General Information
01-54 79032966 A Rev.
TABLE 3 Belt Turns Over in Sheaves
Symptom / Observation Possible Causes Corrections / Remedy
Belt turns over in sheaves
and runs or can turn over
and come off sheaves
when no reason can be
seen.
Excessive lateral belt movement. Properly adjust belt tension.
Trash or debris fell into sheave
grooves.
Clean trash and debris from sheave grooves.
Correct the cause of trash and debris entering
the grooves.
Make sure all protective shields are installed.
Sheaves not aligned. Align driver, driven, and idler sheaves.
Check alignment with drive loaded and
unloaded.
Properly adjust belt tension.
Worn sheave grooves (check with
groove gauge).
Replace worn sheaves.
Properly install a new original equipment belt
and adjust belt tension and idler spring.
Belt tensile members broken or
damaged from not correct
installation (belt forced onto
sheaves).
Properly install a new original equipment belt
and adjust belt tension and idler spring.
Intermittent or shock loading of
drive belt.
Correct the cause of intermittent and shock
loading of drive belt.
Belt strand lengths are not equal
(multiple strand or power band
belts).
Properly install a new original equipment belts
and adjust belt tension and idler spring.
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