MTHTrains F-3 POWERED B-UNIT Operations Instructions download pdf (Page 28)

MTH F3 Diesel Engine

Lubrication section on the preceding pages to dissemble the chassis and

truck blocks from the body.

Before the new tire can be installed, you must make sure the old tire has

been completely removed from the groove in the drive wheel. Use a razor

blade or small flatblade screwdriver pry away any remains left from the old

tire that may still be in the drive wheel groove. Once the old tire has been

completely removed, slip the new tire onto the wheel. You may find it

useful to use two small flatblade screwdrivers to assist you in stretching the

tire over the wheel. Be careful to avoid twisting the tire when stretching it

over the wheel. If a twist occurs, the tire will have to be removed and

reinstalled or a noticeable wobble in your engine will occur when operating

the locomotive. In addition, it is important to make sure that the tire is

fully seated inside the groove. Any portion of the tire extending out of the

groove can cause the engine to wobble. A razor blade can be used to trim

away any excess tire that doesn’t’t seat itself inside the groove properly.

Once the new tire(s) are in place, reassemble the truck sides to the truck

blocks and then reassemble the chassis to the body. Replacement tires are

available directly from MTH Electric Trains.

HEADLIGHT REPLACEMENT

The F-3 locomotive’s headlights are controlled by constant voltage circuits

inside the locomotive body. The headlight(s) can be easily removed from

their lampholders should the bulbs expire. To remove the bulb, follow the

body removal instructions found in the Lubrication section on the

proceeding pages. Once the cab has been separated from the chassis, gently

unplug the bulb’s wiring harness from the socket on the constant voltage

circuit. Replacement bulbs are available directly from MTH Electric

Trains.

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MTHTrains F-3 POWERED B-UNIT Operations Instructions Page 28