MICRO-MARK Switch Tender 83201 Instructions page 2

If your track switch has already been installed, follow these instructions:
3/8"
Figure 9
Figure 10
Figure 11
Figure 12
Bend a square hook in the end of the steel wire as shown in Figure 9.
Slide the long end of the wire through the brass tube.
Drill a 1/16" diameter hole through the track roadbed and base board
adjacent to the throw bar hole as shown in Figure 10. Space the drilled
hole from the throw bar so that the tip of the hook will engage the hole
in the throw bar. Install the brass tube in the hole and engage the hook
in the throw bar hole. If the hook drags on the roadbed, adjust the
height of the brass tube and/or trim the wire before going any further.
On the lower end of the brass tube, make a right angle bend in the
steel wire as shown in Figure 11 in the direction of the motor. This
steel wire will now act as the throw rod crank.
Drill a 1/8" diameter x 1/2" deep hole at a distance 2" from the brass
tube in line with the bent steel wire. Remove the mounting bracket
clamping screw. Install the mounting bracket with the screw provided
as shown in Figure 12.
Install the brass wire through the hole in the motor shaft as shown in
Figure 13. Place the end of the wire through the hole, then wrap it
tightly around the motor shaft as shown. It will stay in an upright
position with a small amount of wobble.
Make an additional bend in the brass wire so it will engage the steel
wire throw rod crank as shown in Figures 14 and 15. Install the motor
by snapping it into the bracket while engaging the throw bar linkage,
and reinstall the clamping screw to hold everything in position. Trim the
ends of the throw rod wires as necessary for clear travel.
Electrical Hook-Up and Final Adjustment
Connect a resistor to either one of the motor leads using a wire nut as
shown in Figure 16. Be sure the motor lead is stripped sufficiently long
to form a tightly twisted pair with the resistor lead.
Use the remaining two wire nuts to temporarily connect the two wire
ends (one from the resistor and one from the motor) to a 12 volt DC
supply and adjust the motor position and wire linkage as necessary to
obtain a good throw of the track switch points. Tip: If the steel wire
throw rod crank (if used) slips out of the brass throw rod, move the
motor closer to the crank. Reverse the motor leads, and check
operation again. Then connect your final wiring.
Tech Support: 908-464-1094 www.micromark.com MMTechService@micromark.com
SWITCH TENDER
WIRING DIAGRAM
Copyright 2005 by
340 Snyder Avenue
Berkeley Heights, NJ 07922
Figure 13
Figure 14
Figure 15
Figure 16
If your turnouts already
route power to the frog
through the points, do not
use the extra contacts on
the toggle switch to power
the frog. If you have a very
many Switch Tenders, use
a power supply of sufficient
power to handle the load:
supply 1 amp for each
16 Switch Tenders.