Operating instructions

RailKing F-3 Diesel Engine

• You can terminate PSA at anytime by turning off power to the track for

15 seconds.

• You do not have to be in Forward to use PSA. At the conclusion of the

full sequence, the train will pull away from the station in whatever

direction you were going when you activated the feature.

• You can use PSA even if you are double-heading with another engine.

If the second engine is not equipped with PSA at all, you must remember

not to leave the throttle at a high voltage level once you have stopped the

engine to run the PSA. Otherwise, the engine without PSA will begin

vibrating on the track as its motors strain to move the train, since they

cannot be automatically disabled during the PSA cycle. If the second

engine is an original Proto-Sound engine equipped with PSA, you may

choose to disable it when used in double-heading operations, so you will

not experience competing PSA sounds. To disable PSA in an original

Proto-Sound engine, see the operating instructions for that engine.

• PSA can be triggered from Neutral. It will operate the same as if

triggered while in motion except that, at the conclusion of the PSA, the

engine will depart in the next direction of travel, as opposed to the

direction it was traveling before entering Neutral.

Proto-Coupler

Operation