andyvh1959
Well-known member
Few years back I replaced the VERY noisy screw drive OH door opener in my attached garage with a new 1/2HP Chamberlin belt drive opener. Much better, but then of course other noises become more obvious. Few weeks back I replaced a failed torsion spring, and while doing that I better aligned the center support cradle (was too high) to straighten out the torsion rod. I've had this house since 2002 and I until I replaced the door opener I had never worked on the opener. I also noticed the RH end bracket was about an inch higher on the wall than the LH end bracket, so I reset that as well. Goes up and down fine, but is noisy, squeaky. I replaced the panel rollers with nylon/sealed bearing parts thinking that would do it. Only slightly quieter. Doubt its the hinges as they really don't muve much. Applied grease onto the center bar the door carriage follows, only slightly better (never had greased it before). Belt tension is not too high, belt shows some slack/droop as the door goes down. I suspect the belt wheel at the door header is the noise source, but its just a nylon toothed wheel turning on a bolt. Any ideas? It works fine, just noisy for a belt drive opener.
