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Premier U50C Diesel Engine Operating Instructions
Proto-Coupler® Operation
This locomotive is equipped with two 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
to fire the coupler.
Rear Coupler:
To fire the rear coupler, quickly tap the Bell button once followed by three
quick taps of the Whistle 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.
Front Coupler:
To fire the front coupler, quickly tap the Bell button once followed by four
quick taps of the Whistle 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.
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.
To turn speed control on and off,
put the engine in neutral, then quickly tap
the transformer’s Whistle 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 whistle, 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.
Note: When
speed control is turned off, the Proto-Sound 2.0 system will limit the volume
in order to operate more smoothly at lower voltages. Full volume is restored
upon reactivating speed control.
