Kubota B2650HSDC and B3350HSDC Workshop Manual
Document number 9Y111-08221 · English PDF edition · 485 pages
About this manual
Kubota published this Workshop Manual for the B2650HSDC and B3350HSDC tractor models. It brings the documented service and technical-reference material for those named tractors into a single publication.
Its documented technical value includes torque settings, wear limits, fluid and system capacities, dimensions, and emission data for service checks and specification lookup. Use the values and conditions stated in the PDF for the applicable model and procedure.
Use the Manual Contents below to check that the exact repair, inspection, or maintenance procedure you need is included in this publication.
Manual details
- Manufacturer
- Kubota
- Manual type
- Workshop Manual
- Models
- B2650HSDC and B3350HSDC
- Document number
- 9Y111-08221
- Language
- English
- Page count
- 485
Product highlights
Electrical systems
The manual includes electrical troubleshooting.
Hydraulic systems
The manual includes hydraulic pressure-test material and hydraulic valve-adjustment material.
Specifications and settings
The manual includes reference information for torque specifications, wear limits, capacities, dimensions, and emission specifications.
Special tools
A special-tools section is included.
Maintenance
The manual includes a lubrication chart.
Manual contents
Use these source headings to locate the task or system you need in the PDF.
- TO THE READER — p. 1
- I INFORMATION — p. 3
- INFORMATION — p. 4
- 1. SAFETY FIRST — p. 5
- 2. SAFETY DECALS — p. 8
- 3. SPECIFICATIONS — p. 12
- 4. TRAVELING SPEEDS — p. 13
- 5. DIMENSIONS — p. 14
- INFORMATION — p. 4
- G GENERAL — p. 15
- GENERAL — p. 16
- 1. TRACTOR IDENTIFICATION — p. 17
- [1] MODEL NAME AND SERIAL NUMBER — p. 17
- [2] CYLINDER NUMBER — p. 18
- 2. GENERAL PRECAUTIONS — p. 19
- 3. HANDLING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING — p. 20
- [1] WIRING — p. 20
- [2] BATTERY — p. 22
- [3] FUSE — p. 22
- [4] CONNECTOR — p. 22
- [5] HANDLING OF CIRCUIT TESTER — p. 23
- [6] COLOR OF WIRING — p. 24
- 4. LUBRICANTS, FUEL AND COOLANT — p. 25
- 5. TIGHTENING TORQUES — p. 27
- [1] GENERAL USE SCREWS, BOLTS AND NUTS — p. 27
- [2] STUD BOLTS — p. 27
- [3] METRIC SCREWS, BOLTS AND NUTS — p. 28
- [4] AMERICAN STANDARD SCREWS, BOLTS AND NUTS WITH UNC OR UNF THREADS — p. 28
- [5] PLUGS — p. 28
- 6. MAINTENANCE CHECK LIST — p. 29
- 7. CHECK AND MAINTENANCE — p. 31
- [1] DAILY CHECK — p. 31
- [2] CHECK POINTS OF INITIAL 50 HOURS — p. 35
- [3] CHECK POINTS OF EVERY 50 HOURS — p. 37
- [4] CHECK POINTS OF EVERY 100 HOURS — p. 38
- [5] CHECK POINTS OF EVERY 200 HOURS — p. 43
- [6] CHECK POINTS OF EVERY 300 HOURS — p. 46
- [7] CHECK POINTS OF EVERY 400 HOURS — p. 48
- [8] CHECK POINT OF EVERY 800 HOURS — p. 48
- [9] CHECK POINT OF EVERY 1500 HOURS — p. 48
