Kubota U20-3 Manuals

Kubota U20-3 Manuals

Manuals and User Guides for Kubota U20-3. We have 1 Kubota U20-3 manual available for free PDF download: Workshop Manual

Kubota U20-3 Workshop Manual

Kubota U20-3 Workshop Manual (509 pages)

Brand: Kubota | Category: Excavators | Size: 29 MB

Table of Contents

Table of Contents
3
A. Body and Engine Identification Marks
7
Safety Measures before Starting Work
8
Safety Measures During Work
8
Safety Precautions for Servicing, Disassembly and Reassembly
8
- Acceptance Inspection
  9
- Cleaning
  9
- Preparation for Disassembly
  9
- Essential Adhesives
  10
- Important Inspection Items after Reassembling
  10
- Important Safety Process and Critical Functional Process
  10
- Items for Servicing
  11
- Locking Adhesive
  11
- Servicing Fundamentals
  11
- O-Ring, Oil Seal, Circlip and Roll Pin
  13
  - Mounting the Circlip
    14
  - Tapping the Roll Pin (Spring Pin)
    14
  - Hydraulic Hose
    15
- Piping
  15
  - Precautions in Tightening the Bolts and Nuts
    15
  - Hose Screw
    16
  - Joint Bodies
    16
  - Metric Size Hose
    16
  - Nuts for Piping
    17
  - Tightening Torque Table for Hose Clamp (Screw Type)
    17
  - Tightening Torque of Bolts and Nuts
    18
  - Types and Materials of Bolts and Nuts
    18
  - Connecting with the Valve
    19
  - Washer-Equipped Elbow
    19
- Machine Quality Specifications
  20
- Maintenance Intervals Chart
  28
  - Changing and Filling up of Hydraulic Oil
    29
  - Changing the Return Filter and Oil
    29
- Hydraulic Oil Check for Machines with Hydraulic Breakers
  29
- List of Important Parts
  30
- Periodic Replacement of Important Parts
  30
  - Machine Body (Mechanism Section)
    31
  - Specifications
    33
- Main Dimensions
  34
- Bucket
  35
- Components Interchangeability
  35
- Control Linkage
  36
- Machine Structure
  36
  - Traveling Lever
    36
  - Accelerator Lever
    37
  - Dozer Lever
    37
  - Service Port Pedal
    38
  - Swing Pedal
    38
  - Retractable Track Lever
    39
- Engine Mount
  40
- Tension Spring
  42
- Undercarriage
  42
  - Upper Roller and Track Roller
    42
  - Fixed Undercarriage
    43
  - Interchangeability between Rubber and Iron Crawler
    43
  - Retractable Undercarriage (U20-3 Only)
    44
  - Retractable Undercarriage
    45
  - Rubber Crawler
    46
  - Steel Crawler
    47
  - Machine Body (Service Section)
    49
  - Machine Weight
    51
  - Machine Specifications
    52
  - Lever Stroke and Operating Force
    53
- Service Section
  53
  - Dimensions of Parts
    54
  - Front Pins
    54
  - Bucket Dimensions
    55
  - Bucket Installation Relevant Dimensions
    56
- Service Section
  58
  - Track Roller, Idler, and Sprocket
    58
  - Dozer
    59
  - Parts Weight
    60
  - Water and Oil Quantity
    61
  - Front Attachment
    62
  - Parts Designation
    62
  - Arm
    63
  - Boom
    63
  - Boom Cylinder Cover
    63
  - Swing Bracket
    63
  - Blade
    64
  - Bracket Link
    64
  - Exchange of Bucket
    65
  - Fitting the Bucket
    65
  - Removing the Bucket
    65
Hydraulic System
65
- Bucket Tooth Replacement
  66
- Exchange of Bucket Teeth and Side Cutters
  66
- Replacing the Side Cutter
  66
- Installation of Dust Seal
  67
- Installation of Thrust Collar on the Swing Bracket
  67
- Front Clearances
  68
- Installation of Pin and Bush
  68
- Pin Bush
  68
- Front Hose Assembly
  70
- Front Hose Control Valve Side
  71
- Hose Clamp
