For indicating the reference point on a timing belt rail of a Marantec comfort. Supplied per piece and assembled by parkeerapparatuur.nl

If your Marantec garage door opener no longer knows the up and down positions, a lost reference cam may be the solution. You clamp this cam to the timing belt rail to indicate the reference point so that your garage door stops on time.

We supply this ridge pre-assembled. So you don't need the special seaming pliers!