TM
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CO
V EYORS
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V EYORS
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V EYORS
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12
V-BELT & SHEAVES
If provided on your drive package, v-belt tension & sheave alignment are important for extended belt life. Read the following
list for proper maintenance or installation.
1.
Never pound sheaves on or off a shaft. Make sure that the shaft diameter and sheave bore are properly sized.
If there are burrs caused by set screws or sharp edges on the keyway or keyseat, remove carefully with emery
cloth and/or file. Clean off metal particles and dirt from the shaft and sheave before installation.
2.
Sheaves must be in line with each other and installed on shafts which are parallel with each other.
3.
DO NOT FORCE
or use the drive to install a v-belt. Have driven components loose to install the belt(s).
4.
With available take-up tighten belts enough to keep from slipping during operation. Ideal belt tension is the lowest
tension at which the belt will not slip under peak load conditions. The drive side of the belt(s) should be straight
across and the slack side should show a slight bow.
5.
Do not place new belt(s) on worn sheaves.
6.
If multiple belts are used, replace all belts with a new set of matched belts.
7.
Do not use belt dressing on belt(s) which are slipping. Belt dressing will damage the belt and cause early failure.
Tighten belt(s) to proper tension, or if dirty, clean the belt(s) with a commercial rubber solvent.
CHECK V-BELTS AND SHEAVES ONLY WHEN CONVEYOR IS STOPPED!
FIGURE 11
DANGER
!
SPAN
FORCE
BELT
DEFLECTION
1/64" PER
INCH OF
SPAN
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