19
GB
8. Removing from service and storage
The hoist
Never release the load from the hoist if this load is not supported properly
The hoist maybe be stored without load providing it is placed indoors in a cool, dry place.
The control cable being fitted with a plug in connector, it is possible to disconnect the pendant control from the hoist or the hoist with
trolley to prevent the hoist to be use by an unqualified person
9. TROUBLESHOOTING
Hoist
Problem
Possible cause
Actions
The hoist will not operate
Main cut off switch off
Set it to “on” position
Emergency stop activated
Desactivate the emergency stop
Power supply cut
Check all the electrical connections
Electrical limit switch activated
Move in the opposite direction and adjust
the limit switch
Limit switches inoperative
Call an approved service shop
Fuse inoperative/circuit
Change the fuse and check the electrical
connections
Contacts on transformer or pendant control
station fautly open thermal protectior
Call an approved service shop
Power supply phases reversed
Have an electrician change the electrical
power supply
Operates in one direction
Electrical limit switches damaged
Call an approved service shop
Contactor coil burnt out or open coil
Call an approved service shop
Poor rotation of lifting motor with muf-
fled noise
Faulty power supply
Check the supply voltage
Significant voltage drop
Check that voltage is correct and there is
no overload
Electromagnetic brakes does not open
Check the brake gap and call an approved
service shop
Faulty gearbox
Call an approved service shop
Overload
Check and reduce the load
Faulty friction clutch
Call an approved service shop
Loss of one phase
Call an approved service shop