Rail King 4-6-6-4 Challenger
13
Traction Tire Replacement Instructions
1. Remove the side rods from the wheels in order to slip the new tire over the
grooved drive wheel. Make sure to note the position of all rods before removing.
2. 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.
3. 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. 4. 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. 5. 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.
6. Reinstall the side rods in the same positions as noted. Failure to align rods may
cause binding or damage to the drive system.
One set of replacement tires is packaged with your model. Additional sets are
available directly from the M.T.H. Parts Department (phone: 410-381-2580; e-mail:
[email protected]; mail: 7020 Columbia Gateway Drive, Columbia MD
21046-1532). The locomotive’s headlight is controlled by a constant voltage circuit
in the engine. The headlight is easy to remove and replace when it burns out. The
bulb has a quick disconnect plug that attaches the bulb harness to a light circuit.
Replacement bulbs are available directly from the M.T.H. Parts Department.
