TM 9--2350--292--20--1
0102 00--2
HOIST WINCH BRAKE FAILS TO HOLD A LOAD -- CONTINUED
0102 00
C
1. Install 0--4000 psi testing gauge assembly with
1/4--inch tee between hoist and main winch directional
control valve assembly port PHL and attaching hose.
2. Install 0--4000 psi testing gauge assembly with
1/4--inch tee between hoist and main winch directional
control valve assembly port PHR and attaching hose.
3. Start main engine, energize hydraulics, and set
engine speed to 1800 rpm (TM 9--2350--292--10).
Observe gauges.
4. Shut down hydraulics and main engine
(TM 9--2350--292--10).
Are pressures at ports PHL and PHR less than 50 psi?
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 B
WARNING
CONTINUED ON NEXT PAGE
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