  71
- Assembling Procedure
  72
- Lever and Pedal
  72
- Travel Lever
  72
- Upper Structure
  72
- Check Items after Setup
  73
- Fitting the Plastic Cap
  74
- Tightening Torque of Bolt
  74
- Travel Lever Assembly View
  74
- Travel Lever Lock
  75
- Acceleration / Ever Assembly View (Engine Side)
  76
- Acceleration Lever
  76
- Acceleration Lever Assembly View (Lever Side)
  76
- Acceleration Cable and Hour Meter Cable Routes
  77
- Dozer Cable Route
  79
- Dozer Lever Assembly View
  79
- Swing Pedal Assembly View
  80
- Service Port Operation
  81
- High-Speed Traveling Pedal
  82
- Limit Switch Setup View
  82
- Limit Switch, Left
  82
- Filter (Suction)
  83
- Filter, Assembly (Return)
  83
- Hydraulic Oil Tank Assembling View
  83
- Fuel Tank Assembly View
  84
- Fuel Hose
  85
- Fuel Hose Routes
  85
- Counterweight
  86
- Counterweight Assembly View
  86
- Counterweight Identification
  86
- Counterweight Removal Procedure
  86
- Cab Canopy Installation
  87
- Installing the Cabin
  87
- Canopy Installation
  88
- Tightening Torque of Canopy Lock Screw
  88
- Cover (Seat Support) Identification
  89
- Heater Setup
  89
- Defroster Setup
  90
- Thermal Insulation and Sound Absorber
  91
- Left-Hand Setup
  92
- Right-Hand Setup
  92
- Seat Belt Connection
  92
- Tightening Torque of Seat Belt Assembly
  92
- Boom Cylinder for Cab Type
  93
- Grease Tube
  94
- Swivel Bearing Assembly View
  94
- Under Carriage
  94
- Tension Cylinder
  95
- Track Tension Device
  95
- Idler
  96
- Carrier Roller
  97
- Track Roller
  97
- Track Roller Disassembling Procedure
  98
- Carrier Roller Disassembling Procedure
  99
- Crawler Replacement and Tension Adjustment
  101
- Dimensional View
  102
- Service Data
  102
- Variable Track (U20-3)
  102
- Width MM
  102
- Track Frame
  103
- To Change the Track Width from Large to Small
  104
- Track Stretch Lever
  104
- Track Width Operation
  104
- Main Specifications
  105
- Track Cylinder
  105
- Blade Cylinder
  106
- List of High-Pressure Hoses (Upper Route)
  107
- List of High-Pressure Hoses(Lower Routes)
  107
- Hydraulic Hose Routes
  108
- Precautions in Disassembling/Reassembling
  108
- Travel Wheel Motor Setup
  108
- Blade Piping
  109
- Track Stretcher Piping
  109
- Left-Travel Piping
  110
- Right-Travel Piping
  110
- Control Valve
  111
- Swivel Joint
  112
- Variable Type
  114
- M Series Engine
  115
- 05-M Series Engine WSM
  117
- Before Servicing and Repairing
  118
- Engine Specifications for Construction Machinery
  119
- Engine Electric Components
  120
- Performance Curves
  121
- Dimensions
  123
- Engine (Mechanism Section)
  125
- Feature
  127
- Cylinder Block
  128
- Cylinder Head
  128
- Engine Body
  128
- Crankshaft
  129
- Piston and Piston Rings
  129
- Camshaft
  130
- Connecting Rod
  130
- Rocker Arm
  130
- Flywheel
  131
- Fuel Camshaft
  131
- General
  132
- Lubricating System
  132
- Oil Pump
  133
- Relief Valve
  133
- Oil Filter Cartridge
  134
- Oil Pressure Switch
  134
- Cooling System
  135
- General
  135
- Water Pump
  135
- Radiator (Not Included in the Basic Engine)
  136
- Thermostat
  136
- Radiator Cap
  137
- Air Cleaner (Not Included in the Basic Engine)
  138
- Intake / Exhaust System
  138
- Fuel System
  139
- General
  139
- Injection Pump
  139
  - Delivery Valve
    140
  - Pump Element
    140
  - Reverse Flow Preventing Function
    140
  - Suck-Back Function
    140
  - At Fuel Injection
