TM 9--2350--292--20--1
0097 00--21
BOOM FAILS TO OPERATE OR OPERATES ROUGHLY -- CONTINUED
0097 00
AL
Is pressure at BSO port 385--470 psi?
CONTINUED FROM STEP AK
no
yes
CONTINUED ON NEXT PAGE
1. Start main engine, set speed at 1800 rpm,
and energize hydraulics (TM
9--2350--292--10).
2. Record pressure at boom safety valve BSO
port.
3. Shut down hydraulics and main engine
(TM 9--2350--292--10).
Notify Direct Support
Maintenance.
AM
Is hose and fittings free of leaks and damage?
no
yes
1. Open left and right side engine deck grilles and
exhaust deflectors (TM 9--2350--292--10).
2. Inspect hose and fittings between right and left
boom limit valve subplate for leaks and
damage.
Tighten leaking fittings.
Replace damaged hose
and fittings (WP 0578 00).
Verify fault is corrected.
Replace hose from
boom safety valve to
boom shutoff valve (WP
0576 00). Verify fault is
corrected.
CONTINUED FROM STEP AJ
Verify fault is corrected.