TM 9--2350--292--20--1
0097 00--8
BOOM FAILS TO OPERATE OR OPERATES ROUGHLY -- CONTINUED
0097 00
M
Is pressure at port 205 385--470 psi?
CONTINUED FROM STEP L
no
yes
CONTINUED ON NEXT PAGE
1. Remove gauges and tees from right boom limit
valve and reconnect hoses.
2. Install 0--4000 psi testing gauge assembly with
3/8--inch tee between left boom limit valve port
205 and attaching hose.
3. Install another 0--4000 psi testing gauge
assembly with 3/8--inch tee between left boom
limit valve port 203 and attaching hose.
4. Start main engine, set speed to 1800 rpm, and
energize main hydraulic system
(TM 9--2350--292--10).
5. Read gauges and record pressures.
6. Shut down hydraulics and main engine
(TM 9--2350--292--10).
Go to Step P.
N
Are hoses and fitting free of leaks and damage?
no
yes
1. Remove subfloor plates 10, 11, 12, 15, 18, 23
and 31 (WP 0454 00).
2. Inspect hoses and fittings from boom safety
valve to boom limit valves and to stayline
cylinders for leaks and damage.
Tighten leaking connections. Replace
damaged hoses and connections
(Chapter 19). Verify fault is corrected.
Is pressure at port 203 385--470 psi?
no
yes
Notify Direct Support
Maintenance.
WARNING
