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2023年9月22日星期五

How to Disassemble Doosan Hydraulic Excavator the Walking Motor

 
How to disassemble Doosan DX520LC and DX480LC Hydraulic Excavator the walking motor


Sectional View

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Seal Kits and Component Groups
NOTE:      Observe   the  following  notices  when  carrying  out
repair work at hydraulic aggregates!


1.      Close all points of the hydraulic aggregates.

  

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 2.      Replace all seals.

NOTE:      Use only original spare parts


  3.      Check all sealandsliding surfaces for w ear.

NOTE:      Rework of sealing area f. ex.  with crocus cloth

can damage surface.


 

4.      Full up hydraulic aggregates with hydraulic oil before start- up.


 5.      Seal kit for driveshaft.


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6.      External seal kit.


 


 

7.      Housing.


 

 

8.      Complete rotary group.

 


9.      Port plate with control piston and counter-balance valve.


 10.    Relief valve / Make up check valve.

 



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11.    Replace seal nut.

NOTE:      First measure and record setting height.

 

 

12.   When  tightening,  counter  hold setting screw, then check setting height.

 

 



 

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