Start a new bag 18.

On the front of the right frame, remove this 1" hex standoff with 3/16-32 threaded male end. There is also a washer, o.d. 0.379 x 0.048.

In the middle inside of the right frame, remove this 3/8 nut. There is a split washer on the inside and a regular washer on the outside, plus a screw-in post with 3/16-32 threads.

On the back of the right frame, unscrew the #8-36 screw holding the gear.