Lock Into A Direction; Reset To Factory Defaults; Automatic Sounds - M.T.H. PREMIER U50C Operating Instructions Manual

Lock into a Direction:

You can lock your engine into a direction (forward, neutral, or reverse) so that
it will not change directions. To do this, put the engine into the direction you
want (or into neutral to lock it into neutral), run it at a very slow crawl (as
slowly as it will move without halting), and quickly but firmly tap the Horn
button once followed by three quick taps of the Bell button, allowing
approximately ½ second to lapse between each quick button press. Two horn
blasts will indicate that the engine has made the change. The engine will not
change direction (including going into neutral) until you repeat the 1 horn, 3
bells code to return the engine to its normal condition, even if the engine is
kept without power for extended periods of time.

Reset to Factory Defaults:

To override the settings you currently have assigned to the engine and reset it
to its factory defaults, while in Neutral tap the Whistle button quickly once,
followed by five quick taps of the Bell button, allowing approximately ½
second to lapse between each quick button press. Two horn blasts will indicate
that the engine has made the change.

Automatic Sounds:

Certain Proto-Sound 2.0 sound effects automatically play in programmed
conventional mode conditions:
Squealing Brakes play when the engine's speed is decreased rapidly.
Cab Chatter plays when the engine idles in neutral.
Engine Start-up and Shut-down sounds play when the engine is initially
powered on or is powered off for five seconds or more.
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Premier U50C Diesel Engine Operating Instructions