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.
system. There is an acute danger of accident.
Vehicle inclination must not exceed 1° in any direction.
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