    141
  - At Suck-Back
    141
  - Dumping Valve
    141
  - Injection Control
    141
- Fuel Filter (Not Included in the Basic Model)
  142
- Injection Nozzle
  142
- Governor
  143
  - At High Speed Running with Overload
    144
  - At Idling
    144
  - At Start
    144
  - During Overload
    144
- Automatic Advance Timer (Not Included in the Basic Model)
  145
  - During Low-Speed Travel
    146
  - During Medium to High-Speed Travel
    146
  - Alternator
    147
- Charging System
  147
- Electrical System
  147
- IC Regulator
  147
- Turbo Charger System
  148
  - Turbocharger Works
    149
  - Compressor
    150
  - Turbine
    150
  - Bearing
    151
  - Seals (Piston Rings)
    152
  - Anti-Vibration Rubber Assembly View
    155
- Engine (Service Section)
  155
  - Engine Bracket Assembly View
    155
  - Engine Mount on the Machine
    155
  - Engine Setup View
    155
  - Detaching the Radiator
    156
  - Reassembling the Radiator
    157
  - Muffler Assembly View
    160
  - Reassembling Procedure
    160
  - Air Cleaner Assembly View
    161
  - Engine Assembly View
    161
  - Fan Belt
    161
  - Cylinder Number
    162
- Engine Identification
  162
- General
  162
- Model Name and Engine Serial Number
  162
- General Precaution
  163
- Tightening Torques
  164
- Troubleshooting
  165
- Servicing Specifications
  168
  - Valve Spring
    169
  - Valve Timing
    169
- Maintenance Check List
  177
- Check and Maintenance
  178
  - Checking and Replenish Cooling Water
    178
  - Checking Engine Oil Level
    178
  - Daily Check Points
    178
  - Check Point of Every 50 Hours
    179
  - Checking Fuel Pipe
    179
  - When Bleeding the System
    179
  - Changing Engine Oil
    180
  - Changing Engine Oil Filter Cartridge
    180
  - Check Point of Every 100 Hours
    180
  - Changing Fuel Filter
    181
  - Checking Fan Belt Damage
    181
  - Checking Fan Bent Tension
    181
  - Cleaning Air Cleaner
    182
  - Cleaning Air Filter Element
    182
  - Check Point of Every 800 Hours
    183
  - Checking Valve Clearance
    183
  - Check Point of 1500 Hours
    184
  - Checking Nozzle Injection Pressure
    184
  - Flywheel Puller
    184
  - Oil Pressure Tester
    185
  - Special Use Puller Set
    185
  - Valve Seat Cutter Set
    185
  - Connecting Rod Alignment Tool
    186
  - Press Gauge
    186
  - Red Check
    186
  - Valve Guide Replacing Tool
    187
  - Injection Pump Pressure Tester
    188
  - Bushing Replacing Tool
    189
  - Flywheel Stopper
    189
  - Crankshaft Bearing 1 Replacing Tool
    190
  - Governor Gear Holder Bushing Replacing Tool
    190
- Checking and Adjusting
  191
- Compression Pressure
  191
- Engine Body
  191
- Disassembling and Assembling
  192
- Top Clearance
  192
- Draining Water and Oil
  193
- External Components
  193
- Cylinder Head and Valves
  194
  - Nozzle Holder Assembly
    194
  - Rocker Arm and Push Rod
    194
  - Tappets
    195
  - Valves
    195
  - Fuel Feed Pump and Hour Meter Gear Case
    196
- Gear Case
  196
  - Nozzle Heat Seat Service Removal Procedure
    196
  - Engine Stop Solenoid and Speed Control Plate
    197
  - Fan Drive Pulley
    197
  - Timer
    199
  - Governor Shaft
    200
  - Fork Lever
    201
  - Cam Gear and Idle Gear
    202
  - Oil Pan and Oil Strainer
    202
- Piston and Connecting Rod
  202
  - Connecting Rod Cap
    203
  - Piston
    203
  - Piston Ring and Connecting Rod
    204
