John Deere Scrapers 762B Series II Operation & Test Service Manual (TM1673)
Complete Operation & Test manual with Electrical Wiring Diagrams for John Deere Scrapers 762B Series II, with all the workshop information to maintain, diagnose, repair, and rebuild like professional mechanics.
John Deere Scrapers 762B Series II workshop Operation & Test 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.
TM1673 - John Deere 762B Series II Scrapers Technical Manual - Repair.PDF
TM1673 - John Deere 762B Series II Scrapers Technical Manual - Repair.EPUB
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Total Pages: 853 pages
File Format: PDF/EPUB/MOBI/AZW (PC/Mac/Android/Kindle/iPhone/iPad; bookmarked, ToC, Searchable, Printable)
Language: English
MAIN SECTIONS 762B-II (SN. from 818909)
Foreword
Technical Information Feedback Form
General Information
Safety
General Specifications
Torque Values
Fuels and Lubricants
Operational Checkout Procedure
Operational Checkout Procedure
Engine
Theory Of Operation
Diagnostic Information
Adjustments
Tests
Electrical System
System Information
System Diagrams
Sub-System Diagnostics
Adjustments And Additional Information
Power Train
Theory Of Operation
Diagnostic Information
Adjustments
Tests
Hydraulic System
Theory of Operation
Diagnostic Information
Adjustments
Test
Heating and Air Conditioning
Theory of Operation
System Operational Checks
Diagnostic Information
Adjustments
Test
TABLE OF CONTENTS................1
Section 9000: General Information................16
Group 01: Safety................16
Handle Fluids Safely-Avoid Fires................19
Prevent Battery Explosions................20
Prepare for Emergencies................21
Prevent Acid Burns................22
Handle Chemical Products Safely................24
Avoid High-Pressure Fluids................25
Park Machine Safely................26
Support Machine Properly................27
Wear Protective Clothing................28
Work in Clean Area................29
Service Machines Safely................30
Work In Ventilated Area................31
Illuminate Work Area Safely................32
Replace Safety Signs................33
Use Proper Lifting Equipment................34
Remove Paint Before Welding or Heating................35
Avoid Heating Near Pressurized Fluid Lines................36
Keep ROPS Installed Properly................37
Service Tires Safely................38
Avoid Harmful Asbestos Dust................39
Practice Safe Maintenance................40
Use Proper Tools................41
Dispose of Waste Properly................42
Live With Safety................43
Group 02: General Specifications................16
762B Series II Specifications................48
762B Series II Drain and Refill Capacities................52
Group 03: Torque Values................16
Hardware Torque Specifications................54
Unified Inch Bolt and Cap Screw Torque Values................55
Metric Bolt and Cap Screw Torque Values................57
Additional Metric Cap Screw Torque Values................59
Check Oil Lines And Fittings................61
Service Recommendations For Flat Face O-Ring Seal Fittings................62
Service Recommendations for O-Ring Boss Fittings................64
Service Recommendations for 37° Flare and 30° Cone Seat Connectors................66
Service Recommendations For Inch Series Four Bolt Flange Fittings................68
Service Recommendations for Metric Series Four Bolt Flange Fitting................70
Group 04: Fuels and Lubricants................17
Diesel Fuel................73
Low Sulfur Diesel Fuel Conditioner................74
Handling and Storing Diesel Fuel................75
Fuel Tank................76
Do Not Use Galvanized Containers................77
Diesel Engine Oil................78
Hydraulic, Transmission, Drive Axle, and Elevator Gearbox Oils................79
Grease................80
Oil Filters................81
Lubricant Storage................82
Alternative and Synthetic Lubricants................83
Mixing of Lubricants................84
Section 9005: Operational Checkout Procedure................85
Group 10: Operational Checkout Procedure................85
Complete Machine Operational Checkout................124
Section 9010: Engine................162
Group 05: Theory Of Operation................162
POWERTECHPOWERTECH is a trademark of Deere & Company. 8.1 L 6081 John Deere Engine-Use CTM86................162
General (6081) Engine Description................165
Sectional View (6081) Engine................166
Aspirator Muffler Operation................168
Group 15: Diagnostic Information................162
POWERTECHPOWERTECH is a trademark of Deere & Company. 8.1 L 6081 John Deere Engine-Use CTM86................162
