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August 2003 - Page 23

Brake-end detail. Note brake cylinder mounted on pad with supports. Use a piece of .020 x .040 styrene strip, trimmed to fit, to represent the vertical piece of steel running alongside the left tank bracket from the bottom lip to the slopped end-sheet. The control valve is mounted on an Sshaped bracket. Make the first part of the bracket with 3/64" styrene angle. Trim one end to a point to fit a #68 hole and make the angle approximately 18 " long. After drilling a #68 hole on the left side of the far right triangle bottom sill bracket, secure the angle in place. Make the top portion of the bracket from .020 x .080 styrene strip x 15" long and secure to the top of the angle away from the air tank. The Atlas brake cylinder is mounted on a pad that is placed next to and even with the top of the coupler pocket and supported with two triangular supports from the coupler assembly. Make a pad from .020 x .156 styrene strip, cut 12" long, and mount on the left side of the coupler assembly. Then make the two triangular styrene brackets from .030 x .125 styrene strips using a NWSL Chopper s 45 angle, removing just a little bit of the angle tip with a razor blade before placing under the pad and securing in place. Trim off the brake rod on the brake cylinder and drill a #72 hole in the back and front of the brake cylinder and secure to the pad, centering between the two vertical uprights for the brake mechanism on the end ladder assembly. There is a small round tube located between the brake cylinder and the vertical piece of steel running alongside the left tank bracket. Make a 9 " long tube from .035 styrene rod and mount in place. Trim the InterMountain control valve by removing the top two protruding pieces and trimming one side to approximately match the prototype control. Determine the orientation by finding the side that has three blocks and drill four #78 holes on the center block in two rows of two. Mount the control valve on top of the S-bracket with

Note S-shaped control valve bracket and brake piping. the four holes facing the brake air tank. Install two pieces of .015 brass wire from the air tank to the top two holes of the control valve and run one piece from the back of the brake cylinder to the lower left hole on the control valve. Make a new 5 ' 9 " long vertical brake beam from .020 x .060 strip styrene. Next, drill two #78 holes, 3" and 21" from the bottom for the brake linkage and the brake cylinder. Using .015 brass wire, form a small loop through the second hole on the vertical brake beam and feed the wire through the hole on the front of the brake cylinder and then secure the vertical brake beam in place vertically. The brake linkage line, made from .015 brass wire, runs through the bottom hole and connects to the brake lever in front of the brake-end hopper. The horizontal brake beam on the prototype runs from the body to the end ladder assembly, with the top of the angle level just above the brakewheel. Make a new horizontal brake beam from a 4' 6 " long piece of 3/64" angle. Attach this horizontal brake beam to the body and the vertical brake beam, making sure it will match the end ladder assembly. The InterMountain kit includes the end pieces of the train air line, including the angle cock and air hose. Place the non-airhose end into the modified center opening,

Note horizontal brake beam and vertical strip to the left of relocated tank. trimming if necessary, and mount using the support mounted on the train air line in the hole provided and to the lower part of the coupler box assembly. Then, run one piece of .015 brass wire from the lower right hole on the control valve to the top of the train air line above the support mount (see Photos 7-9). The Plano roofwalk set includes the coupler platforms. Drill two new #76 holes for the Plano platforms, using the end holes on the metal template, on each end ladder assembly. Trim the bottom of each interior vertical support to clear the coupler platform. Secure the platforms on the proper ladder assemblies. The horizontal brake beam mounts to a small pad on the brakeend ladder assembly, mounted behind and just above the brake mechanism. Install a 15" long piece of.020 x .080 strip styrene to represent this pad. Install the kits bottom ladder rungs and long end grabirons and drill a #78 hole in each coupler lift bar bracket. Before installing the brake mechanism, trim away the molded plastic chain (see Photo 10). The ladder braces have a row of small rivets on the angle part that faces outward. Starting with the brake end, attach one left and one right ladder brace by placing the rectangular end of the brace in each locator hole on the end of the body. Make sure the long angle section of the brace is installed


Ladder assembles with Plano coupler platforms.



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