The spring loosening problem of Fast rolling shutter door

The spring loosening problem of Fast rolling shutter door

Fast rolling shutter door spring needs two people to complete, first of all, the force clamp clamp on the shaft near the spring seat, one person will tighten the spring rod inserted into the tight spring seat and force upward, the other person will loosen the two square screws on the spring seat and insert the other tight spring rod into the other tight spring hole, two people evenly force down. After reaching the predetermined number of turns, a square screw will lock the spring in the keyway of the shaft, and another screw will lock the shaft. The elastic spring should be added or subtracted on the basis of each half of the original number of turns for safety; To add or subtract, try the gate to see if you need to add or subtract more turns. Do not increase the number of spring laps at a time, otherwise the door will run out of track if the spring is too tight.

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