MTHTrains Z-4000 Operations Instructions download pdf (Page 16)

MTH F-3 Operating Manual

Special Reverse Unit Options

Reverse Unit Lockout Operation

For operators who wish to lock their engine into a single direction,

Proto-Sound’s® unique design eliminates the need for a lock-out switch

on the locomotive. This will allow users to run the engine on layouts

equipped with block signals or stop stations that would normally cycle the

engine back into neutral. Note: The feature must be first turned on by

accessing RESET Feature 40 (See page 22).

Locking the Engine into Single Direction Operation

Cycle the transformer throttle so that your engine is operating in the

direction you wish to lock it in (forward, neutral or reverse). With the

throttle set to approximately 8 volts, press and hold the horn/whistle

button. While holding the horn/whistle button, turn the throttle OFF, and

then release the horn/whistle button. After 2 seconds, you will hear a short

horn blast. IMMEDIATELY turn the throttle back on. The engine is now

locked, and will continue in the previous direction whenever power is

applied to the track.

Unlocking The Engine

With the throttle set to approximately 8 volts, press and hold the

horn/whistle button. While holding the horn/whistle button, turn the

throttle OFF, and then release the horn/whistle button. After three

seconds, a single bell will be heard indicating that the engine is unlocked.

When power is again applied, the engine will enter RESET and perform as

normal.

NOTE: When locking the engine in the Forward or Reverse positions,

the horn/whistle button will blow the horn/whistle. But when locking the

engine into the NEUTRAL position, the horn/whistle button may turn on

or off sounds of the bell. Remember, the horn/whistle doesn’t blow in

NEUTRAL (unless you programmed it to do so using Reset Feature 25 -

see page 25 for details), only the bell rings.

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MTHTrains Z-4000 Operations Instructions Page 16