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DISASSEMBLE AND ASSEMBLE PROPORTIONAL SOLENOID VALVE
DISASSEMBLE AND ASSEMBLE PROPORTIONAL SOLENOID VALVE - Continued

Maintenance Manual For Hydraulic Excavator 230Lcr And 230Lcrd With Rock Drill 2
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TM 5-3805-280-24-2
Hydraulic System
Pressure setting of proportional solenoid valve will
1. Keep the parts for each solenoid valve together.
need to be adjusted. (See Proportional Solenoid
Valve Test and Adjustment in Group 9025-25.)
When removing the solenoid coil (F), do not lose
spring (G).
2. Repair or replace parts as necessary.
Only remove the lock nut (B) and adjusting screw
3. Install washer (R) and plate (Q).
(D) if replacement of O-ring (C) is necessary.
TX,33,UU3793
1921SEP982/5
4. Apply clean oil to sleeve (P) and O-rings (M, N and O).
5. Install sleeve so ports align with ports in manifold (S).
M--O-Ring
N--O-Ring
O--O-Ring
P--Sleeve
S--Manifold
TX,33,UU3793
1921SEP983/5
Continued on next page
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