Kubota B2910 User Manual

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G GENERAL

82410·

82710·

82910 WSM,

12271

Replacing Light Bulb

1.

Head lights.

Take the bulb out of the light body and replace with a new one.

2.

Other lights

Detach the lens and replace the bulb.

Light

Capacity

Head lights

23W

Taillight

8W

Turn signal/Hazard light

27W

Illumination

1.7W

Hazard light indicator

0.6W

12270G00300

G-30

Table of Contents

Safety Instructions3
Avoid Fires4
Safety Starting4
Safety Working4
Dispose of Fluids Properly5
Prepare for Emergencies5
Prevent Acid Burns5
Ventilate Work Area5
Safety Decals6
Specifications (82410)9
Specifications (82710-82910)10
Travelling Speed11
Dimensions12
Table of Contents14
General14
Features16
Tractor Identification17
General Precautions18
Handling Precautions for Electrical Parts and Wiring18
- Wiring19
- Battery20
- Fuse21
- Connector21
- Handling of Circuit Tester22
Lubricants, Fuel and Coolant23
Tightening Torques24
- General Use Screws, Bolts and Nuts24
- Stud Bolts24
Maintenance25
Check and Maintenance26
- Daily Check26
- Check Points of Initial 50 Hours27
- Check Points of Every 50 Hours31
- Check Points of Every 100 Hours34
- Check Points of Every 200 Hours37
- Check Points of Every 300 Hours39
  - Checking Intake Air Line39
  - Adjusting Toe-In39
- Check Points of Every 400 Hours40
- Check Points of Every 800 Hours41
- Check Points of Every 1500 Hours41
- Check Points of Every 3000 Hours41
- Check Points of Every 2 Years42
- Others43
Implement Limitations62
- Mechanism64
- 1-M166
- Cylinder Block66
- ENGINE Body 1-M166
- 1-M267
- Cylinder Head67
- 1-M368
- Crankshaft68
- Piston and Piston Rings 1-M368
- 1-M469
- Connecting Rod 1-M469
- Fuel Camshaft 1-M469
- Intake and Exhaust Valve 1-M570
- Rocker Arm 1-M570
- Valve Timing 1-M570
- 1-M671
- Air Cleaner 1-M671
  - Flywheel71
  - Muffler71
- Lubricating System 1-M772
- 1-M873
- Oil Pump73
- Relief Valve 1-M873
- 1-M974
- Oil Filter Cartridge74
- Oil Pressure Switch 1-M974
- COOLING System 1-M1075
- Water Pump 1-M175
- 1-M1176
  - Radiator76
  - Thermostat76
- 1-M1277
- Fuel Line77
- FUEL System 1-M1277
- Radiator Cap77
- 1-M1378
- Fuel Filter78
- 1-M1479
- Fuel Feed Pump79
- 1-M1580
  - Fuel Delivery80
  - Injection Control80
  - Injection Pump80
  - No Fuel Delivery (Engine Stop)80
  - Delivery Valve81
  - Dumping Valve81
  - Pump Element81
- 1-M1782
  - Governor82
  - Injection Nozzle82
  - At High Speed Running with Overload83
  - At Idling83
  - At Start83
  - During Overload83
  - Servicing84
  - Either White or Blue Exhaust Gas Is Observed86
  - Engine Does Not Start86
  - Engine Revolution Is Not Smooth86
- Troubleshooting86
  - Deficient Output87
  - Excessive Lubricant Oil Consumption87
  - Fuel Mixed into Lubricant Oil87
  - Low Oil Pressure87
  - Engine Overheated88
- Servicing Specifications 1-S489
- Tightening Torques95
- Checking, Disassembling and Servicing 1-S1196
- Draining Coolant, Engine Oil and Transmission Fluid 1-S1196
- Separating Engine96
  - Draining Transmission Fluid97
  - Hood, Side Cover and Battery Cord97
  - Meter Panel and Panel under Cover98
  - Steering Wheel98
  - Bi-Speed Turn Cable99
  - Fuel Tank99
  - Drag Link100
  - Propeller Shaft Cover and Coupling100
  - Universal Joint and Bearing Holder100
  - Outer Parts101
  - Separating Front Axle Assembly101
  - Separating the Engine from Clutch Housing101
  - Checking and Adjusting102
  - Compression Pressure102
- Engine Body102
  - Top Clearance102
  - Valve Clearance103
  - Cylinder Head and Valves104
  - Cylinder Head Cover and Injection Pipes104
  - Disassembling and Assembling104
  - Dynamo, Fan Belt and Muffler104
  - Nozzle Heat Seal Service Removal Procedure105
