MTHTrains RailKing NYC 4-6-4 User manual

RK
AIL ING
By MTH Electric Trains
®
RAILKING NYC 4-6-4 STEAM
ENGINE OPERATING
INSTRUCTIONS
Thank you for purchasing the RailKing die-cast 4-6-4 steam locomotive.
The engine’s die-cast body and tender are traditionally sized for operation
on any O-27 or larger layout. The engine is compatible with any standard
AC transformer, (see page 33 for a complete list of compatible transformers
and wiring instructions) and is completely compatible with most other 3-rail
locomotives, rolling stock and accessories.
The locomotive and tender are equipped with either a electronic whistle or
the ProtoSound® digital sound and train control system which contains
several deluxe features that are simple and fun to operate. Each feature is
described among the following pages which should be read before the
engine is operated. For those of you who can’t wait to get started, the
Quick Start Basic Operating Instructions found on pages 3 and 4 should
be read so that you understand the basics of the operating system. Please
note that some features are only found in the ProtoSound® equipped
engines and are marked as such. Features not marked as ProtoSound®
features are available in both versions.

2
4-6-4 Steam Engine Operating Instructions
Table Of Contents
QUICK START - BASIC OPERATION(All 3-Rail Models) 3
PROTOSMOKE™ UNIT OPERATION 4
PROTOSOUNDS® OPERATINGINSTRUCTIONS 5
ProtoSound® DCRU® Reverse Unit Operation (All 3-Rail Models) 5
Whistle Operation 6
Bell Operation 6
ProtoCoupler™ Operation 7
Enhanced Neutral Steam Sounds 8
Squeaking Brake Sounds 8
Tips On Using The Squeaking Brake Sounds 9
Freight Yard Sounds (FYS) 10
Activating and Triggering Freight Yard Sounds 10
Tips On Using FYS Features 15
Self-Recharging Battery Backup System 16
Replacing The ProtoSound® Battery 16
ProtoSound® Volume Adjustment 17
USING “RESET" TO PROGRAM PROTOSOUNDS™ 18
Entering RESET Options 18
Setting The Engine Volume 19
Programming For A Separate Bell Button Controller 20
Programming For Squeaking Brake Operation 20
Programming For Whistle In Neutral Operation 21
Programming For ProtoCoupler™ Operation 21
Programming For FYS Operation 22
Activating Remote Lockout Control 22
ResettingAll ProtoSound® Options To Factory Default 23
REVERSE UNIT LOCK-OUT OPERATION 24
Locking The Engine Into Forward or Reverse 24
Unlocking The Engine 24
Locking The Engine Into Neutral 24
OIL & LUBRICATION INSTRUCTIONS 26
TRACTION TIRE REPLACEMENT INSTRUCTIONS 27
LIGHT BULB REMOVAL & REPLACEMENT 28
TROUBLE SHOOTING PROTOSOUND®PROBLEMS 29
ProtoSound® RESET Feature Chart 32
Transformer Wiring Chart 33
SERVICE AND WARRANTY INFORMATION 36
HOW TO GET SERVICE 36
LIMITED ONE YEAR WARRANTY 36

3
4-6-4 Steam Engine Operating Instructions
QUICK START - BASIC OPERATION
The RailKing 4-6-4 contains state-of-the art electronics with several
built-in automatic features for incredibly realistic operation. Despite these
advanced features, the 4-6-4 is easy to operate with any compatible standard
AC transformer (see the compatibility chart on page 34). All models are
equipped with an operating smoke system thatshould be primed with
smoke fluid before operating. Adding 15 - 20 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 4-6-4 model is controlled by an
electronic reverse unit (in mechanical
whistle equipped engines) or by the
Proto-Sound® Digital Sound and Train
Control System (in Proto-Sound® equipped
engines). In either model, 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 Proto-Sound® 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. Before the
engine can be operated however, the reverse unit plug that extends out of
the tender must be inserted into the receptacle at the back of the boiler cab
as seen in Figure 1. Once the plug is inserted, the throttle on the
transformer can be advanced. You will see that only the engine’s lights
come on and that on Proto-Sound® equipped engines, two dings from the
sound system will chime followed by the steam compressor pump sounds.
The engine does not run. This is known as the RESET state and is
explained in more detail beginning on Page 6. The ProtoSound®
electronics will not power the motor 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.
Plug Tender Plug Into
Boiler Socket At Back Of Cab
Figure 1: Plugging in the tender harness
RESET
Neutral
Reverse
Neutral
Forward
Figure 2: ProtoSound® DCRU® Cycle Phases

