Generator Belt Tension Adjustment
Applies To: (Spinner® ChronoSpinner® Chrono™ Power bike.™ Power models only)
About
This procedure provides instruction to verify and make adjustments to the Generator belt tension. The belt tension should be verified anytime the flywheel is removed, the belt is replaced, at regularly scheduled preventative maintenance, or when there are any unusual belt related issues (noises, low charging voltages, etc.) while operating the bike.
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CAUTION: Improper belt tension adjustment will cause premature wear and may void the Precor Limited Warranty. |
Specifications
| System Component | Specification |
|---|---|
| Generator Drive Tension | 1/2 in (1.3 cm) up/dwn travel |
Procedure
Review entire procedure before starting.
- Remove the front and rear drive belt covers, see Belt Guard Cover Replacement.
- Remove all brake resistance by turning the resistance knob counter clockwise (-).
- Measure the belt tension up/down travel.by positioning a ruler next the belt edge while firmly pressing down and releasing the belt. The belt up/down travel should be within 1/2 in (1.3 cm) up/dwn travel
- If the belt tension is within spec., tension adjustment is not required.
- If the belt is not within spec., continue belt tension adjustment.
- Loosen the generator 4 mm hex key mounting bolt enough so that the generator can be moved forward and rearward. Do not remove the mounting bolt.
- Slowly hand rotate the pedals and make sure the belt is correctly seated on the generator and flywheel generator pulleys.
- Adjust the belt tension by sliding the generator forward or rearward as needed so that there is 1/2 in (1.3 cm) up/dwn travel. Measure the belt travel.by positioning a ruler next the belt edge and measuring the belt down travel distance while firmly pressing down on the belt (The belt should be tensioned to half the full up/down travel spec distance).
Belt tension check
Belt tension adjustment
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CAUTION: Do not over tension the belt which will lead to premature belt wear and possible damage to the generator pulley. |
- Fully tighten the 4 mm generator mounting bracket bolt.
- Ride and pedal the bike at high speed for several minutes and verify there are no issues with the belt (unusual noised etc.).
- Slow down and stop the pedals and flywheel. Verify that the belt tension travel remains at 1/2 in (1.3 cm) up/dwn travel.
- Reinstall the front and rear drive belt covers, see Belt Guard Cover Replacement.
- Verify the bike operation per Operation Verification Checklist and return to service.
See Also