- Flywheel and Crankshaft
  205
  - Starter
    205
  - Bearing Case Cover and Crankshaft
    206
  - Cylinder Head Surface Flatness
    207
  - Main Bearing Case Assembly
    207
- Servicing
  207
  - Clearance between Valve Stem and Valve Guide
    208
  - Cylinder Head Flaw
    208
  - Valve Recessing
    208
  - Correcting Valve and Valve Seat
    209
  - Valve Seating
    209
  - Free Length and Tilt of Valve Spring
    210
  - Replacing Valve Guide
    210
  - Valve Lapping
    210
  - Oil Clearance between Rocker Arm Shaft and Bearing
    211
  - Oil Clearance between Tappet and Tappet Guide Bore
    211
  - Push Rod Alignment
    211
  - Valve Spring Setting Load
    211
  - Camshaft Side Clearance
    212
  - Idle Gear Side Clearance
    212
- Timing Gear and Camshaft
  212
- Piston and Connecting Rod
  214
  - Piston Pin Bore I.D.
    214
  - Replacing Idle Gear Bushing
    214
  - Piston Ring Gap
    215
  - Replacing Small End Bushing
    215
  - Clearance between Piston Ring and Groove
    216
  - Connecting Rod Alignment
    216
  - Crankshaft Alignment
    217
  - Crankshaft Side Clearance
    217
  - Oil Clearance between Crankpin and Crankpin Bearing
    218
  - Undersize Crankpin Bearing
    218
  - Undersize Dimensions of Crankpin
    218
  - Oil Clearance between Crankshaft Journal and Crankshaft Bearing
    219
  - Replacing Crankshaft Bearing
    220
  - Cylinder Wear
    223
  - Correcting Cylinder
    224
- Checking
  225
  - Clearance between Outer Rotor and Pump Body
    225
  - Engine Oil Pressure
    225
- Lubricating System
  225
- Rotor Lobe Clearance
  225
- Servicing
  225
- Clearance between Rotor and Cover
  226
- Checking
  227
- Cooling System
  227
- Fan Belt Tension
  227
- Radiator
  227
- Thermostat Valve Opening Temperature
  227
- Disassembling and Assembling
  228
  - Radiator Cap Air Leakage
    228
  - Radiator Water Leakage
    228
  - Thermostat Assembly
    228
  - Water Pump Assembly
    229
- Checking and Adjusting
  230
- Fuel System
  230
- Injection Pump
  230
  - Injection Timing
    230
  - Fuel Tightness of Pump Elemenet
    231
  - Fuel Tightness of Delivery Valve
    232
  - Nozzle Injection Pressure
    232
- Disassembling and Assembling
  233
- Injection Pump
  233
  - Nozzle Spraying Condition
    233
  - Valve Seat Tightness
    233
- Injection Nozzle
  234
- Nozzle Holder
  234
- Checking
  235
- Electrical System
  235
  - Magnet Switch Test
    235
  - Motor Test
    235
- Starter
  235
- Disassembling and Assembling
  236
- Disassembling Motor
  236
- Glow Plug
  236
- Starter
  236
- Alternator
  237
  - Disassembling Magnet Switch
    237
  - Plunger
    237
  - Pulley
    237
  - Rear End Cover
    237
  - Brush Holder
    238
  - Rear End Frame
    238
  - Rectifier
    238
  - Rotor
    238
  - Bearing at Slip Ring Side
    239
  - Bearing on Drive End Side
    239
  - Retainer Plate
    239
  - Brush Wear
    240
  - Commutator and Mica
    240
- Servicing
  240
- Starter
  240
  - Armature Coil
    241
  - Field Coil
    241
- Alternator
  242
  - Armature Bearing
    242
  - Magnet Switch
    242
  - Overrunning Clutch
    242
  - Slip Ring
    243
  - Stator
    243
- Checking
  245
  - Compressor Side
    245
  - Turbine Side
    245
- Turbo Charger System
  245
  - Wheel Shaft
    245
  - Axial Clearance
    246
  - Radial Clearance
    246
  - Turbine / Compressor Wheel
    246
  - Air Cleaner and Muffler
    247
