Belt Inspection
To inspect the drive belt, do the following:
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Inspect belt for hour-glassing (extreme circular wear in at least one spot and on both sides of the belt). Hour glassing occurs when the drive train does not move and the drive clutch engages the belt.
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Inspect belt for loose cords, missing cogs, cracks, abrasions, thin spots, or excessive wear. Compare belt measurements with a new drive belt. Replace if necessary.
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Belts with thin spots, burn marks, etc., should be replaced to eliminate noise, vibration, or erratic PVT operation.