TM 9--2350--292--20--10097 00--4BOOM FAILS TO OPERATE OR OPERATES ROUGHLY -- CONTINUED0097 00noyesGo to Step K.GIs pressure at PR TEST port 385--470 psi?CONTINUED FROM STEP FnoyesCONTINUED ON NEXT PAGE1. Remove 0--5000 psi dial pressure gauge fromhydraulic control valve manifold assembly and installthe gauge with 1/2--inch tee between the boomshutoff valve port A and attaching hose.2. Install 0--4000 psi testing gauge assembly with1/4--inch tee between boom shutoff valve PILOTport and attaching hose.3. Install another 0--4000 psi testing gauge assembly inthe PR TEST port of the hydraulic control valvemanifold assembly.4. Start the main engine and main hydraulics(TM 9--2350--292--10). Set engine speed to 1800rpm.5. Read gauges and record results.6. Shut down hydraulics and main engine(TM 9--2350--292--10).Is pressure at boom shutoff valve pilot port 385--470 psi?Is pressure at port A greater than 0 but less than 60 psi?noyesNotify Direct SupportMaintenance.Notify Direct SupportMaintenance.WARNING
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