- Disassembling and Assembling
  247
  - Oil Pipe
    247
  - Turbocharger
    248
  - Hydraulic System (Mechanism Section)
    249
- Features of Hydraulic System
  251
- Hydraulic System (Mechanism Section)
  251
  - Hydraulic System Specifications
    252
  - Main Pump
    253
  - Structure & Specifications
    253
- Performance Curve
  254
- Construction and Behavior
  256
- Operating Principle
  256
- Outline
  256
- Specifications
  257
- General View of Control Valve
  259
  - Boom Section
    261
  - Bucket Section
    261
- Sectional View
  261
  - Inlet Section
    262
  - Travel (Left) Section
    262
  - Travel (Right) Section
    262
  - Arm Section
    263
- Service Section
  264
  - Swing Section
    264
  - Swivel Section
    264
  - Dozer Section
    265
  - Travel Straight Section
    265
  - Arm Crowd
    266
  - Arm Dump
    266
- Arm Regeneration Circuit
  266
- At Neutral Position of Boom Section
  267
- Boom Anti-Fall Valve
  267
- Straight Travel Circuit
  272
- Working Effect
  272
- Simultaneous Operation of Boom & Bucket
  275
  - Function of Anti-Cavitation Valve
    276
  - Function of Relief Valve
    276
- Relief Valve/Anti-Cavitation Valve
  276
- Automatic Air Bleeding in Hydraulic Pilot Section
  277
- Pilot Valve
  277
- Tightening Torque List
  278
- Pilot Valve Control Diagram
  280
  - Basic Function
    281
  - Function
    281
  - Functions of Major Parts
    281
  - Pilot Valve Application
    282
  - With the Lever at Neutral
    282
  - With the Lever Being Tilted
    283
  - With the Lever Held Tilted
    283
  - With the Lever too Tilted (Depending on the Model)
    283
- Structure & Specifications
  284
- Swing Motor
  284
- Operating Principle
  285
- Function of Negative Brake
  287
  - Negative Brake Function (Unload Condition)
    287
  - Negative Brake Release (On-Load Condition)
    287
  - Fixed Undercarriage (U20-3, U25-3)
    288
  - Retractable Undercarriage (U20-3)
    288
  - Rotary Joint (Swivel Joint)
    288
  - Travel Motor
    290
  - Operating Principle of Wheel Motor
    291
  - Principle of Operation
    291
  - Reducer
    292
  - Function of Motor
    293
  - Hydraulic Motor
    293
  - Structure of Motor and Operating Principle
    293
  - Operating Principle of Two-Speed Motor
    294
  - Hydraulic Valve (Counter Balance Valve)
    295
- Structure & Specifications
  296
- U25-3 (Kayaba)
  296
- Specifications
  297
- Operating Principle of Motor
  298
- Operating Principle of Counter Valance Valve
  299
  - Counter Balance Function
    300
  - Brake Function
    301
  - Counter Balance Valve
    301
- Function of Hi-Lo Change
  302
- 2Nd (High) Speed
  303
- Function of Reduction Gear
  304
- Function of Anti-Cavitation Valve
  305
  - Circuit Behavior
    306
  - Motor Start-Up
    306
  - Motor Running at Constant Speed
    307
  - Motor Slowing down
    308
  - Motor Stop
    309
- Hydraulic Circuit Diagram
  311
- U20-3 Fixed Undercarriage
  311
- U20-3 Retractable Undercarriage
  312
- Hydraulic Components Layout
  314
- U25-3
  314
- Hydraulic System (Service Section)
  315
- Common Circuit
  317
- Hydraulic System (Service Section)
  317
- Troubleshooting
  317
- Hydraulics
  319
- Pump
  321
- Motor
  322
- Swivel Performance
  323
- Traveling Performance
  329
  - Travel Mechanism Check Points
    330
  - Checking the Communicating Valve
    331
  - Checking the Counterbalance Valve and High/Low-Speed Selector Valve
    331
