounting nuts and separate the three point system hydraulic pump (11) from the power steering pump (10).
  • Page 376 ME5700, WSM HYDRAULIC SYSTEM Disassembling Three Point System Hydraulic Pump 1. Remove the flange (3) and center plate (1). 2. Remove the backup element (4) and seal element (5). 3. Remove the bushings (6) and (9). 4. Remove the drive gear (7) and driven gear (8).

  • Page 377: Relief Valve

    ME5700, WSM HYDRAULIC SYSTEM (5) Relief Valve Disassembling Relief Valve 1. Remove the relief valve assembly from the hydraulic block. 2. Remove the lock nut (9). 3. Remove the adjuster (8) and draw out the spring (7) and the pilot valve (6).
  • Page 378 ME5700, WSM HYDRAULIC SYSTEM ROPS, Seat and Center Frame 1. Remove the seat (3). 2. Remove the draft and position control lever grips (9). 3. Remove the auxiliary speed change lever plate (5), DT shift lever grip (4) and 3-point hitch lowering speed control grip (6).

  • Page 379: Hydraulic Cylinder Assembly (Cabin Type)

    ME5700, WSM HYDRAULIC SYSTEM (7) Hydraulic Cylinder Assembly (CABIN Type) Lift Rods and Lower Links 1. Remove the lift rods (1). 2. Remove the lower links (2) with stabilizer. 3. Remove the drawbar (3). 4. Remove the rear wheels (4).
  • Page 380 ME5700, WSM HYDRAULIC SYSTEM Hydraulic Cylinder Assembly 1. Disconnect the delivery pipe (2). 2. Disconnect the wireharness (1) and auxiliary control valve cable (4). 3. Disconnect the position control rod (6), draft control rod (5) and additional control lever (7).

  • Page 381: Position Control Valve

    ME5700, WSM HYDRAULIC SYSTEM (8) Position Control Valve Removing Control Valve 1. Remove the return pipe. 2. Remove the control valve mounting screws (2). 3. Remove the control valve (1). Do not loosen adjusting section at the end of the spool unless necessary.
  • Page 382 ME5700, WSM HYDRAULIC SYSTEM Plug and Unload Valve 1. Secure the control valve with a vise. 2. Remove the seat plug (6) for poppet valve. 3. Remove the plug (4) for unload valve (1). 4. Remove the plate (3) and return spring (5).

  • Page 383: Disassembling Cylinder Safety Valve

    ME5700, WSM HYDRAULIC SYSTEM (9) Disassembling Cylinder Safety Valve Cylinder Safety Valve 1. Remove the cylinder safety valve assembly (1). 2. Secure the cylinder safety valve assembly in a vise. 3. Loosen the lock nut (7), and remove the adjust screw (2).

  • Page 384: Disassembling Hydraulic Cylinder Assembly

    ME5700, WSM HYDRAULIC SYSTEM (10)Disassembling Hydraulic Cylinder Assembly Hydraulic Cylinder Cover and Hydraulic Piston 1. Remove the hydraulic cylinder cover (1). 2. Push out the hydraulic piston (5) from the hydraulic cylinder. (When reassembling) Install the hydraulic piston, noting O-ring (6) and backup ring (7).
  • Page 385 ME5700, WSM HYDRAULIC SYSTEM Lift Arm and Hydraulic Arm Shaft 1. Disconnect the feedback rod from the lift arm L.H. (3). 2. Remove the wire and unscrew the setting screw (2). 3. Remove the external snap ring (4). 4. Draw out the hydraulic arm shaft (1) and lift arm R.H. (5) as a unit.

  • Page 386: Servicing

    ME5700, WSM HYDRAULIC SYSTEM Lowering Speed Adjusting Valve 1. Remove the internal snap ring (1) and adjusting screw (3). 2. Remove the internal snap ring (7), and draw out the poppet valve (6). (1) Internal Snap Ring (5) Hydraulic Cylinder Cover...

  • Page 387: Oil Cooler Relief Valve

    ME5700, WSM HYDRAULIC SYSTEM (2) Oil Cooler Relief Valve Operating Pressure of Oil Cooler Relief Valve 1. Attach the oil cooler relief valve to an injection nozzle tester with a oil cooler relief valve setting adaptor. (See page G-58.) 2. Measure the operating pressure of the oil cooler relief valve.

  • Page 388: Cylinder Safety Valve

    ME5700, WSM HYDRAULIC SYSTEM Bushing Length 1. Measure the bushing length with an outside micrometer. 2. If the length is less than the allowable limit, replace it. 18.965 mm Bushing length Allowable limit 0.74665 in. 0000001220E (4) Cylinder Safety Valve Operating Pressure of Cylinder Safety Valve 1.
  • Page 389 ME5700, WSM HYDRAULIC SYSTEM Clearance between Hydraulic Arm Shaft and Bushing 1. Measure the hydraulic arm shaft O.D. with an outside micrometer. 2. Measure the bushing I.D. with a cylinder gauge, and calculate the clearance. 3. If the clearance exceeds the allowable limit, replace the bushing.

  • Page 390: Electrical System

    ELECTRICAL SYSTEM KiSC issued 04, 2006 A...
  • Page 391 CONTENTS 1. WIRING DIAGRAM......................9-M1 [1] ROPS TYPE ........................9-M1 [2] CABIN TYPE........................9-M2 (1) Engine Harness .......................9-M2 (2) Body Harness ......................9-M3 (3) Cabin Harness......................9-M4 [3] COLOR OF WIRING ......................9-M5 2. LIGHTING SYSTEM ......................9-M6 [1] HAZARD / Flasher UNIT ....................9-M6 [2] WORKING LIGHT SWITCH (CABIN TYPE) ..............9-M6 [3] ROOM LAMP (CABIN TYPE) ..................9-M7 3.

