Traction Tire Replacement
Your locomotive comes with traction tires on the leading driver of each 'engine'. Each set of 4 driving axles is
called an 'engine'. There are two 'engines' on the Cab Forward. Should these tires need to be replaced, an extra
set of 4 tires is included. This process requires patience and the need to work extremely carefully. Do this
work on a clean work space so as not to loose any of the small parts. Please read through the steps below
before starting the work.
1. Included in your locomotive presentation box is a packet containing replacement couplers and traction
tires. Have this packet handy but don't remove the tires from the packet until you are ready to replace
them.
2. There is one traction tired driver axle on both 'engines'. Replace the traction tires on one driver axle at
a time. It is not required to replace more tires than necessary, however these instructions are the same
for the traction tired drivers on both 'engines'.
3. Using a small pair of side cutters, slide the cutter head between the hex-head pin holding the side rod
to the driver and the side rod. This is a press-fit hex-head pin and NOT a screw. Do not cut the pin
with the side cutters! Use a small flat blade screwdriver under the cutters. Twisting the screwdriver
while pulling STRAIGHT up on the pin with the cutters will release the pin. It is extremely important
that the pin is pulled STRAIGHT up and completely out without rocking it. If it is rocked, the hole that
the pin fits into will elongate and the pin will not hold when re-inserted. Set the pins in a safe place as
they'll be re-inserted later.
4. Do the above for both sides of the driver.
5. Turn the locomotive upside-down and gently pry the brake hanger off the bottom of the 'engine' you
are working on with a small flat blade screwdriver. Pull it straight out.
6. Remove the two Phillips head screws and remove the bottom plate from the drivers. The traction tired
driver can now be pulled out. No other drivers should be pulled out.
7. Using a #11 X-acto blade, scrape out the old traction tire from the groove. Be sure to clean the groove
completely or the new traction tire will not lay flat causing the locomotive to wobble.
8. Remove one new traction tire from the included package. Using a round smooth pointed tool, re-install
the new traction tire. The tool will help guide the tire into the groove. Make sure the tire is fully seated
and does not twist as it is going into the groove. It should be completely flat in the groove. Install one
tire completely before doing another one (if necessary).
9. Set the driver back in the locomotive with the hole for the pin aligned to the side rod, and re-assemble
the locomotive in the reverse order from above. Do not try to turn the wheels on the axle to align the
pin holes. If the wheels get turned on the axle, they'll have to be re-quartered.
10. Re-insert the hex-head pins last. Be extremely careful to re-insert the pins into the side rod and driver
completely STRAIGHT!
If you should elongate the hole in the driver and the pin will not hold, a replacement driver is required.
Contact us for information on availability of replacement drivers. Limited supply. There is a fee for a
replacement driver and is subject to availability.
AC-12 LokSound Documentation Insert - V2.3.odt
9
To Next Page
Loading...
