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3.4 CRANE OPERATION
Perform the following operations before crane work.
1. Shift the lock lever (1) into the free (F) position.
2. Change the mode to Crane with the mode selector switch
(1) (Travel/Outrigger/Crane) on the monitor or the left
control lever.
[ HOOK RAISING AND LOWERING ]
Operate the right operation lever (1) as follows:
• Lowering: Push the lever forward.
• Neutral: Release your hand from the lever.
The lever will return to the “NEUTRAL” position
and the raising/lowering of the hook block stops.
• Raising: Pull the lever to the rear side.
[ BOOM DERRICKING OPERATION ]
Operate the right operation lever (1) as follows:
• Lower: Push the lever forward.
• Neutral: Release your hand from the lever.
The lever returns to the “NEUTRAL” position and
the boom derricking stops.
• Raise: Pull the lever to the rear side.
[ BOOM TELESCOPING OPERATION ]
Operate the left control lever (2) as follows:
• Extension: Push the lever forward.
• Neutral:
Release your hand from the lever.
The lever returns to the “NEUTRAL” position
and the boom telescoping stops.
• Retraction: Pull the lever toward you.
[ SLEWING OPERATION ]
Operate the left control lever (2) as follows:
• Left slewing: Push the lever to the left.
• Neutral:
Release your hand from the lever.
The lever returns to the “NEUTRAL” position
and the slewing stops.
• Right slewing: Push the lever to the right.