TM 9-2320-366-34-1
CONTROL VALVE FLOW AND PRESSURE TEST
Cont
(Continued from previous page)
(14) Connect hose to port A of telescopic cylinder.
(15) Disconnect hose from port B of telescope
cylinder.
(16) Connect hydraulic tester between hose and
port B with test hose and adapter.
(17) Start engine (TM 9-2320-366-10-1).
(18) Increase engine rpm to 1250-1450 rpm (TM
9-2320-366-10-1).
(19) Position MHC main power switch to ON
(TM 9-2320-366-10-1).
(20) Operate MHC telescopic cylinder out
(TM 9-2320-366-10-1), perform flow
test and note flow reading.
(21) Operate MHC telescopic cylinder in (TM 9-2320-
366-10-1), perform pressure test and
note pressure reading.
(22) If flow is not 7 gpm (26.5 lpm) for telescopic
cylinder in or 12 gpm (45 lpm) for telescopic
cylinder out, replace control valve (para 16-59).
(23) If pressure is not 3000-3100 psi (20685-21375
kPa), replace eight bank valve assembly
(para 16-59).
(24) Position MHC main power switch to OFF
(TM 9-2320-366-10-1).
(25) Position PTO switch to off
(TM 9-2320-366-10-1).
(26) Disconnect test hose and hydraulic tester from
port B.
(27) Connect hose to port B of telescopc cylinder.
(28) Stow crane (TM 9-2320-366-10-1).
(29) Shut down engine (TM 9-2320-366-10-1).
j7. M1089 MATERIAL HANDLING CRANE (MHC) BOOM DOES NOT TELESCOPE IN OR OUT (CONT)
2-1058
