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Front Coupler:
To fire the front coupler (if your engine has one), quickly tap the Bell button once
followed by four quick taps of the Horn button, allowing approximately ½ second
to lapse between each quick button press. The sound of the liftbar and air line
depletion will play, and the knuckle will be released.
Fire
=
Bell
Horn
Horn
Horn
Horn
Front
Coupler
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
releasing of cars while on the run. Because the engine will run more slowly at a
given throttle voltage when speed control is on than when it is off, you should
adjust the throttle to a lower power level for operation with speed control off to
avoid high-speed derailments. When speed control is off, the volume will drop to
allow for better low voltage operation.
To turn speed control on and off, put the engine in neutral, then quickly tap the
transformer's Horn button one time then quickly tap the Bell button two times,
allowing approximately ½ second to lapse between each quick button press. Two
horn blasts will indicate that the engine has made the change. Repeat the 1 horn, 2
bells code to return it to the other condition. You will want to do this during the
initial neutral upon start-up if you ever couple this engine to 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.
Speed Control
Two Horn Blasts
Place
=
Bell
Bell
Horn
Engine into
(indicates change is made)
Neutral
Repeat to Return
to Normal Condition
USRA 0-8-0 Steam Locomotive
12
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