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WSM BX2680
Kubota WSM BX2680 User Manual
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WORKSHOP MANUAL
TRA
CT
OR,MO
WER
BX1880,BX2380,BX2680,
RCK60B-23BX,
RCK54-23BX,
RCK48-18BX,RCK60D-26BX,
RCK54D-26BX
KiSC issued 03, 2019 A
2
Table of Contents
Default Chapter
5
Table of Contents
5
Information
19
Safety First
20
Before You Start Service
21
Start Safely
21
Operate Safely
21
Avoiding High Pressure Fluid
22
Avoiding Hot Exhaust
22
Cleaning Exhaust Filter
22
Prevent a Fire
23
Keep a Good Airflow in the Work Area
23
Discard Fluids Correctly
23
Prevent Acid Burns
23
Preparing for Emergencies
24
Safety Label
26
Safety Labels for BX Tractor
26
Safety Labels for Mower
31
Care of Danger, Warning and Caution Labels
33
Specifications
34
BX Tractor Specifications
34
Mower Specifications (RCK60B-23BX, RCK54-23BX and RCK48-18BX)
36
Mower Specifications (RCK60D-26BX and RCK54D-26BX)
37
Traveling Speeds
38
Dimensions
40
General
42
Identification
43
Tractor Identification
43
Checking Serial Number and Hour Meter
43
Cylinder Number
44
Checking Mower Identification
44
General Precautions
45
Handling Precautions for Electrical Parts and Wiring
47
Lubricants, Fuel and Coolant
49
BX Tractor
49
Engine Oil
50
Fuel
50
Transmission Oil
50
Overview of Biodiesel Fuel (BDF)
51
Mower
53
Lubricants
53
Tightening Torques
55
General Use Screws, Bolts and Nuts
55
Stud Bolts
55
Metric Screws, Bolts and Nuts
56
American Standard Screws, Bolts and Nuts with UNC or UNF Threads
56
Plugs
56
Maintenance Check List
57
BX Tractor Service Intervals
57
Mower Service Intervals
59
Check and Maintenance
61
Periodic Service
61
Opening Bonnet
61
Daily Check
61
Walk Around Inspection
61
Checking Fuel Gauge and Refueling
61
Checking Engine Oil Level
62
Checking Transmission Fluid Level
62
Checking Coolant Level
63
Cleaning Panel and Radiator Screen
63
Checking Brake Pedal
64
Checking Gauges, Meters, and Easy Checker
64
Checking Head Light, Hazard Light, and Tail Light
64
Checking Seat Belt and ROPS
64
Checking and Cleaning Electrical Wiring and Battery Cables
64
Checking Movable Parts
65
Check Points of Initial 50 Hours
65
Changing Engine Oil
65
Replacing Engine Oil Filter
65
Replacing Transmission Oil Filter
66
Check Points of Every 50 Hours
66
Greasing
66
Checking Engine Start System
68
Checking Operator Presence Control (OPC) System
68
Checking Wheel Bolt Torque
68
Cleaning Lock Lever Shaft
69
Check Points of Every 100 Hours
69
Checking Battery Condition
69
Cleaning Air Cleaner Element
70
Checking Fuel Filter
71
Adjusting Fan Belt Tension
72
Adjusting HST Neutral Spring
72
Adjusting Brake Pedal
73
Check Point of Every 200 Hours
73
Replacing Engine Oil Filter
73
Changing Engine Oil
74
Replacing Transmission Oil Filter
75
Adjusting Toe-In
75
Check Points of Every 400 Hours
75
Adjusting Front Axle Pivot
75
Changing Transmission Fluid
76
Cleaning Transmission Strainer
77
Changing Front Axle Case Oil
77
Replacing Fuel Filter Element
77
Check Points of Every 800 Hours
78
Adjusting Engine Valve Clearance
78
Check Points of Every 1000 Hours or 1 Year
78
Replacing Air Cleaner Element
78
Check Points of Every 1500 Hours
78
Checking Injection Pressure of Fuel Injection Nozzle
78
Check Points of Every 2000 Hours or 2 Years
78
Flushing Cooling System and Changing Coolant
78
Antifreeze
79
Check Points of Every 3000 Hours
80
Checking Injection Pump
80
Check Points of Every 1 Year
80
Checking Intake Air Line
80
Checking Radiator Hoses and Hose Clamps
80
Checking Power Steering Line
81
