Axis Dyno Moto VX-12, User Manual, Page: 35 / 48

3.b - Dyno Mechanical
3.b.1 - Belt Tension Adjustment
Belt tension should not need to be changed but can be checked using one of the following:
1.
Pluck the belt like a guitar string and measuring the frequency using a phone guitar tuner
app. Belt tension should be between 62 to 70 Hz
2.
The belt should deflect 5/16” with a 30 lb force at the center of the span
If the belt tension is wrong, use the following procedure:
1.
Loosen the two 3/8 bolts located behind the tensioner and next to the drum
2.
Adjust the belt tension from the top using the long 1⁄2-13 bolt
3.
Tighten the 3/8 bolts and check the tension again. Repeat if necessary.
3.b.2 - Blower Belt Replacement
3.b.3 - Centering The Blower Wheel
3.b.4 - Centering Drum
3.b.5 - Changing Blower Bearings
3.b.6 - Changing Drum Bearings
3.b.7 - Rust Treating The Drum
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