M.T.H. Premier Bombardier Operator's Manual page 9

4. Attach the pilot to the bottom of the base. Then remove the coupler from the
truck and reattach the truck to the base.
5. Line the spacer & Kadee Coupler up w/the holes in the undercarriage and screw
them down.
6. Reassemble the undercarriage in reverse order.
Bombardier Passenger Set
9