Complete technical Operation & Test Manual with electrical wiring diagrams for John Deere 655C and 755C 655C Series II and 755C Series II Crawler Loaders. It's the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.

John Deere 655C and 755C, 655C Series II and 755C Series II Crawler Loaders Operation & Test Technical Manual (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnostic & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.

TM2313 - John Deere 655C, 755C & 655C Series II, 755C Series II Crawler Loaders Technical Manual - Operation & Tests.pdf

MAIN SECTIONS
Table of Contents
9000 - General Information
9005 - Operational Checkout Procedure
9010 - Engine
9015 - Electrical System
9020 - Power Train
9022 - Pneumatic System
9025 - Hydraulic System
9026 - Hydrostatic System
9031 - Hearing and Air Conditioning
...

TABLE OF CONTENTS
Section 9000: General Information....12
  Group 01: Safety....12
    Recognize Safety Information....14
    Follow Safety Instructions....15
    Operate Only If Qualified....16
    Wear Protective Equipment....17
    Avoid Unauthorized Machine Modifications....18
    Inspect Machine....19
    Add Cab Guarding For Special Uses....20
    Stay Clear of Moving Parts....21
    Avoid High-Pressure Oils....22
    Beware of Exhaust Fumes....23
    Prevent Fires....24
    Prevent Battery Explosions....25
    Handle Chemical Products Safely....26
    Dispose of Waste Properly....27
    Prepare for Emergencies....28
    Start Only From Operator's Seat....29
    Use and Maintain Seat Belt....30
    Prevent Unintended Machine Movement....31
    Avoid Work Site Hazards....32
    Keep Riders Off Machine....34
    Avoid Backover Accidents....35
    Avoid Machine Tip Over....36
    Park And Prepare For Service Safely....38
    Service Cooling System Safely....39
    Remove Paint Before Welding or Heating....40
    Make Welding Repairs Safely....41
    Drive Metal Pins Safely....42
    Live With Safety....43
Section 9005: Operational Checkout Procedure....44
  Group 10: Operational Checkout Procedure....44
    Operational Checkout....89
Section 9010: Engine....133
  Group 05: Theory of Operation....133
    General Engine Description....137
    Engine Identification Tag Description....140
    Fuel Injection System Operation....141
    Fuel Delivery System....143
    Cold Weather Starting Aid Operation....145
    Cooling System Operation....146
    Lubrication System Operation....148
    Charge Air System Operation....150
    Turbocharger Operation....152
    Engine Auxiliary Systems....153
  Group 15: Diagnostic Information....133
    Diagnose Engine Malfunctions....162
    Engine Overheating—Flowchart....170
    Engine Cooling System Component Location....171
    Engine Fuel System Component Location....173
    Engine Intake and Exhaust Component Location....175
  Group 20: Adjustments....133
    Fast and Slow Idle Adjustment....179
    Valve Clearance Adjustment....181
    Fuel Injection Pump Timing—655C....185
    Fuel Injection Pump Timing—Spill Port Method—755C....191
  Group 25: Tests....133
    Intake Manifold Pressure Test—Turbocharger Boost....197
    Cylinder Compression Test....200
    Oil Pump Pressure Test....202
    Fuel Injection Pressure Test....204
    Glow Plug Test....206
    Fuel Supply Pump Pressure Test....207
Section 9015: Electrical System....209
  Group 05: System Information....209
    Electrical Diagram Information....218
    Explanation of Wire Markings....224
    Fuse, Circuit Breaker and Relay Specifications....225
    Component Identification Table....227
    Fuse (Blade-Type) Color Codes....229
  Group 10: System Diagrams....209
    System Functional Schematic, Wire Diagram, and Component Location Master Legend—655C (S.N. —006199)....234
    System Functional Schematic and Section Legend—655C (S.N. —006199)....238
    System Functional Schematic, Wire Diagram, and Component Location Master Legend—655C (S.N. 006200— )....244
