Furukawa Unic URW376C4U -T Series, Operation & Maintenance Manual

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9-15
DESCRIPTION OF EACH CONTROL DEVICE
5
After the outriggers have been set up
properly and the buzzer is making no
alarm sound, check that the alarm buzzer
starts to make an intermittent sound (beep,
beep) when the two adjacent outriggers are
retracted gradually.
6
Check also that the alarm buzzer makes
a continuous sound (bee •••• ee) when
the two adjacent outriggers are retracted fur-
ther.
7
In the condition that the alarm buzzer is
making a continuous sound (bee •••• ee),
following crane operation will become impos-
sible:
• Extension of boom
• Lowering boom
• Winding-up hook
• Slewing boom
TS-100
RUN
ERR
ch. D
ch. C
ch. B
ch. A
ZERO
RESET
Control box of turn over
prevention device
“ZERO RESET”
switch
Lamps indicating
self-diagnosis
Beep ・ ・ ・