If memory serves, the conveyor drive motor has a drive shaft on both ends. To change the conveyor direction, you need to change the drive sproket gear to the opposite shaft from the one used now, which means the motor needs to be mounted in the opposite direction. In other words, the motor itself is not reversible, as it's powered by single phase electrical power.
To verify this information, I'll call my office tomorrow, and I'll post back to you.
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