Traction Tire Replacement Instructions
Your locomotive is equipped with two neoprene rubber traction tires on each
powered truck block. While these tires are extremely durable, you may need to
replace them at some point.
First, remove the truck sides from the truck block. To do this, turn your engine
upside down. If there are visible Phillips screw heads between the truck frame and
truck block (see below), go to step A. If not, go to step B.
A. Remove the two Phillips screws that attach each truck side to the truck block.
B. Remove the trucks from the chassis as described in lubricating and greasing
instructions. Remove the truck sides from the trucks in order to slip the new tire
over the grooved drive wheel. Once the truck sides have been removed:
1. Make sure the old tire has been completely removed from the groove in the drive
wheel, using a razor blade or small flathead screwdriver to pry away any remains.
2. Slip the new tire onto the wheel. You may find it useful to use two small
flathead screwdrivers to stretch the tire over the wheel.
3. If you twist the tire while stretching it over the wheel, you will need to remove
and reinstall the tire. Otherwise your engine will wobble while operating.
4. Make sure the tire is fully seated inside the groove. Use a razor blade to trim
away any excess tire that doesn’t seat itself inside the groove properly.
5. Reassemble in reverse order.
One set of replacement tires is packaged with the model. Additional tires are
available directly from the M.T.H. Parts Department (Order online: www.mth-
railking.com, e-mail: parts@mth-railking.com,Fax: 410-423-0009, Phone: 410-381-
2500, Mail: 7020 Columbia Gateway Drive, Columbia MD 21046-1532, ).
Motor Mount Screw
RKS SD70ACE with Horn & Bell
8
Truck Side Mounting Screws
are on top of truck block
follow step B above
