Kubota B2630HSD/B3030HSD/B3030HSDC Workshop Manual

About this manual

This OEM Kubota Workshop Manual provides workshop information for the tractors listed in Manual details in PDF format. It combines explanations of system construction and operation with practical servicing instructions, including troubleshooting.

The document is organised into Information, General, Mechanism, and Servicing sections, covering reference information and workshop procedures. Use Manual contents to find the system or task you need, and check Manual details for model coverage and publication information.

Manual details

Manufacturer

Kubota

Manual type

Workshop Manual

Equipment type

Tractor

Models

B2630HSD, B3030HSD, and B3030HSDC

Document number

9Y011-13294

Publication year

2005

Publication date

May, 2005

KiSC issue / revision

March 2014 (A)

Text search

Available

PDF navigation

Interactive contents links and PDF bookmarks

Document quality

High — clear, readable text, illustrations and diagrams.

Product highlights

Electrical systems

The manual includes wiring diagrams and 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, clearances, capacities, and dimensions.

Special tools

A special-tools section is included.

Applicability and limitations

For the diesel engine / tractor mechanism not included here, the reader refers to Workshop Manual (Code No. 9Y021-01872 / 9Y021-18200).

Manual contents

Use these source headings to locate the task or system you need in the PDF.

• TO THE READER — p. 2
• I INFORMATION — p. 3
  • INFORMATION — p. 4
    • 1. SAFETY FIRST — p. 5
    • 2. SAFETY DECALS — p. 8
    • 3. SPECIFICATIONS — p. 13
    • 4. TRAVELING SPEEDS — p. 15
    • 5. DIMENSIONS — p. 16
• G GENERAL — p. 18
  • GENERAL — p. 19
    • 1. TRACTOR IDENTIFICATION — p. 20
    • 2. GENERAL PRECAUTION — p. 21
    • 3. HANDLING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING — p. 22
      • [1] WIRING — p. 22
      • [2] BATTERY — p. 24
      • [3] FUSE — p. 24
      • [4] CONNECTOR — p. 24
      • [5] HANDLING OF CIRCUIT TESTER — p. 25
      • [6] COLOR OF WIRING — p. 26
    • 4. LUBRICANTS, FUEL AND COOLANT — p. 27
    • 5. TIGHTENING TORQUES — p. 29
      • [1] GENERAL USE SCREWS, BOLTS AND NUTS — p. 29
      • [2] STUD BOLTS — p. 29
    • 6. MAINTENANCE CHECK LIST — p. 30
    • 7. CHECK AND MAINTENANCE — p. 32
      • [1] DAILY CHECK — p. 32
      • [2] CHECK POINTS OF INITIAL 50 HOURS — p. 33
      • [3] CHECK POINTS OF EVERY 50 HOURS — p. 35
      • [4] CHECK POINTS OF EVERY 100 HOURS — p. 37
      • [5] CHECK POINTS OF EVERY 200 HOURS — p. 42
      • [6] CHECK POINTS OF EVERY 300 HOURS — p. 45
      • [7] CHECK POINTS OF EVERY 400 HOURS — p. 47
      • [8] CHECK POINTS OF EVRY 800 HOURS — p. 48
      • [9] CHECK POINT OF EVERY 1500 HOURS — p. 49
      • [10] CHECK POINTS OF EVERY 1 YEAR — p. 49
      • [11] CHECK POINTS OF EVERY 2 YEARS — p. 51
      • [12] OTHERS — p. 55
    • 8. SPECIAL TOOLS — p. 61
      • [1] SPECIAL TOOLS FOR ENGINE — p. 61
      • [2] SPECIAL TOOLS FOR TRACTOR — p. 67
      • [3] SPECIAL TOOLS FOR CABIN — p. 70
    • 9. TIRES — p. 73
