The right side does indeed need to be reversed. I am sorry about that. We should have caught it here in the factory. I am adding an additional check at the end of our listi.
To reverse the R&P:
1) Loosen the tension arm (bolt that runs through the spring) with a 6mm hex key till it comes off.
2) loosen the collar on the eccentric bearing at the pivot point. There is a set screw that should be facing upward.
3) loosen the shoulder bolt at the pivot point. Remove the plate from the machine.
4) Loosen the tensioner mounting block. It uses a 3/16" socket.
5) Switch the tensioner receiver (the part that the bolt with the spring was threaded into) to the other side. Keep it loose enough to be turned.
6) Install the pivot arm on the opposite side. When it's torque down, install the collet and tighten on the shaft. Be sure the collet is sitting in the eccentric bearing groove.
7) Install the tensioner mounting block on the other side. It should be facing straight down.
8) Thread the tensioner bolt into the receiver. The receiver should be rotated to align with the threads. After you've threaded it in a few turns, tighten the receiver down fully.
9) Tighten the tensioner bolt down till it is compressing the spring roughly 1/8".
If you have any other questions about this let me know.