Rail King F40-PH Operating Instructions Manual - Proto-Coupler

8

RailKing PA AA Diesel Engine

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 (also listed on page 5).

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.

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 liftbar and air line

depletion will play, and the knuckle will be released. Note: If the coupler is

activated, the sounds will play even if the knuckle is already open.

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 maintain a constant

speed when speed control is turned off, you need to adjust 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, put the engine in neutral, then press the

transformer’s Whistle button one time then immediately press the Bell button

two times. 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 state.  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.