Caterpillar 302.5C Mini Hydraulic Excavator Repair & Service Manual
Complete repair service manual with electrical wiring diagrams for Caterpillar 302.5C Mini Hydraulic Excavator, with all the shop information to maintain, diagnose, repair, and service like professional mechanics.
Caterpillar 302.5C Mini Hydraulic Excavator workshop service repair manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.
RENR9143 - Specifications (302.5C Mini Hydraulic Excavator Machine System)
RENR9144 - Systems Operation (302.5C Mini Hydraulic Excavator Hydraulic System)
RENR9145 - Testing and Adjusting (302.5C Mini Hydraulic Excavator Hydraulic System)
RENR9146 - Schematic (302.5C Mini Excavator Hydraulic System)
RENR9147 - Disassembly and Assembly (302.5C Mini Hydraulic Excavator Machine Systems)
RENR9158 - Schematic (301.6C, 301.8C & 302.5C Mini-Hydraulic Excavator Electrical System)
RENR9723 - Disassembly and Assembly (302.5C Mini Hydraulic Excavator Engine Supplement)
RENR9143 - Specifications (302.5C Mini Hydraulic Excavator Machine System)......2
Blade Lift Cylinder......3
Boom Cylinder......4
Boom......5
Bucket Cylinder......7
Front Idler......8
Main Hydraulic Pump......9
Recoil Spring......11
Stick - Long Thumb......12
Stick - Long......14
Stick - Thumb......16
Stick Cylinder......18
Stick......19
Swing Boom Cylinder......21
Swing Gear and Bearing......22
Swing Motor......24
Swivel......26
Travel Motor......28
RENR9144 - Systems Operation (302.5C Mini Hydraulic Excavator Hydraulic System)......30
Accumulator (Pilot)......31
Blade Hydraulic System......34
Boom Hydraulic System......36
Bucket Hydraulic System......38
Cylinders (Boom, Stick and Bucket)......40
Final Drive......43
General Information......47
Implements and Swing Controls Alternate Patterns......48
Main Control Valve......54
Main Hydraulic Pump......61
Main Hydraulic System......65
Pilot Hydraulic System......68
Pump Control (Main Hydraulic)......71
Relief Valve (Line)......74
Relief Valve (Main)......76
Relief Valve (Pilot)......78
Return Hydraulic System......79
Stick Hydraulic System......81
Swing Boom Hydraulic System......83
Swing Hydraulic System......88
Swing Motor......92
Travel Counterbalance Valve......98
Travel Hydraulic System......103
Travel Motor......108
Travel Parking Brake......114
RENR9145 - Testing and Adjusting (302.5C Mini Hydraulic Excavator Hydraulic System)......119
Accumulator (Pilot) - Test and Charge......120
Cylinder Drift - Check......132
Cylinder Speed - Check......135
Engine Performance - Test - Engine Speed......141
General Testing and Adjusting Information......142
Hydraulic System Pressure - Release......144
Machine Drift on a Slope - Check......145
Main Hydraulic Pump Air - Purge......148
Operational Checks......151
Relief Valve (Line) - Test and Adjust......152
Relief Valve (Main) - Test and Adjust......158
Relief Valve (Pilot) - Test and Adjust......169
Relief Valve (Swing) - Test and Adjust......173
Specifications......176
Swing Speed and Overswing on Level Ground - Check......178
Swing Speed and Swing Drift on a Slope - Check......181
Travel on Level Ground - Test - Optional Test......185
Travel on Level Ground - Test......187
Visual Inspection......190
RENR9146 - Schematic (302.5C Mini Excavator Hydraulic System)......191
Collage......192
Main......207
RENR9147 - Disassembly and Assembly (302.5C Mini Hydraulic Excavator Machine Systems)......209
Accumulator (Hydraulic Pilot) - Remove and Install......212
Blade - Remove and Install......215
Blade Cylinder - Remove and Install......220
Blower Motor (Heater) - Remove and Install......225
Boom - Remove and Install......233
Boom Cylinder - Remove and Install......241
Bucket - Remove and Install......248
Bucket Cylinder - Remove and Install......250
