There are 5 different connectors on a spur along with the spacer plate and only 1 of the connectors is needed. Assemble the connector that will work for the turnout you are going to use this ground throw with by pushing it into the end of our slide bar. I do this before cutting it off the spur because it gives more to hold onto. Push in until the connector bottoms out, no glue required. Attach the ground throw to the turnout throw bar, center the points between the stock rails and raise the handle of the ground throw to the vertical position. Make sure the turnout throw bar and the ground throw slidebar are in a straight line. In the center of the slot in the ground throw base there is a 1/2 diameter, use this wide spot (half moon) to mark the road bedfor the center of a hole that the stationary contacts will go through. Remove the ground throw from the turnout, and drill a 3/8 hole (some modelers drill a 7/16 diameter instead for more room) where you marked the road bed. Now for at least the first ground throw do the following at a table because the moving contact can act like a spring. To assemble the 220S break the metal plate off the bottom of the stationary contacts by folding it back and forth. (The part with 3 legs) Install the legs thru the slot in the ground throw with the legs extending out the bottom and the high spot of the V-bend facing the ground throw slide bar, install the rigid hook into the slot in the ground throw. The other side of the plastic top will flex to lock into the base of the ground throw. There are 2 Phosphor-Bronze moving contacts (only one is required). Push the slotted side down along side the stationary contacts and the solid side will go in the pocket on the top of the slide bar. There is a small spur that has 2 keepers and a spacer that has three holes in it. Cut off one of the keepers off,and looking at it from the end it will look like a "T". I grab the leg of the "T" with a locking forceps (the locking feature works bestfor me, a wide blade tweezers works also) and force it into the pocket with the smooth side locking the moving contact into place. This will be 90 degrees to the base. The last thing to do is to slide the spacer over the stationary contacts. The plastic piece that has 3 holes in it is a contact spacer for the stationary contacts to prevent them from shorting out. At this point the switch stand is completely assembled and ready to re-install on the layout, I like to solder leaders on to the contacts before installing so I am not soldering above my head after installation. I like to use the forceps as a heat sink to protect the ground throw. Now you can re-attach the ground throw to the turnout just like any of our ground throws and fasten in place.
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8511 W. Mound Rd. Lena IL. 61048-9697 | Phone: 815-369-5195 |
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