Construct the rear bumper by stacking six 3½” strips on top of each other, next to another six 3½” strips joined at the ends with fish plates and ½” bolts. Lock nut two tension springs to the top bolts to represent electric and hydraulic connectors.  A coupling is bolted to the lower 3½” strips, and angle brackets and obtuse angle brackets form the coupling. 

Using ½” bolts in the top strips, bolt the bumper to the 1½” angle girder. 

One hole from the rear, lock nut a 2” threaded rod (Fig 6b), and two holes later another 2” rod in the U girder. Lock nut two 1½” narrow strips on to form steps.  Do this on both sides.

Note the two ¾” bolts (Fig 6c). They are bolted to the 2½” x 5½” plate to form stops for the bogies. They stop the bogies from spinning 180 degrees when transporting and only allow limited bogie travel left and right.

1½” strips (Fig 7b) hold the top three center 2½” strips (Fig 7b) together. On the lower 2½” strip, obtuse angle brackets and fishplates hold the bottom two 2½” strips on.

Place 3/8” bolts (Fig 9b) through the holes in the boilers to mount them to the chassis.  Secure a ½” pulley as the fuel filler. The opposite wheel flange is bolted in place on the 4½” rod through the semicircular gap at the end of the boiler.

Join three more 3” x 1½” plates to three more 1½” x 1½” plates as above and form a box using angle brackets and 1½” x 1½” plates as the ends.  Bolt collars (Fig 10b) into the top middle holes of the end plates to allow the lid to be screwed down.

Secure eight ¾” flanged wheels face to face with 1” rods. Use part #825a (thin strip reverse angle brackets) (Fig 10c) secured to the bosses of the ¾” flanged wheels. The reverse angle brackets are then bolted to the underside of the chassis.