MTHTrains F-3 POWERED B-UNIT Operations Instructions download pdf (Page 27)

MTH F3 Diesel Engine

Once the motor mount screw has been removed, pull the motor away from

the truck block and lightly coat the motor worm gear and bronze drive gear

(in the truck block) with grease. Reassemble the truck and motor, being

careful not to pinch the pickup and ground wires between the truck block

and motor mount. Repeat the procedure for the other motor and truck and

then reassemble the chassis to the body. When reassembling the chassis and

body, be very careful that the lighting wire harnesses are not caught

between the body and chassis as this can lead to a short which may damage

the electronic circuit boards beyond repair.

In addition to the truck block internal gearing, it is a good idea to lubricate

the outside truck block “idler" and “drive" gears with grease. Use the

diagram shown in Fig. 7. above as a guide and add grease to the points

marked with a “G".

Periodically, check the locomotive wheels and pickups for dirt buildup as

this can significantly affect the engine’s ability to perform properly. Dirty

track and dirty wheels can cause both poor electrical contact as well as poor

traction, especially on elevated track sections. Finally, dirt and oil build up

can prematurely wear out the neoprene traction tires.

TRACTION TIRE REPLACEMENT

INSTRUCTIONS

Your locomotive is equipped with two neoprene rubber traction tires on

each power truck. While these tires are extremely durable and long-lasting

there may arise a time where they will need to be replaced. Should this

occur, you will need to remove the trucks and truck sides on the truck block

from the chassis in order to slip the new tire over the grooved drive wheel.

We suggest you follow the disassembly instructions found in the

Motor Mount Screw

Body Mount Screws

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 39 40

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MTHTrains F-3 POWERED B-UNIT Operations Instructions Page 27