  - Checking the Left Travel
    332
  - Checking the Right Travel
    332
  - Checking the Rotary Joint for Internal Leak
    332
  - Pomp
    333
- Specifications
  333
- Swivel Performance
  337
- Traveling Performance
  338
- Cylinder
  339
  - Natural Fall
    339
  - Speed
    339
  - Specifications and Dimensions
    340
  - Specifications and Dimensions at a Glance
    340
  - Cylinder Dimensional Specifications
    341
  - Arm Cylinder
    342
  - Boom Cylinder
    342
  - Bucket Cylinder
    342
  - Tightening Torque
    342
  - Dozer Cylinder
    343
  - Swing Cylinder
    343
  - Checking the Pump Performance
    344
  - Pump Discharge Side
    344
- Pump Flow
  344
- Testing
  344
  - Control Valve Section Layout
    345
  - Pilot Pressure
    345
  - Pilot Primary Pressure
    345
- Pressure Measurement
  345
  - Main Relief Valve Pressure
    346
  - Pilot Valve Hose Routes
    346
  - Overload Relief Pressure
    348
  - Swivel Brake Pressure
    349
  - Swivel Brake Release Valve
    350
  - Travel Two-Speed Selector Pressure
    350
- Drain Measurement
  351
- Swivel Motor
  352
- Measurement of Block Performance
  353
  - Swivel
    353
  - Travel
    353
  - Checking Procedure of each Speed
    354
  - Gravity Fall of Cylinder
    354
- Operating Speed
  354
- Control and Traveling Lever Operating Force
  356
- Straight Travel Performance
  356
- Control and Traveling Lever Operating Force
  357
- Cylinder Natural Fall Amount
  357
- Lever Stroke
  357
  - Disassembling the Pump
    358
  - Pump Coupling
    358
  - Mounting and Dismounting the Pump
    360
  - Component Parts of Pump
    361
  - Disassembling and Reassembling the Pump
    362
  - Disassembling the Body S Kit
    363
  - Dismounting the Oil Seal
    363
  - Separating the Body S from the Body H
    363
  - Disassembling the Body H Kit
    364
  - Disassembling the Cylinder Barrel Kit
    364
  - Assembling the Cylinder Barrel Kit
    365
  - Assembling the Oil Seal
    365
  - Reassembling Precautions
    365
  - Assembling the Body H Kit (Photo 12)
    366
  - Assembling the Body S Kit
    366
  - Assembling the Body S Kit and Body H Kit
    366
  - Assembling the Stopper Pin a and B Kits
    366
  - Checking after Assembly
    367
  - Mounting the Gear Pump
    367
  - Mounting the Hex Socket Lock Screw
    367
  - Troubleshooting of Pump
    367
  - Mounting and Dismounting the Valve
    368
  - Disassembling and Reassembling the Valve
    370
  - Component Parts of Sections
    371
  - Component Parts of Anti-Drift Valve
    372
  - Travel Right Section
    372
  - Component Part of Main Relief Valve
    373
  - Travel Left Section
    374
  - Service Port Section
    375
  - Mounting and Dismounting the Pilot Valve
    379
  - Left P/V
    380
  - Right P/V
    380
  - Disassembling and Reassembling the Pilot Valve
    381
  - Maintenance Standard
    381
  - Trouble Shooting
    392
  - Dismounting the Swivel Motor
    393
  - Mounting and Dismounting the Swivel Motor
    393
  - Swivel Motor Mounting/Dismounting Component Parts
    395
  - Disassembling and Reassembling the Swivel Motor
    399
- Rotary Joint (Swivel Joint)
  409
  - Mounting the Adaptor
    412
  - Mounting and Dismounting the Wheel Motor
    413
- Traveling Motor
  413
- General Cautions in Disassembling/Reassembling
  417
  - Fit the Floating Seal
    430
  - Reassembling the Wheel Motor
    430
  - Mounting Jig
    434
  - Wire