  • Page 392: Wiring Diagram

    ME5700, WSM ELECTRICAL SYSTEM 1. WIRING DIAGRAM [1] ROPS TYPE Hazard / Flasher Unit Name Name 0.5-BR/Y Glow Relay PTO Relay Air Cleaner 0.85-BR Hi Beam Key Stop Relay Starter Relay Trailer IND 0.5-B Turn Signal RH (Output) 0.5-Lg/R 0.85-R/W...

  • Page 393: Cabin Type

    ME5700, WSM ELECTRICAL SYSTEM [2] CABIN TYPE (1) Engine Harness Key Stop Solenoid Air Cleaner Sensor Connector for Body Harness Horn 0.85-B 0.85-Br 0.85-Or 0.85-B 0.85-Br 0.85-Or Head Light 30 A 30 A Battery Starter Starter Relay Diode Slow Blow Fuse...

  • Page 394: Body Harness

    ME5700, WSM ELECTRICAL SYSTEM (2) Body Harness Working Ciger Lighter Rear Combination Light Relay PTO Relay Lamp Timer Relay Hazard / Flasher Unit Name Parking Switch PTO Switch Brake Turning Tail Loader Trailer IND Front Rear Plug Ground Turn Signal RH (Output)

  • Page 395: Cabin Harness

    ME5700, WSM ELECTRICAL SYSTEM (3) Cabin Harness Room Lamp Switch Front Combination Front Combination A/C Compressor Blower High Working Light Working Light Lamp LH Lamp RH Main Relay Relay Relay DOOR LH (Front) RH (Front) Position Turning Position Turning DOOR...

  • Page 396: Color Of Wiring

    ME5700, WSM ELECTRICAL SYSTEM [3] COLOR OF WIRING B ... Black B/Y ..Black / Yellow Lg/Y ..Light Green / Yellow G ..Green Br/B ..Brown / Black Or/W ..Orange / White L ... Blue Br/Y ..Brown / Yellow R/B ....

  • Page 397: Lighting System

    ME5700, WSM ELECTRICAL SYSTEM 2. LIGHTING SYSTEM [1] HAZARD / Flasher UNIT Hazard / Flasher Unit This hazard / flasher unit is a summary to one as for past hazard / flasher unit, hazard relay, and charge relay. (1) Battery...

  • Page 398: Room Lamp (Cabin Type)

    ME5700, WSM ELECTRICAL SYSTEM [3] ROOM LAMP (CABIN TYPE) (1) Room Lamp Switch (2) Room Lamp (3) Door Switch RH (4) Door Switch LH (a) From Battery (b) To Radio 0000001826E Room Lamp Switch This switch is slide type switch.

  • Page 399: Pto Clutch

    ME5700, WSM ELECTRICAL SYSTEM 3. EASY CHECKER [1] INDICATION ITEMS The operator must check the conditions of the tractor before and during operation. To facilitate checking, the Easy Checker-combination of lamps on the panel board is provided. 0000001829E (1) ROPS Type 1.

  • Page 400: Trailer Socket

    ME5700, WSM ELECTRICAL SYSTEM 4. TRAILER SOCKET The trailer socket is provided to take out the electrical power from tractor to trailer or implement. The function of each terminal is shown below. Terminal Function Color of wire harness Turn Signal Light (LH)

  • Page 401: Others

    ME5700, WSM ELECTRICAL SYSTEM 5. OTHERS Refer to Workshop Manual for Diesel Engine Mechanism (Code No. 97897-01872) and Tractor Mechanism (Code No. 97897-18200) as following terms. [1] STARTING SYSTEM (1) Main Switch : Refer to Workshop Manual for Tractor Mechanism.
  • Page 402 CONTENTS 1. TROUBLESHOOTING....................... 9-S1 2. SERVICING SPECIFICATIONS ..................9-S6 3. TIGHTENING TORQUES ....................9-S7 4. CHECKING, DISASSEMBLING AND SERVICING ............9-S8 [1] BATTERY ........................9-S8 (1) Checking........................9-S8 (2) Servicing........................ 9-S10 [2] STARTING SYSTEM ....................9-S11 (1) Checking........................ 9-S11 (2) Disassembling and Assembling................9-S22 (3) Servicing........................
  • Page 403 ME5700, WSM ELECTRICAL SYSTEM 1. TROUBLESHOOTING Reference Symptom Probable Cause Solution Page All Electrical Battery discharged or defective Recharge or replace 9-S10 Equipments Do Not Battery positive cable disconnected Repair or replace 9-S8 Operate improperly connected Battery negative cable disconnected...
  • Page 404 ME5700, WSM ELECTRICAL SYSTEM CHARGING SYSTEM Reference Symptom Probable Cause Solution Page Charging Lamp Does Fuse blown Replace G-35 ,36 Not Light When Main Wiring harness disconnected or improperly Repair or replace Switch Is Turned ON connected (between main switch AC terminal...
  • Page 405 ME5700, WSM ELECTRICAL SYSTEM LIGHTING SYSTEM (Continued) Reference Symptom Probable Cause Solution Page Hazard Light Does Not Fuse blown (10 A) Replace G-35, 36 Light Bulb blown Replace G-37 Wiring harness disconnected or improperly Repair or replace connected (between main switch B terminal...
  • Page 406 ME5700, WSM ELECTRICAL SYSTEM EASY CHECKER Reference Symptom Probable Cause Solution Page Parking Brake Bulb blown Replace G-37 Indicator Lamp Does Parking brake switch defective Replace 9-S38 Not Light When Main Switch Is Turned ON and Pull Parking Brake Lever...
  • Page 407 ME5700, WSM ELECTRICAL SYSTEM GAUGES Reference Symptom Probable Cause Solution Page Fuel Gauge Does Not Fuel gauge defective Replace Function Fuel level sensor (tank unit) defective Replace 9-S44, S45 Wiring harness disconnected or improperly Repair or replace connected (between panel board and fuel level...

