John Deere 50C ZTS Excavator Diagnostic Operation and Test Manual
(TM2056)
- 📑 Table of Contents Overview:
- General Information
- Safety guidelines and service precautions
- Machine inspection and maintenance recommendations
- Torque values for bolts and hydraulic fittings
- Operational Checkout Procedures
- Engine ON system function tests
- Hydraulic control and pressure verification
- Blade function, travel tracking, and system speed checks
- Engine Diagnostics
- Engine cooling and lubrication system troubleshooting
- Fuel injection timing and pump performance tests
- Compression pressure testing and valve lash adjustments
- Electrical System
- Wiring diagrams, fuse specifications, and circuit checks
- Battery, alternator, and starter motor troubleshooting
- Monitor controller diagnostics and key switch testing
John Deere 50C ZTS Excavator Diagnostic Operation and Test Manual
- Power Train
- Track adjuster and recoil spring function
- Travel gearbox and propel motor diagnostics
- Swing bearing wear assessment and maintenance
- Hydraulic System
- Hydraulic pump operation and regulator adjustments
- Control valve diagnostics and relief valve pressure testing
- Swing motor, travel motor, and pilot system function tests
- Heater and Air Conditioning System
- Cab heater circuit diagnostics
- Blower motor and evaporator core maintenance
- Cab door and window seals check
John Deere 50C ZTS Excavator Diagnostic Operation and Test Manual
- For complete service information, also see:
- 50C ZTS Excavator Repair ………. TM2057
- 120 Series Hydraulic Cylinders ………. CTM114319
- JDG10274 Ultrasonic Undercarriage Measurement Gauge ………. CTM10001