3
MTH F3 Diesel Engine
QUICK START - BASIC OPERATION
The MTH F-3 contains state-of-the art electronics with several built-in
automatic features for incredibly realistic operation. Despite these advanced
features, the F-3 is easy to operate with any compatible standard AC
transformer (see the compatibility chart on page 33). The F-3 locomotive
is controlled by a ProtoSound® DCRU® electronic reverse unit. The
reverse unit operates in the same manner that all reverse units function by
using forward, neutral and reverse states that are entered each time the
throttle is turned on and off or by using the transformer direction switch (if
so equipped).
The reverse unit is designed to ignore dirty track, dead spots on switches
or minor short circuits without disrupting the engine operation, even at
slow, prototypical
speeds. Once the
engine is placed on
the track, the throttle
on the transformer
can be advanced.
You will see that
only the engine’s
lights come on and that
only two dings of the
ProtoSound bell occur
followed by the diesel
start-up sounds (on
ProtoSound equipped
3-rail models). The
engine does not run. This
is known as the RESET
state and is explained in
more detail beginning on
Page 4. The
ProtoSound® DCRU®
will not power the motors until the throttle is turned OFF and then ON
again. At this point, the engine will now function just like any other
electronic or mechanical E-unit.
AA SETS
Plug wire harness from
powered A unit into pow-
ered A unit in order to op-
erate directional head-
lights and coil couplers
AB SETS
Plug wire harness from
powered A unit into non-
powered B unit.
ABA SETS
Plug wire harness from
powered A unit into non-
powered B unit. Then
plug wire harness from
non-powered B unit into
non-powered A unit in or-
der to operate directional
headlights and coil cou-
plers in the non-powered
Figure 1: Plugging In the ProtoSound® Cable Harness
RESET
Neutral
Reverse
Neutral
Forward
Figure 2: DCRU™ Cycle Phases
ProtoSoundVolume
ControlKnob
CouplerDirection
Switch
Figure 2: Locating The Proto-Coupler® Selection Switch
Summary of Contents for MTH F-3 DIESEL ENGINE
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