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5.
Make sure the load has enough room to be free to move: no obstructions must be present along its
travel.
6.
Make sure no other sound than the hoist can be heard
7.
Have a clear view on the load. Other wise use spotters with appropriate means of communication.
They shall be in direct contact with the operator
8.
Select each hoist one by one and move it just that far that it is under tension and pick up the load
9.
Before moving the load check for twists in the load chain.
10.
Level the load before lifting.
11.
Select the travel direction of all hoist connected to the load
12.
Move the load by operating the go button of the associated controller.
13.
Raise the load only enough to check the attachments to the hook and load are firmly seated.
14.
Move the load slowly to avoid shock and jerking of load chain. If there is any evidence of overloading,
immediately lower the load and remove the excess load.
15.
Stop at intermediate heights to check if the structure is still in the required position
16.
When the hoist is are at trim height apply a secondary safety if required. Follow the instructions as
given in the chapter “safety instructions”
17.
Switch of the hoist main circuit breaker to avoid un intended operation
5.2
LOWERING AND DISCONNECTING THE LOAD
It shall be noted that lowering a load suspended on multiple hoist incorporates many more risk of overload as
lifting.
If one hoist is not following the lift sequence it is very likely it immediate is overloading itself, its suspension
point and the pickup point at the load:
1.
Switch on the main circuit breaker of the hoist controller
2.
Check if the travel path of the load is free of obstructions
3.
Clear the area from people
4.
Make sure no other sound than the hoist can be heard
5.
Select the operation direction to “down” for each hoist connected to the load
6.
Have a clear view on the load. Other wise use spotters with appropriate means of communication.
They shall be in direct contact with the operator
7.
Activate all hoist by pressing the “Go” button
8.
Check if all hoist are running. If not lift the load to its original position and solve the problem
9.
Lower the load till the hoist are un loaded
10.
Remove the hoist from their load. Use if possible its own lifting chain to place it back in its flight case.
11.
Disconnect the power supply from the hoist
12.
Disconnect the lifting chain
13.
Make sure the chain is fed back in the chain bag in an appropriate way without getting entangled.
