Specifications

18
Pro-Series
Fenner Drives
311 W. Stiegel St.
Manheim, PA 17545-1010
800-243-3374
FAX [phone]
Installation
1. Turn belt with tabs to the inside before installing.
2. Determine direction of drive rotation.
3. Align belt directional arrow with drive rotation.
4. Fit belt in nearest groove of smaller sheave.
5. Roll belt onto larger sheave, turning the drive slowly. Belt may
seem very tight; this is okay. DO NOT jog motor.
6. Check to see all tabs are still in their correct position and are not twisted out of alignment.
7. For multiple belt drives, work belt from groove to groove. On particularly wide drives, it
may be easier to install half the belts from the inboard side and half from the outboard.
Note: With drive ratios around 1:1, it may be necessary to add back one link to allow belts
to be rolled on. This does not apply if using Alternative Installation Method.
Alternative installation Method
1. Set motor to mid-position of adjustment range and mark base
clearly.
2. Determine required belt length as in “Measuring Belt Length.”
3. Push motor forward to minimum center distance.
4. Install belts as in “Installation.”
5. Pull motor back to previously marked mid-position.
Retensioning
Like all high-performance V-belts, PowerTwist
®
Plus™ V-Belts require the maintenance of correct drive tension to operate
efficiently. Experience indicates that drive tension should be checked after 24 hours running at full load. Retensioning may
be necessary depending on the severity of the drive. Any initial belt stretch is then taken up. Subsequently, belt tension
should be checked periodically and adjusted when necessary.