Kubota WSM Sta-30 Workshop Manual
  1. Manuals
  2. Brands
  3. Kubota Manuals
  4. Tractor
  5. WSM STa-30
  6. Workshop manual
Kubota WSM Sta-30 Workshop Manual

Kubota WSM Sta-30 Workshop Manual

Hide thumbs Also See for WSM Sta-30:
Table of Contents

Advertisement

Quick Links

Download this manual
WORKSHOP MANUAL
TRACTOR
STα-30,STα-35
KiSC issued 11, 2006 A

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the WSM Sta-30 and is the answer not in the manual?

Questions and answers

Related Manuals for Kubota WSM Sta-30

Summary of Contents for Kubota WSM Sta-30

  • Page 1 WORKSHOP MANUAL TRACTOR STα-30,STα-35 KiSC issued 11, 2006 A...
  • Page 2 STα-30 · STα-35, WSM SAFETY INSTRUCTIONS SAFETY INSTRUCTIONS SAFETY FIRST This symbol, the industry’s “Safety Alert Symbol”, is used throughout this manual and decals 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 3 STα-30 · STα-35, WSM SAFETY INSTRUCTIONS SAFETY STARTING • Do not start the engine by shorting across starter terminals or bypassing the safety start switch. • Do not alter or remove any part of machine safety system. • Before starting the engine, make sure that all shift levers are in neutral positions or in disengaged positions.
  • Page 4 STα-30 · STα-35, WSM SAFETY INSTRUCTIONS VENTILATE WORK AREA • If the engine must be running to do some work, make sure the area is well ventilated. Never run the engine in a closed area. The exhaust gas contains poisonous carbon monoxide. PREVENT ACID BURNS •...
  • Page 5 STα-30 · STα-35, 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. KiSC issued 11, 2006 A...
  • Page 6 STα-30 · STα-35, WSM SAFETY INSTRUCTIONS KiSC issued 11, 2006 A...
  • Page 7 STα-30 · STα-35, WSM SAFETY INSTRUCTIONS KiSC issued 11, 2006 A...
  • Page 8 SPECIFICATIONS Model STα-30 STα-35 PTO power 17.3 kW (23.5 PS) 21.0 kW (28.5 PS) Maker KUBOTA Model D1463-M-ST D1703-M-ST Type ETVCS, Indirect Injection. Vertical, water-cooled, 4-cycle diesel Number of cylinders 82 × 92.4 mm (3.23 × 3.64 in.) 87 × 92.4 mm (3.43 × 3.64 in.)
  • Page 9 Revolution 540 / 2673 min (rpm), 800 / 2738 min (rpm) PTO system PTO shaft USA No. 5 (KUBOTA 10-tooth) involute spline Mid. Revolution 1700 / 2710 min (rpm), 2500 / 2755 min (rpm) Note : * Manufacture’s estimate the company reserves the right to change the specifications without notice.
  • Page 10 STα-30 · STα-35, WSM TRAVELLING SPEED TRAVELLING SPEED Model STα-30 · STα-35 Tire size (Rear) 9.5-22 12.4-16 13.6-16 Range gear shift lever km/h (mile/h) km/h (mile/h) km/h (mile/h) 1 (Low) 0 to 6.6 (0 to 4.1) 0 to 6.3 (0 to 3.9) 0 to 6.5 (0 to 4.0) 2 (Middle) 0 to 12.7 (0 to 7.9)
  • Page 11 STα-30 · STα-35, WSM DIMENSIONS DIMENSIONS KiSC issued 11, 2006 A...
  • Page 12 GENERAL KiSC issued 11, 2006 A...

  • Page 13: Table Of Contents

    GENERAL CONTENTS 1. FEATURES ...................... G-1 2. TRACTOR IDENTIFICATION ................. G-2 3. GENERAL PRECAUTIONS ................G-3 4. HANDLING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING .. G-4 [1] WIRING...................... G-4 [2] BATTERY....................G-6 [3] FUSE......................G-6 [4] CONNECTOR .................... G-6 [5] HANDLING OF CIRCUIT TESTER............G-7 5.

  • Page 14: Features

    STα-30 · STα-35, WSM G GENERAL 1. FEATURES 1. Hydraulic Power Steering 2. E-TVCS (Three Vortex Combustion System) Diesel Engine 3. Engine Key Shut-Off System 4. Hydrostatic Transmission (HST) 5. 3 Range of Speed 6. Bi-speed Turn 7. Cruise Control 8.

  • Page 15: Tractor Identification

    STα-30 · STα-35, WSM G GENERAL 2. TRACTOR IDENTIFICATION When contacting your local KUBOTA distributor, always specify engine serial number, tractor serial number and hour meter reading. (1) Tractor Identification Plate (3) Engine Serial Number (2) Tractor Serial Number (4) Hour Meter...

