Tangent Scale Models PS-2CD 4000 Instructions Manual page 11

10. Attach the A end uprights: Using sprue nippers, carefully degate and clean the A end
uprights found on the "End frames" sprue. Cut the tops of the end uprights square using sprue
nippers. Test fit on A end, and then cement so that the uprights fit into the holes at the top and
directly between the end uprights molded into the body. It should also sit right on top of the
coupler box in the center. (See photo in step 11 of B end upright installation for guidance).
Tangent Scale Models 11 PS-2CD 4000 Kit Assembly Instructions