Checking Fuel Lines
81
Checking Engine Breather Hose
82
Check Points of Every 4 Years
82
Replacing Engine Breather Hose
82
Replacing Fuel Hose
82
Replacing Intake Air Line
82
Replacing Power Steering Hose
82
Replacing Radiator Hose
82
Bleeding Fuel System
83
Replacing Fuse
83
Service as Required
83
Check Points of Daily or each Use
84
Checking Mower Blade
84
Mower
84
Replacing Light Bulb
84
Retightening Mower Blade Screw
84
Checking Gear Box Oil Level
85
Checking Mower Belt
85
Greasing Spindle Shafts, Belt Tension Pivot and Tension Pulley
85
Greasing Balance Shaft
86
Changing Gear Box Oil
87
Check Points of Initial 50 Hours
87
Greasing Front and Rear Anti-Scalp Rollers
87
Greasing Universal Joint
87
Changing Gear Box Oil
88
Check Point of Every 150 Hours
88
Check Point of Every 4 Years
88
Check Points of Every 1 Year
88
Checking Gear Box Oil Seal
88
Replacing Gear Box Oil Seal
88
Tires, Wheels, and Ballast
89
Dual Tires
89
Inflation Pressure of Tires
89
Tires
89
Wheel Tread
89
Front Wheels
90
Rear Wheels
90
Ballast
91
Front Ballast
91
Rear Ballast
91
Implement Limitations
93
Weight of Implements as Rear Ballast
93
Implement Limitation Tables
94
Special Tools
97
Diesel Engine Compression Tester (for Injection Nozzle)
97
Injection Pump Pressure Tester
97
Nozzle Tester
97
Special Tools for Engine
97
Special Use Puller Set
97
Valve Guide Replacing Tool
98
Bushing Replacing Tool
99
Flywheel Stopper
100
Crankshaft Bearing 1 Replacing Tool
101
Governor Gear Holder Busing Replacing Tool
101
Independent PTO Clutch Spring Compression Tool
102
Special Tools for Tractor
102
Tie-Rod End Lifter
102
Disassembling and Assembling Stand (1/2)
103
Disassembling and Assembling Stand (2/2)
105
Check and High Pressure Relief Valve Assembly Tool
107
Quick Coupler Cartridge Socket
109
Engine
111
Mechanism
112
Engine Body
112
Function of Closed Breather
112
Function of Cylinder Block
112
Function of Half-Floating Head Cover
112
Function of Connecting Rod
113
Function of Crankshaft
113
Function of Piston
113
Function of Piston Ring
113
Function of Camshaft
114
Function of Flywheel
114
Function of Rocker Arm
114
Function of Timing Gears
115
Lubricating System
116
Overview of Lubricating System
116
Function of Oil Filter
118
Function of Oil Pump
118
Function of Oil Strainer
118
Function of Oil Pressure Switch
119
Function of Relief Valve
119
Cooling System
120
Overview of Cooling System
120
Function of Radiator
122
Function of Radiator Cap
122
Function of Water Pump
122
Fuel System
123
Function of Fuel Feed Pump
123
Function of Fuel Filter
123
Function of Injection Nozzle
123
Overview of Fuel System
123
Servicing
126
Troubleshooting for Engine
126
Servicing Specifications for Engine
130
Tightening Torques for Engine
139
Checking and Adjusting
141
Checking Compression Pressure
141
Checking Valve Clearance
141
Engine Body
141
Checking Engine Oil Pressure
142
Lubricating System
142
Checking Fan Belt Damage and Wear
143
Checking Fan Belt Tension
143
Checking Radiator Cap Air Leakage
143
Cooling System
143
Checking Radiator Water Leakage
144
Checking Thermostat Valve Opening Temperature
144
Checking Injection Timing
145
Fuel System
145
Checking Fuel Tightness of Delivery Valve
146
Checking Fuel Tightness of Pump Element
146
Checking Fuel Injection Pressure
147
Checking Nozzle Spraying Condition
147
Checking Nozzle Holder
148
Checking Valve Seat Tightness
148
Disassembling and Assembling
149
Draining Engine Oil
149
Removing Battery
149
Separating Engine
149
Removing Bonnet
150
Disconnecting Fuel Hoses
151
