8
RailKing Royal Hudson Steam Engine
Proto-Coupler
®
Operation
This locomotive is equipped with one coil-wound Proto-Coupler for remote
uncoupling action. Because Proto-Couplers are controlled through the
Proto-Sound 2.0 microprocessor, they do not require an uncoupling track
section or modification to your layout to function. You can fire a coupler from
neutral or while in motion. Use the code shown below (and in the chart on p.
5) to fire the coupler.
Rear Coupler:
To fire the rear coupler, press the Bell button once followed immediately by
three pushes of the Whistle button. 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 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 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.
