TM 9--2350--292--20--1
HOIST WINCH CREEPS WITH CONTROL IN NEUTRAL -- CONTINUED
0101 00
yes
no
Notify Direct
Support Maintenance.
D 1. Start Enhanced Diagnostic System program
(WP 0086 00) and select corresponding
symptom.
2. Start main engine, energize hydraulics, and set
engine speed to 1800 rpm
(TM 9--2350--292--10).
3. Record pressures at hoist and main winch
directional control valve assembly port PHL
and port PHR.
Are pressures at port PHR and PHL less than 50 psi.
CONTINUED FROM STEP A
E
1. Record pressures at port CH4 of filter valve
manifold and winch motor test port in hoist
winch motor counterbalance drain port.
2. Shut down hydraulics and main engine
(TM 9--2350--292--10).
Are all pressures 140 psi or less?
yes
no
Replace hoist and main winch
directional control valve assembly
(WP 0556 00). Verify fault is corrected.
Fault corrected.
END OF TASK
0101 00--3/4 blank