Diagnose Engine Malfunctions................171
Group 20: Adjustments................162
POWERTECHPOWERTECH is a trademark of Deere & Company. 8.1 L 6081 John Deere Engine-Use CTM86................162
Slow and Fast Idle Adjustment................186
Speed Control Linkage Adjustment................188
Fuel Shut-Off Solenoid Linkage Adjustment................190
Bleed Fuel System................192
Group 25: Tests................162
POWERTECHPOWERTECH is a trademark of Deere & Company. 8.1 L 6081 John Deere Engine-Use CTM86................162
JT05801 Clamp-On Electronic Tachometer Installation................747
JT05800 Digital Thermometer Installation................748
Fuel Line Leakage Test................197
Air Cleaner Element Restriction Indicator Switch Test................198
Air Intake System Leakage Test................200
Engine Performance Test Using Turbocharger Boost Pressure................202
Engine Performance Test (Torque Converter Stall Speed)................205
Fuel Tank Supply Pump Pressure and Flow Tests................207
Radiator Air Flow Test................209
Section 9015: Electrical System................212
Group 05: System Information................212
Electrical System Visual Inspection................218
Electrical Circuit Malfunctions................219
High Resistance Circuit................221
Open Circuit................223
Grounded Circuit................225
Shorted Circuit................227
Sensor Circuit Shorted to Power................229
Sensor Circuit Shorted to Itself................231
Sensor Circuit Shorted to Ground................233
Multimeter................235
Seven Step Electrical Test Procedure................236
Schematic, Wiring Diagram, and Component Location Information................238
Reading a System Functional Schematic................262
Reading a Wiring Diagram................241
Reading a Component Location Diagram................243
Reading a Connector End View Diagram................245
Electrical Schematic Symbols................246
Group 10: System Diagrams................212
Component Identification Table................251
Fuse (Blade-Type) Color Codes................253
Fuse Specifications................254
Wiring and Schematic Diagrams Legend................256
System Functional Schematic Section Legend................261
System Functional Schematic................262
Dash Harness (W1) Wiring Diagram................265
Dash Harness (W1) Component Location................266
Engine Harness (W2) Wiring Diagram................267
Engine Harness (W2) Component Location................268
Tractor Harness (W3) Wiring Diagram................269
Tractor Harness (W3) Component Location................270
Side Console Harness (W5) and Suspension Seat Harness (W15) Wiring Diagram-Automatic Transmission................271
Relay Harness (W13) Wiring Diagram-Automatic Transmission................272
Side Console Harness (W5) and Relay Harness (W13) Component Location-Automatic Transmission................273
Transmission Harness (W6) and Solenoid Harness (W8) Wiring Diagrams-Automatic Transmission................274
Transmission Harness (W6) and Solenoid Harness (W8) Component Location-Automatic Transmission................275
Side Console Harness (W10) Wiring Diagram................276
Side Console Harness (W10) Component Location-Manual Transmission................277
Scraper Harness (W4) and Rear Frame Harness (W11) Wiring Diagrams................278
Scraper Harness (W4) And Rear Frame Harness (W11) Component Location................279
Manual Transmission Harness (W7) and Solenoid Harness (W14) Wiring Diagram................280
Manual Transmission Harness (W7) and Solenoid Harness (W14) Component Location................281
Control Harness (W9) Wiring Diagram-Manual Transmission................282
Control Harness (W9) Component Location-Manual Transmission................283
Group 15: Sub-System Diagnostics................213
Starting and Charging Circuit Operational Information-Manual Transmission................285
Starting and Charging Circuit Theory Of Operation-Manual Transmission................286
Starting and Charging Circuit Schematic-Manual Transmission................287
Starting and Charging Circuit Diagnostic Procedures-Manual Transmission................288
Starting and Charging Circuit Operational Information-Automatic Transmission................300
Starting and Charging Circuit Theory Of Operation-Automatic Transmission................301
Starting and Charging Circuit Schematic-Automatic Transmission................302
Starting and Charging Circuit Diagnostic Procedures-Automatic Transmission................304
Fuel Control Circuit Operational Information................315
Fuel Control Circuit Theory Of Operation................316
