TM 9--2350--292--20--1
0097 00--11
BOOM FAILS TO OPERATE OR OPERATES ROUGHLY -- CONTINUED
0097 00
1. Remove gauges and tees from port BSI and attaching hose at
hydraulic control valve manifold assembly and reattach hoses.
2. Install 0--4000 psi testing gauge assembly and 1/4--inch tee
between boom shutoff valve PILOT port and attaching hose.
3. Install 0--5000 psi dial pressure gauge and 1/2--inch tee
between boom shutoff valve port A and attaching hose.
4. Start main engine, set speed to 1800 rpm, and energize main
hydraulics (TM 9--2350--292--10).
5. Read gauges and record pressures.
6. Shut down hydraulics and main engine (TM 9--2350--292--10).
CONTINUED FROM STEP S
T
Is pressure at port BSI 0 psi?
no
yes
Go to Step W.
U
Is pressure at PILOT port 0 psi?
no
yes
Go to Step V.
Is pressure at port BSO 0 psi?
yes
no
Notify Direct Support
Maintenance.
WARNING
WARNING
CONTINUED ON NEXT PAGE
1. Remove gauge and tee from port 203 and reattach hose.
2. Install 0--4000 psi testing gauge assembly with 3/8--inch tee
between boom safety valve port BSI and attaching hose.
3. Install 0--4000 psi testing gauge assembly with 1/4--inch tee
between boom safety valve port BSO and attaching hose.
4. Start main engine, set speed to 1800 rpm, and energize main
hydraulics (TM 9--2350--292--10).
5. Record gauges and record pressures.
6. Shut down hydraulics and main engine (TM 9--2350--292--10).