- [10] CHECK POINT OF EVERY 3000 HOURS — p. 48
- [11] CHECK POINTS OF EVERY 1 YEAR — p. 49
- [12] CHECK POINTS OF EVERY 2 YEARS — p. 50
- [13] OTHERS — p. 52
- 8. SPECIAL TOOLS — p. 57
- [1] SPECIAL TOOLS FOR ENGINE — p. 57
- [2] SPECIAL TOOLS FOR TRACTOR — p. 65
- [3] SPECIAL TOOLS FOR CABIN — p. 69
- 9. TIRES — p. 72
- [1] TIRE PRESSURE — p. 72
- [2] TREAD ADJUSTMENT — p. 73
- (1) Front Wheels — p. 73
- (2) Rear Wheels — p. 73
- [3] BALLAST — p. 74
- [4] TIRE LIQUID INJECTION — p. 75
- 10. IMPLEMENT LIMITATIONS — p. 77
- 1. TRACTOR IDENTIFICATION — p. 17
- GENERAL — p. 16
- 1 ENGINE — p. 79
- MECHANISM — p. 80
- 1. ENGINE BODY — p. 81
- [1] CLOSED BREATHER — p. 81
- [2] HALF-FLOATING HEAD COVER — p. 81
- [3] ENGINE CONTROL SYSTEM [V1505-T-E4] — p. 82
- [4] ELECTRONIC GOVERNOR [V1505-T-E4] — p. 82
- [5] GOVERNOR [D1305-E4] — p. 83
- 2. REFORMER AND AFTER TREATMENT DEVICES — p. 85
- [1] REFORMING MECHANISM — p. 85
- [2] AFTER TREATMENT DEVICES — p. 86
- [3] DPF REGENERATION SYSTEM — p. 91
- (1) Regeneration Mode (Inhibit Version) — p. 91
- (2) Indicator and Switch Lamp (Inhibit Version) — p. 92
- (3) PM Warning Level (Inhibit Version) — p. 93
- (4) Regeneration Mode (Default Version) — p. 96
- (5) Indicator and Switch Lamp (Default Version) — p. 97
- (6) Warning Level (Default Version) — p. 98
- 1. ENGINE BODY — p. 81
- SERVICING — p. 101
- 1. TROUBLESHOOTING — p. 102
- 2. SERVICING SPECIFICATIONS — p. 106
- 3. TIGHTENING TORQUES — p. 112
- [1] TRACTOR SECTION — p. 112
- [2] ENGINE SECTION — p. 112
- 4. CHECKING, DISASSEMBLING AND SERVICING — p. 113
- [1] CHECKING AND ADJUSTING — p. 113
- (1) Engine Body — p. 113
- (2) Lubricating System — p. 116
- (3) Cooling System — p. 116
- (4) Fuel System — p. 118
- (5) Turbocharger (V1505-T-E4) — p. 121
- [2] DISASSEMBLING AND ASSEMBLING — p. 122
- (1) DPF Muffler — p. 122
- (2) Separating Engine from Clutch Housing — p. 123
- (3) Separating Engine from Front Axle Frame — p. 128
- (4) External Components — p. 129
- (5) Cylinder Head and Valve — p. 130
- (6) Gear Case and Timing Gears — p. 134
- (7) Piston and Connecting Rod — p. 138
- (8) Flywheel and Crankshaft — p. 141
- [3] SERVICING — p. 145
- (1) Cylinder Head and Valve — p. 145
- (2) Timing Gears, Camshaft and Governor Gear — p. 150
- (3) Piston and Connecting Rod — p. 153
- (4) Crankshaft — p. 156
- (5) Cylinder — p. 162
- (6) Oil Pump — p. 163
- [1] CHECKING AND ADJUSTING — p. 113
- MECHANISM — p. 80
- 2 TRANSMISSION — p. 164
- MECHANISM — p. 165
- 1. STRUCTURE — p. 166
- 2. FRONT CASE — p. 167
- 3. HYDROSTATIC TRANSMISSION — p. 168
- [1] STRUCTURE — p. 168
- [2] PUMP AND MOTOR — p. 170
- [3] OIL FLOW AND VALVES — p. 171
- [4] CONTROL LINKAGE — p. 178
- 4. CRUISE CONTROL — p. 179
- [1] CRUISE CONTROL LINKAGE — p. 179
- (1) Cruise Control — p. 179
- (2) Cruise Control Release — p. 180
- [1] CRUISE CONTROL LINKAGE — p. 179
