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Page Title:
FOUR VALVE BANK FUNCTIONS (SWING, LIFT, TELESCOPE AND HOIST) DO NOT OPERATE OR OPERATE SLOWLY. (Cont) |
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 TM 9-2320-364-34-1
OPERATION TEST
(1) Start engine (TM 9-2320-364-10).
(2) Set WINCH/CRANE switch to CRANE
position.
(3) Set hydraulic selector switch to
CRANE/SRW position.
(4) Operate one of the four functions on
the four valve bank while pushing in
the MHC SYSTEM HYDRAULIC
PRESSURE VALVE MANUAL
OVERRIDE push button.
(a) If function does not operate,
solenoid valve assembly and four
valve bank are suspect. Perform
Steps (5) through (8) below and
go to Step 3 of this Fault.
(b) If function operates, system
hydraulic pressure valve is faulty.
Perform Steps (5) through (8)
below and repair solenoid valve
assembly (Para 16-34).
(5) Set crane POWER switch to OFF
position.
(6) Set hydraulic selector switch to OFF
position.
(7) Turn OFF ENGINE switch.
(8) Install safety wire on MHC SYSTEM
HYDRAULIC PRESSURE MANUAL
OVERRIDE push button.
2-477
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