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Installing a Tenmille Ground throw on Aristo Craft #6 switch.
You will need a saw, exacto knife, a pair of needle nose pliers, 2-56 tap and drill, 2-56 1/4 inch screws, 2-56 3/8 inch screws, 2-56 inch nuts, Brass stock .020 thick by 3/16 or 1/4 inch wide, a 5/32 drill bit, brass tubing with inside diameter of 5/32 inch or large and a outside diameter of less then 1/4 inch, Aristo Craft #6 Switch and a Tenmille Ground Throw from LLagas Creek Railways.
| Installing a more realistic looking hand throw on the switch. This project should take about an hour. First you need to remove the aristo craft with motor and mounting bracket. The mounting bracket needs to be shaved down flush with the post. This will be the surface that you will mount the tenmille ground throw to. Next line up the tenmille ground throw with on the mounting bracket and drill two holes through the mounting bracket and into the base of the Tenmille ground through. Then tap out the base of the Tenmille ground through and install the 2-56 1/4 inch screws. The reattach the mounting bracket to the desired side of the switch. The ground throws usually tend to be in the inside curve of the switch when and where clearance and operations will allow.
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| Next you will need to make a new throw rod/bar. You will need to cut the brass bar about 3 to 4 inches in length. At the one end of the you will need to drill out a 5/32 inch hole. After the hole is drilled out you will need to put a 90 degree bend about 1/8 inch below the hole.
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| Center the switch points and ground throw and then turn the switch over. Insert the end of the hole in the throw bar over end of the link assembly on the tenmille ground throw and lay it over the throw bar connected to the switch points. (You make want to check and adjust all the screws on the under side of the switch before you get to this point) Drill 2-56 inch hole through the plastic throw bar and brass plastic throw bar of the switch. You will want to local the at least a 1/4 away from the from the switch points to leave clearance for the flange way. Next tap out the hole in the plastic throw bar for 2-56 3/8 inch long screws and install the screw. Turn the switch back over and in install the 2-56 inch nut on the end of the screw. |
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| Make sure the switch points and ground throw are still centered. Adjust the by turning the end of the linking pin so that the hole just comes through the hole of the brass throw bar. Next position the switch so that the end of the is at the maximum distance from the tenmille and position the brass so bar so that it is also in the same position as when it was adjusted to the linkage hole. Next measure the distance from the brass throw bar to the tenmille, this will be the distance of spacer you need to cut from the brass tubing. Throw the tenmille over and insert the brass tub spacer over the linkage assembly. You have to carefully flex the brass throw bar out of the way while ding this. Reinsert the brass throw bar over the linkage assembly and insert the throw bar over the linkage assembly. Then insert a pin to kept the throw bar on and in place. I use a railroad spike and bend the end over with pliers to keep it from falling out. If I need to remove the throw bar or switch I cut the spike with my nippers and insert a new spike when I'm done. |
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Two additional improvements:
First:
| If the switch binds up with throwing it. The contact screw may need to be removed. If you are using battery power then you can remove it to be safe. If you are using track power you will need to solder a connecting wire from the contact to one of the switch points to ensure electric conductivity. |
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Second:
| If you are not using track power. You can remove all the electric contact connections(this can be done if you use track power but the contact switch will have to be protected some how). You can cut out the black plastic triple tie area and make appearance of the switch look more prototypical. |
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