TM 9--2350--292--20--1
0097 00--20
BOOM FAILS TO OPERATE OR OPERATES ROUGHLY -- CONTINUED
0097 00
AJ
Is pressure at port 205 greater than 315 psi?
CONTINUED FROM STEP L
no
yes
CONTINUED ON NEXT PAGE
1. Start main engine, set speed to 1800 rpm,
and energize main hydraulic system
(TM 9--2350--292--10).
2. Record pressures at left boom limit valve
port 203 and left boom limit valve port 205.
3. Shut down hydraulics and main engine
(TM 9--2350--292--10).
Go to Step AM.
AK
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.
