Page 69 - TPM Issue2

he kit is packaged in a cardboard
box with window, showing the
Tparts within. The precision laser cut
parts are all numbered and come on
three sheets of plywood. Also included
in the box is a piece of sandpaper for
removing any raised tabs on the parts
that are moving, and a small block
of wax which is used to lubricate the
moving parts, reducing the resistance
so the moving parts operate smoothly.
At the heart of the model is a metal
spring which coils up using a winding key
built into the roof of the dozer. A lever
inside the cabin switches the power to
Above: Above:
The cabin, which incorporates the winding key is the the tracks which rotate. There is also a The main part of the motor mechanism with the
first sub-assembly to be built speed control which allows for slow or metal spring installed
fast running.

A 24-page booklet is included which lays
out the assembly steps in a clear way,
using pictorials, photos and diagrams.
For each page, a picture of the wooden
panel is shown, with the needed parts
for the stage highlighted. The pictorials
show a breakdown of the parts and
where they fit with each other. Parts that
need sanding or lubricating are clearly
identified and where a part needs to be
Above: positioned precisely, there is an image Above:
Some of the gearing used in the model to transfer showing the exact orientation. The model The individual parts that are used to make the
onrad
the power from the spring to the drive sprocket is built by first putting together a number track chain. cleverly locking together to allow the
fitted to the track frames movement
of small sub-assemblies, starting with the
cabin which has a winding mechanism
incorporated into the roof. Following
this, all the internal gear mechanisms are
Left:
Caption assembled before the speed control is
added to one of the side panels.

The metal spring comes next and this
is the only step that could need a pair
of pliers to secure the metal loop. The
next step is to put together the optional
dozer blade which is V shaped. The
main moving part of the model are
Above: the tracks, so care is needed to ensure Above:
Another view of the various internal parts that go the track frames are smooth and well The assembled track chains ready to be fitted to
into making the tracks move the frames

Above: Above:
The track frames which need the outer surfaces to The optional assembled V-shape dozer blade and
be sanded and lubricated to prevent any friction arms which is height adjustable
Autumn 2019 - TPMMW Magazine 69