
John Deere 35G Excavator Diagnostic Operation and Test Manual (TM12891)
John Deere 35G Excavator Repair Technical Manual TM12894
Table of Contents Overview:
General Information
- Safety guidelines and maintenance recommendations
- Machine decommissioning and proper disposal of fluids
- Operator seatbelt, cab protection, and safety procedures
Diagnostic Trouble Codes (DTCs)
- ECU error codes for Engine, fuel system, and sensors
- Charge alarm, oil pressure errors, and overheating alerts
- CAN communication failures and electrical system diagnostics
Operational Checkout Procedures
- Ignition ON and Engine ON system function tests
- Hydraulic oil pressurization and control valve function checks
- Blade function, travel tracking, and speed change diagnostics
Engine and Cooling System
- Yanmar engine diagnostics and troubleshooting
- Fuel injection pump, sensor checks, and cooling system performance
- Valve lash adjustments, compression testing, and timing verification
John Deere 35G Excavator Diagnostic Operation and Test Manual (TM12891)
Electrical System
- Wiring schematics, fuse specifications, and component locations
- Battery, alternator, and ECU connectivity diagnostics
- Controller Area Network (CAN) signal verification
Hydraulic System
- Hydraulic pump, regulator, and solenoid valve operation
- Control valve function tests and relief valve adjustments
- Flow tests for pilot, main, and auxiliary hydraulic circuits
Heating and Air Conditioning System
- Air conditioning refrigerant handling and compressor diagnostics
- Cab air filtration, blower motor, and heater function tests
- Evaporator core airflow checks and system pressure diagnostics
For complete service information, also see:
35G Excavator Repair … TM12894
John Deere 35G Excavator Diagnostic Operation and Test Manual (TM12891)