John Deere 750J Crawler Dozer Diagnostic Operation and Test Manual (TM10293 10 MAR 16)

This expert diagnostic and testing manual for the John Deere 750J crawler dozer offers advanced troubleshooting, calibration, and system checks. It includes detailed guidance for hydrostatic transmission, engine diagnostics, CAN network errors, controller calibration, and full electrical and hydraulic testing.

Model Covers:

John Deere 750J Crawler Dozer (S.N. 141344-219962)

File Format: PDF

Size: 46.02 MB

No. of pages: 1013

Language: English

Delivery Method: Instant Download - Access your file immediately after purchase.

📑 Included Sections:

General and Safety Information

• Operator qualifications, protective equipment, chemical handling
• Emergency prep, machine inspections, backover and tipover avoidance
• Welding precautions, step/handhold use, ROPS safety

Diagnostic Trouble Codes (DTC)

• CAN Monitor Unit (CMU), Engine Control Unit (ECU), Transmission Control Unit (TCU)
• Electrohydraulic Controller (EHC) and Blade Control Joystick (BCJ)
• Sensor-specific procedures: fuel, air, oil pressure, temp, throttle, injectors, speed sensors
• Short/Open circuit testing, reprogramming, controller replacement guidance

Operational Checkout Tests

• Key switch and engine-on checks: wipers, alternator, fan, park brake, blade, idle, codes
• Transmission speed, decelerator/brake, TCL, horn, HVAC, monitor display functions

Engine Diagnostics

• John Deere 6068 PowerTech™ E 6.8L engine - location, theory, idle and boost pressure tests
• Fuel and cooling system diagnostics and intake/exhaust system mapping

Electrical System Testing

• Fuse/relay specs, full system schematics, connector locations, JDLink, IGC diagrams
• Sub-system theory: CAN, ECU, TCU, CMU, JDLink, harness diagnostics, service advisor usage

Hydraulic System Testing

• Blade and ripper circuits, valve operations, relief tests, pressure/flow diagnostics
• Drift tests, accumulator service, cylinder leakage, pilot pressure issues

Hydrostatic Drive System

• System theory: charge pump, loop flushing, PDCV, neutral valves, fans
• Diagnostics: overheat, mistrack, full-speed loss, low power, stuck tracks, efficiency
• Calibration procedures for TCU, motor swashplate angle, pump displacement

For complete service information, also see:

JDLink (MTG) Technical Manual .......... TM114519
750J Crawler Dozer Repair (S.N. 141344– ) .......... TM10295
PowerTech 8.1 L Diesel Engines — Base Engine .......... CTM86
Alternators and Starting Motors .......... CTM77
PowerTech E 4.5 and 6.8 L Diesel Engines — Level 16 Electronic Fuel System With Denso HPCR .......... CTM502
PowerTech 4.5 L & 6.8 L Diesel Engines — Level 12 Electronic Fuel System With Stanadyne DE10 Pump .......... CTM331
Super Caddy Oil Cleanup Procedure .......... CTM310
PowerTech 8.1 L Diesel Engines — Level 9 Electronic Fuel System With Denso High Pressure Common Rail .......... CTM255
120 Series Hydraulic Cylinders .......... CTM120519
PowerTech 4.5 L & 6.8 L Diesel Engines — Tier 1/Stage I, Tier 2/Stage II, Tier 3/Stage IIIA, Tier 3/Stage IIA, Tier 3/Stage III (Base Engine) .......... CTM104
Ultrasonic Undercarriage Measurement Gauge .......... CTM10001

This John Deere 750J Diagnostic Manual enables detailed electrical, hydraulic, and hydrostatic system diagnosis, ideal for resolving complex issues using advanced fault codes and calibration data.