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230 REMOVE AND INSTALL RIGHT BOOM CYLINDER CONTROLLED LOAD LOWERING VALVE
REMOVE AND INSTALL BOOM CYLINDER

Maintenance Manual For Hydraulic Excavator 230Lcr And 230Lcrd With Rock Drill 2
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TM 5-3805-280-24-2
Hydraulic System
5. Disconnect pipes (C and E).
6. Disconnect hoses (A, B, D and F).
7. Remove four cap screws (G), flange (H) and valve (I).
Replace parts as necessary.
Right Side Valve
A--Hose
B--Hose
C--Pipe
D--Hose
E--Pipe
F--Hose
G--Cap Screw (4 used)
H--Flange
I--Valve
CED,OUOE020,35 1914MAR993/3
REMOVE AND INSTALL BOOM CYLINDER
33
3360
143
NOTE: Procedure is the same for both left and right
boom cylinders; right boom cylinder is shown.
1. Retract arm and bucket cylinders. Lower boom so
bucket in on the ground.
Stop the engine.
Continued on next page
TX,33,UU3810
1922SEP981/5
21-175


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