Tinplate IVES 3243 R Electric Locomotive
8
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.
Place
Engine into
Neutral
Bell
Bell
=
Speed Control
Two Whistle Blasts
(indicates change is made)
Repeat to Return
to Normal Condition
Horn/
Whistle
