Locking the wire drum
The drum lock blocks the wire drum. When the wire drum is locked it is possible to replace the wire without decreasing the spring tension.
Push the drum lock fixing pin as far as possible and turn it 90° using a flat screwdriver.
Make sure that the wire drum is locked.
Unlock the wire drum by turning the drum lock fixing pin back to the start position.
Make sure that the workload is attached and the spring tension is adjusted before unlocking the drum.
