RISK ASSESSMENT
QPP147 Section 2 Rev. March 07
B9. Damage to the crane or reduced
stability when working with a
heavy load with a long boom.
B9. When lifting a load the boom flexes and increases the working radius. This is more noticeable
with a very heavy load or long boom. Allow an extra margin below the rated lifting capacity to
compensate for the increased working radius.
B10. Overload due the increased
flexure of the boom when the
load is lifted suddenly.
B10. Lift the load off the ground carefully. Hoist the load vertically and pause briefly when the load
is just off the ground to confirm the sling and that there is no overload. Then resume hoisting.
B11 Damage to crane or reduced
stability if the load is lifted off
the ground by derricking or
extending the boom.
B11. Never lift the load off the ground by derricking or extending the boom. Wait until the load is
just off the ground before derricking or extending the boom.
B12 Collision with people under the
load when slewing. People
under the load or in contact
with the slewing load or crane
parts could be killed or
seriously injured.
B12 Before moving the load sideways check that it is safe to do so. The path of the load or crane
should be clear of people or obstructions.
B13 Collision or dropping of load on
people.
B13. Do not move the suspended load above people’s head.
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