4
4-6-4 Steam Engine Operating Instructions
PROTOSMOKE™ UNIT OPERATION
The 4-6-4 contains a self-powered smoke unit that outputs a steady stream of smoke through
the smoke stack on the roof of the engine. The ON/OFF switch located next to the trailing
truck must be in the ON position in order for the smoke unit to function. See Fig. 3 below.
The smoke unit is essentially a small heating element and wick which soaks up and then
“cooks" a mineral oil-based fluid that omits a
harmless smoke. The smoke is then forced out of
the stack via a small electric fan which runs at a
constant speed. However, the smoke intensity can be
varied by increasing the transformer voltage setting.
The higher the setting, the more intense the smoke
output.
For best results, we recommend that you add 15 -
20 drops of ProtoSmoke™, Seuthe, LGB or LVTS
fluid before you run the engine. If you don’t choose
to add the fluid, then the smoke unit switch should
be turned off. Failure to either add the fluid or turn
the switch off could lead to damage to the smoke unit heating element and or wicking. Add the
fluid through the smoke stack hole. After adding the fluid, gently blow into the stack to
eliminate any air bubbles. Do not overfill the unit as overfilling can cause the fluid to leak out
and coat the interior engine components. When the smoke output begins to diminish while
running the engine, an additional 10-15 drops of smoke fluid should be added or the smoke
unit switch should be turned off. When storing the engine for long periods of time, you may
want to add at least 15 drops of fluid to keep the wick soaked with fluid and prevent it from
drying out. After removing the engine from storage, it is advisable to add another 25 drops of
fluid, letting the wick soak up the fluid for 15 minutes prior to operation.
MAINTENANCE
CAUTION: Operating the engine without smoke fluid
and with the smoke unit switch in the ON position can
damage your smoke unit wick, causing the wick to
become hard, blackened and unabsorbant around the
heating element. When this occurs, it may be difficult
for the wick to soak up the smoke fluid resulting in poor
or no smoke output. If that occurs, we recommend that
you inspect and/or replace the wick taking care to not
run the engine without fluid in the future. You can
inspect the wick to see if it needs replacement by
removing the smoke unit inspection cover from the body
as seen in Fig.4. After removing the chassis and
inspection cover screws lift the inspection plate away
and inspect the wick. If the wick is darkly discolored
and hard, it should be replaced.
SmokeUnit
ON/OFF Switch Location
Figure 3: Smoke Unit Switch
Smoke Unit
Circuit Board
Mounting Screws
Smoke Unit Frame
Mounting Screws
Figure 4: Inspecting The Smoke Unit

5
4-6-4 Steam Engine Operating Instructions
PROTOSOUNDS® INSTRUCTIONS
The MTH ProtoSound® digital sound and train control system provides
the operator with unprecedented realistic operation on your model railroad.
In addition to actual 4-6-4 engine, CD-equivalent 16-bit digital sounds, you
get the following features:
1. ∗Built-In ProtoSound® DCRU® Reverse Unit * Authentic Steam Whistle Sound*
Authentic Steam Bell Sound* Squeaking Brake Sound* Freight Yard Sounds*
Operating Remote Controlled ProtoCoupler™* Self-Recharging Battery
Back-Up System With Automatic Battery Shut-Off* Remotely Controlled
Reverse Unit Lock-Out* Remotely Adjustable Steam Engine Chuffing Volume*
Authentic Steam Engine Neutral Sounds*
Each feature is described among the following pages. Though the system
is easy to use, we encourage you to read the instructions thoroughly.
PROTO-SOUND® REVERSE UNIT
As mentioned in the Basic Operating section, the engine is controlled by a
ProtoSound® reverse unit that contains the standard
forward-neutral-reverse states found on most reverse units. However, as
described earlier, 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. It is this
first RESET state that gives ProtoSound® its unique, remote controlled
functions. The system will enter RESET whenever power to the track is off
for three or more seconds. NEUTRAL will be referred to as the state
between Forward and Reverse.
ProtoSounds® is equipped with a microprocessor, that, depending on the
amount of memory it is allotted, allows the user to utilize several remotely
activated functions. In the simplest terms, ProtoSounds® has its own
“Computer" controlling these functions. In order to access many of these
remotely controlled functions, the user must be in the RESET state to do so.
RESET is entered anytime power to the locomotive has been off for more
than 3 to 5 seconds. When the engine first enters RESET, the
microprocessor initiates a system check to determine if the system,
transformer and engine are operating correctly. This takes approximately
2.2 seconds during which you will hear the engine’s compressor sounds
begin. In order for ProtoSounds® to properly initiate the system check, do
not advance the transformer throttle past 10 volts when you first enter
RESET, wait for the compressor sounds to begin and then slowly turn the