  • Page 408: Servicing Specifications

    ME5700, WSM ELECTRICAL SYSTEM 2. SERVICING SPECIFICATIONS STARTER MOTOR Item Factory Specification Allowable Limit Commutator O.D. 30.0 mm 29.0 mm 1.181 in. 1.142 in. Mica Undercut 0.50 to 0.80 mm 0.2 mm 0.0197 to 0.0315 in. 0.0079 in. Brush Length 14.0 mm...

  • Page 409: Tightening Torques

    ME5700, WSM ELECTRICAL SYSTEM 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : See page G-10.) Item ft-lbs Pulley nut (Alternator) 58.3 to 78.9 5.95 to 8.05...

  • Page 410: Checking, Disassembling And Servicing

    ME5700, WSM ELECTRICAL SYSTEM 4. CHECKING, DISASSEMBLING AND SERVICING To avoid accidental short circuit, be sure to attach the positive cable to the positive terminal before the negative cable is attached to the negative terminal. Never remove the battery cap while the engine is running.
  • Page 411 ME5700, WSM ELECTRICAL SYSTEM Battery Specific Gravity 1. Check the specific gravity of the electrolyte in each cell with a hydrometer. 2. When the electrolyte temperature differs from that at which the hydrometer was calibrated, correct the specific gravity reading following the formula mentioned in (Reference).

  • Page 412: Servicing

    ME5700, WSM ELECTRICAL SYSTEM (2) Servicing Recharging When the battery is being activated, hydrogen and oxygen gases in the battery are extremely explosive. Keep open sparks and flames away from the battery at all times, especially when charging the battery.

  • Page 413: Starting System

    ME5700, WSM ELECTRICAL SYSTEM Directions for Storage 1. When shutting down the tractor for long periods of time, remove the battery from the tractor, adjust the electrolyte to the proper level, and after fully charging, store the battery in a well ventilated placed where it is not exposed to direct sunlight.
  • Page 414 ME5700, WSM ELECTRICAL SYSTEM Main Switch at ON Position 1. Turn the main switch ON position. 2. Measure the resistance with an ohmmeter across the B terminal and the M terminal. 3. If 0 ohm is not indicated, renew the main switch.
  • Page 415 ME5700, WSM ELECTRICAL SYSTEM Main Switch at ON Position 1. Turn the main switch ON position. 2. Measure the resistance with an ohmmeter across the AM terminal and the ACC terminal and AM terminal and M terminal. 3. If 0 ohm is not indicated, renew the main switch.
  • Page 416 ME5700, WSM ELECTRICAL SYSTEM (C) Starter Relay Connector Voltage 1. Disconnect the starter relay (1) connector 4B. 2. Shift the shuttle lever in neutral position. 3. (ROPS Type) Measure the voltage across 3 terminal and 4 terminal (wire harness side).
  • Page 417 ME5700, WSM ELECTRICAL SYSTEM (D) PTO Relay Connector Voltage 1. Disconnect the PTO relay connector 5A (ROPS Type), 5X (CABIN Type). 2. Shift the PTO clutch lever to OFF position and turn the main switch to ON position. 3. (ROPS Type) Measure the voltage across 1 terminal and 2 terminal (wire harness type).
  • Page 418 ME5700, WSM ELECTRICAL SYSTEM PTO Relay Test (ROPS Type) 1. Apply battery voltage across 1 and 2 terminals, and check for continuity across 3 and 5 terminals. (CABIN Type) 1. Apply battery voltage across 2 and 4 terminals, and check for continuity across 1 and 3 terminals.
  • Page 419 ME5700, WSM ELECTRICAL SYSTEM (E) Glow Relay Connector Voltage 1. Turn the main switch OFF position. 2. Disconnect the 1P connectors and connector 2A from glow relay (1). 3. Measure the voltage with a voltmeter across the 1P connector R terminal (Positive) and chassis (Negative).
  • Page 420 ME5700, WSM ELECTRICAL SYSTEM (F) Glow Plug Glow Plug 1. Disconnect the leads from the glow plugs. 2. Measure the resistance with an ohmmeter across the glow plug terminal and chassis. 3. If 0 ohm is indicated, the screw at the tip of the glow plug and the housing are short-circuited.
  • Page 421 ME5700, WSM ELECTRICAL SYSTEM (G) Safety Switch and PTO Clutch Safety Switch PTO Clutch Safety Switch 1. Remove the PTO clutch safety switch leads. 2. Connect the circuit tester to the PTO clutch safety switch leads. 3. Measure the resistance between leads.
  • Page 422 ME5700, WSM ELECTRICAL SYSTEM (H) Shuttle Valve Safety Switch Shuttle Neutral Switch 1. Remove the safety switch (shuttle neutral switch) leads. 2. Connect the circuit tester to the safety switch (shuttle neutral switch) leads. 3. Measure the resistance between leads.
  • Page 423 ME5700, WSM ELECTRICAL SYSTEM (I) Starter Starter Motor B Terminal Voltage 1. Measure the voltage with a voltmeter across the B terminal and chassis. 2. If the voltage differs from the battery voltage, the battery's positive cable or the battery negative cable is faulty.