    434
  - Pin
    435
  - Swash Plate
    435
  - Plunger Assembly
    439
  - Disassembling and Reassembling the Boom Cylinder
    443
  - Measuring the Bent in the Piston Rod
    447
  - Measuring the Wear in the Rod and Bush
    447
  - Measuring the Wear in the Tube and Piston Ring
    447
  - Delivery Hose Routing
    448
- Hydraulic Hose
  448
  - Return Drain Hose Routing
    449
  - Blade / Travel Hose
    451
  - Blade/Swing Hose Routing
    451
  - Travel Hose Routing (Rotary Joint Upper)
    451
  - Travel, Swivel, Swing and Blade Hose Routing (Rotary Joint Upper)
    452
  - List of Pilot Hoses
    453
  - Pilot Hose Routing
    454
  - Cross Sectional View of Selector Valve
    455
  - Disassembling the Selector Valve
    455
- Other Hydraulic Valve
  455
  - Selector Valve
    455
  - Installing the Selector Valve
    456
  - Pilot Filter
    456
  - Accumulator
    457
  - Circuit Selection Valve Operation
    458
  - Third Line
    458
  - Components & Harness Layout
    461
  - Battery Circuit
    462
  - Function of Main Circuit
    462
  - Safety Relay Circuit (Automatic Release Function)
    463
  - Auto Glow Circuit
    464
  - Reference: nor Logic Circuit
    464
  - Timer Curve
    465
  - Timer Function Values
    465
  - Fuel Control Circuit
    466
  - Circuit and Its Function
    467
  - Engine Stop Solenoid
    467
  - Engine Oil Pressure Sensor Circuit
    468
  - In Normal Condition
    468
  - Oil Switch
    468
  - Operating Pressure of Oil Switch
    468
  - Horn Circuit
    469
  - Current Flow
    470
  - Cab & Working Lamp Circuit
    472
  - Circuit Diagram
    473
  - Meter Panel
    473
  - Electromagnetic Braking
    474
  - Heater Circuit
    474
  - Purpose of Relay
    474
  - Travel Hi-Speed Control Circuit
    475
  - Troubleshooting: Travel Hi-Speed Malfunction
    475
  - Electrical System (Service Section)
    477
  - Anchor Type
    479
  - Harness-Fixed Clamp
    479
  - Plug-In Type
    479
  - Wire Harness Installation
    479
  - Front
    480
  - Swivel Frame
    482
  - Around Battery
    483
  - Around Selector Valve
    486
  - Check Instructions
    491
  - Fuse Capacities and Circuits
    491
  - Replacing Fuses
    491
  - Automatic Release Relay
    492
  - Battery Voltage
    492
  - Release Controller
    493
  - Starter Motor
    493
  - Voltage Check
    493
  - Fuel Pump Coupler
    494
  - Key Switch
    494
  - Measuring the Voltage of the Fuel Pump
    494
  - Glow Relay
    495
  - Measuring the Voltage of the Engine Stop
    495
  - Measuring the Voltage of the Glow Relay
    495
  - Inspection of Glow Plug
    496
  - Inspection of Glow Relay
    496
  - Measuring the Voltage of the Glow Plug
    496
  - Charge Engine Oil Lamp
    498
  - Inspection of Alternator
    499
  - Measurement of Engine Oil Pressure
    499
  - Disconnect the Water Temperature Gauge
    500
  - Inspection of Water Temperature Gauge
    500
  - Water Temperature Gauge
    500
  - Fuel Sensor
    501
  - Inspection of Fuel Sensor
    502
  - Interchanging of Lever Lock Coupler
    502
  - Solenoid Valve
    502
  - Inspection of Lever Lock Switch
    504
  - Horn
    505
  - Inspection of Horn
    505
  - Inspection of Horn Switch
    505
  - Measuring the Voltage of the Horn Terminal
    505
  - Measuring the Voltage of the Working Light
    506
  - Working Light
    506
- Service Section
  508

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