Maeda MC-305C-2 - Cautions before Crane Operation

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2.15 CAUTIONS BEFORE CRANE OPERATION
Not observing these cautions before operation may result in serious accidents.
• Verify that the emergency stop cancel switch, boom stowing
switch, and hook stowing switch are at the “OFF” position.
If these switches are at “ON” position, the operations will not stop.
• Over hoisting the hook block will activate the alarm buzzer of the
over hoist detector and the operation stops.
When the alarm buzzer sounds, release your hand immediately
from the winch lever (3) to the “NEUTRAL” position to stop raising
the hook.
Then, operate the winch lever (3) to “DOWN” (push forward) side
to lower the hook block.
• Extending the boom will hoist the hook block, activating the alarm
buzzer of the over hoist detector and the operation stops.
When the alarm buzzer sounds, release your hand immediately
from the boom telescoping lever (2) to the “NEUTRAL” position to
stop extending the boom.
Then, operate the boom telescoping lever (2) to “RETRACT” (pull
toward you) side to retract the boom.
• Use the horn switch to honk the horn to notify the people around
of the danger during the crane operation.
• Verify that all the outriggers are extended and set.
If any of the four outrigger extension lamps (2) or four outrigger
setting lamps (3) is flashing in red, the crane cannot be operated.