  • Page 424: Disassembling And Assembling

    ME5700, WSM ELECTRICAL SYSTEM (2) Disassembling and Assembling (A) Starter Disassembling Motor 1. Disconnect the connecting lead (9) from the magnet switch (8). 2. Remove the screws (6), and then separate the end frame (4), yoke (2) and armature (1).

  • Page 425: Servicing

    ME5700, WSM ELECTRICAL SYSTEM (3) Servicing (A) Starter Overrunning Clutch 1. Inspect the pinion for wear or damage. 2. If there is any defect, replace the overrunning clutch assembly. 3. Check that the pinion turns freely and smoothly in the overrunning direction and does not slip in the cranking direction.
  • Page 426 ME5700, WSM ELECTRICAL SYSTEM Brush Wear 1. If the contact face of the brush is dirty or dusty, clean it with emery paper. 2. Measure the brush length (A) with vernier calipers. 3. If the length is less than the allowable limit, replace the yoke assembly and brush holder.
  • Page 427 ME5700, WSM ELECTRICAL SYSTEM Field Coil 1. Check the continuity across the lead (1) and brush (2) with an ohmmeter. 2. If it does not conduct, replace the yoke assembly. 3. Check the continuity across the brush (2) and yoke (3) with an ohmmeter.

  • Page 428: Stopping System

    ME5700, WSM ELECTRICAL SYSTEM [3] STOPPING SYSTEM (1) Checking (A) Timer Relay Connector Voltage 1. Disconnect the connector 4A from the timer relay (1) after turning the main switch OFF position. 2. Measure the voltage with a voltmeter across the connector 3 terminal and chassis.
  • Page 429 ME5700, WSM ELECTRICAL SYSTEM Test of Timer Relay 1. Remove the timer relay. 2. Connect jumper leads across the battery positive terminal and the timer relay 3 terminal, and across the battery positive terminal and the timer relay 4 terminal.

  • Page 430: Charging System

    ME5700, WSM ELECTRICAL SYSTEM [4] CHARGING SYSTEM (1) Checking (A) Alternator Alternator 1. Disconnect the 2P connector (3) from alternator after turning the main switch OFF. 2. Perform the following checkings. (1) B Terminal (3) 2P Connector (2) Alternator 0000001759E Connector Voltage 1.

  • Page 431: Disassembling And Assembling

    ME5700, WSM ELECTRICAL SYSTEM No-Load Test 1. Connect the 2P connector (6) to previous positions of the alternator after turning the main switch OFF. 2. Connect the jumper lead (3) between IG terminal (4) and B terminal (2). 3. Start the engine and then set at idling speed.
  • Page 432 ME5700, WSM ELECTRICAL SYSTEM Brush Holder 1. Unscrew the two screws holding the brush holder, and remove the brush holder (1). (1) Brush Holder 0000002966E IC Regulator 1. Unscrew the three screws holding the IC regulator, and remove the IC regulator (1).
  • Page 433 ME5700, WSM ELECTRICAL SYSTEM Rotor 1. Press out the rotor (1) from drive end frame (3). Take special care not to drop the rotor and damage the slip ring or fan, etc.. (1) Rotor (3) Drive End Frame (2) Block...

  • Page 434: Servicing

    ME5700, WSM ELECTRICAL SYSTEM (3) Servicing (A) Alternator Bearing 1. Check the bearing for smooth rotation. 2. If it does not rotate smoothly, replace it. 0000001178E Stator 1. Measure the resistance across each lead of the stator coil with an ohmmeter.
  • Page 435 ME5700, WSM ELECTRICAL SYSTEM Brush Wear 1. Measure the brush length with vernier calipers. 2. If the measurement is less than allowable limit, replace it. 3. Make sure that the brush moves smoothly. 4. If the brush is defective, replace it.

  • Page 436: Lighting System

    ME5700, WSM ELECTRICAL SYSTEM [5] LIGHTING SYSTEM (1) Checking (A) Combination Switch Combination Switch 1. Remove the switch board, and disconnect the combination switch connector after turning the main switch off. 2. Perform the following checkings. (1) Light Switch (3) Horn Switch...
  • Page 437 ME5700, WSM ELECTRICAL SYSTEM 4) Light Switch Continuity when Setting Switch at LOW- BEAM Position 1. Measure the resistance with an ohmmeter across the B1 terminal to the T terminal and the B1 terminal to the 2 terminal. 2. If 0 ohm is not indicated, the head light switch is faulty.
  • Page 438 ME5700, WSM ELECTRICAL SYSTEM 8) Horn Switch Continuity 1. Measure the resistance with an ohmmeter across the B2 terminal to the H terminal. 2. If measurement is not following below, the horn switch is faulty. Resistance B2 terminal - T terminal...
  • Page 439 ME5700, WSM ELECTRICAL SYSTEM (C) Brake Switch Brake Switch 1) Wiring Harness 1. Disconnect the leads from the brake switch (1). 2. Connect the wiring harness lead terminals to each other and turn the main switch ON. 3. If the stop lights do not light, the fuse, wiring harness or bulb is faulty.
  • Page 440 ME5700, WSM ELECTRICAL SYSTEM Parking Brake Switch 1) Wiring Harness 1. Disconnect the leads from the parking brake switch (1). 2. Connect the wiring harness lead terminals to each other and turn the main switch on. 3. If the indicator do not light, the fuse, wiring harness or bulb is faulty.
  • Page 441 ME5700, WSM ELECTRICAL SYSTEM (D) Hazard Switch (ROPS Type) Hazard Switch 1. Connect the battery negative code, then mesure the voltage with a voltmeter across the a terminal a and chassis. 2. If the voltage differ from the battery voltage, the wiring harness is faulty.
  • Page 442 ME5700, WSM ELECTRICAL SYSTEM (E) Hazard Switch (CABIN Type) Connector Voltage 1. Disconnect the connector 5Y from hazard switch. 2. Measure the voltage with a voltmeter across the connector 3 terminal and chassis when the main switch is OFF position.
  • Page 443 ME5700, WSM ELECTRICAL SYSTEM (F) Working Light (CABIN Type) Working Light Switch 1. Remove the outer roof, and disconnect the working light switch connector (1) from the switch (2) connector. 2. Perform the following checkings 1) and 2). (1) Working Light Switch...