Bucket Linkage - Remove and Install......255
Cab - Install......259
Cab - Remove......263
Counterweight - Remove and Install......267
Evaporator Coil - Remove and Install......275
Final Drive and Travel Motor - Assemble......283
Final Drive and Travel Motor - Disassemble......295
Final Drive and Travel Motor - Install......307
Final Drive and Travel Motor - Remove......309
Front Idler - Remove and Install......311
Front Idler, Recoil Spring and Hydraulic Track Adjuster - Remove and Install......313
Fuel Tank - Install......315
Fuel Tank - Remove......320
Gear Pump (Pilot) - Assemble......326
Gear Pump (Pilot) - Disassemble......332
Heater Core - Remove and Install......338
Hydraulic System Pressure - Release......346
Hydraulic Tank - Install......347
Hydraulic Tank - Remove......350
Hydraulic Track Adjusters - Remove and Install......353
Load Control Valve (Boom Cylinder) - Remove and Install......356
Main Control Valve - Assemble......360
Main Control Valve - Disassemble......372
Main Control Valve - Install......384
Main Control Valve - Remove......389
Main Hydraulic Pump - Assemble......394
Main Hydraulic Pump - Disassemble......401
Main Hydraulic Pump and Gear Pump (Pilot) - Install......408
Main Hydraulic Pump and Gear Pump (Pilot) - Remove......410
Pilot Valve (Joystick) - Assemble......412
Pilot Valve (Joystick) - Disassemble......415
Pilot Valve (Joystick) - Install......418
Pilot Valve (Joystick) - Remove......422
Pump Drive Coupling - Remove and Install......426
Recoil Spring - Remove and Install......430
Relief Valve (Pilot) - Remove and Install......434
Seat - Remove and Install......436
Selector Valve (Alternate Pattern Control) - Remove and Install......439
Solenoid Valve (Auxiliary Circuit) - Remove and Install......443
Solenoid Valve (Hydraulic Lockout) - Remove and Install......447
Solenoid Valve (Travel Speed) - Remove and Install......449
Sprocket - Remove and Install......451
Stick - Remove and Install......453
Stick Cylinder - Remove and Install......462
Support (Swing Boom) - Install......469
Support (Swing Boom) - Remove......475
Swing Boom Cylinder - Remove and Install......483
Swing Drive - Assemble......490
Swing Drive - Disassemble......494
Swing Drive - Install......498
Swing Drive - Remove......500
Swing Gear and Bearing - Remove and Install......502
Swing Motor - Assemble......504
Swing Motor - Disassemble......511
Swing Motor - Install......518
Swing Motor - Remove......523
Swivel - Assemble......528
Swivel - Disassemble......530
Swivel - Install......532
Swivel - Remove......535
Track - Remove and Install......538
Track Carrier Roller - Remove and Install......542
Track Roller - Remove and Install......544
Upper Frame and Undercarriage Frame - Connect......548
Upper Frame and Undercarriage Frame - Separate......554
RENR9158 - Schematic (301.6C, 301.8C & 302.5C Mini-Hydraulic Excavator Electrical System)......560
Collage......561
Main......576
RENR9723 - Disassembly and Assembly (302.5C Mini Hydraulic Excavator Engine Supplement)......578
Alternator - Remove and Install......579
Battery - Remove and Install......583
Electric Starting Motor - Remove and Install......586
Engine - Install......589
Engine - Remove......595
Fan - Remove and Install......601
Flywheel - Remove and Install......603
Fuel Filter and Water Separator Base - Remove and Install......605
Fuel Transfer Pump - Remove and Install......608
Hydraulic Oil Cooler - Remove and Install......611
Hydraulic System Pressure - Release......614
Muffler - Remove and Install......615
Radiator - Remove and Install......617
Refrigerant Compressor - Remove and Install......623
Refrigerant Condenser - Remove and Install......626
Refrigerant Receiver-Dryer - Remove and Install......632
