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BX1860
Kubota BX1860 Workshop Manual
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BX1860,BX2360,BX2660,
RCK48-18BX,RCK54-23BX,
RCK60B-23BX,RCK48P-18BX,
RCK54P-23BX,LA203,LA243
WORKSHOP MANUAL
TRACTOR,ROTARY MOWER,
FRONT LOADER
KiSC issued 06, 2009 A
2
Table of Contents
General
15
Default Chapter
7
Safety Decals
7
Specifications
11
Traveling Speeds
12
Table of Contents
15
1 Tractor Identification
16
Serial Number
16
Cylinder Number
16
2 General Precautions
17
3 Handling Precautions for Electrical Parts and Wiring
18
Wiring
18
Battery
20
Fuse
20
Connector
20
Handling of Circuit Tester
21
4 Lubricants, Fuel and Coolant
22
5 Tightening Torques
24
General Use Screws, Bolts and Nuts
24
Stud Bolts
24
American Standard Screws, Bolts and Nuts with Unc or Unf Threads
25
Plugs
25
6 Maintenance Check List
26
7 Check and Maintenance
27
Daily Check
27
Check Points of Initial 50 Hours
28
Check Points of Every 50 Hours
30
Check Points of Every 100 Hours
32
Check Points of Every 200 Hours
37
Check Points of Every 400 Hours
39
Check Point of Every 500 Hours
40
Check Point of Every 800 Hours
40
Check Point of Every 1500 Hours
40
Check Point of Every 3000 Hours
40
Check Point of Every 1 Year
40
Check Points of Every 2 Years
41
Others
45
8 Special Tools
47
Special Tools for Engine
47
Special Tools for Tractor
52
9 Tires
56
Tire Pressure
56
Wheel Tread
57
Front Wheels
57
Rear Wheels
58
Ballast
59
Front Ballast
59
Rear Ballast
60
10 Implement Limitations
61
Servicing
65
1 Troubleshooting
66
2 Servicing Specifications
69
Bx1860, Bx2360
69
Bx2660
75
3 Tightening Torques
80
4 Checking, Disassembling and Servicing
82
Checking and Adjusting
82
Engine Body
82
Lubricating System
84
Cooling System
85
Fuel System
87
Disassembling and Assembling
91
Separating Engine
91
Cylinder Head and Valves
94
Removing Outer Parts
94
Gear Case and Timing Gears
98
Piston and Connecting Rod
102
Flywheel and Crankshaft
104
Servicing
106
Cylinder Head and Valves
106
Timing Gears, Camshaft and Governor Gear
114
Piston and Connecting Rod
118
Crankshaft
122
Cylinder
130
Oil Pump (BX1860, BX2360)
131
Oil Pump (BX2660)
132
Mechanism
134
1 Structure
135
2 Traveling System
136
Hydrostatic Transmission
136
Structure
136
Oil Flow
137
HST Control Linkage
142
Speed Set Linkage
143
Range Gear Shift Section
145
Front Wheel Drive Section
145
Differential Gear Section
146
Differential Gears
146
Differential Lock
147
Brake Section
148
3 Pto System
149
Pto Clutch and Valve
149
MID and Rear Pto Section
152
4 Others
153
Hydraulic Pump Drive Gear Section
153
Servicing
154
Troubleshooting
155
Servicing Specifications
159
Tightening Torques
161
Checking, Disassembling and Servicing
162
Checking and Adjusting
162
Preparation
170
Separating Transaxle
170
Disassembling and Assembling
178
Hydrostatic Transmission
178
Hydraulic Cylinder
184
Transaxle Shafts
185
Assembling Shafts
193
Servicing
195
Hydrostatic Transmission
195
Transaxle Case
197
Front Axle
202
Front Wheel Alignment
205
Servicing
207
Troubleshooting
208
Servicing Specifications
209
Tightening Torques
210
Checking, Disassembling and Servicing
211
Checking and Adjusting
211
Preparation
212
Separating Front Axle Assembly
212
Disassembling and Assembling
215
Front Axle Assembly
215
Servicing
219
Steering Cylinder
226
Servicing
227
Troubleshooting
228
Servicing Specifications
229
Tightening Torques
230
Checking, Disassembling and Servicing
231
Checking
231
Relief Valve
231
Preparation
231
Separating Power Steering Controller