  • Page 444: Warning Lamps

    ME5700, WSM ELECTRICAL SYSTEM [6] WARNING LAMPS (1) Checking (A) Engine Oil Pressure Engine Oil Pressure Switch Panel Board and Wiring Harness 1. Disconnect the lead from the engine oil pressure switch (1) after turning the main switch OFF. 2. Turn the main switch ON and connect a jumper lead from the lead to the chassis.
  • Page 445 ME5700, WSM ELECTRICAL SYSTEM (B) Air Cleaner Sensor Air Cleaner Sensor Panel Board and Wiring Harness 1. Disconnect the leads from the air cleaner sensor (1) after turning the main switch OFF. 2. Turn the main switch ON and connect a jumper lead between the leads.
  • Page 446 ME5700, WSM ELECTRICAL SYSTEM Fuel Limit Sensor 1) Panel Board and Wiring Harness 1. Start the engine and check the easy checker. 2. Disconnect the 2P connector (2) from the fuel limit sensor. 3. If the fuel limit indicator lamp does not light on when 2P connector (2) is connected to the chassis, the panel board circuit or wiring harness is faulty.

  • Page 447: Gauges

    ME5700, WSM ELECTRICAL SYSTEM [7] GAUGES (1) Checking (A) Fuel Level Sensor Fuel Level Sensor Continuity 1. Remove the fuel level sensor from the fuel tank. 2. Measure the resistance with an ohmmeter across the sensor terminal and its body.
  • Page 448 ME5700, WSM ELECTRICAL SYSTEM (C) Fuel Gauge and Coolant Temperature Gauge Fuel Gauge and Coolant Temperature Gauge Continuity 1. Remove the panel board from the tractor. 2. Check the continuity with an ohmmeter across the FU terminal (2) and IG terminal (3) and across the FU terminal (2) and GND terminal (4).

  • Page 449: Trailer Socket

    ME5700, WSM ELECTRICAL SYSTEM [8] TRAILER SOCKET (1) Checking Trailer Socket 1) Turning Signal Terminals 1. Turn the main switch ON, and measure the voltage with voltmeter across the 1 terminal (1) and 3 terminal (2), and across the 4 terminal (3) and 3 terminal (2).
  • Page 450 CABIN KiSC issued 04, 2006 A...
  • Page 451 CONTENTS 1. AIR CONDITIONING SYSTEM ..................10-M1 [1] STRUCTURE .........................10-M1 [2] OUTLINE OF AIR CONDITIONING SYSTEM ............10-M2 [3] SYSTEM CONTROL.....................10-M3 KiSC issued 04, 2006 A...

  • Page 452: Air Conditioning System

    ME5700, WSM CABIN 1. AIR CONDITIONING SYSTEM [1] STRUCTURE (1) Water Valve (3) Air Conditioner Unit (5) Compressor (7) Condenser (2) Blower Motor (4) Pressure Switch (6) Receiver 0000002999E KiSC issued 04, 2006 A 10-M1...

  • Page 453: Outline Of Air Conditioning System

    ME5700, WSM CABIN [2] OUTLINE OF AIR CONDITIONING SYSTEM The machine is equipped with a thin large-capacity air conditioner with outside air intake. Through the inside air filter (9) as well as the outside air filter (4), the roof (8) and reaches the air conditioner unit (1).

  • Page 454: System Control

    ME5700, WSM CABIN [3] SYSTEM CONTROL (1) Air Mode Lever (7) Recirculated Air (12) DEFOGGER (A) Control Plate (2) Blow Switch (8) Blower (13) FACE (B) Air Selectioin Lever (3) Air Conditioner Switch (9) Evaporator (14) DEF and FACE (C) Block Diagram of Air...
  • Page 455 CONTENTS 1. TROUBLESHOOTING..................... 10-S1 2. SERVICING SPECIFICATIONS ..................10-S7 3. TIGHTENING TORQUES ....................10-S8 4. PRECAUTIONS AT REPAIRING REFRIGERANT CYCLE......... 10-S9 [1] HANDLING OF SERVICE TOOLS ................10-S10 (1) Manifold Gauge Set..................... 10-S10 (2) Refrigerant Charging Hose.................. 10-S12 (3) Vacuum Pump Adaptor ..................10-S13 (4) Electric Gas Leak Tester ..................
  • Page 456 ME5700, WSM CABIN 1. TROUBLESHOOTING COMPRESSOR Reference Symptom Probable Cause Solution Page Noisy(Compressor Bearing of compressor worn or damaged Replace 10-S31 Valves in compressor damaged Replace 10-S31 Belt slipping Adjust or replace G-28 Compressor bracket mounting screws loosen Tighten Piping resonant...
  • Page 457 ME5700, WSM CABIN Reference Symptom Probable Cause Solution Page (Many Bubbles in Insufficient refrigerant Check with manifold 10-S15 Sight Glass) gauge Gas leaking from some place in refrigerating Repair and charge 10-S13 refrigerant cycle Air mixed in Check with manifold...
  • Page 458 ME5700, WSM CABIN Air Conditioning System (Continued) 0000002373E KiSC issued 04, 2006 A 10-S3...
  • Page 459 ME5700, WSM CABIN 0000002374E KiSC issued 04, 2006 A 10-S4...
  • Page 460 ME5700, WSM CABIN 0000002375E KiSC issued 04, 2006 A 10-S5...
  • Page 461 ME5700, WSM CABIN WINDSHIELD WIPER Reference Symptom Probable Cause Solution Page Windshield Wiper Wiring defective Check and repair Does Not Operate Fuse blown (Short-circuit, burnt component Correct cause and G-36 replace inside motor or other part for operation) Wiper motor defective (Broken armature, worn...

