If the chain hoist is not working or functions other than as expected, a malfunction of the chain hoist may be the cause.
|
Fault |
Possible cause |
Eliminating the fault |
|
The chain hoist does not lift or lower; hoist motor does not hum when a button on the pendant control is pressed. |
No mains voltage. |
Check the power line. See Connecting the chain hoist. |
|
Power line not correct. |
Check the rotary field and phases. See Connecting the chain hoist. | |
|
Emergency stop button pressed. |
Unlock the emergency stop switch. | |
|
Bayonet couplings of the power connection cable or control cable are not properly inserted. |
Insert the bayonet couplings. See Connecting the chain hoist. | |
|
Broken wire in the control cable. |
Replace the control cable. | |
|
Pendant control is defective. |
Replace the pendant control. | |
|
With electronic control: control is defective. |
Replace the control. | |
|
With direct control: pendant control is defective. |
Replace the control. | |
|
The chain becomes worn very quickly. |
The chain is not sufficiently lubricated. |