    System Functional Schematic and Section Legend—655C (S.N. 006200— )....249
    System Functional Schematic, Wire Diagram, and Component Location Master Legend—755C (S.N. —006199)....255
    System Functional Schematic and Section Legend—755C (S.N. —006199)....259
    System Functional Schematic, Wire Diagram, and Component Location Master Legend—755C (S.N. 006200— )....265
    System Functional Schematic and Section Legend—755C (S.N. 006200— )....270
    Main Wire Harness (W10) and Engine Wire Harness (W13) Component Location....276
    Main Wire Harness (W10) and Engine Wire Harness (W13) Wire Diagram—655C....278
    Main Wire Harness (W10) and Engine Wire Harness Wire Diagram—755C....282
    Instrument Panel Wire Harness (W11) Component Location....286
    Instrument Panel Wire Harness (W11) Wire Diagram....289
    Overhead Console Wire Harness (W12) Component Location....292
    Overhead Console Wire Harness (W12) Wire Diagram....294
    Air Conditioning Wire Harness (W14 and W15) Component Location....297
    Air Conditioning Wire Harness (W14 and W15) Wire Diagram....298
  Group 15: Sub-System Diagnostics....209
    Power Circuit Theory of Operation....301
    Starting and Charging Circuit Theory of Operation....303
    Transmission Control Unit (TCU) Operation....305
    Cooling Fan Drive Circuit Theory of Operation....314
  Group 17: JDG10470376 Diagnostic Test Box....209
    Overview....317
    JDG10470376 Diagnostic Test Box Connection....318
    JDG10470376 Diagnostic Test Box Connection Troubleshooting....321
    JDG10470376 Diagnostic Test Box Basic Operation....322
    JDG10470376 Diagnostic Test Box Test 1—Basic Engine Controls....323
    JDG10470376 Diagnostic Test Box Test 2—Transmission Control Lever (TCL)....325
    JDG10470376 Diagnostic Test Box Test 3—Hydrostatic Solenoid Resistance....332
    JDG10470376 Diagnostic Test Box Test 4—Engine Speed Sensor....334
    JDG10470376 Diagnostic Test Box Test 5—Straight Run Test....336
    JDG10470376 Diagnostic Test Box Test 6—Base Adjustment of Left Track....341
    JDG10470376 Diagnostic Test Box Test 7—Adjustment of Right Track....344
  Group 20: References....210
    Diagnostic Trouble Code (DTC) Retrieval Procedure....352
    Diagnostic Trouble Code Quick Reference List....357
    Diagnostic Trouble Code (DTC)—090....362
    Diagnostic Trouble Code (DTC)—111....363
    Diagnostic Trouble Code (DTC)—112....364
    Diagnostic Trouble Code (DTC)—121....365
    Diagnostic Trouble Code (DTC)—122....366
    Diagnostic Trouble Code (DTC)—211....367
    Diagnostic Trouble Code (DTC)—212....368
    Diagnostic Trouble Code (DTC)—250....369
    Diagnostic Trouble Code (DTC)—251....370
    Diagnostic Trouble Code (DTC)—252....371
    Diagnostic Trouble Code (DTC)—311....372
    Diagnostic Trouble Code (DTC)—312....373
    Diagnostic Trouble Code (DTC)—313....374
    Diagnostic Trouble Code (DTC)—321....375
    Diagnostic Trouble Code (DTC)—322....376
    Diagnostic Trouble Code (DTC)—323....377
    Diagnostic Trouble Code (DTC)—331....378
    Diagnostic Trouble Code (DTC)—332....379
    Diagnostic Trouble Code (DTC)—333....380
    Diagnostic Trouble Code (DTC)—341....381
    Diagnostic Trouble Code (DTC)—342....382
    Diagnostic Trouble Code (DTC)—343....383
    Diagnostic Trouble Code (DTC)—401....384
    Diagnostic Trouble Code (DTC)—402....385
    Diagnostic Trouble Code (DTC)—403....386
    Diagnostic Trouble Code (DTC)—404....387
    Diagnostic Trouble Code (DTC)—405....388
    Diagnostic Trouble Code (DTC)—406....389
    Diagnostic Trouble Code (DTC)—407....390
    JDG9796653 Diagnostic Test Box Connection....391
    JDG9796653 Diagnostic Test Box Operation....399
    Special Tests—Travel Operation Using JDG9796653 Diagnostic Test Box....427
    Adjustment Checklist (S.N. —006199)....435
    Adjustment Checklist Quick Reference and Explanations (S.N. —006199)....449