6
4-6-4 Steam Engine Operating Instructions
transformer throttle to the off position and then back on again to enter the
forward phase. Interrupting the power too quickly may cause the system to
re-enter RESET (signaled by two dings of the bell). Should this happen,
wait longer before interrupting the power to enter the Forward phase.
ProtoSounds® comes with several programmable functions, including
remote Steam Chuffing Volume Adjustment, Separate Bell Button
Operation (pre-programmed at the factory), Whistle In Neutral Operation,
ProtoCoupler™ On/Off Control, Squeaking Brakes and Passenger Station
or Freight Yard Proto-Effects. Each of these features are described in more
detail later. You will notice that when in RESET, your engine will not
respond to the whistle button with a horn blast or continuous bell ringing.
In fact, when in RESET and the whistle button is depressed, only one single
bell chime will be heard each time the whistle button is pressed. If you
don’t want to configure or change your locomotive using any of these
programmable features, simply leave RESET and wait 2.2 seconds before
interrupting the power to put the engine in forward. After you leave
RESET, your engine will operate normally in all the direction states of
forward, neutral and reverse. Remember though, once power is turned off
for more than 3 seconds, the next time power is applied to the track, your
engine will be back in RESET.
WHISTLE OPERATION
Your 4-6-4 ProtoSound® equipped engine is equipped with a digital
recording of a steam whistle. The whistle sound can be activated anytime
the engine is in forward or reverse by pressing the whistle button on your
transformer. The whistle will continue to blow as long as the whistle button
is depressed. The whistle will not function in RESET and must be
configured through a RESET option to allow the whistle to work when the
engine is in neutral. See page 21 for information on whistle programming
in the Using RESET To Program ProtoSounds® section of this manual.
BELL OPERATION
Your 4-6-4 ProtoSound® equipped engine is equipped with a digital
recording of an actual steam engine bell. The bell can be turned on or off
with any separate bell button, like the Lionel® Railsounds® No. 5906 Bell
Button, by simply pushing the button. If you don’t have a separate bell
button, the bell can be controlled through your transformer’s whistle button
whenever the engine is in NEUTRAL. The bell will never ring
continuously in RESET (Remember NEUTRAL is the state between

7
4-6-4 Steam Engine Operating Instructions
Forward and Reverse). Once the bell is turned on, it will continue to ring
when the engine is cycled into forward or reverse until you press the bell
button or re-enter NEUTRAL and turn the bell off with the whistle button.
In fact, because of ProtoSounds® state-of-the-art design, the
microprocessor remembers its last command. Therefore, unless you turn
the bell off before you quit running your train, the next time you run the
engine, the bell will come on. No matter whether you come back an hour
later or a year later, the bell will begin chiming once the engine enters one
of the three directional states.
To turn the bell on using the transformer’s whistle button, turn on power to
the track and cycle the engine into NEUTRAL. Turn the throttle to 8 volts
or less (any higher voltage will arm the ProtoCoupler™) and press the
whistle button. The bell should begin chiming. To turn the bell off, press
the whistle button again. If you want to keep the bell on while running the
engine, simply interrupt the power with the transformer throttle or the
transformer directional switch and enter forward or reverse.
PROTO-COUPLER™ OPERATION
Your 4-6-4 ProtoSound® equipped locomotive tender is equipped with a
coil-wound ProtoCoupler™ for remote uncoupling action. Because the
ProtoCoupler™ is controlled through ProtoSounds® microprocessor, it
doesn’t require an uncoupling track section or modification to your layout
to function. The three simple steps below are required to operate the
coupler.
1. Put your engine in NEUTRAL and turn the throttle all the way up.
2. Press the transformer whistle button to “Arm" the coupler. (You
will hear a “Clank").
3. After arming the coupler, press the whistle button again to open
the coupler.
When the knuckle fires open you will hear the buzzing of the coil
energizing and the sound
of the air lines coming
apart. It can best be
described as a
CHA-CHUSHHH sound. H H
Put Engine In Neutral
At Full Power
Press & Release
The Whistle Button Press & Release
The Whistle Button
Listen For The
Ca-Clunk Sound
See The Coupler Open
And Listen For The
Cha-Chusshh Sound

