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.