    Adjustment Checklist (S.N. 006200— )....455
    Adjustment Checklist Quick Reference and Explanations (S.N. 006200— )....469
    Steering and Brake Pedal Test and Adjustment....476
    Selected Engine Speed Sensor (R5) Adjustment....480
    Electrical Component Specifications....485
    DEUTSCH DEUTSCH is a trademark of the Deutsch Co. Replace Connectors....211
    DEUTSCH DEUTSCH is a trademark of Deutsch Co. Replace Rectangular or Triangular Connectors....211
    DEUTSCH DEUTSCH is a trademark of Deutsch Co. Install Contact....211
    Amp Connector Replace Contact....492
    Cannon Connector Replace Contact....493
    Remove Connector Body from Blade Terminals....494
Section 9020: Power Train....495
  Group 05: Theory of Operation....495
    Dampener Drive Operation—655C....498
    Dampener Drive Operation—755C....500
    Splitter Drive Operation—655C....502
    Splitter Drive Operation—755C....506
    Final Drive Operation....510
    Metal Face Seal Operation....515
  Group 15: Diagnostic Information....495
    Diagnose Power Train Malfunctions....519
Section 9022: Pneumatic System....521
  Group 05: Theory of Operation....521
    Air Suspension Seat Operation....523
  Group 15: Diagnostic Information....521
    Air Suspension Seat Schematic....525
Section 9025: Hydraulic System....526
  Group 05: Theory of Operation....526
    Hydraulic System Operation....529
    Main Hydraulic Pump Operation....530
    Hydraulic Pump Controls Operation....532
    Control Valve Operation....535
    Auxiliary Control Valve Operation....538
    Pilot Control Valve Operation....540
    Auxiliary Pilot Control Valve Operation....543
    Hydraulic System Relief Valve Operation....545
    Circuit Relief Valve with Anti-Cavitation Operation....547
    Boom Float Solenoid Valve Operation....549
    Solenoid Valve Manifold Operation....551
    Boom Height Limiter Solenoid Valve Operation....553
    Return-to-Dig Solenoid Valve Operation....554
    Fan Drive Circuit Operation (S.N. 006200— )....555
    Fan Pump Regulator Operation (S.N. 006200— )....557
    Ripper Circuit Operation....559
    Hydraulic Return Filter and Reservoir....561
  Group 15: Diagnostic Information....526
    Diagnose Hydraulic System Malfunctions....572
    Loader Hydraulic System Component Location—755C (S.N. 006200— )....581
    Loader Hydraulic System Schematic—655C....583
    Loader Hydraulic System Schematic—755C....585
    Ripper Hydraulic System Component Location—755C (S.N. 006200— )....587
    Ripper Hydraulic System Schematic 655C and 755C....588
    Multi Purpose Bucket Hydraulic System Component Location—755C (S.N. 006200— )....590
    Multi Purpose Bucket Hydraulic System Schematic 655C and 755C....591
  Group 20: Adjustments....526
    Return-to-Dig Adjustment....595
    Boom Height Limiter Adjustment....597
    Case Drain Filter Inspection....598
    Main Hydraulic Pump Standby Pressure Adjustment....599
    Hydraulic Cylinder Repair Specifications—755C....603
    Hydraulic Cylinder Repair Specifications—655C....605
    Bucket Arm Linkage Inspection....607
  Group 25: Tests....527
    JT05800 Digital Thermometer Installation....610
    JT05801 Clamp-On Electronic Tachometer Installation....611
    JT02156A Digital Pressure/Temperature Analyzer Installation....612
    Hydraulic Oil Warm-Up Procedure....613
    Hydraulic System Pressure Release....614
    Hydraulic Accumulator Pressure Discharge....615
    Hydraulic Accumulator Precharge Test....616
    Main Hydraulic Pump Cut-Off Pressure Test....619
    Main Hydraulic Pump Standby Pressure Test....622
    Main Hydraulic Pump Load Sense (LS) Test....624
    Main Hydraulic System Relief Valve Test....626
    Circuit Relief Valve Test....631
    Main Hydraulic Pump Flow Test....635
    Main Hydraulic Pump Case Drain Test....638
    Pilot Control Valve Test and Adjustment....641
