Bachmann Class 66: Modifying the
Bogie Drive
This section describes the operations involved in modifying the drive units.
Dismantling the loco
Following the manufacturers' recommendations for running-in, ensure that the
loc omotive is performing smoothly and to your satisfaction generally. Deal with any
issues now, especially those covered by warranty or your basic statutory rights as
customer, before making any modifications.
Separate the body moulding from the chassis block of the locomotive, according to the
manufacturer's instructions. Store the body retaining screws safely away.
Make a note of the identification of the terminals on the circuit board to which the
two wires leading to each bogie are connected. Note also to which side of each bogie
they go. Pop off any insulated sleeves from the terminals and disconnect the wires leading
to the bogies. It might be necessary to desolder them but they may just be passed
through holes in the terminals and retained by the sleeves.
Select one of the bogies and undo the screw which retains the bogie pivot in the
c hassis block. Drop the bogie out from the bottom of the block. The cardan shaft
joining the motor to the bogie will either come with the bogie or be retained at the motor
end. Either way, remove it but note that the ears on each end of the cardan shaft are of
subtly different shapes, so record which end is which.
Assign the bogie to one or other of your sets of etched bogie parts, marking the bogie
drive and chassis block accordingly.
Similarly remove the other bogie.
Dismantling the Bogie
Using a small screwdriver, gently unclip the
bogie
sideframe/undertray moulding from
the ends of the bogie drive unit.
Bachmann Class 66: Modifying the Bogie Drive
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(c) PenBits Model Railways, All Rights Reserved
27/09/2021
Summary of Contents for Bachmann Class 66
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