The John Deere 250D/300D Articulated Dump Truck Repair Technical Manual (TM2116) is the primary resource for mechanical service on earlier units (up to SN 609165).
### **Inside this Workshop Manual:**
* **Engine Overhaul:** Detailed repair for classic JD diesel units.
* **Transmission:** Full service for the ADT drive system and planetary axles.
* **Hydraulics:** Repairing loader and dump body control valves.
* **Technical Specs:** OEM torque values and wear tolerances.
Ensure professional accuracy during mechanical repairs with this official workshop guide.
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