INSTALL GEAR, BOLT AND FIRST BEARING

Install 4 x M8 washers onto the hobbed bolt then a 608 bearing.

Once installed, does the hobbing on the bolt line up with the small hole going through the extruder body?

If you need to adjust it's location, you can add either a 0.50mm or 1.0mm shim washer to get the correct spacing.

Does the hobbing line up with the hole in the center?