This item is one drive belt to suit a Lortone 3A rock tumbler.
After a period of use, the drive belt may stretch and cause the drive shaft to stop rotating - if belt tension cannot be adjusted sufficiently by the drive motor screws, you will need to replace the drive belt.
Part J on the parts list (210-001)
Note from Lortone: To ensure proper motor life and performance, it is important that the drive belt be kept as loose as possible without slipping on the pulleys. Excessive tension can cause motor bearing failure. When oiling drive bearings, take care not to get oil on the drive belt as this may cause damage to the belt.
For instructions (with photos) on replacing the drive belt, please see the attached pdf document (click on the pdf icon) or see our YouTube video here.
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