Neighbor complaining of a rattling noise. Didn't take more
than a moment to determine chain is slack on his GDO.
Simple fix -- end of story.
But, got me wondering as to the potential downside of a
"slack" chain -- beyond the noise and *eventual* wear
on it and the drive bar from that rubbing.
OTOH, a *taut* chain is a recipe for premature wear in
This adjustment is in series with the chain -- i.e., the attachment of the
chain is via a variable length (threaded rod) member; shorten it and the
chain is effectively tightened. *It* doesn't "move" (with wear).
I'm just curious as to the downside of a slack chain (assuming it is not
Screw drive openers hae minimum size requirements placed on the
garage! I bought one for my BinL as a gift. It sat in an unopened box
until long after they sold their condo: couldn't *cut* the screw to
make it fit in the space they had available (a chain drive would
have been relatively easy to alter).
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