Maintain your classic excavator with the John Deere 490D and 590D Repair Manual (TM1390). Focus on mechanical reliability and uptime.
### **Repair Highlights:**
* **Engine Overhaul:** Complete mechanical specs and timing for D-Series motors.
* **Hydraulic Componentry:** Rebuilding instructions for control valves and pumps.
* **Specs:** OEM torque settings and wear tolerances for all components.
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