Had a customer tell me something that made me rethink door zone adjustments

Last week a building super in Chicago told me I was wasting time by always tightening door rollers to factory spec. He said on older units, looser is better because the rails warp over time and tight rollers just bind up. I argued with him at first but tried his way on a 1984 Otis and it ran smoother than anything I'd done before. Has anyone else found that old buildings need different settings than what the manual says?

2 comments

2 Comments

nina_harris3924d ago

idk, factory spec is just a suggestion once the building hits 30 years.

linda_wood24d ago

My 1965 Chevelle ran fine for 20 years past its factory spec lol.