  - Rocker Arm and Push Rod105
  - Tappets106
  - Fan Drive Pulley107
  - Timing Gears, Camshaft and Fuel Camshaft107
  - Valves107
  - Fuel Pump, Hour Meter Gear Case and Water Pump108
  - Gear Case108
  - Speed Control Plate108
  - Governor Shaft110
  - Camshaft and Idle Gear 1111
  - Fork Lever111
  - Connecting Rod Cap112
  - Oil Pan and Oil Strainer112
  - Piston and Connecting Rod112
  - Pistons113
  - Piston Ring and Connecting Rod114
  - Bearing Case Cover115
  - Crankshaft Assembly115
  - Cylinder Head Surface Flatness116
  - Main Bearing Case Assembly116
  - Clearance between Valve Stem and Valve Guide117
  - Cylinder Head Flaw117
  - Valve Recessing117
  - Replacing Valve Guide118
  - Valve Seating118
  - Correcting Valve and Valve Seat119
  - Valve Lapping119
  - Free Length and Tilt of Valve Spring120
  - Oil Clearance between Rocker Arm and Rocker Arm Shaft120
  - Valve Spring Setting Load120
  - Oil Clearance between Tappet and Tappet Guide Bore121
  - Push Rod Alignment121
  - Timing Gear Backlash122
  - Camshaft Alignment123
  - Camshaft Side Clearance123
  - Idle Gear 2 Side Clearance (V1305, V1505)123
  - Idle Gear Side Clearance123
  - Cam Height124
  - Oil Clearance between Idle Gear Shaft and Idle Gear Bushing124
  - Oil Clearance of Camshaft Journal124
  - Oil Clearance between Piston Pin and Small End Bushing125
  - Piston Pin Bore 1.0.125
  - Replacing Idle Gear Bushing125
  - Piston Ring Gap126
  - Replacing Small End Bushing126
  - Clearance between Piston Ring and Piston Ring Groove127
  - Connecting Rod Alignment127
  - Crankshaft Alignment128
  - Crankshaft Side Clearance128
  - Oil Clearance between Crankpin and Crankpin Bearing129
  - Oil Clearance between Crankshaft Journal and Crankshaft Bearing 1130
  - Replacing Crankshaft Bearing 1130
  - Oil Clearance between Crankshaft Journal and Crankshaft Bearing 2 (Crankshaft Bearing 3)131
  - Cylinder Wear132
  - Correcting Cylinder133
- Checking134
  - Clearance between Outer Rotor and Pump Body134
  - Engine Oil Pressure134
- Lubricating System 1-S49134
- Rotor Lobe Clearance134
- Checking and Adjusting135
- Clearance between Rotor and Cover135
- Cooling System135
  - Fan Belt Damage and Wear135
  - Fan Belt Tension135
  - Radiator Water Leakage135
  - Radiator Cap Air Leakage136
  - Thermostat Assembly136
  - Water Pump Assembly136
  - Thermostat Valve Opening Temperature137
- Fuel System138
- Injection Pump 1-S53138
  - Injection Timing138
  - Fuel Tightness of Delivery Valve139
  - Fuel Tightness of Pump Element139
  - Fuel Injection Pressure140
- Injection Nozzle 1-S55140
  - Nozzle Spraying Condition140
  - Nozzle Holder141
  - Valve Seat Tightness141
  - Linkage Mechanism145
  - Clutch "Disengaged"146
  - Clutch "Engaged"146
  - Operation146
- Checking and Adjusting152
- Checking, Disassembling and Servicing152
- Disassembling and Assembling153
- Separating Engine from Clutch Housing153
- 2-S8157
- Separating Clutch Assembly157
- 2-S9158
  - Structure162
  - (1 )-1 Structure164
  - Hydrostatic Transmission164
  - Travelling System164
  - (1)-2 Pump and Motor166
  - (1 )-3 Oil Flow and Valves167
  - Charge Relief Valve168
  - Check and High Pressure Relief Valve168
  - Neutral Valve168
  - (1)-4 Operation169
  - Forward170
  - Reverse171
  - (1)-5 Control Linkage172
  - (1)-6 Cruise Control Linkage (B2910 Only)173
  - (1)-7 Cruise Control Release System (82910 Only)174
  - (2)-1 Hi-Lo Gear Shift Section (82410)175
  - (2)-2 Range Gear Shift Section (82710-82910)175
  - (3)-1 Front Wheel Drive Section (82410)176
  - (3)-2 Front Wheel Drive Section (82710-82910)176
  - MID-PTO Section177
  - Pto System177
  - Rear Pta Shift Lever on Position177
  - Rear PTO Section177