- 5. RANGE GEAR SHIFT SECTION — p. 181
- 6. FRONT WHEEL DRIVE SECTION — p. 182
- 7. PTO SYSTEM — p. 183
- [1] STRUCTURE — p. 183
- [2] REAR PTO SECTION — p. 184
- [3] REAR PTO / MID-PTO SECTION — p. 185
- [4] MID-PTO SECTION — p. 186
- [5] INDEPENDENT PTO — p. 187
- (1) Hydraulic Circuit — p. 187
- (2) Independent PTO Control Valve — p. 188
- (3) Independent PTO Clutch — p. 189
- (4) Independent PTO Lever "Engaged" — p. 190
- (5) Independent PTO Lever "Disengaged" — p. 191
- 8. DIFFERENTIAL GEAR SYSTEM — p. 192
- [1] DIFFERENTIAL FUNCTION — p. 192
- [2] DIFFERENTIAL LOCK — p. 193
- SERVICING — p. 194
- 1. TROUBLESHOOTING — p. 195
- 2. SERVICING SPECIFICATIONS — p. 199
- 3. TIGHTENING TORQUES — p. 201
- 4. CHECKING, DISASSEMBLING AND SERVICING — p. 202
- [1] CHECKING AND ADJUSTING — p. 202
- (1) HST — p. 202
- (2) Independent PTO Control Valve — p. 206
- [2] PREPARATION — p. 207
- (1) Separating Cabin From Tractor — p. 207
- [3] DISASSEMBLING AND ASSEMBLING — p. 212
- (1) Separating Engine and Clutch Housing — p. 212
- (2) Front Case — p. 213
- (3) Hydraulic Transmission (HST) — p. 214
- (4) PTO Clutch Case — p. 224
- (5) Bevel Pinion Shaft — p. 225
- (6) Range Gear Shaft — p. 225
- (7) Front Wheel Drive Shaft — p. 227
- (8) Independent PTO Clutch Shifter — p. 228
- (9) Independent PTO Clutch — p. 230
- (10) Mid-PTO Section — p. 234
- (11) Differential Gear Section — p. 236
- [4] SERVICING — p. 238
- (1) HST — p. 238
- (2) Independent PTO Clutch — p. 241
- (3) Transmission Case — p. 242
- (4) Differential Gear — p. 243
- [1] CHECKING AND ADJUSTING — p. 202
- MECHANISM — p. 165
- 3 REAR AXLE — p. 246
- MECHANISM — p. 247
- 1. STRUCTURE — p. 248
- SERVICING — p. 249
- 1. TROUBLESHOOTING — p. 250
- 2. TIGHTENING TORQUES — p. 251
- 3. DISASSEMBLING AND SERVICING — p. 252
- [1] DISASSEMBLING AND ASSEMBLING — p. 252
- (1) Separating Rear Axle Case — p. 252
- (2) Disassembling Rear Axle Case — p. 254
- [2] SERVICING — p. 255
- [1] DISASSEMBLING AND ASSEMBLING — p. 252
- MECHANISM — p. 247
- 4 BRAKES — p. 256
- MECHANISM — p. 257
- 1. LINKAGE — p. 258
- 2. OPERATION — p. 259
- SERVICING — p. 260
- 1. TROUBLESHOOTING — p. 261
- 2. SERVICING SPECIFICATIONS — p. 262
- 3. TIGHTENING TORQUES — p. 263
- 4. CHECKING, DISASSEMBLING AND SERVICING — p. 264
- [1] CHECKING AND ADJUSTING — p. 264
- [2] DISASSEMBLING AND ASSEMBLING — p. 264
- (1) Brake Pedal — p. 264
- (2) Separating Rear Axle Case — p. 266
- (3) Disassembling Rear Axle Case — p. 268
- [3] SERVICING — p. 269
- MECHANISM — p. 257
- 5 FRONT AXLE — p. 270
- MECHANISM — p. 271
- 1. STRUCTURE — p. 272
- [1] 4 WHEEL DRIVE MODEL — p. 272
- 1. STRUCTURE — p. 272
- SERVICING — p. 273
- 1. TROUBLESHOOTING — p. 274
- 2. SERVICING SPECIFICATIONS — p. 275
- 3. TIGHTENING TORQUES — p. 276
- 4. CHECKING, DISASSEMBLING AND SERVICING — p. 277
- [1] CHECKING AND ADJUSTING — p. 277