Disconnecting Wiring Harness and Ground Cables
151
Disconnecting Accelerator Wire
152
Disconnecting Propeller Shaft Assembly
152
Separating Engine
152
Draining Coolant and Removing Outer Engine Parts
153
Cylinder Head and Valve
154
Disassembling Engine
154
Gear Case and Timing Gears
158
Piston and Connecting Rod
162
Flywheel and Crankshaft
164
Servicing
166
Checking Cylinder Head Surface Flatness
166
Checking Top Clearance
166
Cylinder Head and Valve
166
Checking Cylinder Head Flaw
167
Checking Clearance between Valve Stem and Valve Guide
168
Checking Valve Recessing
168
Checking Valve Seating
169
Replacing Valve Guide
169
Correcting Valve
170
Correcting Valve Seat
170
Checking Free Length and Tilt of Valve Spring
171
Checking Valve Spring Setting Load
171
Lapping Valve
171
Checking Oil Clearance between Rocker Arm and Rocker Arm Shaft
172
Checking Push Rod Alignment
172
Checking Oil Clearance between Tappet and Tappet Guide Bore
173
Checking Timing Gear Backlash
173
Timing Gears, Camshaft and Governor Gear
173
Checking Camshaft Side Clearance
174
Checking Idle Gear 1 Side Clearance
174
Checking Cam Height
175
Checking Camshaft Alignment
175
Checking Oil Clearance of Camshaft Journal
175
Checking Oil Clearance between Idle Gear 1 Shaft and Idle Gear Bushing
176
Checking Oil Clearance between Piston Pin and Small End Bushing
177
Checking Piston Pin Bore I.D
177
Piston and Connecting Rod
177
Replacing Idle Gear Bushing
177
Checking Connecting Rod Alignment
178
Replacing Small End Bushing
178
Checking Clearance between Piston Ring and Piston Ring Groove
179
Checking Piston Ring Gap
179
Checking Crankshaft Side Clearance
180
Crankshaft
180
Checking Crankshaft Alignment
181
Checking Oil Clearance between Crankpin and Crankpin Bearing
181
Checking Oil Clearance between Crankshaft Journal and Crankshaft Bearing 1
183
Replacing Crankshaft Bearing 1
184
Checking Oil Clearance between Crankshaft Journal and Crankshaft Bearing 2 and Crankshaft Bearing 3
185
Checking Cylinder Wear
187
Correcting Cylinder (Oversize)
187
Cylinder
187
Checking Clearance between Outer Rotor and Pump Body
188
Checking Rotor Lobe Clearance
188
Oil Pump
188
Checking Clearance between Rotor and Cover
189
Checking Relief Valve
189
Relief Valve Spring
189
Transaxle
190
Mechanism
191
Structure of Transaxle
191
Traveling System
192
Hydrostatic Transmission
192
Structure of Hydrostatic Transmission
192
Oil Flow of Hydrostatic Transmission
193
Structure of HST Control Linkage
198
Speed Set Linkage
199
Range Gear Shift Section
202
Structure of Range Gear Shift
202
Front Wheel Drive Section
203
Structure of Front Wheel Drive
203
Differential Gear Section
204
Structure of Differential Gears
204
Structure of Differential Lock
206
Brake Section
207
Structure of Brake System
207
PTO System
209
Structure of PTO System
209
Disengaged Function of PTO Clutch
210
Engaged Function of PTO Clutch
210
Function of PTO Clutch Relief Valve
210
Structure of MID and Rear PTO
211
Others
212
Hydraulic Pump Drive Gear Section
212
Structure of Hydraulic Pump Drive Gear
212
Servicing
213
Troubleshooting for Transaxle
213
Servicing Specifications for Transaxle
217
Tightening Torques for Transaxle
218
Checking and Adjusting
219
Adjusting HST Neutral Position
219
Adjusting Maximum Speed
219
Checking and Adjusting HST Neutral Spring (Dynamic Braking)
220
Checking Charge Relief Pressure
221
Checking High Relief Pressure (Forward)
222
Checking High Relief Pressure (Reverse)
223
Readjusting Relief Valve (When HST Does Not Work Due to Its Loose Hexagon Socket Head Screw)
