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APPENDIX: TROUBLESHOOTING
Problem
Cause
Solution
The hoist does not work
The emergency stop button is activated.
Deactivate the emergency stop button.
A fuse is triggered.
Check the fuse for the main power supply.
Check the control voltage fuse.
For instructions on how to check or replace
the control voltage fuse, see Appendix
Checking the control voltage fuse.
The temperature control (optional) is
activated.
Allow the system to cool.
The contactor terminal screws are loose
(only with the hard wired control version).
Tighten the screws.
The main switch is turned off.
Turn on the main switch.
The load cannot be lifted
The hoist has an overload.
Reduce the load.
The friction torque limiter is worn or
incorrectly adjusted.
Replace or adjust the friction torque limiter.
For friction torque limiter adjustment
instructions, see chapter Adjusting the friction
torque limiter.
The braking path
1)
is more
than 10 cm (3.9 in).
The brake lining is worn.
Measure the brake lining (wear) and replace
the brake components, if necessary.
For instructions on how to measure the brake
wear see chapter Checking the brake lining.
The traveling
2)
or hoisting
direction does not
correspond to the direction
indicated on the controller
3)
The power supply is connected
incorrectly.
For the 3-phase hoist versions:
Change the
two phases of the power supply.
Abnormal noises are heard,
when the load is moving
The chain components are not lubricated
correctly.
Lubricate the chain components.
For lubrication instructions, see chapter
Lubrication.
The chain is worn.
Replace the chain.
For chain replacement instructions, see
chapter Replacing the chain.
The chain sprocket or the chain guide is
worn.
Replace the chain sprocket or the chain guide.
The idler (return) sprocket
4)
is worn.
Replace the idler sprocket.
For the 3-phase hoist versions:
A supply
phase is missing (the load is moving
slowly or not at all).
3)
Check the connection of the three phases.
1)
Braking path
: The braking path is the distance that the load travels from the moment when the operator releases the
direction button on the controller until the load stops completely.
2)
Traveling movement of the trolley: Valid only for the contactor controlled movement.
3)
Valid only for the 3-phase hoist versions.
4)
Valid only for the 2-fall hoist versions.