- [2] DISASSEMBLING AND ASSEMBLING — p. 278
- (1) Separating Front Axle Assembly — p. 278
- (2) Disassembling Front Assembly — p. 280
- [3] SERVICING — p. 286
- MECHANISM — p. 271
- 6 STEERING — p. 290
- MECHANISM — p. 291
- 1. HYDRAULIC CIRCUIT — p. 292
- 2. STEERING CONTROLLER — p. 293
- 3. STEERING CYLINDER — p. 294
- 4. HYDRAULIC PUMP — p. 295
- SERVICING — p. 296
- 1. TROUBLESHOOTING — p. 297
- 2. SERVICING SPECIFICATIONS — p. 298
- 3. TIGHTENING TORQUES — p. 299
- 4. CHECKING, DISASSEMBLING AND SERVICING — p. 300
- [1] CHECKING AND ADJUSTING — p. 300
- (1) Relief Valve — p. 300
- (2) Hydraulic Pump for Power Steering — p. 301
- [2] DISASSEMBLING — p. 301
- (1) Separating Power Steering Controller — p. 301
- (2) Power Steering Cylinder — p. 303
- [3] SERVICING — p. 305
- (1) Power Steering Cylinder — p. 305
- [1] CHECKING AND ADJUSTING — p. 300
- MECHANISM — p. 291
- 7 HYDRAULIC SYSTEM — p. 306
- MECHANISM — p. 307
- 1. HYDRAULIC CIRCUIT — p. 308
- 2. HYDRAULIC PUMP — p. 309
- 3. THREE POINTS HYDRAULIC SYSTEM — p. 310
- [1] HYDRAULIC CIRCUIT — p. 310
- [2] FRONT LOADER CONTROL VALVE — p. 310
- (1) Structure — p. 310
- (2) Operation — p. 311
- [3] RELIEF VALVE — p. 318
- [4] POSITION CONTROL VALVE — p. 319
- (1) Neutral — p. 320
- (2) Lift — p. 320
- (3) Shockless Mechanism Operating (Lift to Neutral) — p. 321
- (4) Down — p. 321
- [5] FEEDBACK LINKAGE FOR POSITION CONTROL — p. 322
- SERVICING — p. 323
- 1. TROUBLESHOOTING — p. 324
- 2. SERVICING SPECIFICATIONS — p. 325
- 3. TIGHTENING TORQUES — p. 326
- 4. CHECKING, DISASSEMBLING AND SERVICING — p. 327
- [1] CHECKING AND ADJUSTING — p. 327
- (1) Hydraulic Pump for 3-Point Hitch Hydraulic System — p. 327
- (2) Relief Valve — p. 328
- (3) Lift Arm — p. 328
- [2] PREPARATION — p. 329
- (1) Hydraulic Pump — p. 329
- (2) Hydraulic Cylinder and Control Valve — p. 330
- (3) Removing Front Loader Control Valve Assembly — p. 334
- [3] DISASSEMBLING AND ASSEMBLING — p. 335
- (1) Hydraulic Pump — p. 335
- (2) Hydraulic Cylinder — p. 336
- (3) Hydraulic Control Valve — p. 338
- (4) Disassembling Front Loader Control Valve and Relief Valve — p. 339
- [4] SERVICING — p. 340
- [1] CHECKING AND ADJUSTING — p. 327
- MECHANISM — p. 307
- 8 ELECTRICAL SYSTEM — p. 342
- MECHANISM — p. 343
- 1. ELECTRICAL CIRCUIT — p. 344
- [1] B2650 — p. 344
- [2] B3350 (Inhibit Version) — p. 345
- [3] B3350 (Default Version) — p. 346
- 2. ENGINE STARTING SYSTEM AND STOPPING SYSTEM — p. 347
- [1] OPC SYSTEM CIRCUIT (B2650) — p. 347
- [2] OPC SYSTEM CIRCUIT (B3350) — p. 348
- [3] CONTROLLER (B2650) — p. 348
- [4] SAFETY SWITCH — p. 351
- (1) PTO Shift Lever Switch — p. 351
- (2) Independent PTO Lever Switch — p. 352
- (3) HST Pedal Switch — p. 352
- (4) Seat Switch — p. 353
- (5) Parking Brake Switch — p. 353
- [5] SAFETY SWITCH POSITION AND ENGINE CONDITION — p. 353
- 3. LIGHTING SYSTEM — p. 354
