PenBits Bachmann Class 66, Assembly Instructions Manual, Page: 14 / 61

on the surface, with no air bubbles or foreign bodies trapped underneath.
Remove the backing paper from the tape,
take it to one side and place on it three of
the axle bearings, flanged face down. Place the
carrier frame, inverted as shown, over the
t h r e e bearings with the bearings passing
through the three holes. Use the backing paper
to carry the three bearings and frame on to
the double sided tape, then slide the backing
paper away, leaving the three bearings in
contact with the tape and held in position by
the carrier frame. Press the bearings firmly into
place on the tape and remove the carrier frame. Repeat for the other three carrier frames.
Using a cocktail stick, place a thin fillet of multipurpose grease around the flange root
of each bearing. This will ensure that the area is kept free of solder when the bearings
are fixed into the carriers. An alternative is to use a permanent marker: the ink should
resist the flow of solder.
Place the carrier frame, the correct way
up, over the bearings and press down
firmly the back of the frame and carriers,
above Fold 2, on to the tape, as shown
here. The unflanged end of each bearing
should protrude from the face of its carrier
by a very small amount (not quite as much
as in the sketch), and the faces of the
carriers should be parallel with the end faces
of the bearings.
Using a cocktail stick, apply a small amount
of flux around the join between the
protruding part of each bearing and the face of
its carrier. Holding a bearing in place with a
heat insulating instrument, to make sure it
doesn't
move, bring the iron with a small
amount of solder to the join between bearing
and carrier, and let the solder flash round the
joint. Repeat for the other bearings. A small
amount of solder may appear on the bearing
outer surface under the inner face of the carrier but most of the bearing outer surface, in
particular within about 0.5mm of the flange, should be free of solder.
Remove any excess solder from the front faces of the bearings.
Free the fret from the working surface.
Weaken the bond of the double sided tape with a soak in methylated spirits and slide a
Stanley knife blade or a similar thin strip of metal under the fret and bearings to break
the bond of the tape without causing too much distortion.
Unfold Fold 3 and separate the individual bearing carrier assemblies from the frame.
Take care, as the top parts of the carriers are quite fragile at this stage: it may be
Bearing Carrier Instructions for Six-wheel Bogies 14/60
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