(1) Attempt to operate hoist and then
boom lift using HOIST and BOOM
control levers while holding TELE
control lever in the IN position
(a) If hoist and boom lift do not
operate, perform Steps (2)
through (4) below and notify DS
(b) If hoist and boom do operate,
check valve in four valve bank
center manifold is faulty.
Perform Steps (2) through (4)
below and notify DS Maintenance.
(2) Set crane power switch to OFF
(3) Set hydraulic selector switch to OFF
(4) Turn OFF ENGINE switch.