TM 9--2350--292--20--1
0097 00--10
BOOM FAILS TO OPERATE OR OPERATES ROUGHLY -- CONTINUED
0097 00
Q
Are hoses and fittings free of leaks and damage?
CONTINUED FROM STEP L
no
yes
CONTINUED ON NEXT PAGE
1. Remove subfloor plates 10, 11 and 12 (WP 0454 00).
2. Inspect hoses and fittings from hydraulic control
valve manifold assembly to right boom limit valve
subplate for leaks and damage.
Tighten leaking fittings.
Replace damaged hoses
and fittings (WP 0577 00).
Verify fault is corrected.
R
Are boom limit valve actuating levers free of binding?
no
yes
1. Remove air intake grilles beside both boom stayline
arms (WP 0415 00).
2. Inspect boom limit valve actuating levers for binding.
3. Shut down hydraulics and engine.
Free binding levers. Verify fault
is corrected. If levers cannot be
freed of binding, notify Direct
Support Maintenance.
Verify fault is corrected.
CONTINUED FROM STEP F
S
Is pressure 0 psi?
no
yes
1. Install a 0--4000 psi testing gauge assembly with
3/8--inch tee between left boom limit valve subplate
port 203 and attaching hose.
2. Start main engine, set speed to 1800 rpm, and
energize main hydraulics (TM 9--2350--292--10).
3. Read gauge and record pressure.
4. Shut down hydraulics and main engine
(TM 9--2350--292--10).
Go to Step X.
WARNING
