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Kubota WSM LA340 Workshop Manual
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Kubota WSM LA340 Workshop Manual

Tractor,front loader, backhoe,rotary mower
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WORKSHOP MANUAL
TRACTOR,FRONT LOADER,
BACKHOE,ROTARY MOWER
BX23S,LA340,BT603,
RCK54D,RCK60D,
RCK54,RCK60B
KiSC issued 03, 2017 A

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Summary of Contents for Kubota WSM LA340

  • Page 1 WORKSHOP MANUAL TRACTOR,FRONT LOADER, BACKHOE,ROTARY MOWER BX23S,LA340,BT603, RCK54D,RCK60D, RCK54,RCK60B KiSC issued 03, 2017 A...
  • Page 2 All illustrations, photographs and specifications contained in this manual are of the newest information available at the time of publication. Kubota reserves the right to change all information at any time without notice. Since this manual includes many models, information or illustrations and photographs can show more than one model.
  • Page 3 CONTENTS 1. INFORMATION SAFETY FIRST..............................1-1 1. Safety first..............................1-1 2. Before you start service ..........................1-2 3. Start safely..............................1-2 4. Operate safely ............................1-2 5. Protect against high pressure spray ......................1-3 6. Avoid hot exhaust .............................1-3 7. Exhaust filter cleaning ..........................1-3 8.
  • Page 4 1. General use screws, bolts and nuts ....................... 2-13 2. Stud bolts..............................2-13 3. Metric screws, bolts and nuts ......................... 2-14 4. American standard screws, bolts and nuts with UNC or UNF threads ........... 2-14 5. Plugs...............................2-14 6. Adapters, elbows and others ........................2-15 MAINTENANCE CHECK LIST.........................
  • Page 5 1.9.1 Replacing air cleaner element ....................2-39 1.10 Check points of every 1500 hours....................2-39 1.10.1 Checking injection pressure of fuel injection nozzle ............. 2-39 1.11 Check points of every 2000 hours or 2 years ................2-39 1.11.1 Flushing cooling system and changing coolant..............2-39 1.11.2 Antifreeze ..........................
  • Page 6 TIRES, WHEELS, AND BALLAST ........................2-53 1. Tires................................2-53 1.1 Inflation pressure of tires ......................... 2-53 1.2 Dual tires ............................2-53 2. Wheel tread ............................2-53 2.1 Front wheels............................2-54 2.2 Rear wheels ............................2-54 3. Ballast ..............................2-55 3.1 Front ballast ............................2-55 3.2 Rear ballast .............................2-55 IMPLEMENT LIMITATIONS ..........................
  • Page 7 4.3 Function of fuel feed pump......................3-12 4.4 Function of injection nozzle ......................3-12 SERVICING ..............................3-15 1. Troubleshooting for engine ........................3-15 2. Servicing specifications for engine ......................3-19 3. Tightening torques for engine ......................... 3-23 4. Checking and adjusting .......................... 3-24 4.1 Engine body ............................3-24 4.1.1 Checking compression pressure ....................
  • Page 8 6.1.15 Checking oil clearance between tappet and tappet guide bore ..........3-53 6.2 Timing gears, camshaft and governor gear..................3-54 6.2.1 Checking timing gear backlash ....................3-54 6.2.2 Checking idle gear 1 side clearance ..................3-54 6.2.3 Checking camshaft side clearance ..................3-54 6.2.4 Checking camshaft alignment....................
  • Page 9 3.2 Structure of mid and rear PTO ......................4-21 4. Others ..............................4-22 4.1 Hydraulic pump drive gear section ....................4-22 4.1.1 Structure of hydraulic pump drive gear ................... 4-22 SERVICING ..............................4-23 1. Troubleshooting for transaxle ......................... 4-23 2. Servicing specifications for transaxle ..................... 4-27 3.
  • Page 10 5.4.8 Removing PTO clutch assembly..................... 4-54 5.5 Assembling shafts ........................... 4-54 5.5.1 Assembling select arms and HST pump shaft (PTO clutch shaft) .......... 4-54 5.5.2 Assembling front wheel drive shaft, shifter, spiral bevel pinion shaft and mid-PTO shaft..4-55 6. Servicing ..............................4-56 6.1 Hydrostatic transmission .........................
  • Page 11 5.2.4 Removing 36T bevel gear and front axle shaft ............... 5-13 5.2.5 Removing front gear case and bevel gear case ..............5-13 5.2.6 Removing bevel pinion shaft and differential gear assembly..........5-14 5.2.7 Removing differential gear ...................... 5-14 6. Servicing ..............................5-15 6.1 Checking clearance between differential case and differential side gear........
  • Page 12 4.2.1 Control valve in neutral position....................7-5 4.2.2 Control valve in lift position ....................... 7-6 4.2.3 Control valve in down position ....................7-7 5. Flow priority valve .............................7-8 5.1 Outline of flow priority valve ......................7-8 5.2 Structure of flow priority valve ......................7-9 5.3 Specification of flow priority valve ....................
  • Page 13 5.2.5 Removing step ........................7-43 5.2.6 Removing fender ........................7-44 5.2.7 Removing fuel tank ......................... 7-44 5.2.8 Removing fender center stay ....................7-45 5.2.9 Removing mower linkage and wire harness ................7-45 5.2.10 Removing hydraulic cylinder block ..................7-45 5.3 Hydraulic cylinder and control valve....................7-46 5.3.1 Removing control valve ......................
  • Page 14 8.2.3 Function of fuel gauge ......................8-16 8.2.4 Function of coolant temperature gauge .................. 8-16 8.3 Function of fuel level sensor ......................8-17 8.4 Function of coolant temperature sensor..................8-17 8.5 Function of oil pressure switch ......................8-18 9. Others ..............................8-19 9.1 Electrical circuit for accessory ......................
  • Page 15 4.12.1 Checking charge lamp (charging circuit) ................8-43 4.12.2 Checking engine oil pressure lamp..................8-43 4.12.3 Checking engine oil pressure switch continuity ..............8-44 4.12.4 Checking fuel level sensor continuity..................8-44 4.12.5 Checking coolant temperature sensor connector voltage............. 8-44 4.12.6 Checking coolant temperature sensor continuity ..............8-45 4.12.7 Checking hour meter and tachometer ..................
  • Page 16 4.6 Mounting mower..........................9-9 5. Checking and adjusting .......................... 9-10 5.1 Mower adjustment ........................... 9-10 5.1.1 Adjusting mower link ....................... 9-10 5.1.2 Adjusting front and rear cutting height ..................9-10 5.1.3 Adjusting left and right cutting height ..................9-11 5.1.4 Adjusting cutting height......................9-12 5.2 Checking mower blade and belt ......................
  • Page 17 4.1.1 Removing loader........................10-19 4.1.2 Reinstalling loader ........................ 10-23 4.2 Bucket, boom and hydraulic cylinders................... 10-26 4.2.1 Attaching attachments ......................10-26 4.2.2 Removing attachments ......................10-28 4.2.3 Removing bucket cylinder..................... 10-29 4.2.4 Removing boom cylinder and hydraulic tubes ..............10-29 4.2.5 Removing piston rod assembly.....................
  • Page 18 5.1.4 Removing backhoe ....................... 11-28 5.2 Installing backhoe ......................... 11-28 5.2.1 Preparing to install backhoe ....................11-28 5.2.2 Connecting hydraulic hoses....................11-29 5.2.3 Setting mounting pins ......................11-29 5.2.4 Installing backhoe ......................... 11-29 5.3 Disassembling backhoe ........................ 11-30 5.3.1 Removing bucket ........................11-31 5.3.2 Removing dipperstick and bucket cylinder ................
  • Page 19 INFORMATION KiSC issued 03, 2017 A...