- [1] LIGHT AND TAIL LIGHT — p. 354
- [2] TURNING LIGHT — p. 354
- [3] HAZARD LIGHT — p. 355
- 4. EASY CHECKER™ — p. 356
- [1] INDICATION ITEMS — p. 356
- 5. DIGITAL DISPLAY — p. 357
- [1] LCD MONITOR INDICATOR — p. 357
- 1. ELECTRICAL CIRCUIT — p. 344
- SERVICING — p. 360
- 1. TROUBLESHOOTING — p. 362
- 2. SERVICING SPECIFICATIONS — p. 367
- 3. TIGHTENING TORQUES — p. 368
- 4. CHECKING AND ADJUSTING — p. 369
- [1] BATTERY — p. 369
- [2] FUSE — p. 371
- [3] ECU AND METER PANEL — p. 372
- (1) Engine ECU (B3350) — p. 372
- (2) Meter Panel — p. 374
- [4] STARTING SYSTEM — p. 377
- (1) Main Switch — p. 377
- (2) Safety Switches — p. 380
- (3) Starter — p. 383
- (4) Glow Plug — p. 383
- (5) OPC Controller (B2650) — p. 384
- (6) Key Stop Solenoid — p. 385
- [5] ENGINE CONTROL SYSTEM — p. 386
- (1) Fuel Pump (B3350) — p. 386
- (2) Fuel Pump (for Reformer) — p. 387
- (3) Exhaust Temperature Sensor (B3350) — p. 388
- (4) Differential Pressure Sensor — p. 389
- (5) Accelerator Lever Sensor — p. 390
- (6) Parked Regeneration Switch — p. 391
- (7) Auto Regeneration Switch (Inhibit Version) — p. 392
- (8) DPF INHIBIT Switch (Default Version) — p. 393
- (9) Blower Motor — p. 394
- (10) Air Valve — p. 395
- (11) Engine Speed Sensor (B3350) — p. 396
- (12) Heater Glow (V1505) — p. 397
- (13) Burner Glow (V1505) — p. 398
- (14) Governor Solenoid (V1505) — p. 399
- (15) Rack Sensor — p. 400
- [6] CHARGING SYSTEM — p. 401
- (1) Alternator — p. 401
- [7] LIGHTING SYSTEM — p. 402
- (1) Combination Switch — p. 402
- (2) Hazard Switch — p. 404
- (3) Flasher Unit — p. 405
- (4) Work Light Switch — p. 406
- (5) Room Lamp — p. 407
- [8] WARNING LAMP, INDICATOR LAMP AND GAUGE — p. 408
- (1) Engine Oil Pressure Switch — p. 408
- (2) Coolant Temperature Sensor — p. 408
- (3) Fuel Sensor — p. 409
- [9] RELAY — p. 410
- [10] OTHER SWITCHES — p. 414
- (1) Panel Mode Switch — p. 414
- (2) Defogger Switch — p. 414
- [11] ACCELERATOR SENSOR CALIBRATION (for B3350) — p. 416
- 5. DISASSEMBLING AND ASSEMBLING — p. 417
- [1] STARTER — p. 417
- [2] ALTERNATOR — p. 417
- 6. SERVICING — p. 420
- [1] STARTER — p. 420
- [2] ALTERNATOR — p. 421
- MECHANISM — p. 343
- 9 CABIN — p. 422
- MECHANISM — p. 423
- 1. AIR CONDITIONER SYSTEM — p. 424
- [1] OUTLINE OF AIR CONDITIONING SYSTEM — p. 424
- 2. REFRIGERATION SYSTEM — p. 426
- [1] COMPRESSOR — p. 426
- (1) Pressure Relief Valve — p. 427
- (2) Magnetic Clutch — p. 428
- [2] CONDENSER — p. 429
- [3] RECEIVER — p. 430
- [4] AIR CONDITIONER UNIT — p. 431
- [1] COMPRESSOR — p. 426
- 3. SYSTEM CONTROL — p. 432
- 4. ELECTRICAL SYSTEM — p. 433
- [1] ELECTRICAL CIRCUIT — p. 433
- [2] RELAY — p. 434
- 1. AIR CONDITIONER SYSTEM — p. 424
- SERVICING — p. 436
- 1. TROUBLESHOOTING — p. 437
- 2. SERVICING SPECIFICATIONS — p. 441
- 3. TIGHTENING TORQUES — p. 442
- 4. PRECAUTIONS AT REPAIRING REFRIGERANT CYCLE — p. 443
