Slide the carriage assembly into the 1st stage assembly from the front. It may help with installation to lift the carriage up from the bottom and angle it forward a bit. Slide the carriage down and return it to a vertical position.
Once in, the front/back bearings in the carriage and the 1st stage should both be on the same side.
Bolt the 3/4" OD Radial Bearings into the Bearing Blocks on the backside of the carriage as indicated in green.
At this point, the elevator carriage should be able to move smoothly up/down, and a small amount of wiggle left/right and front/back is to be expected. This ensures the elevator will not bind.