  • Page 16: General Precautions

    Screws, bolts and nuts should be installed in their original position to prevent reassembly errors. • When special tools are required, use KUBOTA genuine special tools. Special tools which are not frequently used should be made according to the drawings provided.

  • Page 17: Handling Precautions For Electrical Parts And Wiring

    STα-30 · STα-35, WSM G GENERAL 4. 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. IMPORTANT • Check electrical wiring damage loosened...
  • Page 18 STα-30 · STα-35, WSM G GENERAL • Securely clamp, being careful not to damage wiring. (1) Clamp (3) Clamp • Wind Clamp Spirally (4) Welding Dent (2) Wire Harness W1011458 • Clamp wiring so that there is no twist, unnecessary sag, or excessive tension, except for movable part, where sag be required.

  • Page 19: Battery

    STα-30 · STα-35, WSM G GENERAL [2] BATTERY • Take care not to confuse positive and negative terminal posts. • When removing battery cables, disconnect negative cable first. When installing battery cables, check for polarity and connect positive cable first. •...

  • Page 20: Handling Of Circuit Tester

    STα-30 · STα-35, WSM G GENERAL • Use sandpaper to remove rust from terminals. • Repair deformed terminal. Make certain there is no terminal being exposed or displaced. (1) Exposed Terminal (3) Sandpaper (2) Deformed Terminal (4) Rust W1012346 • Make certain that there is no female connector being too open. (A) Correct (B) Incorrect W1012430...

  • Page 21: Lubricants Fuel And Coolant

    Above 25 °C (77 °F): SAE30, 10W-30 or 10W-40 18.5 L Transmission case 4.89 U.S.gals. KUBOTA SUPER UDT fluid* 4.07 Imp.gals. 4.0 L KUBOTA SUPER UDT fluid* or SAE80, 90 gear Front axle case 1.06 U.S.gals. 0.88 Imp.gals. Grease Place No. of greasing point Capacity...

  • Page 22: Tightening Torques

    STα-30 · STα-35, WSM G GENERAL 6. TIGHTENING TORQUES Screws, bolts and nuts whose tightening torques are not specified in this Workshop Manual should be tightened according to the table below. [1] GENERAL USE SCREWS, BOLTS AND NUTS Indication on top of No-grade or 4T bolt SCr435,...

  • Page 23: Maintenance

    STα-30 · STα-35, WSM G GENERAL 7. MAINTENANCE Service Time Interval Period Reference Important Item 2 years page Engine oil Change G-12 Engine oil filter Replace G-12 Transmission fluid Change G-13 Hydraulic oil filter (for HST) Replace G-13 Hydraulic oil filter Replace G-13 Front axle case oil...

  • Page 24: Check And Maintenance

    STα-30 · STα-35, WSM G GENERAL 8. CHECK AND MAINTENANCE CAUTION • Be sure to check and service the tractor on a flat place with engine shut off, the parking brake on and chock the wheels. [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 25: Check Points Of Initial 50 Hours

    Then, replenish the engine oil up to the specified level. IMPORTANT • To prevent serious damage to the engine, replacement element must be highly efficient. Use only a KUBOTA genuine filter or its equivalent. (1) Engine Oil Filter W1014892...
  • Page 26 Check the fluid level. IMPORTANT • To prevent serious damage to the hydraulic system. Use only a genuine KUBOTA filter or its equivalents. (1) Drain Plug (3) Hydraulic Oil Filter (for HST) (2) Hydraulic Oil Filter...
  • Page 27 3. After draining, screw in the two drain plugs. 4. Fill new oil from filling port with specified amount of oil. IMPORTANT • Use KUBOTA SUPER UDT fluid or SAE 80, 90 gear oil. Refer to “LUBRICANTS, FUEL AND COOLANT”. (See page G-8.) 4.0 L...

  • Page 28: Check Points Of Every 50 Hours

    STα-30 · STα-35, WSM G GENERAL [3] CHECK POINTS OF EVERY 50 HOURS Greasing 1. Apply a grease to the following position as figures. (1) Grease Fitting (Top Link) (4) Grease Fitting (Brake Pedal Shaft) (2) Grease Fitting (Lifting Rod RH) (5) Grease Fitting (Clutch Pedal Shaft) (3) Battery Terminal W1016347...
  • Page 29 STα-30 · STα-35, WSM G GENERAL Checking Engine Start System CAUTION • Do not allow anyone near the tractor while testing. • If the tractor does not pass the test do not operate the tractor. Preparation before testing. 1. Sit on operator’s seat. 2.

