Changing Direction
If you flip the direction (polarity) switch on your power pack while the engine is
moving, it will gradually slow to a stop, and slowly accelerate back up to speed in the
opposite direction. This is an exclusive feature of MTH engines that we're sure you'll
enjoy. You can also change direction the old fashioned way by reducing throttle until
the engine stops, flip the direction switch, and then increase throttle again. Either way
is OK, we just thought a graceful transition from any speed would be cool.
If you switch track polarity too slowly, the engine may stop abruptly and not move in
the reverse direction. This is normal. There is a feature we call “anti- jack rabbit” that
prevents the engine from taking off at high speeds when high voltage is applied to the
track instantly. Some direction switches have a “dead” spot where the power is
completely off during polarity changes. This can invoke the anti-jack rabbit feature.
The solution is to flip the direction switch more quickly. Don't worry you won't hurt
the engine.
Speed Control
Your engine is equipped with speed control. This feature is always active, even in
analog AC or DC mode. Basically, your engine constantly measures track voltage and
converts this to a digital speed command. You should notice the speed remains
constant up and down grades, around curves, and with varying loads. This is no
accident. You've got the most precise speed control system available today.
Sounds
In this mode, sounds are pretty much automatic. If you're moving, you'll hear diesel
sounds.
When your sitting at idle, there may be some maintenance done. You could hear someone
calling for help on the radio. Don't worry, all of this and more is just a normal part of
everyday operations.
When you’re moving at a pretty good clip and you reduce the throttle quickly, you may
hear the brakes squeak and squeal as the engineer applies them. Of course, they'll stop
when the engine does.
If things get too noisy, just locate the sound volume pot under the rear roof, adjust the
volume from maximum down to off, whatever suits you. Turn it counterclockwise to
reduce the volume or clockwise to increase it. Refer to page 7 for volume pot location.
Lighting
Now, this is an illuminating section (we couldn’t resist). Your model is equipped
with a headlight, number board lights and ditch lights (where applicable).
The first thing to know about the lighting is there aren’t any bulbs. It’s all LEDs,
so you should never have to replace them. As with sounds, in analog DC mode,
lighting operation is fully automatic. They’re always on and behave appropriately.
M.T.H. HO ES44AC PS3E+ Diesel Engine
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