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TM 9-2320-364-20-3
2-2557
(1) Loosen six screws, clips and
remove crane junction box cover.
(2) Set multimeter select switch to volts.
(3) Connect positive (+) multimeter
lead to crane junction box
terminal 15.
(4) Connect negative () multimeter
lead to a known good ground.
(5) Turn ON ENGINE switch
(TM 9-2320-364-10).
(6) Set hydraulic selector switch to
SRW/CRANE position.
(7) Set crane main POWER switch to
ON position.
(8) Set remote control ON/OFF
EMERGENCY STOP power switch
to ON.
(9) Put remote control unit HOIST
control lever in the UP position.
(a)
If 22 to 28 vdc are not present,
perform Step (10) below and
repair black wire from truck
remote control connector to
terminal 15 (see schematic
Fig 2-58) or notify DS
Maintenance.
(b)
If 22 to 28 vdc are present,
perform Step (10) below and go
to Step 7 of this Fault.
(10) Put the following switches in OFF
position: remote control ON/OFF
EMERGENCY STOP power switch,
crane main POWER switch,
hydraulic selector switch and
ENGINE switch.
VOLTAGE TEST
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive electrical
circuits, a direct short may result. Damage to equipment, injury or death to personnel may occur.
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