      • [1] TIRE PRESSURE — p. 73
      • [2] TREAD — p. 74
        • (1) Front Wheels — p. 75
        • (2) Rear Wheels — p. 76
      • [3] TIRE LIQUID INJECTION AND BALLAST — p. 77
    • 10. IMPLIMENT LIMITATIONS — p. 80
• 1 ENGINE — p. 82
  • SERVICING — p. 83
    • 1. TROUBLESHOOTING — p. 84
    • 2. SERVICING SPECIFICATIONS — p. 87
    • 3. TIGHTENING TORQUES — p. 92
      • [1] TRACTOR SECTION — p. 92
      • [2] ENGINE SECTION — p. 92
    • 4. CHECKING, DISASSEMBLING AND SERVICING — p. 93
      • [1] CHECKING AND ADJUSTING — p. 93
        • (1) Engine Body — p. 93
        • (2) Lubricating System — p. 95
        • (3) Cooling System — p. 96
        • (4) Fuel System — p. 98
      • [2] PREPARATION — p. 102
        • (1) Preparation before Separating Cabin from Tractor Body (CABIN) — p. 102
        • (2) Separating Cabin from Tractor Body (CABIN) — p. 102
        • (3) Separating Engine and Front Case from Tractor (ROPS and CABIN) — p. 108
      • [3] DISASSEMBLING AND ASSEMBLING — p. 118
        • (1) External Components — p. 118
        • (2) Cylinder Head and Valve and Oil Pan — p. 118
        • (3) Gear Case — p. 122
        • (4) Piston and Connecting Rod — p. 125
        • (5) Crankshaft — p. 128
      • [4] SERVICING — p. 130
        • (1) Cylinder Head and Valves — p. 130
        • (2) Idle Gear and Camshaft — p. 136
        • (3) Piston and Connecting Rod — p. 139
        • (4) Crankshaft — p. 141
        • (5) Cylinder — p. 145
        • (6) Oil Pump — p. 146
• 2 TRANSMISSION — p. 147
  • MECHANISM — p. 148
    • 1. STRUCTURE — p. 149
    • 2. FRONT CASE — p. 150
    • 3. HYDROSTATIC TRANSMISSION — p. 151
      • [1] STRUCTURE — p. 151
      • [2] PUMP AND MOTOR — p. 153
      • [3] OIL FLOW AND VALVES — p. 154
      • [4] CONTROL LINKAGE — p. 161
    • 4. CRUISE CONTROL — p. 162
      • [1] CRUISE CONTROL LINKAGE — p. 162
        • (1) Cruise Control — p. 162
        • (2) Cruise Control Release — p. 163
    • 5. RANGE GEAR SHIFT SECTION — p. 164
    • 6. FRONT WHEEL DRIVE SECTION — p. 165
    • 7. PTO SYSTEM — p. 166
      • [1] STRUCTURE — p. 166
      • [2] REAR PTO SECTION — p. 167
      • [3] REAR PTO / MID-PTO SECTION — p. 168
      • [4] MID-PTO SECTION — p. 169
    • 8. DIFFERENTIAL GEAR SYSTEM — p. 171
      • [1] DIFFERENTIAL FUNCTION — p. 171
      • [2] DIFFERENTIAL LOCK — p. 172
  • SERVICING — p. 173
    • 1. TROUBLESHOOTING — p. 174
    • 2. SERVICING SPECIFICATIONS — p. 177
    • 3. TIGHTENING TORQUES — p. 179
    • 4. CHECKING, DISASSEMBLING AND SERVICING — p. 180
      • [1] CHECKING AND ADJUSTING (ROPS) — p. 180
        • (1) HST — p. 180
        • (2) Cruise Control — p. 184
      • [2] CHECKING AND ADJUSTING (CABIN) — p. 185
        • (1) HST — p. 185
        • (2) Cruise Control — p. 188
      • [3] PREPARATION (ROPS) — p. 189
        • (1) Separating Engine and Front Case — p. 189
        • (2) Removing Outer Parts from Transmission — p. 199
      • [4] PREPARATION (CABIN) — p. 202
        • (1) Preparation before Separating Cabin from Tractor Body — p. 202
        • (2) Separating Cabin from Tractor Body — p. 202
        • (3) Preparation — p. 202
