Power Bogie; Power Bogie - General Arrangement - EASY-BUILD DERBY LIGHTWEIGHT CLASS 108 DMU Assembly Instructions Manual

the side frame. See Bogie step and speedo drive (Cl. 105 model).
**TIP Flattening the front spring hanger 'bobbin' back to the level of the leaf spring greatly simplifies the
fitting of the step mountings. Although un-prototypical, once painted the flatness is hardly noticeable.

POWER BOGIE

29.1) Find the brass power-bogie stretcher-plate, the two sideframe mountings (LH & RH) and axle
bearings. Put the bogie pivot 'top hat' to one side (safe!) until required to actually mount the bogie.
29.2) Fit axle bearings into the two remaining bogie sideframes as per the un-powered bogies.
Power bogie - general
arrangement
Motor fixing screw holes
Afix sideframe
29.3) Push the two moulded pins
of each sideframe through the
holes in a sideframe mounting
(with the folded sides hanging
down) and glue into place.
29.4) Fold down the end of the
bogie stretcher plate at the half
etch and the whole extension
about 3mm from the horizontal
(this might need further adjustment later on).
29.5) Bolt one sideframe assembly to the bogie stretcher plate with 2x 2mm nuts and bolts provided.
29.6) Insert the wheelsets into the assembly ensuring the set with the brass gearwheel is at the same
end as the motor mounting and that the two sprockets are both on the same side.
29.7) Fit the opposite sideframe assembly as before.
29.8) Form the bogie end channel with guard irons (E28 & E26) and afix to the folded down end
Bend down slightly,
about 3mm from
horizontal
RH
LH
Afix sideframe
Only one side shown
NOT TO SCALE
Sideframe moldings
locate into these holes
Afix bogie end channel
centrally onto turned down
end of stretcher
Fold down end
slightly less than 90
Fold down edges of stretcher
and sideframe mounting plates
as shown (if not already
folded) and reinforce fold with
solder.
Sideframe mounting
fixing bolts
Bend down slightly
Fold down end
Moulded
sideframe outline
Bogie pivot 'top hat'
for mounting bogie
o
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