this article describesDoosan DX350LC hydraulic Excavator HYDRAULIC CONTROL UNIT Disassembly Instructions


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IMPORTANT


Different versions in relation to the position of the cable harness are possible.

In this connection,pay attention to the Specifications of the Vehicle Manufacturer.














1. Figure 78,shows complete control unit.


 





2. Mark the installation position of different covers,the








thousing and the cable harness with the valve housing.


3. Loosen socket head screws.

4. Separate duct plate,1st gasket,intermediate plate and 2nd gasket from the valve housing.

(S)Box spanner (Torx TX-27)-5873042002
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5. Remove retaining clip.


6. Loosen socket head screws.

7. Separate cover from housing and cable harness. (S)Box spanner (Torx TX-27)-5873042002





8. Disassemble opposite cover.

9. Disconnect pressure regulator and remove cable hamess.







10.Loosen socket head screws,remove fixing plate and pressure regulators (3x).

(S)Box spanner (Torx TX-27)-5873042002









11. Loosen two socket head screws and locate housing provisionally,using adjusting screws.(Housing is spring loaded).Then loosen remaining socket and screws.

(S)Box spanner (Torx TX -27)-5873042002

(S)Adjusting screws -5870204036










12.Separate housing from valve housing by loosening adjusting screws uniformly.

(S)Adjusting screws -5870204036









13.Remove components(Figure 87).

14. Remove opposite pressure regulators,housing and components accordingly (Figure 88).




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