      • [5] DISASSEMBLING AND ASSEMBLING (ROPS AND CABIN) — p. 202
        • (1) Front Case — p. 202
        • (2) Hydraulic Transmission (HST) — p. 204
        • (3) PTO Clutch Case — p. 214
        • (4) Bevel Pinion Shaft — p. 215
        • (5) Range Gear Shaft — p. 215
        • (6) Front Wheel Drive Shaft — p. 217
        • (7) Independent PTO Clutch Shifter — p. 218
        • (8) Independent PTO Clutch — p. 220
        • (9) Mid-PTO Section — p. 224
        • (10) Differential Gear Section — p. 226
      • [6] SERVICING (ROPS AND CABIN) — p. 228
        • (1) HST — p. 228
        • (2) Independent PTO Clutch — p. 232
        • (3) Transmission Case — p. 233
        • (4) Differential Gear — p. 234
• 3 REAR AXLE — p. 236
  • MECHANISM — p. 237
    • 1. STRUCTURE — p. 238
  • SERVICING — p. 239
    • 1. TROUBLESHOOTING — p. 240
    • 2. TIGHTENING TORQUES — p. 241
    • 3. CHECKING, DISASSEMBLING AND SERVICING — p. 242
      • [1] DISASSEMBLING AND ASSEMBLING — p. 242
      • [2] SERVICING — p. 244
• 4 BRAKES — p. 245
  • MECHANISM — p. 246
    • 1. FEATURE — p. 247
    • 2. OPERATION — p. 248
  • SERVICING — p. 249
    • 1. TROUBLESHOOTING — p. 250
    • 2. SERVICING SPECIFICATIONS — p. 251
    • 3. TIGHTENING TORQUES — p. 252
    • 4. CHECKING, DISASSEMBLING AND SERVICING — p. 253
      • [1] CHECKING AND ADJUSTING — p. 253
      • [2] DISASSEMBLING AND ASSEMBLING — p. 253
      • [3] SERVICING — p. 257
• 5 FRONT AXLE — p. 258
  • MECHANISM — p. 259
    • 1. STRUCTURE — p. 260
      • [1] 4 WHEEL DRIVE MODEL — p. 260
  • SERVICING — p. 261
    • 1. TROUBLESHOOTING — p. 262
    • 2. SERVICING SPECIFICATIONS — p. 263
    • 3. TIGHTENING TORQUES — p. 264
    • 4. CHECKING, DISASSEMBLING AND SERVICING — p. 265
      • [1] CHECKING AND ADJUSTING — p. 265
      • [2] DISASSEMBLING AND ASSEMBLING — p. 266
        • (1) Separating Front Axle Assembly — p. 266
        • (2) Disassembling Front Assembling — p. 267
      • [3] SERVICING — p. 273
• 6 STEERING — p. 276
  • MECHANISM — p. 277
    • 1. HYDRAULIC CIRCUIT — p. 278
    • 2. STEERING CONTROLLER — p. 279
    • 3. STEERING CYLINDER — p. 280
  • SERVICING — p. 281
    • 1. TROUBLESHOOTING — p. 282
    • 2. SERVICING SPECIFICATIONS — p. 283
    • 3. TIGHTENING TORQUES — p. 284
    • 4. CHECKING, DISASSEMBLING AND SERVICING — p. 285
      • [1] CHECKING — p. 285
        • (1) Relief Valve — p. 285
      • [2] DISASSEMBLING — p. 286
        • (1) Separating Power Steering Controller — p. 286
        • (2) Power Steering Controller — p. 287
        • (3) Power Steering Cylinder — p. 288
      • [3] SERVICING — p. 290
        • (1) Power Steering Cylinder — p. 290
• 7 HYDRAULIC SYSTEM — p. 291
  • MECHANISM — p. 292
    • 1. HYDRAULIC CIRCUIT — p. 293
    • 2. HYDRAULIC PUMP — p. 294
    • 3. HYDRAULIC BLOCK — p. 295
    • 4. POWER STEERING — p. 296
      • [1] HYDRAULIC CIRCUIT — p. 296
      • [2] POWER STEERING CONTROLLER — p. 297
      • [3] STEERING CYLINDER — p. 298
    • 5. INDEPENDENT PTO — p. 299
      • [1] HYDRAULIC CIRCUIT — p. 299
      • [2] INDEPENDENT PTO CONTROL VALVE — p. 299
