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DoosanDX340LC Crawler Excavator Cabin Disassembly Guide

已有 304 次阅读2024-3-17 07:36 |系统分类:科技教育分享到微信

this article mainly introduces the dismantling of the doosanDX340LC crawler excavator cabin

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DoosanDX340LC

CAUTION!
Avoid disassembling cabin if there are strong wind gusts,
which could catch large surface area of cabin shell and
push it sideways during lift.
1. Park on firm and level ground.

2. Lower front attachment (bucket) to ground.


3. Shut down engine.


4. Set safety lever on "RELEASED" position.


5. Turn starter switch to "I" (ON) position.






WARNING!
If engine must be run while performing maintenance, use extreme care. Always have one person in the cabin at all times. Never leave the cabin with the engine running.


6. Fully stroke work levers (joysticks) in all directions to


relieve pressure from accumulators.


7. Set safety lever on "LOCK" position.


8. Turn key to "O" (OFF) position and remove from starter
switch.


9. Hang maintenance warning tag on controls.

10. Disconnect the battery cable from the negative (-) battery
terminal.


11. Prepare cabin shell for removal by disconnecting wiring
connectors for:

A. Cabin interior lighting.
B. External light wiring.
C. Radio antenna and connections.
D. Wiper/washer connections.

NOTE: Control console wiring harnesses and hydraulic
piping lines that pass through the floor of the
cabin do not need to be disassembled.
NOTE: If unit is equipped with a cabin protective
structure (for forestry, or hazardous working
conditions), it must be removed
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12. Remove floor mat.

13. Remove operator's seat (1, Figure 2).

NOTE: Be careful not to damage seat covering.

14. Remove duct covers (2, 3 and 4, Figure 2). When removing cover (2) disconnect hour meter connector and cigar lighter connector. Disconnect main harness connector before removing cover (4).







15. Remove pocket (5, Figure 2) before removing side panel (6, Figure 2).


16. Remove air duct (1, 2 and 3, Figure 3) at right side of

cabin. Disconnect duct wiring connector before removing

duct (2).
17. Disconnect washer hose at floor plate bottom.








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18. Remove cover (5, Figure 4) on left side dash cover (3) and bolts (1, Figure 5).

NOTE: When removing cover, disconnect speaker wire.

19. Remove two rubber stops (2, Figure 4) used in storing the front lower glass. Remove bolts (1) from the rear left and right dash covers. Remove left side cover (3).

20. Lift right side dash cover (4, Figure 4) and disconnect speaker wire. Remove cover.





21. Remove three bolts (2, Figure 5) after disconnecting the

speaker and antenna wires. Remove stereo assembly.



22. Disconnect cabin light wiring connector.

23. Disconnect cabin ground cable (7, Figure 2).




24. Remove four mounting nuts from four corners of cabin floor

(2, Figure 6).


25. Remove four hex bolts (3, Figure 6) from door side of cabin

floor.

26. Remove two hex bolts (1, Figure 6) from right side of cabin

floor and one bolt (4) from front of cabin floor.






27. Using a suitable lifting device, attach slings to four lift

points on top of cabin (Figure 7).

NOTE: Cabin weighs approximately 290 kg (639 lb).

28. Lift cabin approximately 25 - 50 mm (1" - 2") above deck.

Check that all electrical connections have been

disconnected and all other items unbolted.

29. Continue lifting with the assist crane to remove the cabin

shell. Lower the shell to a prepared safe blocking support.







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