  - Differential Function178
  - Differential Gear System178
  - During Straight Running178
  - During Turning178
  - Differential Lock179
- Troubleshooting182
- SERVICING Specifications185
- Tightening Torques187
  - Adjusting Maximum Speed188
  - Adjusting Neutral188
- Checking and Adjusting188
  - Adjusting Cruise Control Linkage189
  - Adjusting Cruise Control Release Linkage189
  - Cruise Control Lever189
  - Cruise Control Linkage189
  - Charge Relief Pressure190
  - Charge Relief Pressure and High Relief Pressure190
  - High Relief Pressure190
  - Neutral Valve Actuation Test191
- Disassembling and Assembling192
- Separating Engine from Clutch Housing192
  - Clutch Housing Rear Cover197
  - Clutch Rod and Clutch Release Fork197
- Disassembling Clutch Housing197
  - Battery Connector198
  - Clutch Shaft and Others198
  - Roll-Over Protective Structures (Raps) and 3 Point Hitch198
- Separating Center Frame and Transmission Case198
  - Seat, Fender, Steering Wheel, Panel, Step and Others199
  - HST Pedal200
  - Sub Frame RH, HST Delivery Pipe and Pipe Clamp201
  - Sub Frame RH, Hydraulic Pipes and Others201
  - Separating Transmission Case from Center Frame and Hydrostatic Transmission (HST)202
  - Separating Hydraulic Cylinder, Rear Axle Cases and Others203
  - Separating MID-PTO Case, Transmission Case and Differential Case203
  - 14T Gear204
  - Charge Pump204
- Disassembling Transmission Case204
- Hydrostatic Transmission204
  - Neutral Holder and Neutral Holder Arm204
  - Center Section205
  - Input Shaft205
  - Motor Cylinder Block and Pump Cylinder Block205
  - 4Th Gear Shaft and Spiral Bevel Pinion Shaft206
  - Cover A, B and Trunnion Shaft206
- Transmission Case206
  - 2Nd Gear Shaft and Middle Shaft207
  - Bearing Holder207
  - Front Wheel Drive Shaft207
  - Differential Gear Assembly208
- Disassembling Differential Gear Case208
  - MID-Pta Shaft208
  - Pta Shaft208
  - Differential Side Gear and Differential Pinion209
  - Spiral Bevel Gear209
  - Checking Bearing210
- Clutch Housing210
- Hydrostatic Transmission210
- Servicing210
  - Cylinder Block Bore and Pistons211
  - Cylinder Block Face211
  - Piston Slipper and Retainer Plate211
  - Valve Plate211
  - Oil Seals and Bearings for Shaft212
  - Thrust Plate and Swashplate212
  - Trunnion Shaft Cover212
  - Clearance between Shift Fork and Shift Gear Groove213
  - Clearance between 13T Gear and 3Rd Shaft214
  - Clearance between Differential Case (Spiral Bevel Gear) and Differential Side Gear214
  - Backlash between Differential Pinion and Differential Side Gear215
  - Clearance between Differential Pinion Shaft and Differential Pinion215
  - Backlash between Spiral Bevel Pinion and Spiral Bevel Gear216
  - Separating Rear Axle Case225
  - Rear Wheels (82410 Only)226
  - Rear Wheels (82710, 82910)226
  - Rear Axle Case (Bi-Speed Turn Type Only)227
  - Separating Rear Axle Case from Differential Gear Case227
  - Differential Lock Shift Fork, Differential Lock Clutch (Right Side Only), 57T Gear and Rear Axle228
  - Disassembling Rear Axle Case228
  - Rear Axle Case (82710, 82910)228
- SERVICING Specifications236
- Troubleshooting236
  - Adjusting Brake Pedal Free Travel237
  - Brake Pedal237
- Tightening Torques237
  - Clearance between Brake Pedal Shaft and Center Frame Bush238
  - Separating Brake Pedal238
- Disassembling and As8Embling239
  - Disassembling Brake Assembly239
  - Separating Rear Axle Case with Brake Assembly239
  - Brake Assembly240
  - Brake Cam Lever Movement240
  - Brake Discs and Friction Plate240
  - Brake Disc and Friction Plate Wear241
  - Cam Plate Flatness and Bearing Holder Wear241
  - Height of Cam Plate and Ball241
  - 2 Wheel Drive Mode244
  - 4 Wheel Drive Model245
  - Bi-Speed Turn Type246