      • [3] INDEPENDENT PTO CLUTCH — p. 300
      • [4] INDEPENDENT PTO LEVER “ENGAGED” — p. 301
      • [5] INDEPENDENT PTO LEVER “DISENGAGED” — p. 302
    • 6. THREE POINTS HYDRAULIC SYSTEM — p. 303
      • [1] HYDRAULIC CIRCUIT — p. 303
      • [2] RELIEF VALVE — p. 304
      • [3] POSITION CONTROL VALVE — p. 305
        • (1) Neutral — p. 306
        • (2) Lift — p. 306
        • (3) Shockless Mechanism Operating (Lift to Neutral) — p. 307
        • (4) Down — p. 307
      • [4] FEEDBACK LINKAGE FOR POSITION CONTROL — p. 308
  • SERVICING — p. 309
    • 1. TROUBLESHOOTING — p. 310
    • 2. SERVICING SPECIFICATIONS — p. 312
    • 3. TIGHTENING TORQUES — p. 314
    • 4. CHECKING, DISASSEMBLING AND ASSEMBLING — p. 315
      • [1] CHECKING AND ADJUSTING — p. 315
        • (1) Hydraulic Pump — p. 315
        • (2) Independent PTO Control Valve — p. 317
        • (3) 3-Points Hitch Relief Valve — p. 318
        • (4) Lift Arm — p. 319
      • [2] DISASSEMBLING AND ASSEMBLING — p. 320
        • (1) Hydraulic Pump — p. 320
        • (2) Power Steering Controller — p. 321
        • (3) Independent PTO Clutch — p. 322
        • (4) 3-Points Hitch: Hydraulic Cylinder Separating — p. 323
        • (5) 3-Points Hitch: Hydraulic Cylinder — p. 326
      • [3] SERVICING — p. 330
• 8 ELECTRICAL SYSTEM — p. 332
  • MECHANISM — p. 333
    • 1. WIRING DIAGRAM — p. 334
      • [1] ROPS — p. 334
      • [2] CABIN — p. 335
    • 2. ENGINE STARTING SYSTEM AND STOPPING SYSTEM — p. 336
      • [1] OPC SYSTEM CIRCUIT — p. 336
      • [2] SAFETY SWITCH — p. 336
        • (1) PTO Shift Lever Switch — p. 337
        • (2) Independent PTO Lever Switch — p. 338
        • (3) HST Pedal Switch — p. 339
        • (4) Seat Switch — p. 340
        • (5) Seat Tilt Switch — p. 341
      • [3] CONTROLLER — p. 342
      • [4] SAFETY SWITCH POSITION AND ENGINE CONDITION — p. 345
    • 3. LIGHTING SYSTEM — p. 346
      • [1] LIGHT AND TAIL LIGHT — p. 346
      • [2] TURNING LIGHT — p. 346
      • [3] HAZARD LIGHT — p. 347
    • 4. EASY CHECKER™ — p. 348
      • [1] INDICATION ITEMS — p. 348
  • SERVICING — p. 349
    • 1. TROUBLESHOOTING — p. 350
    • 2. SERVICING SPECIFICATIONS — p. 356
    • 3. TIGHTENING TORQUES — p. 357
    • 4. CHECKING, DISASSEMBLING AND SERVICING — p. 358
      • [1] CHECKING AND ADJUSTING — p. 358
        • (1) Battery — p. 358
        • (2) Main Switch — p. 360
        • (3) Key Stop Solenoid Relay — p. 362
        • (4) Glow Plug — p. 363
        • (5) Safety Switches — p. 364
        • (6) Starter — p. 374
        • (7) OPC Controller — p. 375
        • (8) AC Dynamo (for ROPS) — p. 375
        • (9) Regulator (for ROPS) — p. 376
        • (10) Alternator (for CABIN) — p. 376
        • (11) Combination Switch — p. 377
        • (12) Hazard Switch — p. 380
        • (13) Flasher Unit — p. 381
        • (14) Easy Checker™ — p. 382
        • (15) Gauges — p. 384
      • [2] DISASSEMBLING AND ASSEMBLING — p. 385
        • (1) Starter — p. 385
        • (2) AC Dynamo (for ROPS) — p. 385
        • (3) Alternator (for CABIN) — p. 386
      • [3] SERVICING — p. 388
        • (1) Starter — p. 388
