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 TM 9-2320-364-34-1
Do not get under LHS when disconnecting or
connecting connectors and hoses. A hydraulic
malfunction could cause LHS to lower causing
serious injury or death.
OPERATION TEST
(1) Raise hook arm approximately 24 in.
(61 cm) (TM 9-2320-364-10).
(2) Loosen connector screw and
disconnect connector from safe
lowering solenoid valve on port VB
side of RH hook arm manifold.
(3) Set hydraulic selector switch to
MAN HA.
(4) With the aid of an assistant, attempt to
load using cab joystick while pushing
in hook arm safe lowering button.
(a) If hook arm does not load, perform
Steps (5) and (6) below and repair
RH hook arm manifold at port VB
(Para 17-13).
(b) If hook arm loads, perform
Steps (5) and (6) below and repair
LH hook arm manifold at port VB
(Para 17-13).
(5) Turn OFF ENGINE switch.
(6) Set hydraulic selector switch to OFF
position.
2-277
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