- [1] HANDLING OF SERVICE TOOLS — p. 445
- (1) Manifold Gauge Set — p. 445
- (2) Refrigerant Charging Hose — p. 446
- (3) Vacuum Pump Adaptor — p. 447
- (4) Electric Gas Leak Tester — p. 447
- (5) Can Tap Valve — p. 447
- (6) T-joint — p. 448
- (7) R134a Refrigerant Recovery and Recycling Machine — p. 448
- [1] HANDLING OF SERVICE TOOLS — p. 445
- 5. CHECKING AND CHARGING REFRIGERANT CYCLE — p. 449
- [1] CHECKING WITH MANIFOLD GAUGE — p. 449
- [2] DISCHARGING, EVACUATING AND CHARGING — p. 453
- (1) Discharging the Refrigerant — p. 453
- (2) Evacuating the System — p. 454
- (3) Charging the Refrigerant — p. 455
- (4) Checking Charge Refrigerant Amount — p. 457
- 6. CHECKING, DISASSEMBLING AND SERVICING — p. 458
- [1] CHECKING AND ADJUSTING — p. 458
- (1) Compressor — p. 458
- (2) Control Panel (Blower Switch, A/C Switch, Mode Control Dial and Temperature Control Dial) — p. 459
- (3) Blower Resistor — p. 461
- (4) Blower Motor — p. 462
- (5) Temperature Motor — p. 462
- (6) Mode Motor — p. 463
- (7) Air Conditioner Relay and Blower Relay — p. 463
- (8) Pressure Switch — p. 464
- (9) Wiper Switch — p. 465
- (10) Wiper Motor — p. 466
- (11) Defogger — p. 466
- [2] DISASSEMBLING AND ASSEMBLING — p. 468
- (1) Separating Cabin from Tractor Body — p. 468
- (2) Removing Compressor Assembly — p. 472
- (3) Removing Air Conditioner Unit — p. 474
- (4) Removing Air Conditioner Pipes — p. 475
- (5) Removing Heater Hoses — p. 477
- (6) Cabin Windshields — p. 478
- (7) Wiper Motor — p. 482
- [3] SERVICING — p. 483
- [1] CHECKING AND ADJUSTING — p. 458
- MECHANISM — p. 423
Capabilities
The source outline separates mechanism explanations from servicing instructions for Engine, Transmission, Rear Axle, Brakes, Front Axle, Steering, Hydraulic System, Electrical System, and Cabin. Use these indexed headings to locate the applicable system in the source PDF, then confirm model-specific notes, specifications, illustrations, and operating conditions at the relevant page before carrying out service work.
Keep the source's safety sequence, prerequisite steps, labels, units, configuration notes, and footnotes with the selected task; do not apply an isolated value outside the conditions stated in the manual.
Technical reference
Reference tables include torque settings, wear limits, fluid and system capacities, dimensions, and emission data for service checks, adjustment work, and specification lookup. Use the values and conditions in the PDF for the applicable model and procedure.
- Service limits and settings: torque settings and wear limits.
- Fluid reference: fluid and system capacities.
- Machine specifications: dimensions.
- Electrical and emissions: emission data.
Delivery
This manual is supplied as a digital PDF file and is available for instant download after purchase. No physical media is shipped.
No questions found.