Preparing for crane operation
172
Vehicle inclination
Only after having supported and levelled the vehicle properly it is allowed to operate the crane.
Declination indicator
Every crane support control station has a declination indicator.
5°
When the air bubble is in the middle, the vehicle is levelled.
When the air bubble is between the two circles, the vehicle inclination is
between 0° and 5°.
Work up to 60° boom position
Level the vehicle as horizontal as possible, however within 3° inclination.
Working above 60° boom position
(refer to chapter 8, 'Crane working position').
Level the vehicle exactly. The air bubble is in the inner circle.
Danger!
Vehicle inclination of more than 1° reduces the guide function of the
extension booms and leads to side loading of the boom system. There
is an acute danger of accident.
Vehicle inclination must not exceed 1° in any direction.
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