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DISASSEMBLE AND ASSEMBLE UNLOADER VALVE ASSEMBLY - Continued
DISASSEMBLE AND ASSEMBLE OIL TEMPERATURE BYPASS VALVE ASSEMBLY - Continued

Maintenance Manual For Hydraulic Excavator 230Lcr And 230Lcrd With Rock Drill 2
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TM 5-3805-280-24-2
Compressor
22
DISASSEMBLE AND ASSEMBLE OIL
16
TEMPERATURE BYPASS VALVE ASSEMBLY
1. Remove parts (9--12).
2. Remove four cap screws (21) and remove cover (4).
3. Remove O-ring (6) and remove element (5).
4. Remove two cap screws (15)
5. Separate valve assembly (8) and remove gasket (7).
6. Repair or replace parts as necessary.
7. Install gasket (7) in between valve assembly bodies.
8. Install two cap screws (15).
9. Install O-ring (6) and element (5).
10. Install cover (4) and four cap screws (21).
11. Install parts (9--12).
CED,OUOE039,13 1915APR991/1
REMOVE AND INSTALL OIL FILTER
ASSEMBLY
CAUTION: The hydraulic oil tank is pressurized.
High pressure release of oil from pressurized
system can cause serious burns or penetrating
injury. Release pressure from tank by loosening
vent plug.
1. Loosen vent plug (1) to release air pressure from
hydraulic oil tank.
1--Vent Plug
Continued on next page
CED,OUOE039,22 1916APR991/3
20-14


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