  - Bi-Speed Turn 4WD247
  - Bi-Speed Turn Power Train247
  - Standard 4WD247
  - Bi-Speed Cam248
  - Camber249
  - Caster249
  - Front Wheel Alignment249
  - Kingpin Angle249
  - Toe-In250
- Troubleshooting254
- SERVICING Specifications255
- Checking, Disassembling and Servicing259
  - Front Axle Rocking Force259
  - Toe-In Adjusting259
  - Bi-Speed Turn Change Cable (Bi-Speed Turn Type)260
  - Bi-Speed Turn Shift Rod (Bi-Speed Turn Type)260
  - Front Wheel Hub261
  - Tie-Rod and Knuckle Arm261
  - Knuckle Shaft262
  - Separation of Front Axle and Front Axle Frame262
  - Disconnecting Propeller Shaft263
  - Draining Front Axle Case Oil263
- Separating Front Axle Assembly263
  - Front Axle Assembly264
  - Bevel Gear Case and Front Gear Case265
- Disassembling Front Axle Assembly265
  - Tie-Rod and Axle Bracket265
  - Front Gear Case266
  - Axle267
  - Bevel Gear Case Gears267
  - Spiral Bevel Pinion Shaft and Differential Gear Assembly268
  - Differential Gear269
  - Disassembling and Assembling (Bi-Speed Turn Type)270
  - Front Axle271
  - Propeller Shaft271
  - Separation of Bi-Speed Turn Case272
  - Tie-Rod and Bevel Gear Case Assembly272
  - Shift Cam273
  - Shift Roller Shaft273
  - Ball Bearing and Oil Seal274
  - Separation of Bi-Speed Turn Gear Case274
  - Shift Fork, Shift Rod and Change Lever274
  - Bi-Speed Turn Clutch Assembly275
- 2WD Model276
  - Clearance between Center Pin and Pin Support276
  - Clearance between Differential Case (Differential Case Cover) and Differential Side Gear276
  - Clearance between Knuckle Shaft and Bushing276
  - Turning Torque of Spiral Bevel Pinion Shaft277
  - Backlash between 11 T Bevel Gear and 16T Bevel Gear278
  - Backlash between Spiral Bevel Pinion Shaft and Spiral Bevel Gear278
  - Clearance between Front Axle Case Bosses and Bracket Bushing279
  - Press-Fitting Bushing279
  - Bi-Speed Turn Clutch Friction Torque280
  - Clearance between Shift Fork and Shifter Groove280
  - Clutch Disc Wear and Friction Plate Wear281
  - Free Length of Bi-Speed Turn Spring281
  - Working Load of Bi-Speed Turn Spring281
  - Turning Force of Spiral Bevel Pinion Shaft and Backlash between Spiral Bevel Pinon Shaft and Spiral Bevel Gear282
  - Hydraulic Pump286
  - Hydraulic Circuit for Power Steering System287
  - Power Steering Body288
  - Neutral Position289
  - Oil Flow289
  - Left Turning290
  - Manual Operation291
  - Right Turning291
  - Operation of Relief Valve292
  - Flowmeter Connecting and Test Preparation299
  - Hydraulic Pump Checking and Adjusting299
  - Pump Test300
  - Removing Hydraulic Pump300
  - Clearance between Bushing and Shaft301
  - Clearance between Tip of Gear Tooth and Casing301
  - Cover, Side Plate and Gear301
  - Side Plate Thickness301
  - Power Steering Checking302
  - Relief Valve Setting Pressure302
  - Steering Wheel Operating Force302
  - Steering Wheel Play302
  - Separating Power Steering Assembly303
  - Power Steering Assembly304
  - Disassembling Power Steering Body305
  - Pitman Arm305
  - Side Cover and Sector Gear Shaft305
  - Steering Column305
  - Clearance between Steering Gear Box and Rack (Piston)306
  - Disassembling Valve Housing306
  - Valve Assembly306
  - Valve Assembly and Rack (Piston)306
  - Axial Play of Rack (Piston) Assembly307
  - Backlash between Sector Gear Shaft and Rack (Piston)307
  - Clearance between Valve Housing and Sleeve307
  - Hydraulic Circuit310
  - Hydraulic Block Type Outlet311
  - Lift313
  - Neutral313
  - Position Control Valve313
  - Down314
  - Shockless Mechanism315
  - Feedback Linkage for Position Control316
  - Hydraulic Cylinder317
  - Hydraulic Piston330
  - Lift Arm, Hydraulic Arm Shaft and Hydraulic Arm330
  - Lowering Speed Adjusting Valve330
