In article , "Bob" wrote:
I'm almost embarrassed to ask this. I have two sixteen foot wide garage
doors and both make a lot of squeaking and crunching noise when opened or
closed. The one on the house attached garage has an opener which works fine
except in cold weather (that's below about 40 degrees), when it opens fine
but balks on closing. Opener stops, light blinks, etc. I may need to
adjust the downward force. But first, I need to lubricate the doors.

That's my question.

I made the same mistake; wasted a lot of time lubricating all
the rollers. I subsequently found that the bearings in many
of the rollers were shot. Replacing them was not a huge task
but the lube effort was a complete waste of time. And greasing
up the new rollers as I installed them was a heck of a lot
easier than trying to push lube into the old rollers.

I'd suggest you examine the complete system thoroughly and then
figure out a rational course of action.

In your case, it's quite possible that previous applied
lubricant is part of the problem. If and when you do apply
lubrication, make sure it's suitable for those very low
termperatures.

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