    Cooling Fan Pump Pressure Test (S.N. 006200— )....646
    Cooling Fan Speed Test (S.N. 006200— )....648
    Cooling Fan Pump Flow Test (S.N. 006200— )....650
    Boom and Bucket Cylinder Circuit Drift Test....653
    Cylinder Leakage Test....656
Section 9026: Hydrostatic System....660
  Group 05: Theory of Operation....660
    Hydrostatic Transmission System Operation....663
    Operating Charge Relief Valve Operation....664
    Charge Oil Pressure Regulating Valve Operation....665
    Cold Start Relief Valve Operation....666
    Park Brake Circuit Operation....667
    Hydrostatic Pump Operation....668
    Hydrostatic Motor Operation....672
    High Pressure Relief Valve Operation....679
    Pump Proportional Solenoid Valve Operation....680
    Towing Circuit Operation (S.N. —006199)....682
    Towing Circuit Operation (S.N. 006200— )....684
    Transmission Control Lever....686
  Group 15: Diagnostic Information....660
    Hydraulics/Hydrostatics Overheating—Flowchart....691
    Low Charge Pressure—Flowchart....692
    Mistrack/Indexes—Flowchart....693
    Machine Will Not Reach Full Speed—Flowchart....694
    Low Power In One Track—Flowchart....695
    Engine Starts But Machine Will Not Move—Either Side or Stops Moving—Flowchart....696
    Diagnostic Test Port Component Location....697
    Hydrostatic Transmission System Component Location—755C (S.N. 006200— )....700
    Cab Tilt Hydraulic System Schematic....702
    Hydrostatic Transmission System Schematic (S.N. —006199)....703
    Hydrostatic Transmission System Schematic (S.N. 006200— )....705
  Group 20: Adjustments....660
    Hydrostatic Transmission Oil Warm-Up Procedure....708
    Park Brake Bleed Procedure....709
  Group 25: Tests....660
    Releasing Park Brake to Tow the Machine....716
    Park Brake Circuit Test....717
    Park Brake Circuit Relief Valve Test and Adjustment....725
    Hydrostatic Pump Neutral Position Pressure Test and Adjustment....732
    Hydrostatic Pump High Pressure Relief Valve Test....736
    Hydrostatic Pump Flow Test....740
    Hydrostatic Pump Case Drain Test....741
    Hydrostatic Motor Case Drain Test....746
    Hydrostatic Motor Operating Charge Relief Pressure Test....750
    Hydrostatic Pump Regulating Speed Test and Adjustment (Using JDG9796653 Diagnostic Test Box)....751
    Hydrostatic Motor Regulating Speed Test and Adjustment (Using JDG9796653 Diagnostic Test Box)....755
    Hydrostatic Pump Regulating Speed Test and Adjustment (Using JDG10470376 Diagnostic Test Box)....758
    Hydrostatic Motor Regulating Speed Test and Adjustment (Using JDG10470376 Diagnostic Test Box)....763
    Charge Oil Pump Pressure Test....765
    Cold Start Relief Valve Test and Adjustment....768
    Charge Oil Pump Flow Test....771
Section 9031: Heating and Air Conditioning....772
  Group 05: Theory of Operation....772
    Air Conditioning System Cycle Of Operation....775
  Group 15: Diagnostic Information....772
    Diagnose Air Conditioning System Malfunctions....781
    Diagnose Heater System Malfunctions....785
    Air Conditioning Component Location....786
    Air Conditioning Circuit....788
  Group 25: Tests....772
    Proper Refrigerant Handling....791
    R134a Refrigerant Cautions....792
    R134a Oil Charge Capacity....793
    R134a Refrigerant Charge Capacity....794
    Refrigerant Hoses And Tubing Inspection....795
    R134a Air Conditioning System Test....796
    Operating Pressure Diagnostic Chart....799
    Expansion Valve Operating Test....804
    Blower Motor Switch Test....806
    Blower Motor Resistor Test....807
    Heater Blower Motor Test....808
    Air Conditioner Low Pressure Switch Test....809
    Air Conditioner High Pressure Switch Test....811
    Evaporator Temperature Sensor and Expansion Valve Temperature Sensor Test....813
    Leak Testing....815

John Deere 655C, 755C & 655C Series II, 755C Series II Crawler Loaders Operation & Test Technical Manual (TM2313)