How to adjust the lock of hand-arc shutter door

1. Before debugging, loosen the locking screw on the door lock limit mechanism of hand-arc rolling shutter door, and pull the circulating chain by hand to make the door curtain about 1 m off the ground.

2. Try the "Up", "Stop" and "Down" buttons first, and observe whether the lifting, stopping and descending functions of the hand-arc shutter door are sensitive and reliable.

3. If it is normal, you can raise or lower the hand-arc shutter door to a certain position, rotate the limit screw sleeve of the door lock, adjust and touch the roller of the microswitch, and tighten the locking screw after hearing the "tick" sound. Thus, the door lock of the manual arc shutter door is adjusted.