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Proto-Coupler® Operation
This locomotive is equipped with 2 coil-wound Proto-Couplers for remote uncoupling
action. Because the Proto-Coupler is controlled through the Proto-Sound 2.0
microprocessor, it does not require an uncoupling track section or modification to your
layout to function. Use the codes listed below.
Rear Coupler: To fire the rear coupler, press the Bell button once followed
immediately by four pushes of the Whistle button. The sound of the lift bar and air line
depletion will play, and the knuckle will be released.
Front Coupler: To fire the front coupler, press the Bell button once followed
immediately by four pushes of the Whistle button. The sound of the lift bar and air line
depletion will play, and the knuckle will be released.
Speed Control
M.T.H. engines equipped with Proto-Sound 2.0 have speed control capabilities that
allow the engine to maintain a constant speed up and down grades and around curves,
much like an automobile cruise control. You can add or drop cars on the run, and the
engine will maintain the speed you set.
While the engine is programmed to start with the speed control feature activated, you
can opt to turn it off. This means the engine's speed will fall as it labors up a hill and
increase as it travels downward. It is also affected by the addition or release of cars
while on the run. To maintain a constant speed when speed control is turned off, you
need to adjust the track voltage yourself. When speed control is off, the volume will
drop to allow for better low voltage operation. Full volume is restored upon reactivation
of speed control.
To turn speed control on and off: First, put the engine in neutral, then press the
transformer's Whistle button one time then immediately press the Bell button two
times. Two whistle blasts will indicate that the engine has made the change. Repeat the
1 whistle, 2 bells code to return it to the other state. You will want to do this during the
initial neutral start-up if you ever couple this engine with another engine that is not
equipped with speed control to avoid damaging the motors in either engine. Each time
you shut down the engine completely, it will automatically turn speed control on.
Lock into a directional state:
You can lock your engine into a directional state (forward, neutral or reverse) to prevent
it from changing directions. To do this, put the engine into the direction you want or in
neutral, run it at a very low speed (<10 scale mph), and quickly but firmly press your
remote's Whistle button once followed immediately by three presses of the Bell button.
Two whistle blasts will indicate that the engine has made the change. The engine will
not change direction (including going into neutral) until you repeat the 1 whistle, 3
bells code to return the engine to its normal state, even if the engine has been kept
without power for extended periods of time.
USRA 0-6-0 Steam Engine
7
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