  • Page 462: Servicing Specifications

    ME5700, WSM CABIN 2. SERVICING SPECIFICATIONS Item Factory Specification Allowable Limit Refrigerating Cycle Pressure 0.15 to 0.20 MPa (Refrigerating Cycle is Normal Operating) (LO Pressure Side) 1.5 to 2.0 21 to 28 psi Pressure 1.27 to 1.66 MPa (HI Pressure Side)
  • Page 463 ME5700, WSM CABIN 3. TIGHTENING TORQUES Tightening torques of screws, bolts and nuts on the table below are especially specified. (For general use screws, bolts and nuts : See page G-10.) Item ft-lbs High pressure pipe : between receiver and A/C unit (High pressure pipe 2) 11.8 to 14.7...

  • Page 464: Precautions At Repairing Refrigerant Cycle

    ME5700, WSM CABIN 4. PRECAUTIONS AT REPAIRING REFRIGERANT CYCLE When checking or repairing the air conditioning system, the following precautions and rules must be observed. And it is of first importance that no other personnel than a well-trained serviceman should be allow to handle the refrigerant.

  • Page 465: Manifold Gauge Set

    ME5700, WSM CABIN [1] HANDLING OF SERVICE TOOLS (1) Manifold Gauge Set The hand valves on the manifold gauge set are used to open and close the valve. The hand valve inscribed LO is for the low pressure side valve (3) and HI is for the high pressure side valve (4).
  • Page 466 ME5700, WSM CABIN When LO and HI Valve is Opened Two circuits are established. Port (A) HI pressure gauge (2) LO pressure gauge (1) Port (B) Port (C) Port (D) (Schrader valve must be opened) Schrader valve (D) must be opened.

  • Page 467: Refrigerant Charging Hose

    ME5700, WSM CABIN (2) Refrigerant Charging Hose The charging hoses are classified into three colors. Each charging hose must be handled as follows : The air conditioner manufacture recommends that the blue hose (3) is used for the LO pressure side (suction side), the green hose (5) for refrigeration side (center connecting port) and the red hose (4) for HI pressure side (discharged side).

  • Page 468: Vacuum Pump Adaptor

    ME5700, WSM CABIN (3) Vacuum Pump Adaptor Objective of the Vacuum Pump Adaptor 1. After vacuum has been created in the air conditioning cycle, when the vacuum pump is stopped, since there is vacuum in hoses within the gauge manifold, the vacuum pump oil flows back into the charging hose.

  • Page 469: Can Tap Valve

    ME5700, WSM CABIN (5) Can Tap Valve The can tap valve that is used to charge the refrigerant into the air conditioning system, should be used as follows : 1. Before putting the can tap valve on the refrigerant container, turn the handle (1) counterclockwise till the valve needle is fully retracted.

  • Page 470: Checking And Charging Refrigerant Cycle

    ME5700, WSM CABIN 5. CHECKING AND CHARGING REFRIGERANT CYCLE [1] CHECKING WITH MANIFOLD GAUGE The gauge indications described in the following testing are those taken under the same condition, so it should be noted that the gauge readings will differs somewhat with the ambient conditions.
  • Page 471 ME5700, WSM CABIN Insufficient Refrigerant 1. Symptoms seen in refrigerating cycle Both LO and HI pressure side (1), (2) pressures too low. LO pressure side (1) : 0.05 to 0.1 MPa (0.5 to 1.0 , 7.1 to 14.2 psi) HI pressure side (2) : 0.69 to 0.98 MPa (7 to 10 , 99.6 to 142.2 psi)
  • Page 472 ME5700, WSM CABIN Air Entered in the Cycle 1. Symptoms seen in refrigerating cycle Both LO and HI pressure side (1), (2) pressures too high. LO pressure side (1) : 0.2 to 0.35 MPa (2.0 to 3.5 , 28 to 49.8 psi) HI pressure side (2) : 1.96 to 2.45 MPa...
  • Page 473 ME5700, WSM CABIN Refrigerant Fails to Circulate 1. Symptoms seen in refrigerating cycle LO pressure side (1) pressure is vacuum and, HI pressure side (2) is low pressure. LO pressure side (1) : Vacuum HI pressure side (2) : 0.49 to 0.59 MPa (5 to 6 , 71.2 to 85.3 psi)

  • Page 474: Discharging, Evacuating And Charging

    ME5700, WSM CABIN Faulty Compression of Compressor 1. Symptoms seen in refrigerating cycle LO pressure side (1) : 0.39 to 0.59 MPa (4 to 6 , 56.9 to 85.3 psi) HI pressure side (2) : 0.69 to 0.98 MPa (7 to 10 , 99.6 to 142.2 psi)

  • Page 475: Evacuating The System

    ME5700, WSM CABIN (2) Evacuating the System 0000002166E Evacuating the System 1. Discharge refrigerant from the system by R134a refrigerant recovery and recycling machine. (Refer to "Discharging the system".) 2. Connect the charging hose (5) (red) to the HI pressure side charging valve and connect the charging hose (6) (blue) to the LO pressure side charging valve.

