Take note of the fragile parts

Take the housing off

The bottom part has 4 tabs that fit into holes in the window panels. The biggest mistake people make here, including me, is to put the cocktail stick between the outer body housing and the window, but it should be between the black bottom frame and the window. If you pull the body out with force, you would break the clips in the window panels. Put the body housing aside.

Remove on of the side skirts, by just pulling it upwards (towards you). This will also release the bottom panel, as it is the side skirts that hold this panel in place (important to know when re-assembling the model).

5

De-solder wires

The wires can actually stay connected to the model for later use, but I decided to replace these clumsy wires for Ultra thin wire.

Take the PCB out, which will reveal the motor.

6

7

Remove all items

When you unscrew the two screws next to the axles, you can take the whole assembly out. Take good notice on how it all fits together and how the parts hold each other in place.

8

Solder wires

For your convenience, the motor has already been fitted in the casing by the Tramfabriek. Notice that the contacts should face upwards. Top will be + (see small sign next to contact). The motor is not been pushed in completely. After soldering the wires to the motor, push the motor completely in the casing until it can’t go further.

Fit motor

You should be able to push the motor assembly in place and by design it will stay in place by friction. If you want to be sure, you can add a bit of glue on it, but it hasn’t been necessary with my model.

Note that the + wire is black, instead of the traditional red. This way it is not obvious when looking inside the model. This wire goes out from the top, then goes down to the PCB through a gap on the side. The - wire goes directly to the bottom. This is why the contact pins are positioned vertically.

Reassemble model

Test if it runs well, then close the model.