Furukawa Unic URW370C4U Series, Operation & Maintenance Manual

Page: 86 / 248

11-8
HOW TO OPERATE CRANE
3
Check that the operation mode is select-
ed to “OUTRIGGER” at this time and
voice message, “Outrigger mode, Outriggers
moving, Outriggers moving”, sounds and the
outrigger mode indicator lamp on the control
panel
lights.
If the outrigger mode indicator lamp fails to
be lit, turn the operation mode switch to
“OUTRIGGER”.
4
Pull outrigger operation lever toward
you to extend the vertical cylinder to set
it up on the ground.
(Do not extend and retract the inner box after
vertical member of outrigger has been set
up.)
5
Select the outrigger you want to operate
with the outrigger operation switch con-
cerned and pull the outrigger operation to
extend and retract the outrigger while moni-
toring a level so that the crane body can keep
level with the crawler raised by approx. 2in.
(50mm).
(Since two or more of outriggers cannot be
extended or retracted at the same time,
extend or retract outriggers separately.)
6
Turn the operation mode switch to
“crane”.
The voice message, “Crane mode, Crane
mode”, is heard and the yellow lamp goes
off.
7
Unwind the hook by controlling the
hook winding up/down lever to loosen
it from its stored position.
Do not stand under or in front of the hook as
it may swing during this operation.
Unwind the hook until the weight for over-
winding alarm is detached from the hook and
the alarm buzzer stops sounding.
This can start the crane operation.