Locate the Inner and Outer Spring Arms, shown in the animation.

The spring arm is easy to assemble, but the small posts are a very tight fit, so be careful when assembling them. Note that each arm half has an “inside” and “outside” to it.

Slide two sleeved R4ZZ bearings on to the outer spring arm posts as shown.

Next, press the inner spring arm on to the two mating posts that are on the outer spring arm. (Ensure the curvature of the spring arms are in the same orientation)

This is a very tight fit. You can get each side started by aligning the holes in the inner spring arm over the posts in the outer spring arm and then tap them into place with the handle of your P2 screwdriver. You want the pins fully seated.

Install the remaining two bearing with sleeves onto the R4 Bearing Bushing Block. There are 3 posts for bearings. You will be installing the bearing on the top and bottom posts. The middle post will be left empty.

A video demonstration can be found here.