223
Adjusting Brake Pedal Free Travel
225
Checking PTO Clutch Operating Pressure
225
Disassembling and Assembling
226
Draining Transmission Fluid
226
Removing Battery
226
Separating Transaxle
226
Removing Lift Rod and Lower Link
227
Removing ROPS
227
Removing Seat
227
Removing Fender
228
Removing Fuel Tank
228
Removing Step
228
Removing Fender Center Stay
229
Removing Rear Wheel
229
Removing Transaxle Assembly
230
Removing Brake Pedal
231
Removing Differential Lock Pedal
232
Removing Propeller Shaft
232
Removing Speed Control Pedal, HST Damper, and Cruise Rod
232
Hydrostatic Transmission
233
Removing Levers and Mower Lift Arm
233
Removing PTO Clutch Valve
233
Removing Center Section and Valve Plates
234
Removing Oil Cooler Cover
234
Checking Check and High Pressure Relief Valve
235
Removing Check and High Pressure Relief Valve Plug
235
Removing Cylinder Block
235
Removing Cylinder Block and Piston
236
Removing Swashplate and Trust Roller Bearing
236
Removing 4WD Detent Ball
237
Removing Neutral Arm and Trunnion Arm
237
Hydraulic Cylinder
238
Removing Hydraulic Cylinder
238
Removing Transaxle Case
238
Transaxle Shafts
238
Removing Hydraulic Pump Assembly
240
Disassembling Rear Axle (L.H.)
241
Removing Rear PTO Cover Assembly
241
Removing Rear Axle Case (R.H.)
242
Removing 66T Final Gear
243
Removing Rear Axle Case, R.H. and Brake
244
Assembling Select Arms and HST Pump Shaft (PTO Clutch Shaft)
245
Assembling Shafts
245
Removing PTO Clutch Assembly
245
Assembling Front Wheel Drive Shaft, Shifter, Spiral Bevel Pinion Shaft and MID-PTO Shaft
246
Servicing
247
Checking Center Section
247
Checking Charge Relief Valve
247
Checking Check and High Pressure Relief Valve
247
Hydrostatic Transmission
247
Checking Cylinder Block Assembly
248
Checking Pump Shaft (PTO Clutch Shaft)
248
Checking Thrust Washer, Thrust Roller Bearing, Thrust Plate and Cradle Bearing
248
Checking Bearing
249
Checking Needle Bearing
249
Checking PTO Clutch Disc Wear
249
Checking Separate Plate and Back Plate Wear
249
Transaxle Case
249
Checking Clutch Spring Free Length
250
Checking Flatness of Clutch Piston, Pressure Plate and Steel Plate
250
Checking PTO Brake Disc Wear
250
Checking PTO Brake Plate
250
Checking Backlash between Differential Pinion and Differential Side Gear
251
Checking Clearance between Differential Case and Differential Side Gear
251
Checking Clearance between Differential Pinion Shaft and Differential Pinion
251
Checking Backlash between Spiral Bevel Pinion Gear and Bevel Gear
252
Checking Brake Cam Lever Movement
252
Checking Flatness of Actuator and Bearing Holder
252
Checking Brake Disc and Friction Plate Wear
253
Checking Height of Cam Plate and Ball
253
Front Axle
255
Mechanism
256
Structure of Front Axle
256
Front Wheel Alignment
257
Camber of Front Axle
257
Caster of Front Axle
257
Kingpin Angle of Front Axle
257
Toe-In of Front Axle
257
Servicing
260
Troubleshooting for Front Axle
260
Servicing Specifications for Front Axle
261
Tightening Torques for Front Axle
262
Checking and Adjusting
263
Adjusting Toe-In
263
Adjusting Front Wheel Steering Angle
264
Disassembling and Assembling
264
Draining Front Axle Case Oil
264
Removing Battery
264
Separating Front Axle Assembly
264
Removing Bonnet
265
Removing Front Wheel and Propeller Shaft Cover
265
Disconnecting Propeller Shaft
266
Removing Front Axle Assembly
266
Front Axle Assembly
267
Removing Bevel Gear Case and Front Gear Case
267
Removing Front Gear Case Cover
267
Removing Power Steering Cylinder
267
Removing 36T Bevel Gear and Front Axle Shaft