Fuel Control Circuit Schematic................317
Fuel Control Circuit Diagnostic Procedures................318
Park Brake Circuit Operational Information-Manual Transmission................324
Park Brake Circuit Specifications-Manual Transmission................325
Park Brake Circuit Theory of Operation-Manual Transmission................326
Park Brake Circuit Schematic-Manual Transmission................327
Park Brake Circuit Diagnostic Procedures-Manual Transmission................328
Park Brake Circuit Operational Information-Automatic Transmission................337
Park Brake Circuit Specifications-Automatic Transmission................338
Park Brake Circuit Theory of Operation-Automatic Transmission................339
Park Brake Circuit Schematic-Automatic Transmission................341
Park Brake Circuit Diagnostic Procedures-Automatic Transmission................342
Control Circuit Operational Information-Manual Transmission................352
Control Circuit Theory of Operation-Manual Transmission................353
Control Circuit Schematic-Manual Transmission................354
Control Circuit Diagnostic Procedures-Manual Transmission................355
Control Circuit Operational Information-Automatic Transmission................361
Control Circuit Theory of Operation-Automatic Transmission................362
Control Circuit Schematic-Automatic Transmission................363
Control Circuit Diagnostic Procedures-Automatic Transmission................364
Seat Suspension Circuit Operational Information................368
Seat Suspension Circuit Theory of Operation................369
Seat Suspension Circuit Schematic................370
Seat Suspension Circuit Diagnostic Procedures................371
Fuel Gauge, Hour Meter And Tachometer Circuit Operational Information................373
Fuel Gauge, Hour Meter and Tachometer Circuit Specifications................374
Fuel Gauge, Hour Meter and Tachometer Circuit Theory of Operation................375
Fuel Gauge, Hour Meter and Tachometer Circuit Schematic................376
Fuel Gauge, Hour Meter and Tachometer Circuit Diagnostic Procedures................377
Horn and Logic Module Circuit Operational Information................382
Horn and Logic Module Circuit Theory of Operation................383
Horn and Logic Module Circuit Schematic................384
Horn Circuit Diagnostic Procedures................385
Start Aid, Differential Lock and Brake Priority Circuits Operational Information................388
Start Aid, Differential Lock and Brake Priority Circuit Specifications................389
Start Aid, Differential Lock and Brake Priority Circuits Theory of Operation................390
Start Aid, Differential Lock and Brake Priority Circuit Schematic................391
Start Aid, Differential Lock and Brake Priority Circuits Diagnostic Procedures................392
Monitor Circuit Operational Information................398
Monitor Circuit Specifications................399
Monitor Circuit Theory of Operation................400
Monitor Circuit Schematic................401
Monitor Circuit Diagnostic Procedures................402
Work Light Circuit Operational Information................418
Work Light Circuit Theory of Operation................419
Work Light Circuit Schematic................420
Work Light Circuit Diagnostic Procedures................421
Turn Signal and Warning Light Circuit Operational Information................424
Turn Signal and Warning Light Circuit Theory of Operation................425
Turn Signal and Warning Light Circuit Schematic................426
Turn Signal and Warning Light Circuit Diagnostic Procedures................427
Brake Light, Drive Light and Secondary Brake Circuit Operational Information................434
Brake Light Circuit Specifications................435
Brake Light, Drive Light, and Secondary Brake Circuit Theory of Operation................436
Brake Light, Drive Light and Secondary Brake Circuit Schematic................437
Brake Light, Drive Light and Secondary Brake Circuit Diagnostic Procedures................438
Windshield Wiper Circuit Operational Information................445
Windshield Wiper Circuit Theory of Operation................446
Windshield Wiper Circuit Schematic................447
Windshield Wiper Circuit Diagnostic Procedures................448
Dome Light and Air Conditioner Circuit Operational Information................452
Dome Light and Air Conditioner Circuit Specifications................453
Dome Light and Air Conditioner Circuit Theory of Operation................454
Dome Light and Air Conditioner Circuit Schematic................792
Dome Light and Air Conditioner Circuit Diagnostic Procedures................456