  • Page 20: Safety First

    SAFETY FIRST 1. Safety first 1. INFORMATION SAFETY FIRST 1. Safety first This symbol, the industry's "Safety Alert Symbol", is used throughout this manual and on labels on the machine itself to warn of the possibility of personal injury. Read these instructions carefully. It is essential that you read the instructions and safety regulations before you try to repair or use this unit.

  • Page 21: Operate Safely

    SAFETY FIRST 1. INFORMATION 2. Before you start service 2. Before you start service 4. Operate safely • Read all instructions and safety instructions in this manual and on your machine safety decals. • Clean the work area and machine. •...
  • Page 22 SAFETY FIRST 5. Protect against high pressure spray 1. INFORMATION 6. Avoid hot exhaust loosen the cap to release the pressure before you remove it fully. • Released fluid (fuel or hydraulic oil) under pressure can cause damage to the skin and cause serious injury.
  • Page 23 SAFETY FIRST 1. INFORMATION 8. Prevent a fire 8. Prevent a fire 10. Discard fluids correctly • Fuel is very flammable and explosive under some • Do not discard fluids on the ground, down the drain, conditions. Do not smoke or let flames or sparks in into a stream, pond, or lake.

  • Page 24: Prepare For Emergencies

    SAFETY FIRST 12. Prepare for emergencies 1. INFORMATION 12. Prepare for emergencies • Keep a first aid kit and fire extinguisher ready at all times. • Keep the emergency contact telephone numbers near your telephone at all times. BX23S, LA340, BT603, RCK54D, RCK60D, RCK54, RCK60B KiSC issued 03, 2017 A...
  • Page 25 SAFETY FIRST 1. INFORMATION BX23S, LA340, BT603, RCK54D, RCK60D, RCK54, RCK60B KiSC issued 03, 2017 A...