  • Page 476: Charging The System

    ME5700, WSM CABIN (3) Charging the System Charging an Empty System (Liquid) This procedure is for charging an empty system through the HI pressure side with the refrigerant in the liquid state. Never run the engine when charging the system through the HI pressure side.
  • Page 477 ME5700, WSM CABIN Charging an Empty or Partially Charged System (Vapor) This procedure is to charge the system through the LO pressure side with refrigerant in the vapor state. When the refrigerant container is placed right side up, refrigerant will enter the system as a vapor.

  • Page 478: Checking Charge Refrigerant Amount

    ME5700, WSM CABIN (4) Checking Charge Refrigerant Amount After charging the refrigerant, check for amount of charging refrigerant as follows. The pressure on the following checking are the gauge indications at ambient temperature 30 ), so it should be noted that the pressure will differ some what with the ambient temperature.

  • Page 479: Checking, Disassembling And Servicing

    ME5700, WSM CABIN 6. CHECKING, DISASSEMBLING AND SERVICING [1] SEPARATING CABIN FROM TRACTOR BODY (1) Disassembling and Assembling Draining Coolant Never remove the radiator cap until coolant temperature is well below its boiling point. Then loosen cap slightly to the stop to relieve any excess pressure before removing cap completely.
  • Page 480 ME5700, WSM CABIN Preparation 2 1. Disconnect the heater hoses (1). 2. Disconnect the accelerator wire (2) and engine stop wire (3). 3. Disconnect the hour meter cable (4). 4. Remove the screw (5). 5. Pull out the steering joint (6).
  • Page 481 ME5700, WSM CABIN Preparation 4 1. Remove the floor mat 1 (1), floor mat 2 (2), cover 1 (3) and cover 2 (4). 2. Disconnect the main shift rod (8). 3. Disconnect the shift wire (7). 4. Disconnect the lowering speed adjusting rod (9).
  • Page 482 ME5700, WSM CABIN Preparation 6 1. Disconnect the differential lock rods (1). 2. Disconnect the position control rod (3) and draft control rod (2). 3. Disconnect the PTO wire (5). 4. Disconnect the additional position control lever (4). (When reassembling) Be sure to adjust the position rod length A and draft rod length Approx.
  • Page 483 ME5700, WSM CABIN Preparation 7 1. Disconnect the auxiliary control valve wire (2). (When reassembling) Be sure to fix the auxiliary control valve wire (2) within allowance wire stroke S1, and clearance S2 properly. Allowance wire stroke : 5.0 to 7.0 mm Factory spec.
  • Page 484 ME5700, WSM CABIN Preparation 8 1. Remove the hose clamps (1). 2. Disconnect the low pressure pipe (2) from receiver. 3. Disconnect the high pressure pipe (3) from compressor. 4. Remove the cap stay (4). (When reassembling) 11.8 to 14.7 High pressure pipe 2 1.2 to 1.5...

  • Page 485: Compressor

    ME5700, WSM CABIN [2] COMPRESSOR (1) Checking Operation of Magnetic Clutch 1. Start the engine. 2. Check whether abrasion of abnormal noise is heard when only the magnetic clutch pulley is running while the A/C switch is turned OFF. 3. Check that the magnetic clutch (1) does not slip when the A/C switch and blower switch are turned ON (when the air conditioner is in operation).

  • Page 486: Disassembling And Assembling

    ME5700, WSM CABIN (2) Disassembling and Assembling Compressor Assembly 1. Discharge the refrigerant from the system. (Refer to "Discharging the System" : See page 10-S19.) 2. Disconnect the low pressure pipe (suction) (2) and high pressure pipe (discharge) (3) from the compressor, then cap the open fittings immediately to keep moisture out of the system.
  • Page 487 ME5700, WSM CABIN Hub Plate 1. Three stopper bolts (1) are set in stopper magnet clutch (2) at the position corresponding to the shape of compressor. (See page G-56.) 2. The stopper magnet clutch (2) is hung on hub plate (3) and it is fixed that the compressor rotates.

  • Page 488: Servicing

    ME5700, WSM CABIN Stator 1. Remove the lead wire from compressor body. 2. Remove the external circlip (1). 3. Remove the stator (2). (When reassembling) Do not use the cir-clip again. Assemble the cir-clip for the tapered side to become outside of front housing.

