The load shall be well secured and properly balanced in the sling or lifting device before it is lifted more than a few inches.
During hoisting, care shall be taken that:
There is no sudden acceleration or deceleration of the moving load.
Load does not contact any obstructions.
A derrick shall not be used for side loading except when specifically authorized by a responsible person who has determined that the various structural components will not be overstressed.
When rotating a derrick, sudden starts and stops shall be avoided. Rotational speed shall be such that the load does not swing out beyond the radius at which it can be controlled.
No hoisting, lowering, or swinging shall be done while anyone is on the load or hook.
The operator should avoid carrying loads over people.
The operator shall test the brakes each time a load approaching the rated load is handled by raising it a few inches and applying the brakes.
Neither the load nor boom shall be lowered below the point where less than two full wraps of rope remain on their respective drums.
Boom and hoisting rope systems shall not be twisted.
Before starting to hoist, the following conditions shall be noted:
Hoist rope shall not be kinked.
Multiple part lines shall not be twisted around each other.
The hook shall be brought over the load in such a manner as to prevent swinging.