There's not that much too it really - although this shot
does not show the bogies in their disassembled state.
Neither does it show the black box underneath the loco and
the lower circuit board. The main components are laid
out relative to their assembled front/rear location for
reference. Front is at the left of the photo.
Lay the loco body on its side. Front to the left.
(Use those small screwholes to indicate which is the
front as described earlier. Orientate the motor
correctly.
The photo shows the correct orientation, but the
chassis is upright. It is easier if it is on its
side so that gravity can help to keep things in place.
But it's up to you. Note the clip on the right
hand end with the bump facing upwards - see below.
The silver caps need to be towards the front of the loco chassis.
The silver brush cap with
the tag (shown here on the top side of the motor) needs to be inserted first
so that it presses against the inside of the right hand side of the chassis
(the side that the model is laid on).
BUT WAIT -- have you had the brush
caps off ? If so, did you put the caps on correctly? It makes a
difference. To check - use the photos. See those two little
dimples near the brass axle bush ? They indicate which brush needs to
be connected to the +12 volt rail. So the silver cap with the tag
(which connects to the chassis) needs to be on the other side. As
shown in the photo. Only one dimple is visible in the photo at the
bottom, the other is obscured by the axle.
Note that the clips are not symmetrical. The little bump or tag that
can be seen on the bottom left of the clip needs to be positioned so that it
faces up when inserted into the side of the chassis....
...like this. Just rest it there for the time being. Juggling this,
the motor itself and the clip at the other end is a little fiddly to say the
least.
Drop the motor into position, guiding the small plastic axle bearing clips
at each end into position. Check the motor and both clips are the
correct way round before pushing the clips gently into their locked position
- here with a cocktail stick.
Once in place, secure the motor with its two spring clips, checking that
the clips are properly seated by inspecting from the other side.
And check that the silver brush cap has its tag pressing firmly against the
chassis - this is the only way that the motor will make electrical contact
with the 0volt rail.
Maintaining Classic UK Minitrix Locos
The Minitrix trademark is currently owned by Märklin Inc.
Gebr. Märklin & Cie. GmbH, Stuttgarter Straβe 55-57, D-73033 Göppingen,
Baden-Württemberg