  • Page 30: Check Points Of Every 100 Hours

    STα-30 · STα-35, WSM G GENERAL [4] CHECK POINTS OF EVERY 100 HOURS Changing Engine Oil 1. See page G-12. W1017133 Checking Clutch Pedal Free Travel 1. See page G-14. W1017188 Cleaning Air Cleaner Element [Single Element and Double Element Type] 1.
  • Page 31 STα-30 · STα-35, WSM G GENERAL Cleaning Fuel Filter This job should not be done in the field, but in a clean place. 1. Close the fuel filter cock (1). 2. Unscrew the screw ring and remove the fuel filter bowl (2), and rinse the inside with kerosene.
  • Page 32 STα-30 · STα-35, WSM G GENERAL Checking Fan Belt Tension CAUTION • Be sure to stop engine before checking belt tension. 1. Stop the engine and remove the key. 2. Apply moderate thumb pressure to belt between pulleys. 3. If tension is incorrect, loosen the alternator mounting bolts and using a lever placed between the alternator and the engine block, pull the alternator out until the deflection of the belt falls within acceptable limits.
  • Page 33 STα-30 · STα-35, WSM G GENERAL Checking Parking Brake CAUTION • Be sure to stop engine before checking parking brake. 1. Slowly raise the parking brake lever (1) to the ratchet sound made by the parking brake lever. 2. If the No. of notch is not within the factory specifications, loosen the lock nut (2) and turn the brake rod LH (3) and RH (4) to adjust within acceptable limits.
  • Page 34 STα-30 · STα-35, WSM G GENERAL Checking Battery Condition DANGER To avoid the possibility of battery explosion: For the refillable type battery, follow the instructions below. • Do not use or charge the refillable type battery if the fluid level is below the LOWER (lower limit level) mark.

  • Page 35: Check Points Of Every 200 Hours

    STα-30 · STα-35, WSM G GENERAL Battery Charging CAUTION • 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 36 STα-30 · STα-35, WSM G GENERAL 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. 1. If hose clamps are loose or water leaks, tighten bands securely. 2.

  • Page 37: Check Points Of Every 400 Hours

    STα-30 · STα-35, WSM G GENERAL Adjusting Toe-in 1. Park the tractor on the flat place. 2. Inflate the tires to the specified pressure. 3. Turn steering wheel so front wheels are in the straight ahead position. 4. Lower the implement, lock the parking brake and stop the engine. 5.

  • Page 38: Check Points Of Every 800 Hours

    STα-30 · STα-35, WSM G GENERAL [8] CHECK POINTS OF EVERY 800 HOURS Checking Valve Clearance 1. See page 1-S21. W1021033 [9] CHECK POINTS OF EVERY 1 YEAR Replacing Air Cleaner Element (Primary) and Secondary Element 1. See page G-17. W1021125 [10] CHECK POINTS OF EVERY 2 YEARS Replacing Radiator Hose (Water Pipes)
  • Page 39 STα-30 · STα-35, WSM G GENERAL Flushing Cooling System and Changing Coolant CAUTION • Do not remove the radiator cap when the engine is hot. Then loosen cap slightly to the stop to relieve any excess pressure before removing cap completely. 1.
  • Page 40 STα-30 · STα-35, WSM G GENERAL Flashing Cooling system and Changing Coolant (Continued) Anti-Freeze If coolant freezes, it can damage the cylinders and radiator. It is necessary, if the ambient temperature falls below 0 °C (32 °F), to remove coolant after operating or to add anti-freeze to it. 1.

  • Page 41: Others

    STα-30 · STα-35, WSM G GENERAL [11] OTHERS Bleeding Fuel System 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. Bleeding procedure is as follows: 1.
  • Page 42 Refer to troubleshooting section of this manual or your local KUBOTA distributor for specific information dealing with electrical problems. If any of them should blow, replace with a new one of the same capacity.

  • Page 43: Special Tools

    STα-30 · STα-35, WSM G GENERAL 9. 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. W1024050 Piston Ring Compressor Code No: 07909-32111 Application: Use exclusively for pushing in the piston with piston rings into the cylinder.
  • Page 44 STα-30 · STα-35, WSM G 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 W1024318 Valve Seat Cutter Code No:...
  • Page 45 STα-30 · STα-35, WSM G GENERAL Auxiliary Socket For Fixing Crankshaft Sleeve Code No: 07916-32091 Application: Use to fix the crankshaft sleeve of the diesel engine. W1077114 Plastigage Code No: 07909-30241 Application: Use to check the oil clearance between crankshaft and bearing, etc.
  • Page 46 STα-30 · STα-35, WSM G GENERAL NOTE • The following special tools are not provided, so make them referring to the figure. 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.
  • Page 47 STα-30 · STα-35, WSM G GENERAL Bushing Replacing Tools Application: Use to press out and to press fit the bushing. (1) For small end bushing 162 mm (6.38 in.) 35 mm (1.38 in.) 27 mm (1.06 in.) 35 mm dia. (1.38 in. dia.) 27.90 to 27.95 mm dia.
  • Page 48 STα-30 · STα-35, WSM G 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.) 20 mm dia.
  • Page 49 Download the full PDF manual instantly. Our customer service e-mail: aservicemanualpdf@yahoo.com...

This manual is also suitable for:

Wsm sta-35

Table of Contents