HOIST MOTOR CONTROL VALVE INSTALLATION
EQUIPMENT CONDITIONS: All hydraulic systems shutdown and pressure relieved from
lines. (Refer to TM 5-3810-306-20.)
Negative battery cable disconnected at shunt.
(Refer to TM 5-3810-306-20.)
1. REMOVE HOIST MOTOR CONTROL VALVE (4).
Caps (14), (15) and (16) are installed
with spring tension. Remove caps
a. Tag hydraulic lines to control valve (4).
carefully to prevent parts from
popping out and causing personal
and hydraulic line (3) from control valve (4).
Remove and discard packing (9).
2. REMOVE CAP PACKINGS (17), (18) AND (19).
Remove hydraulic hose (10), fitting (12) and
a. Remove caps (14), (15) and (16) from control
preformed packings (11) and (13) from control
valve. Discard packings (11) and (13).
b. Remove and discard packings (17), (18) and
(7) securing valve (4) to hoist piping. Remove
e. Remove and discard packing (8) from valve (4).
If internal parts are removed from
valve (4), ensure that positioning is
noted and maintained.
The only repair authorized on hoist
motor control valve (4) is the
replacement of cap packings.