Page 23 - Goodyear2011PTMaintenanceManual

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Poly-V ® Belt
INSTALLATION GUIDE
IDENTIFY CORRECT BELT
Always select belts to match sheave grooves.
MATCHING BELTS
Matching multiple belts is not necessary for most Poly-V ®
belt drives. If you encounter a special application calling
for matching, specify “matched belts” on the order.
HOW TO INSTALL BELTS
After you correctly install and align the sheaves, you can
install the belts.
Always move the drive unit so you can easily slip the belts
into the grooves without force.
Never force belts into a sheave with a tool such as a
screwdriver or a wedge. Doing so may damage the ribs or
break the cords.
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Refer to table 14 to determine if enough clearance exists for belt
installation and take-up.
For example, if you are installing a 220J8, the minimum allowance
below center distance is ½ inch. If you are working to maintain
tension, the minimum allowance above center distance for belt
take-up is also ½ inch.
TENSION
Proper tension is essential for maximum belt life and effciency.
Improper belt tension is the primary cause of premature belt failure
and increased costs. Under-tensioned belts lead to slippage,
overheating, and noise, all of which lead to higher maintenance
costs and ineffcient transmission of power. Also, over tensioning
belts leads to premature wear, along with bearing, shaft, and pulley
problems. The result is more frequent replacement of drive
components and costly downtime.
Table 14 POLY-V ® BELT RECOMMENDED
INSTALLATION AND TAKE-UP ALLOWANCES
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