The John Deere 350D and 400D Articulated Dump Truck Repair Technical Manual (TM1941) is the mechanical authority for units up to SN 608489.
### **Repair Coverage:**
* **Heavy-Duty Engine:** Full overhaul specs for high-horsepower diesel units.
* **Transmission:** Detailed teardown and assembly of the heavy drive system.
* **Axles & Brakes:** Service for planetary final drives and wet brakes.
* **Dump Body:** Hydraulic lift cylinder repair and hinge maintenance.
Ensure factory-level accuracy during major repairs with this official workshop guide.
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