268
Removing Front Gear Case and Bevel Gear Case
268
Removing Bevel Pinion Shaft and Differential Gear Assembly
269
Removing Differential Gear
270
Servicing
270
Checking Clearance between Differential Case and Differential Side Gear
270
Checking Clearance between Differential Pinion Shaft and Differential Pinion
270
Checking Backlash between Differential Pinion and Differential Side Gear
271
Checking Turning Torque of Bevel Pinion Shaft
271
Checking Backlash between 12T Bevel Gear and 15T Bevel Gear
272
Checking Backlash between Bevel Pinion Shaft and Bevel Gear
272
Checking Clearance between Center Pin and Pin Support Bushing
273
Steering
274
Mechanism
275
Structure of Steering System
275
Hydraulic Circuit of Steering
276
Steering Controller
277
Control Valve
277
Metering Device
277
Structure of Steering Controller
277
Relief Valve
278
Steering Cylinder
279
Structure of Steering Cylinder
279
Servicing
281
Troubleshooting for Steering
281
Servicing Specifications for Steering
283
Checking and Adjusting
285
Checking Relief Valve Operating Pressure
285
Disassembling and Assembling
285
Power Steering Cylinder
285
Removing Adapter and Tie-Rod
285
Disassembling Steering Cylinder
286
Removing Battery
286
Separating Power Steering Controller
286
Removing Steering Controller
287
Removing Steering Wheel
287
Removing Upper Panel
287
Removing Bonnet
288
Separating Power Steering Cylinder
288
Removing Front Axle Assembly
289
Removing Power Steering Cylinder
289
Servicing
290
Checking Clearance between Rod and Guide
290
Checking Steering Cylinder I.D
290
Hydraulic System
291
Mechanism
292
Structure of Hydraulic System
292
Hydraulic Circuit
293
Hydraulic Pump
295
Outline of Hydraulic Pump
295
Specification of Hydraulic Pump
295
Structure of Hydraulic Pump
295
Control Valve
295
Outline of Control Valve
295
Control Valve in Neutral Position
296
Function of Control Valve
296
Control Valve in Lift Position
297
Control Valve in down Position
298
Flow Priority Valve
299
Outline of Flow Priority Valve
299
Structure of Flow Priority Valve
300
Specification of Flow Priority Valve
301
Relief Valve
301
Outline of Relief Valve
301
Structure of Relief Valve
302
Function of Relief Valve
303
Specification of Relief Valve
304
Hydraulic Cylinder
305
Structure of Hydraulic Cylinder
305
Hydraulic Block Type Outlet
306
Structure of Hydraulic Block Type Outlet
306
Mower Linkage
307
Structure of Mower Linkage
307
Front Loader Valve
308
Structure
308
Structure of Front Loader Valve and Pipe
308
Structure of Front Loader Control Valve
309
Front Loader Hydraulic Circuit
310
Function of Loader Control Valve
311
Loader Control Lever in Neutral Position
311
Loader Control Lever in up Position
312
Loader Control Lever in down Position
314
Loader Control Lever in Floating Position
316
Loader Control Lever in Roll-Back Position
318
Loader Control Lever in Dump Position
320
Servicing
322
Troubleshooting for Hydraulic System
322
Servicing Specifications for Hydraulic System
323
Tightening Torques for Hydraulic System
324
Checking and Adjusting
325
Checking Hydraulic Pump Oil Flow
325
Checking Relief Valve Setting Pressure
325
Pump and Priority Valve
325
Relief Valve
325
Checking Power Steering Oil Flow
326
Adjusting Mower Lift Linkage
327
Mower Lift Linkage
327
Disassembling and Assembling
328
Hydraulic Pump
328
Removing Battery
328
Removing Lift Rod and Lower Link
328
Removing Fender
329
Removing ROPS
329
Removing Seat
329
Removing Step
329
Removing Fender Center Stay
330
Removing Fuel Tank
330
Removing Hydraulic Pump
