How To Set a Pusher Spring
Incorrect positioning of a pusher spring is always a massive problem within the industry when you are installing Electrical or Manuals Operated Doors, here’s our quick tip below.
On a manual door the pusher spring only acts as a buffer.
On an electrically operated doors the pusher springs must be fully charged when the doors are open. If the pusher springs are not fully charged the cables will fall off the drum when closing.