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Step 1. Begin the tune-up by
lubricating the door tracks, pulleys and rollers. Use a lightweight oil,
not grease, for this job. The grease catches too much dust and dirt.
Step 2. Remove clogged or
damaged rollers from the door by backing off the nuts that hold the
roller brackets. The roller will come with the bracket when the bracket
is pulled free.
Step 3. Mineral spirits and kerosene ate good solvents for cleaning
roller bearings. Let the bearing sit for a half-hour in the solvent.
Then brush away the grime build-up with an old paint brush or
toothbrush.
Step 4. If the rollers are ma a lot of noise as they move over the
tracks, the tracks are probably out of alignment. To fix this, check the
tracks for plumb. If they are out of plumb the track mounting brackets
must be adjusted.