        • (2) Alternator (for CABIN) — p. 389
• 9 CABIN — p. 391
  • MECHANISM — p. 392
    • 1. OUTLINE OF AIR CONDITIONING SYSTEM — p. 393
      • [1] STRUCTURE — p. 393
      • [2] AIR FLOW — p. 395
      • [3] AIR CONTROL VENT — p. 395
      • [4] CONTROL PANEL — p. 396
      • [5] OPERATION — p. 397
    • 2. REFRIGERATION SYSTEM — p. 401
      • [1] COMPRESSOR — p. 402
        • (1) Scroll Type Compressor — p. 402
        • (2) Pressure Relief Valve — p. 403
        • (3) Magnetic Clutch — p. 404
      • [2] CONDENSER — p. 405
      • [3] RECEIVER — p. 406
      • [4] AIR CONDITIONER UNIT — p. 407
        • (1) Expansion Valve — p. 407
        • (2) Evaporator — p. 408
        • (3) Heater Core — p. 409
        • (4) Water Valve — p. 409
        • (5) Blower — p. 410
    • 3. SYSTEM CONTROL — p. 411
    • 4. ELECTRICAL SYSTEM — p. 412
      • [1] ELECTRICAL CIRCUIT — p. 412
      • [2] BLOWER RELAY, COMPRESSOR RELAY, THERMO SWITCH AND PRESSURE SWITCH — p. 413
        • (1) Compressor Relay — p. 414
        • (2) Blower Switch — p. 415
        • (3) Thermo Switch — p. 416
        • (4) Pressure Switch — p. 417
  • SERVICING — p. 419
    • 1. TROUBLESHOOTING — p. 420
    • 2. SERVICING SPECIFICATIONS — p. 424
    • 3. TIGHTENING TORQUES — p. 425
    • 4. PRECAUTIONS AT REPAIRING REFRIGERANT CYCLE — p. 426
      • [1] HANDLING OF SERVICE TOOLS — p. 427
        • (1) Manifold Gauge Set — p. 427
        • (2) Refrigerant Charging Hose — p. 428
        • (3) Vacuum Pump Adaptor — p. 429
        • (4) Electric Gas Leak Tester — p. 429
        • (5) Can Tap Valve — p. 429
        • (6) T-joint — p. 430
        • (7) R134a Refrigerant Recovery and Recycling Machine — p. 430
    • 5. CHECKING AND CHARGING REFRIGERANT CYCLE — p. 431
      • [1] CHECKING WITH MANIFOLD GAUGE — p. 431
      • [2] DISCHARGING, EVACUATING AND CHARGING — p. 436
        • (1) Discharging the System — p. 436
        • (2) Evacuating the System — p. 437
        • (3) Charging the System — p. 438
        • (4) Checking Charging Refrigerant Amount — p. 440
    • 6. CHECKING, DISASSEMBLING AND SERVICING — p. 441
      • [1] CHECKING AND ADJUSTING — p. 441
        • (1) Compressor — p. 441
        • (2) Air Conditioner Unit — p. 441
        • (3) Front Windshield Wiper — p. 446
        • (4) Working Light — p. 447
      • [2] DISASSEMBLING AND ASSEMBLING — p. 447
        • (1) Separating Cabin from Tractor — p. 447
        • (2) Removing Compressor Assembly — p. 453
        • (3) Removing Receiver and Condenser — p. 455
        • (4) Removing Air Conditioner Unit — p. 458
        • (5) Cabin Windshield — p. 460
      • [3] SERVICING — p. 464
        • (1) Compressor — p. 464

Capabilities

The source outline separates mechanism explanations from servicing instructions for 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, and dimensions 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.

Delivery

This manual is supplied as a digital PDF file and is available for instant download after purchase. No physical media is shipped.

References

Kubota Workshop Manual for Tractor, document code 9Y011-13294, PDF edition.