  • Page 26: Safety Label

    SAFETY LABEL 1. Safety labels for BX tractor 1. INFORMATION SAFETY LABEL 1. Safety labels for BX tractor The safety labels are installed on the machine. If a label becomes damaged, illegible or is not on the machine, replace it. The label part number is listed in the parts list. BX23S, LA340, BT603, RCK54D, RCK60D, RCK54, RCK60B KiSC issued 03, 2017 A...
  • Page 27 SAFETY LABEL 1. INFORMATION BX23S, LA340, BT603, RCK54D, RCK60D, RCK54, RCK60B KiSC issued 03, 2017 A...
  • Page 28 SAFETY LABEL 1. INFORMATION BX23S, LA340, BT603, RCK54D, RCK60D, RCK54, RCK60B KiSC issued 03, 2017 A...
  • Page 29 SAFETY LABEL 1. INFORMATION 1-10 BX23S, LA340, BT603, RCK54D, RCK60D, RCK54, RCK60B KiSC issued 03, 2017 A...
  • Page 30 SAFETY LABEL 1. INFORMATION 1-11 BX23S, LA340, BT603, RCK54D, RCK60D, RCK54, RCK60B KiSC issued 03, 2017 A...
  • Page 31 SAFETY LABEL 1. INFORMATION 2.Safety labels for mower 2. Safety labels for mower The safety labels are installed on the mower. If a label becomes damaged, illegible or is not on the mower, replace it. The label part number is listed in the parts list. 1-12 BX23S, LA340, BT603, RCK54D, RCK60D, RCK54, RCK60B KiSC issued 03, 2017 A...
  • Page 32 SAFETY LABEL 3.Safety labels for loader 1. INFORMATION 3. Safety labels for loader The safety labels are installed on the loader. If a label becomes damaged, illegible or is not on the loader, replace it. The label part number is listed in the parts list. 1-13 BX23S, LA340, BT603, RCK54D, RCK60D, RCK54, RCK60B KiSC issued 03, 2017 A...
  • Page 33 SAFETY LABEL 1. INFORMATION 1-14 BX23S, LA340, BT603, RCK54D, RCK60D, RCK54, RCK60B KiSC issued 03, 2017 A...
  • Page 34 SAFETY LABEL 4.Safety labels for backhoe 1. INFORMATION 4. Safety labels for backhoe The safety labels are installed on the backhoe. If a label becomes damaged, illegible or is not on the backhoe, replace it. The label part number is listed in the parts list. 1-15 BX23S, LA340, BT603, RCK54D, RCK60D, RCK54, RCK60B KiSC issued 03, 2017 A...
  • Page 35 SAFETY LABEL 1. INFORMATION 1-16 BX23S, LA340, BT603, RCK54D, RCK60D, RCK54, RCK60B KiSC issued 03, 2017 A...

  • Page 36: Specifications

    1.BX tractor specifications 1. INFORMATION SPECIFICATIONS 1. BX tractor specifications Model BX23S PTO power 13.2 kW (17.7 HP) Maker KUBOTA Model D902 Type Liquid-cooled, 4-cycle diesel Number of cylinders Bore and stroke 72.0 × 73.6 mm (2.83 × 2.90 in.) Total displacement 898 cm (54.8 cu.
  • Page 37 (Front: Option) Coupler (Fitting) ISO 7241-1 series B PTO shaft SAE 1-3/8, 6 splines Rear PTO Revolution STD (2500 rpm) USA No. 5 (KUBOTA 10-tooth) involute PTO shaft spline Mid PTO Revolution STD (2500 rpm) Manufacturer's estimate SAE J1995 See and check "Implement limitation tables".
  • Page 38 SPECIFICATIONS 2.Mower specifications 1. INFORMATION 2. Mower specifications Model RCK60D-26BX RCK54D-26BX Suitable tractor BX23S Drive-over-quick-joint, parallel linkage Mounting method Drive-over-suspended-linkage Adjustment of cutting height Dial gauge Cutting width 1524 mm (60 in.) 1372 mm (54 in.) Cutting height 25 to 102 mm (1.0 to 4.0 in.) Mower 115 kg (250 lbs) 103 kg (227 lbs)

  • Page 39: Loader Specifications

    SPECIFICATIONS 1. INFORMATION 3.Loader specifications 3. Loader specifications 3.1 Loader specifications Loader model LA340 and LA340S Tractor model BX23S Bore 40 mm (1.6 in.) Boom cylinder Stroke 326 mm (12.8 in.) Bore 65 mm (2.6 in.) Bucket cylinder Stroke 196 mm (7.72 in.) Control valve One detent float position, single bucket dump, power beyond circuit Rated flow...

  • Page 40: Bucket Specifications

    SPECIFICATIONS 3.Loader specifications 1. INFORMATION 3.2 Bucket specifications Loader model LA340 LA340S Model Square 48 in. Type Rigid Quick hitch Width 1219 mm (47.99 in.) Depth 491 mm (19.3 in.) 470 mm (18.5 in.) Height (M) 465 mm (18.3 in.) 523 mm (20.6 in.) Length (N) 538 mm (21.2 in.)
  • Page 41 This as a preview PDF file from best-manuals.com Download full PDF manual at best-manuals.com...