TM 9--2350--292--20--10097 00--23BOOM FAILS TO OPERATE OR OPERATES ROUGHLY -- CONTINUED0097 001. Record pressures at boom shutoff valve port Aand boom shutoff valve PILOT port.2. Shut down hydraulics and main engine(TM 9--2350--292--10).CONTINUED FROM STEP APAQIs pressure at port BSI 0 psi?noyesGo to Step AT.ARIs pressure at PILOT port 0 psi?noyesGo to Step AS.Is pressure at port BSO 0 psi?yesnoNotify Direct SupportMaintenance.CONTINUED ON NEXT PAGERecord pressures at boom safety valve port BSOand boom safety valve port BSI.
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