  • Page 489: Air Conditioning System And Front Windshield Wiper

    ME5700, WSM CABIN [3] AIR CONDITIONING SYSTEM AND FRONT WINDSHIELD WIPER (1) Checking (A) Air Conditioner Unit 1) Connector Voltage (A/C Main Relay, Compressor Relay) 1. When turning the main switch "ON" and voltage across the 1 terminal and chassis should be approx. battery voltage.
  • Page 490 ME5700, WSM CABIN (B) Blower Switch Connector Voltage 1. Disconnect the blower switch connector 8D. 2. Turn the main switch ON position. 3. Measure the voltage with a voltmeter across the connector 3 terminal and 4 terminal. 4. If the voltage differs from the battery voltage, the wiring harness, A/C relay, fuse or main switch is faulty.
  • Page 491 ME5700, WSM CABIN (C) Blower Motor Blower Motor Test 1. Remove the outer roof. 2. Turn the blower motor (1) by hand and check whether it turns smoothly. 3. Disconnect the connector (2) of blower motor (1). 4. Connect a jumper lead from battery (3) positive terminal to connector B terminal.
  • Page 492 ME5700, WSM CABIN (E) Blower High Relay 1) Connector Voltage 1. When turning the main switch "ON" and voltage across the 1 terminal and chassis should be approx. battery voltage. 2. The voltage across the 5, 7 terminal and chassis should be approx.
  • Page 493 ME5700, WSM CABIN (F) A/C Switch Connector Voltage 1. Disconnect the A/C switch connector 8D. 2. Turn the main switch ON position. 3. Measure the voltage with a voltmeter across the connector 6 terminal and 7 terminal. 4. If the voltage differs from the battery voltage, the wiring harness, A/C relay or fuse is faulty.
  • Page 494 ME5700, WSM CABIN (G) A/C Pressure Switch HI Pressure Side 1. Connect the manifold gauge (3) to compressor as following procedure. Close the HI and LO pressure valves (4), (5) of manifold gauge tightly, and connect the charging hoses (red and blue) (6), (7) to the respective compressor service valves.
  • Page 495 ME5700, WSM CABIN LO Pressure Side 1. Disconnect 2P connector of pressure switch. 2. Measure the resistance with an ohmmeter across the connector terminals. 3. If 0 ohm is not indicated at normal condition, there is no refrigerant in the refrigerating cycle because gas leaks or pressure switch is defective.

  • Page 496: Disassembling And Assembling

    ME5700, WSM CABIN Front Wiper Motor 1. Raise up the front wiper arm (1). 2. Turn the main switch ON. 3. Push the front wiper switch to ON position. 4. Count the number of wiper arm moving per minutes. 5. If the number differs from the factory specifications, replace the wiper motor assembly.
  • Page 497 ME5700, WSM CABIN Air Mixing Door Control Cable (Blue Cable) 1. Disconnect the air mixing door control cable (3) from the damper lever (1) of air conditioner control panel side. (When reassembling) Set the damper lever (1) of the air conditioner unit at MAX HOT position.
  • Page 498 ME5700, WSM CABIN Water Valve Control Cable (White Cable) 1. When disconnecting the water valve cable (2), follow the next reassembly procedure. (When reassembling) Fully close the water valve (1) and reconnect the cable (2). Set the control at MAX COOL position. Fit the inner cable in position, and press and fix the outer cable by the cable clip (3) in the direction of arrow (B) as shown at left.
  • Page 499 ME5700, WSM CABIN Front Wiper Motor 1. Remove the steering wheels and steering post under covers. 2. Remove the meter panel. 3. Remove the panel under cover. 4. Disconnect the front wiper motor 4P connector (2). 5. Remove the wiper arm mounting nut (4) and wiper arm (5).
  • Page 500 ME5700, WSM CABIN High Pressure Pipe 1 and Low Pressure Pipe 1. Disconnect the low pressure pipe (3) from the compressor (2) and cap the open fittings immediately to keep moisture out of the system. 2. Disconnect the high pressure pipe 1 (1) from the compressor (2) and condenser.
  • Page 501 ME5700, WSM CABIN Removing High Pressure and Low Pressure Pipes 1. Remove the outer roof. 2. Disconnect the pressure switch (1) connector. 3. Disconnect the high pressure pipe 2 (2), then cap the open fitting immediately to keep moisture out of the system.
  • Page 502 ME5700, WSM CABIN Muffler and Bonnet 1. Disconnect the battery's cable (4). 2. Remove the muffler (1). 3. Remove the bonnet (2). 4. Remove the side cover (3). (1) Muffler (3) Side Cover (2) Bonnet (4) Battery Cable 0000002229E Heater Hoses 1.

  • Page 503: Servicing

    ME5700, WSM CABIN (3) Servicing (A) Air Conditioning Unit Evaporator 1. Check whether white powder or dust is attached to the evaporator (1). If they are attached, wash them off with warm water and blow them off with compressed air.

  • Page 504: Disassembling And Assembling

    Sika-cleaner No. 1 Gummed tape Sika Tack-Ultrafast and cleaner No. 1 are made by Sika Corporation. These materials can't be provided by Kubota Corporation. Therefore, please find the local made equivalent materials in your country and use them when you need. 0000002241E...
  • Page 505 ME5700, WSM CABIN Before Replacing Windshields (1) [In case of using piano wire (When glass is cracked)] 1. Thread the piano wire from the inside of cabin. Tie its both ends to a wooden blocks or the like. (See the left figure.) 2.
  • Page 506 ME5700, WSM CABIN Before Replacing Windshields (3) 1. Check that the glasses are not damaged and cracked. 2. Turn over the glass and clean this surface of the glass by Sika- cleaner No. 1. 3. The cleaning area of the rear surface is indicated "A" in the figure left.
  • Page 507 ME5700, WSM CABIN Installing Windshield 1. Install the lower (left or right) windshield (1), (2) to the cabin and fix it with a gummed taped. Leave it for one hour. 2. Set the upper windshield (3) to the cabin and fix it with a gummed tape.
  • Page 508 EDITOR : KUBOTA FARM & INDUSTRIAL MACHINERY SERVICE, LTD. 64, ISHIZU-KITAMACHI, SAKAI-KU, SAKAI-CITY, OSAKA, 590-0823, JAPAN PHONE : ( 81 ) 72-241-1129 : ( 81 ) 72-245-2484 E-mail : ksos-pub@kubota.co.jp Printed in Japan 2006. 04, S, E I , E I , e Code No.9Y011-18401 KUBOTA Corporation 2003.

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