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TRAILING CAR CONTROL USING THE LOCOMOTIVE’S POWER PLUGS
The Bachmann GP40 locomotive has a power plug next to the front and rear coupler.
These plugs can be used to provide battery power to the device in the locomotive’s
plug-and-play circuit board or allow full control of the locomotive using a control
system in a trailing car. The locomotive’s Battery/Track pickup switch must be set to
Battery mode to allow for this style of operation.
The NMRA/Large Scale Polarity Switch can be used to allow control in both elephant-
style (same-direction-facing) and back-to-back operations when running multiple
locomotives.
SHARING BATTERY POWER
When sharing power between batteries connected to the locomotive’s internal battery terminals
and batteries in another locomotive or trailing car, it is important to observe caution to avoid shorts
between the batteries. Pin 1 should be used for the negative connection and Pin 2 for the positive
connection. Connecting two GP40 locomotives using the supplied power plug connecter cable will
allow both units to share their battery power.
HYBRID DRIVE OPERATION
Some control systems use a combination of onboard primary and backup power to provide the locomotive with the control
signal transmitted either through the track or via radio control. To install such systems, connect the onboard power ground
terminal to J1-7 GND and the onboard power positive terminal to J1-6 B+. If desired, Pin J2-11 can be used to connect the
switch to turn on and off the backup power source.
The remaining connections are through the plug-and-play circuit board. These systems also allow for the control signal to come
either from the track or from a radio receiver. If using such a system, connect the radio receiver outputs to the BATT1 terminals,
and use the Track/Battery pickup switch to select TRACK for track control or BATTERY for the radio signal.
GENERAL MAINTENANCE AND SERVICE
By establishing regular lubrication and a general maintenance schedule, you can have a lifetime of fun, quality performance,
and satisfaction with your locomotive. Do not use any liquids or solvents to clean this locomotive; use a soft, lint-free cloth or
cosmetics brush. Don’t leave your locomotive unattended outdoors overnight or in inclement weather.
If your locomotive should need service, please note that our service department is not responsible for repairs to locomotives
with aftermarket products installed in the locomotive’s plug-and-play circuit board. Any locomotive requiring service should be
returned to us as delivered, entirely in the original package AND with the factory-supplied (DC) Jumper PC Board plugged in
the plug-and-play circuit board.
Disclaimer: Bachmann Industries Inc. will not be liable for any damage incurred to any locomotive or any other personal
property resulting from the use of a third-party battery or any other charging system used to operate this locomotive. To the
extent you choose, at your own risk, to use a third-party battery or charging system to operate this locomotive please follow all
instructions that accompany either the third-party battery or charging system.
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