The wind’s effect on the rear of the load
increases the load radius. This condition
can result in an overload hazard,
possibly causing the crane to tip or the
boom to collapse.
To avoid this hazard, reduce the
operating speeds and load.
Boom strength is affected most when
the wind acts on the side of the boom.
The boom can buckle and collapse if the
load contacts the boom.
Backward stability is affected by wind on
the front of the boom. This condition is
especially dangerous when the boom is
at or near the maximum angle when
operating without a load.
Wind forces on the front of the boom
reduce the normal forward-tipping effect
of the boom. The crane can tip or the
boom can collapse if this condition is not
avoided.
Forward stability is affected by wind on
the rear of the boom. Wind applies a
force to the boom and load that adds to
the crane’s overturning moment. This
action has the same effect as adding
load to the hook.
The wind’s effect on the side of the load
can cause the load to swing out past the
boom hinge pin. This condition can
result in excessive side load forces on
the boom, possibly causing the crane to
tip or the boom to collapse.
To avoid this hazard, reduce the
operating speeds and load.
FIGURE 3-65
A1074
To Next Page
Loading...
Need help?
General
