TM 9--2350--292--20--1
0097 00--3
BOOM FAILS TO OPERATE OR OPERATES ROUGHLY -- CONTINUED
0097 00
D
Is pressure 3900--4100 psi?
CONTINUED FROM STEP C
no
yes
CONTINUED ON NEXT PAGE
1. Remove auxiliary winch cover (WP 0513 00).
2. Disconnect quick--disconnects at auxiliary
winch.
3. Start the main engine and main hydraulics
(TM 9--2350--292--10).
4. Set engine speed to 1800 rpm
(TM 9--2350--292--10).
5. Place auxiliary winch control handle in the
INHAUL DETENT position.
6. Set spade control handle to RAISE position and
record pressure gauge readings.
7. Shut down hydraulics and main engine
(TM 9--2350--292--10).
Go to Step F.
E
Are hoses and valve free of damage and leaks?
no
yes
1. Remove subfloor plates 10 and 20
(WP 0454 00).
2. Inspect load sense hose, from boom directional
control valve to pressure hoses, check valve
and center pump for leaks and damage.
3. Shut down hydraulics and engine.
Repair or replace
leaking and/or dam-
aged hoses and valve
(WP 0556 00). Verify
fault is corrected.
Notify Direct Support
Maintenance.
F
Does boom fail in the stow range?
CONTINUED FROM STEPS C AND D
no
yes
1. Operate boom with engine at 1800 rpm
(TM 9--2350--292--10).
2. Watch to identify what range boom fails in.
Go to Step R.
FORWARD
