TM 9--2350--292--20--1
HOIST WINCH BRAKE FAILS TO HOLD A LOAD -- CONTINUED
0102 00
Is pressure less than 460 psi?
1. Start Enhanced Diagnostics System (para
3--3j) and select corresponding symptom.
2. Start main engine, energize hydraulics, and
set engine speed to 1800 rpm
(TM 9--2350--292--10).
3. Record pressure at hoist winch motor test port.
no
yes
D
E
1. Record pressures at hoist and main winch
directional control valve assembly port PHL
and port PHR.
2. Shut down hydraulics and main engine
(TM 9--2350--292--10).
Are pressures at ports PHL and PHR less than 50 psi?
Notify Direct
Support Maintenance.
yes
no
Replace hoist winch
directional control valve
(WP 0556 00). Verify
fault is corrected.
Replace hoist pilot valve in
hydraulic control valve man-
ifold assembly (WP 0562 00).
Verify fault is corrected.
CONTINUED FROM STEP A
END OF TASK
0102 00--3/4 blank