Continued from part 1
I'm going to show you step-by-step exactly how I modified a standard double pedal to work on a cajon.

Step 1. Remove the elbow linkage from the slave pedal.

2. Remove the end bolts/rings from the master pedal.

You may need another wrench to stabilize the axle.

3. Take out the bearings. They should pop right out.

4. Loosen the cam before you slide out the axle.

The axle should come right out now.

5. Detach the chain so you can flip the cam around
Continued in part 3