Table Of Contents - Kubota u15-3 Workshop Manual

Table of Contents

Product Engineering Section5
Table Of Contents5
Developing Concept And Feature7
Objective And Concept Of Development7
Main Specifications7
Major Selling Points And Improvements8
Product View8
Engine Start Control, Travel Lock Function10
Evaluation Of Competitive Power With Competitors12
Operability13
Working Range14
Outline Of Hydraulic System (Travel Straight Function)14
Actual Performance Comparison15
Machine Specifications16
Major Dimensions And Working Range (With Rubber Crawler16
Dimensional Drawings17
Performance And Lifting Capacity18
Lifting Capacity19
Service Engineering Section21
Maintenance Specifications23
List Of Oil And Water Quantities23
Tightening Torque24
Quality Specifications26
Operating Noise31
Machine Weight And Parts Weight32
Machine Body Structure And Function33
Overall Arrangement33
Arrangement Of Control Levers34
Adoption Of Meters35
Press-Fitting Of Bushes38
Front Equipment39
Greasing40
Cleaning And Greasing The Track Frame Slide Pipes42
Front Attachment43
Bucket Dimensions43
Bucket Fixture Dimensions44
Bucket Link Pin45
Front Pins And Bush46
Swing Bracket47
Control Levers And Linkage48
Lever Strokes And Operating Forces48
Accelerator Lever49
Dozer Lever50
Dozer Cables (Route)51
Swing Pedal52
Under Carriage Components54
Swivel Bearing54
Truck Frame (Adjustment Of Play)55
Structure Of Track Roller56
Tension Device57
Idler And Tension Spring58
Idler And Sprocket59
Rubber Track60
Track Shoe61
Iron Track Shoe62
Dozer63
Engine Specifications64
C.engine64
Engine Performance Curves65
Engine Electrical Data66
Engine Servicing Data67
Engine Mount68
Fuel System69
Route Of Fuel Hose69
Fuel Tank71
Cooling System Structure72
Radiator Specifications73
Air Cleaner74
Hydraulic System75
Main Pump75
Pump Coupling75
Pump Hose Adapter76
P-Q Performance Curve78
Pump Specifications79
Discharge Rate79
Pump Function80
Control Valve81
Relief Valve Specifications81
Control Valve Sectional View86
Swivel Motor89
Swivel System Specifications89
Cross-Sectional View Of Swivel Motor91
Swivel Motor Fittings92
Travel Motor (Wheel Motor)93
Travel Performance Specifications95
Piston Motor Installation96
Piston Motor Structure97
Operating Principle Of Wheel Motor98
Hydraulic Motor100
Operating Principle Of Two-Speed Motor101
Hydraulic Valve (Counter Balance Valve)102
Pilot Valve (Remote Control Valve)103
Adaptors106
Cylinders107
Cylinder Speed107
Specifications And Part Codes Of Boom, Arm, Bucket And Swing Cylinder108
List Of Cylinder Dimensions109
Cylinders' Section View110
Swivel Joint (Rotary Joint)112
Route Of Hose (Travel, Dozer)114
Route Of Hose (Truck Cylinder Hose)115
Unload Valve116
Adaptor Installation117
Selector Valve118
Accessaries Of Hydraulic Compornents119
Check Valve Assy119
Hydraulic Filter119
Oil Tank120
Oil Cooler121
Accumulator122
Hydraulic System Flow123
Hydraulic Pressure Hose Circuit (High-Pressure)123
Hydraulic Pressure Hose Circuit (Low-Pressure)124
Travel Unloading Function125
Boom Confluence126
Service Port Confluence126
Straight Travel Circuit127
Service Port System128
1-Way Or 2-Way Valve129
Hydraulic Components Layout : U15-3131
Hydraulic Circuit Diagram132
Electrical System133
New Functions Of Electric System133
Battery Circuit134
Key Switch (Engine Starter Switch)135
Safty Lever Lock Switch136
Safety Lever Lock Circuit Malfunction137
Solenoid Valve138
Solenoid Test Method139
Construction And Principle Of Circuit Tester139
Travel Hi-Speed Control Circuit140
Troubleshooting: Travel Hi-Speed Malfunction140
Testing Hi - Low Sw141
Hi - Low Self Hold Circuit142
Meter Panel147
Warning Lamps Indication148
Meter Structure149
Meter Panel Circuit Diagram150
Fuel Gauge Coil Resistance Test152
Hour Meter Function Test Led And Stepping Motor Function Check152
Replacing Fuses153
Slow Blow Fuse153
Auto Glow Circuit154
Auto Glow Control Circuit Diagram156
Auto Glow Controller160
Auto Release Control System164
Key Sw To Engine Start Position166
Key Sw To Ac Position167
When The Key Sw Is Stucked At The Start Position168
Key To The Start Position While Engine Is Running169
Auto Release And Auto Glow Circuit Combined170
Water Temp. Sensor & Gauge171
Water Temp. Sensor Circuit Malfunction171
Fuel Control Circuit173
Engine Stop Solenoid174
Coil Commander176
Fuel Sensor178
Engine Oil Pressure Sensor Circuit181
Oil Switch181
Engine Electrical System182
Engine Oil Pressure Failure182
Horn Circuit184
Current Flow185
Charging System (Alternator)187
Charging System Malfunction189
Relays191
Structure Of Relay192
Checking Relays193
Route Of Electric Wiring194
Electrical Component Layout201
Electrical Diagrams202
Electric Circuit202
Electrical Wiring Diagram207
Conversion Tables209