Page 20 - Goodyear2011PTMaintenanceManual

20
Poly-V ® Belt
INSTALLATION GUIDE
Inspect Sheaves
The following sections outline installation procedures that will ensure
maximum life and performance for your Poly-V® belts.
Check sheaves for cleanliness, damage, and wear whether you
are replacing an existing belt, performing routine maintenance, or
installing a new drive.
Minimum Sheave Diameter
If the sheave driver is a standard electric motor, refer to Table 12
to be sure that the sheave diameter selected will meet the
National Electrical Manufacturers Association Standard for
minimum sheave diameters for electric motors. If the motor
sheave is smaller than the minimum diameter shown in this
table, increase the sheave diameter so that the motor sheave will
conform with the chart unless either an oversize or outboard
bearing is installed.
Perform further inspection if possible. Use the Groove
Dimension table below (Table 13) to determine if excessive wear
has occurred or to select replacement belts and sprocket cross
sections.
Table 12
1
Table 13 Groove Dimensions
WARNING
Disconnect power supply to the machine before removing
or installing sheaves or belts.
WARNING
Do not reinstall damaged or worn sheaves on equipment.