Eliminate the cylinder retainer ring. Use a wrench-like ring remover to remove the retaining ring within the lock cylinder. Put the retainer ring somewhere you will find it afterwards when reassembling the lock. Measure the setback. The setback refers back to the length from your door’s edge (exactly where the https://trevorowdjl.popup-blog.com/26470490/5-simple-statements-about-replacement-garage-door-key-explained