Group 20: Adjustments And Additional Information................215
Logic Module Test In Machine................466
Logic Module Bench Test................469
Turn Signal and Warning Light Switch Test................472
Display Monitor Test................473
Alternator Operation-80 Amp Bosch................475
Alternator Voltage Output Test-80 Amp Bosch................477
Battery Operation................478
Battery Specifications................479
Diagnose Battery Malfunctions................480
Check Battery Electrolyte Level and Terminals................481
Procedure for Testing Batteries................484
Using Booster Batteries-24 Volt System................485
Manual Transmission Gear Selector Switch Test................487
Automatic Transmission Test................488
Magnetic Pickup Test................497
Section 9020: Power Train................499
Group 05: Theory Of Operation................499
Power Train Block Diagram................503
Torque Converter Operation................504
Transmission Hydraulic System Operation................506
Transmission Control Valve Operation................508
Transmission Filter And Filter Relief Valve Operation................514
Transmission Pump Operation................516
Pressure Regulating Valve And Converter Relief Valve Operation................518
Torque Converter Lockup Clutch Modulation Valve Operation................521
Automatic And Manual Shift Transmission Torque Converter Lockup Clutch................524
Transmission Lubrication System Operation................525
Transmission Operation................527
Shift Modulation Valve Circuit Operation................530
Transmission Power Flow................535
Automatic Shift Transmission Operation................546
Manual Shift Transmission Operation................548
Valve Module Operation (S.N. -854650)................549
Valve Module Operation (S.N. 854651- )................552
Differential Lock and Axle Lubrication Hydraulic System Operation................555
Differential Lock Solenoid Valve and Sequence Valve Operation................558
Differential Lock Operation................562
Tractor and Bowl Brakes, and Park Brake Circuit Operation (S.N. -854650)................564
Tractor and Bowl Brakes, and Park Brake Circuit Operation (S.N. 854651- )................567
Tractor and Bowl Brake Accumulators Operation................571
Tractor and Bowl Brake Valve Operation (S.N.-854650)................573
Tractor and Bowl Brake Valve Operation (S.N. 854651-)................577
Tractor Brakes and Final Drive Operation................579
Bowl Brakes Operation (S.N. -854650)................581
Bowl Brakes Operation (S.N. 854651- )................583
Secondary Brake Solenoid Valve Operation (S.N. -854650)................584
Secondary Brake Solenoid Valve Operation (S.N. 854651- )................586
Park Brake Operation................588
Group 15: Diagnostic Information................500
Diagnose Transmission Malfunctions................597
Diagnose Torque Converter Malfunctions................604
Diagnose Differential Lock Malfunctions................606
Diagnose Differential And Axle Malfunctions................609
Diagnose Tractor or Bowl Brake Malfunctions................610
Diagnose Park Brake Malfunctions................611
Brake, Park Brake and Differential Lock Hydraulic System (S.N. -854650)................613
Brake, Park Brake and Differential Lock Hydraulic System (S.N. 854651- )................614
Transmission Hydraulic System................615
Group 20: Adjustments................500
Bleed Brake Hydraulic System................619
Bowl Brakes Adjustment (S.N. -854650)................622
Burnish Bowl Brake Shoe Facings (S.N. -854650)................624
Burnish Bowl Brake Pad Facings (S.N. 854651- )................625
Park Brake Adjustment................626
Transmission Shift Lever Linkage Adjustment................629
Group 25: Tests................500
JT05801 Clamp-On Electronic Tachometer Installation................747
JT05800 Digital Thermometer Installation................748
Differential Lock and Axle Lubrication Hydraulic System, Transmission Hydraulic System Oil Warm-Up Procedure................636
Tractor Brake Pressure Test (S.N. -854650)................638
Bowl Brake Pressure Test (S.N. -854650)................641
Tractor and Bowl Brake Valve Leakage Test (S.N. -854650)................644
Tractor and Bowl Brake Accumulator Charge Pressure Test................647
Tractor and Bowl Brake Accumulator Inlet Check Valve Leakage Test................650
Park Brake Pressure Test................653
Transmission Hydraulic System Test................656
Transmission Lube Flow Test................663
Transmission Pump Flow Test................665