  - Disassembling Position Control Valve331
  - Plunger331
  - Spool331
  - Hydraulic Cylinder Bore332
  - Poppet 1332
  - Poppet 2 and Unload Poppet332
  - Clearance between Hydraulic Arm Shaft and Bushing333
  - Wiring Diagram337
  - Electrical Circuit339
  - Starting System340
  - Starter341
  - Clutch Pedal, PTO Gear Shift Lever and HST Pedal342
  - Glow Plug342
  - Safety Switch342
  - Range Gear Shift Lever [Only 82710 Affected Serial No.: below 15496]343
  - Engine Key Switch Shut-Off System344
  - Engine Stop Solenoid344
  - Charging System345
  - AC Dynamo346
  - Regulator346
  - Lighting System347
  - Head Light348
  - Turn Signal Light348
  - Hazard Light349
  - Hazard Switch349
  - Starter Relay349
  - Easy Checker350
  - Engine Oil Pressure Alarm350
  - Engine Oil Pressure Switch350
  - Indication Items350
  - Coolant Temperature351
  - Fuel Level Sensor351
  - Fuel Quantity351
  - Gauge351
- Troubleshooting354
  - Battery Terminal Connection358
  - Battery Voltage358
- Checking358
- Checking, Disassembling and Servicing358
- Battery Specific Gravity359
- Checking359
- Main Switch359
- STARTING System359
  - Connector Voltage360
  - Main Switch Continuity360
  - Magnetic Switch Test361
  - Main Switch Key at START Position361
  - Motor Test361
- Starter361
  - Glow Plug Continuity362
  - Lead Terminal Voltage362
  - Safety Switch Continuity363
  - Disassembling Starter364
  - Brush Holder365
  - Brush Wear365
  - Armature Coil366
  - Field Coil366
- Checking367
- Engine Key Switch Shut-Off System367
  - Engine Stop Solenoid Test367
  - The Correct Voltage Output368
  - Battery Charging Current370
- Charging System370
- Checking370
  - Continuity Across Regulator's Terminals370
  - Dynamo No-Load Voltage370
- Checking371
- LIGHTING System371
- Checking374
- Easy Checker374
- Checking376
- Gauge376
  - Checking Engine Start System (OPC Specification)379
  - Replacing Fuse (OPS Specification)380
  - Color of Wiring381
  - OPC (Operator Presence Control) System381
  - OPC Type382
  - Clutch Pedal Switch383
  - Controller383
  - OPC System Circuit383
  - MID-PTO Shift Lever Switch384
  - PTO Shift Lever Switch384
  - Seat Switches384
  - Speed Control Pedal Switch384
  - Engine Automatically Stopping: Automatic Engine Stop386
  - Engine Starting386
  - Checking Safety Switches388
  - Safety Switches388
  - Clutch Pedal Switch, Speed Control Pedal Switch, MID-PTO Shift Lever Switch and PTO Shift Lever Switch Continuity389
  - Seat Reverse Switch Continuity389
  - Seat Switch Continuity389
  - Replacing Controller390
  - Specifications394
  - Front Tread399
  - Hydraulic System400
- Control Valve (Quarter Inching Valve)402
  - Slow up (Quarter Inching Control)402
  - Up402
  - Slow down (Quarter Inching Control)403
- Relief Valve404
- Feedback Linkage405
- Hydraulic Cylinder406
- Servicing Specifications408
- Tightening Torques409
- Checking and Adjusting410
- Hydraulic Cylinder Assembly and Hydraulic Block410
  - Lift Arm Free Play411
  - Control Valve412
- Disassembling and Assembling412
- Seat and Seat Stay412
- Separating Hydraulic Cylinder Assembly412
- Servicing414
- Electrical System415
- Wiring Diagram417
- Operators Presence Control (Opc)419
- Engine Automatically Stopping: Automatic Engine Stop421
- Engine Starting421

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Kubota B2910 Specifications

General

Fuel Type	Diesel
Transmission Type	Hydrostatic
Hydraulic System	Open center
3-Point Hitch	Category I
Lift Capacity	1, 323 lbs (600 kg)
Drive	4WD
Engine Type	Diesel, 4-cycle, liquid-cooled
Horsepower	30 hp
Number of Gears	Infinite (3 ranges)
Wheelbase	63 inches
PTO Horsepower	22 hp

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