330
Hydraulic Cylinder Block
331
Removing Battery
331
Removing Lift Rod and Lower Link
332
Removing ROPS
332
Removing Seat
332
Removing Step
332
Removing Fender
333
Removing Fuel Tank
333
Removing Fender Center Stay
334
Removing Hydraulic Cylinder Block
334
Removing Mower Linkage and Wire Harness
334
Hydraulic Cylinder and Control Valve
335
Removing Control Valve
335
Removing Control Valve Lever
335
Removing Hydraulic Piston
336
Removing Lift Arm, Hydraulic Arm Shaft and Hydraulic Arm
336
Removing Lowering Speed Adjusting Valve
336
Disassembling Mower Linkage
337
Mower Lift Linkage
337
Control Valve (Front Loader)
338
Removing Battery
338
Removing ROPS
338
Removing Seat
338
Removing Step
338
Removing Control Valve
339
Removing Fender
339
Disassembling Control Valve
340
Quick Coupler
341
Removing Quick Coupler (Tractor Side)
341
Servicing
341
Checking Clearance between Tip of Gear Tooth and Casing
341
Hydraulic Pump
341
Checking Clearance between Bushing and Shaft
342
Checking Hydraulic Cylinder Bore
342
Checking Side Plate Thickness
342
Hydraulic Cylinder
342
Checking Hydraulic Arm Shaft Bushing
343
Electrical System
344
Mechanism
345
Wiring Diagram of BX Tractor
345
Electrical Connector Chart
346
Reading Electrical Circuit Diagrams
347
Electrical Wiring Chart Symbols
347
Layout of Connector Diagrams
350
Precautions on Handling Electrical Connectors
351
Starting System
352
Electrical Circuit of Starting System
352
Function of Relay
353
Function of Starter
353
Function of Fuel Pump
354
Function of Glow Plug
354
Function of Safety Switch
354
Operator Presence Control (OPC) System
355
Electrical Circuit of OPC Timer
355
Charging System
356
Electrical Circuit for Charging System
356
Function of IC Regulator (3P Connector Type)
357
Lighting System
358
Electrical Circuit for Lighting System
358
Gauges
359
Electrical Circuit of Gauge System
359
Function of Coolant Temperature Gauge
360
Function of Fuel Gauge
360
Function of Hour Meter
360
Function of Tachometer
360
Meter Panel
360
Function of Coolant Temperature Sensor
361
Function of Fuel Level Sensor
361
Function of Oil Pressure Switch
362
Others
363
Electrical Circuit for Accessory
363
Function of DC Outlet
364
Servicing
365
Troubleshooting for Electrical System
365
Service Specifications for Electrical System
371
Tightening Torques for Electrical System
372
Checking and Adjusting
373
Battery
373
Checking Battery Specific Gravity
373
Checking Battery Terminal Connection
373
Checking Battery Voltage
373
Checking Main Switch Connector Voltage
374
Checking Main Switch Continuity at off Position
374
Main Switch
374
Checking Main Switch Continuity at on Position
375
Checking Main Switch Continuity at Preheat Position
375
Checking Main Switch Continuity at Start Position
375
Starter
376
Checking Motor
376
Testing Starter Magnet Switch (Pull-In, Holding Coils)
376
Glow Plug
376
Checking Glow Plug Lead Terminal Voltage
376
Checking Glow Plug Continuity
377
Safety Switch
377
Checking PTO Shift Lever Switch Continuity
377
Checking HST Neutral Switch Continuity
378
Checking Seat Switch and Seat Turnover Switch Continuity
378
Checking OPC Timer
380
Fuel Pump
380
Checking Fuel Pump Connector Voltage
380
Checking Fuel Pump Continuity
381
Engine Stop Solenoid
381
Testing Engine Stop Solenoid
381
Timer Relay
381
Checking Timer Relay Connector Voltage
381
Testing Timer Relay
381
Charging System
382
Checking Battery Charging Current
382
Combination Switch
382
Removing Combination Switch
382
Checking Combination Switch Connector Voltage
382
