Doosan DX300L Excavator Front Idler Roller Disassembly Guide

This illustration show you guide on how to disassemble front idler roller for Doosan DX300L excavator.

Procedures:
1. Remove plug (9, Figure 15) from idler assembly (1), and drain into a suitable container.Doosan DMS-5 Diagnostic software
2. Separate the pin (6, Figure 16) from the bearing (3).
3. Use a press to remove the bearing from the axle (4).
Separate the O-ring (8, Figure 17) from the axle.

 



4. Detach the floating seal (7, Figure 18) from the idler (2) and bearing (3).

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5. Use a press to separate the axle (4, Figure 19), O-ring (8) and bearing (3).
6. Remove bushing (5, Figure 20) with the press and special tool (10, ST-1909).

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