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11-3
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 complet-
ed.
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 circu-
lated 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 neu-
tral position.
(2)
Start the engine. (Hydraulic pump is
directly 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
turnover prevention device.
(6)
Turn ON the voice switch.
Interlock for crane-crawl operation
Crane
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