Checking Head Light Switch Continuity When Setting Switch at off Position
383
Checking Head Light Switch Continuity When Setting Switch at on Position
383
Checking Turn Signal Light Switch Continuity When Setting Switch Knob at off Position
384
Checking Turn Signal Light Switch Continuity When Setting Switch Knob at RIGHT Position
384
Checking Turn Signal Light Switch Continuity When Setting Switch Knob at LEFT Position
385
Checking Hazard Switch Continuity When Setting Switch Knob at off Position
385
Checking Hazard Switch Continuity When Setting Switch Knob at on Position
386
Checking Flasher Unit Connector Voltage
386
Testing Flasher Unit Actuation
387
Gauge
387
Checking Charge Lamp (Charging Circuit)
387
Checking Engine Oil Pressure Lamp
388
Checking Engine Oil Pressure Switch Continuity
388
Checking Fuel Level Sensor Continuity
388
Checking Coolant Temperature Sensor Connector Voltage
389
Checking Coolant Temperature Sensor Continuity
389
Checking Hour Meter and Tachometer
390
Accessory
390
Checking DC Outlet Connector Voltage
390
Checking DC Outlet Continuity
390
Meter Panel
391
Checking Connector Voltage, Sensor Resistance and Switch
391
Disassembling and Assembling
391
Starter
391
Disassembling Starter Motor
391
Removing Magnet Switch
392
Removing Plunger
392
Alternator
392
Removing Pulley
392
Removing Brush Holder
393
Removing IC Regulator
393
Removing Rear End Cover
393
Removing Rear End Frame
393
Removing Rectifier
393
Checking Overrunning Clutch
394
Removing Bearing at Slip Ring Side
394
Removing Bearing on Drive End Side
394
Removing Retainer Plate
394
Servicing
394
Starter
394
Checking Brush Wear
395
Checking Commutator and Mica
395
Checking Armature Coil
396
Checking Brush Holder
396
Checking Field Coil
396
Alternator
397
Checking Bearing
397
Checking Rotor
397
Checking Slip Ring
397
Checking Stator
397
Checking Brush Wear
398
Checking Rectifier
398
Mower
399
Mechanism
400
Structure of Power Transmission of Mower
400
Structure of Lifting Mechanism of Mower
401
Structure of Self-Balancer System of Mower
402
Servicing
404
Troubleshooting for Mower
404
Servicing Specifications for Mower
405
Tightening Torques for Mower
406
Setting up Mower [RCK48-18BX, RCK54-23BX, and RCK60B-23BX]
407
Assembling Mower
407
Setting Mower
407
Installing Universal Joint
408
Mounting Front Link
408
Mounting Rear Link
408
Setting up Mower [RCK54D-26BX and RCK60D-26BX]
410
Assembling Mower
410
Mounting Front Link
410
Setting Mower
410
Mounting Frame Link
411
Mounting Mower
412
Setting Tractor
412
Checking and Adjusting
413
Adjusting Mower Link
413
Mower Adjustment
413
Adjusting Front and Rear Cutting Height
414
Adjusting Left and Right Cutting Height
415
Adjusting Self-Balance Suspended Linkage
416
Adjusting Cutting Height
417
Checking Mower Belt
418
Checking Mower Blade
418
Checking Mower Blade and Belt
418
Disassembling and Assembling
419
Removing Mower Blades
419
Removing Ramps and Belt Covers
419
Removing Universal Joint and Belt Cover
419
Removing Blade Boss
420
Removing Gear Box and Mower Belt
420
Disassembling Gear Box
421
Removing Center Pulley Holder
421
Removing Outer Pulley and Blade Shaft
422
Removing Balancer
423
Servicing
424
Adjusting Turning Torque of Pinion Shaft
424
Adjusting Backlash between Bevel Gears
424
4
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Kubota WSM BX2680 Specifications
General
Engine Type
Diesel
Transmission
Hydrostatic
Fuel Capacity
6.6 gal
Drive
4WD
Mower Deck Type
Mid-mount
Mower Deck Width
60 in
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