Transmission Pressure Regulating Valve Test................668
Transmission Lube Pressure Test................670
Converter-In Pressure Test................672
Differential Lock Pressure Test................674
Differential Lock and Axle Lubrication Pump Flow Test................676
Section 9025: Hydraulic System................679
Group 05: Theory of Operation................679
Main Hydraulic System Operation................686
Main Hydraulic Pump Operation................691
Load Sense Pump Control Valve Operation................692
Main Hydraulic Filter and Bypass Valve Operation................694
Steering System Operation................696
Steering Valve Operation................698
Steering Valve, Cylinder Relief Valve Operation................700
Bowl Control Valve Operation................701
Elevator Hydraulic System Operation................705
Internal Pressure Override Valve Operation................710
Group 15: Diagnostic Information................679
Diagnose Hydraulic System Malfunctions................716
Diagnose Steering System Malfunctions................720
Diagnose Elevator System Malfunctions................723
Hydraulic Circuit Symbols................725
Steering, Brake and Bowl Hydraulic System (S.N. -854650)................726
Steering, Brake and Bowl Hydraulic System (S.N. 854651- )................727
Elevator Hydraulic System................728
Group 20: Adjustments................679
Elevator Start-Up Procedure................732
Steering System Bleeding Procedure................735
Adjust Cutting Edge Level................737
Elevator Chain Tension Adjustment................739
Sliding Floor Rail Guide Adjustment................741
Ejector Gate Clearance Adjustment................743
Elevator-to-Cutting Edge Clearance Adjustment................745
Group 25: Test................679
JT05801 Clamp-On Electronic Tachometer Installation................747
JT05800 Digital Thermometer Installation................748
JT02156A Digital Pressure And Temperature Analyzer Installation................749
Tachometer Calibration................750
Main Hydraulic Pump Flow Test................751
Main Hydraulic System Pressure Tests................754
Ejector Gate And Sliding Floor Valve Kickout Tests................757
Bowl Control Valve System Main Relief Valve Pressure Test................760
Steering Valve Leakage Test................763
Hydraulic Cylinder Leakage Tests................766
Bowl Lift Cylinder Drift Test................771
Hydraulic Oil Filter Inspection Procedure................773
Elevator High Pressure Relief Valve Test................774
Elevator Charge Pressure Test................777
Cycle Time Test................780
Section 9031: Heating and Air Conditioning................782
Group 05: Theory of Operation................782
Proper Refrigerant Handling................840
R134A Refrigerant Cautions................841
Refrigerant Theory of Operation................787
Air Conditioning Circuit Specifications................789
Air Conditioning Circuit Operational Information................790
Air Conditioning Circuit Theory Of Operation................791
Air Conditioner Circuit Schematic................792
Receiver/Dryer Operation................793
Compressor Relief Valve Operation................795
Temperature Control................796
Group 10: System Operational Checks................782
Air Conditioning Operational Checks................807
Group 15: Diagnostic Information................782
Diagnose Air Conditioning Electrical Malfunctions................819
Air Conditioning Component Location................821
Air Conditioning Harness (W12) Component Location................822
Air Conditioning Harness (W12) Wiring Diagram................823
Group 20: Adjustments................782
Proper Refrigerant Handling................840
R134A Refrigerant Cautions................841
Refrigerant Hoses And Tubing Inspection................851
R134a Component Oil Charge................828
R134a Refrigerant Recovery, Recycling, and Charging Station Installation Procedure................830
Recover R134a System................832
Evacuate R134a System................834
Charge R134a System................837
Group 25: Test................782
Proper Refrigerant Handling................840
R134A Refrigerant Cautions................841
R134A Air Conditioning System Test................842
Pressure Diagnostic Chart................843
Expansion Valve Bench Test and Adjustment................844
Low Pressure Switch Test................846
High Pressure Switch Test................848
Leak Testing................850
Refrigerant Hoses And Tubing Inspection................851
John Deere Scrapers 762B Series II Operation & Test Service Manual (TM1673)
