3
MTH DL-110 Operating Instructions
QUICK START - BASIC OPERATION
The MTH DL-110 B Unit contains state-of-the art electronics with several
built-in automatic features for incredibly realistic operation. The DL-110
B-Unit is easy to operate with your existing MTH DL-109 A unit using any
compatible standard AC transformer (see the compatibility chart on page 7).
All models are equipped with an operating smoke system that
should be
primed with smoke fluid before operating
. Adding 20 - 25 drops of fluid
through the smoke stack should be
sufficient.
If you choose to not prime the
units
with fluid
,
turn the smoke unit
switch located under the trailing truck to
the OFF position
. (See Figure 1) This
will prevent any damage from occurring to
the smoke unit when running the engine
without a primed smoke unit. For more
information see the section on page 4 on
Smoke Unit operation.
The DL-110 powered B-Unit is controlled
by a DCRU® electronic reverse unit which 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). Simply plug the B-Unit
wire harness into the existing sockets of the DL-109 A Unit set to allow
Proto-Coupler® equipped engines and directional lighting systems to
function. Once connected, advance the transformer throttle to cycle all A
and B units together from RESET to Forward as explained in the DCRU
section below.
DCRU® REVERSE UNIT
As mentioned in the Basic Operating section, the engine is controlled by a
DCRU® reverse unit that contains the standard forward-neutral-reverse
states found on most reverse units.
However, when power is first applied to
the track, the reverse unit begins in
RESET or what seems like a neutral
state. Power must be interrupted again
to get the locomotive to enter the
forward state. The system will enter
RESET whenever power to the track is
RESET
Neutral
Reverse
Neutral
Forward
Figure 2: DCRU™ Cycle Phases
Proto-Smoke
Unit ON/OFF Switch
Fig 1. Smoke Unit Switch