231
Power Steering Cylinder
233
Separating Power Steering Cylinder
233
Servicing
236
Hydraulic System
237
Mechanism
238
Hydraulic Circuit
239
Hydraulic Pump
240
Control Valve
241
Flow Priority Valve
244
Relief Valve
245
Hydraulic Cylinder
247
Hydraulic Block Type Outlet
248
Mower Linkage
249
Servicing
250
Troubleshooting
251
Servicing Specifications
252
Tightening Torques
253
Checking, Disassembling and Servicing
254
Checking and Adjusting
254
Relief Valve
254
Pump and Priority Valve
255
Mower Lift Linkage
256
Preparation
257
Separating Hydraulic Cylinder
257
Separating Hydraulic Pump
260
Disassembling and Assembling
264
Hydraulic Cylinder and Control Valve
264
Mower Lift Linkage
266
Servicing
267
Hydraulic Pump
267
Hydraulic Cylinder
268
Electrical System
269
Mechanism
270
1 Wiring Diagram
271
2 Starting System
273
Main Switch Position
273
Safety Switch
274
Operator Presence Control (Opc)
275
3 Charging System
276
Electrical Circuit
276
IC Regulator (3P Connector Type)
277
4 Lighting System
278
5 Gauges
279
Electrical Circuit
279
Hour and Tachometer
280
Fuel Level Gauge
280
Water Temperature Gauge
280
6 Others
281
DC Outlet
281
Servicing
282
2 Servicing Specifications
287
3 Tightening Torques
288
4 Checking, Disassembling and Servicing
289
Checking and Adjusting
289
Battery
289
Main Switch
291
Glow Plug
292
Starter
292
Safety Switch
293
Operator Presence Control (OPC) Switch
295
Engine Stop Solenoid
297
Fuel Pump
297
Timer Relay
297
Alternator
298
Charging System
298
Combination Switch
300
Gauge
307
DC Outlet
309
Disassembling and Assembling
310
Alternator
310
Starter
310
Servicing
311
Starter
311
Alternator
313
General
319
1 Mower Identification
320
2 Lubricants
321
3 Tightening Torques
322
4 Maintenance Check List
324
5 Check and Maintenance
325
Check Points of Daily or each Use
325
Check Point of Initial 50 Hours
327
Check Point of Every 150 Hours
327
Check Point of Every 2 Years
328
6 Setting up Mower
329
7 Mower Adjustment
332
Power Transmission
337
Servicing
340
2 Servicing Specifications
342
3 Tightening Torques
343
4 Checking, Disassembling and Servicing
344
Checking and Adjusting
344
Disassembling and Assembling
345
Servicing
351
General
358
1 Identification
359
2 General Precaution
360
3 Lubricants
361
4 Tightening Torques
362
General Use Screws, Bolts and Nuts (for Front Loader and Backhoe)
362
Stud Bolts
362
American Standard Screws, Bolts and Nuts with Unc or Unf Threads
363
Hydraulic Fittings
364
Tightening Torques of Screws, Bolts and Nuts on the Table below Are Especially Specified
364
5 Maintenance Check List
365
6 Check and Maintenance
366
Check Points of each Use or Daily
366
Check Points of Every 10 Hours
366
7 Dismounting and Mounting Front Loader from Tractor 8-G9
367
Dismounting Front Loader from Tractor
367
Mounting Front Loader to Tractor
368
Hydraulic Circuit Schematic
370
Control Valve Assembly
371
Structure
371
Operation
372
Boom Cylinder and Bucket Cylinder
379
Servicing Specifications
382
Tightening Torques
383
Checking, Disassembling and Servicing
384
Checking and Adjusting
384
Control Valve
384
Bucket, Boom and Hydraulic Cylinders
387
Side Frames, Front Guard and Main Frames
389
Servicing
390
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Operator's Manual
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Kubota BX1860 Specifications
General
Engine Power
18 hp
Transmission
Hydrostatic
Drive
4WD
Hydraulic System Type
Open center
PTO Power
13.5 hp
Engine Type
Diesel
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