Furukawa Unic URW376C4U -T Series, Operation & Maintenance Manual

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11-2
HOW TO OPERATE CRANE
Preparation before operation
★
In winter time, do not rush to operate the crane even after the steps
illustrated above, preparation before operation, have been completed.
Run the hydraulic pump for a while to warm it up.
★
Since viscosity of hydraulic oil is too high when the oil temperature is
low, high-speed running of hydraulic pump fails the oil to be circulated
so that the pump may be damaged.
★
Do not let anyone stand under or in front of the hook as it swings
when it is released from the hook holder.
Failure to do this may invite an accident.
WARNING
CAUTION
①
Make sure that each lever for controlling
the crane and the outriggers is at its neutral
position.
②
Start the engine. (Hydraulic pump is direct-
ly connected to the engine.)
③
Make sure crane-crawl levers are locked.
④
Turn the operation mode switch to outrig-
ger mode. (Outrigger mode indicator lamp
goes on.)
⑤
Turn ON the alarm buzzer switch on the
turn over prevention device.
⑥
Turn ON the overwinding alarm switch.
Interlock for crane-crawl operation
Crane