8
4-6-4 Steam Engine Operating Instructions
The coupler doesn’t have to be fired in NEUTRAL. Once the coupler is
armed it can be fired in Forward, Neutral or Reverse. However, you may
find that the coupler doesn’t open when firing the coupler at high speeds.
Reduce the voltage setting on
your transformer if this occurs
and run your engine at a slower
speed before firing the coupler.
If the coupler continues to open
erratically, try lubricating the
knuckle with light oil as
indicated in Fig. 5.
ENHANCED
NEUTRAL STEAM
SOUNDS
The enhanced Neutral Sounds can be automatically heard whenever the
engine is in neutral. The sounds, which include Steam Pop-Off, Steam
Blow-Down, and Steam Injector sounds occur every 2 to 30 seconds. Each
of the three sequences will play at random intervals to eliminate repetitive
and boring sequences. While the sounds are selected to play randomly by
the microprocessor, there is no guarantee that you won’t hear the same
message repeated twice or more times.
SQUEAKING BRAKE SOUNDS
ProtoSound® equipped engines feature the ability to play the sound of
squeaking brakes whenever your engine slows in speed. There are two
settings for activating the squeaking brake sounds. The default setting
allows the brake sounds to play while the engine is in forward or reverse
and the transformer throttle is lowered from a high setting to a low setting
(14 volts to 8 volts or less). The second setting requires that a bell button be
used to “arm” the brake feature and is explained in more detail in the
“Activating Freight Yard Sounds” section found later in this manual. The
sound itself is a stored record on the ProtoSounds® software chip and will
always play the same brake
Lubricate
Coupler
Knuckle
Figure 5: Lubricating The Coupler
Throttle Down From
High Voltage To Low Listen For The
Squeaking Brake Sounds

9
4-6-4 Steam Engine Operating Instructions
sound for the same three second length each time the voltage is reduced
from high to low. Some practice may be required to synchronize the
playing of the brake sounds with the movement of the engine. It is not
uncommon for the engine to stop before the brake sound is completed.
Operators will find that by coordinating the movement of the throttle setting
from 8 volts to off will allow the engine to maintain its movement while the
brake sounds play. Note: The brake sounds will not be heard if the
transformer throttle is not set above 14 volts and/or not reduced below 8
volts.
TIPS ON USING THE SQUEAKING BRAKE FEATURE
Because the squeaking brake feature always plays for approximately 3
seconds, it is possible that the brake sounds will play longer or shorter than
what visually seems prototypical. You will find that by practicing with the
brake feature, you can quickly determine how quickly to throttle down and
what speeds and voltage settings give you the most prototypical braking effect.
Typical users will find the feature to be a very realistic way to simulate the
sound of an engine slowing down for curves, crossings or coming to a stop at a
station, side track or switch yard. As mentioned above, you will find that
initially your engine may continue to play the brake sounds once your engine
comes to a stop or that the sounds stop prematurely before the engine comes to
a complete halt. For example, if you simply run the engine and turn the throttle
off quickly, the brake sounds will likely continue playing even though the
engine has come to a complete stop. This annoying effect can be eliminated by
simply practicing with the brake feature. In no time, you will quickly learn
how to “feather" the throttle to keep the engine moving while the brake sounds
play and then turning the throttle off just as the sounds stop. Remember that
once you stop the engine, you should turn the throttle to the off position if you
don’t want to activate the Freight Yard Sounds feature described later in this
manual.
The ProtoSound squeaking brake feature also has the ability to simulate the
squeal of wheel flanges when your train enters a curve at high speeds. The
same brake squealing sound plays, but you don’t need to reduce the transformer
throttle to activate the squealing sounds. To play the squeaking sounds as
wheel flange sounds, trigger the brake feature using either method 1 or 2 above.
Once triggered set the transformer throttle setting at 14 volts or higher. As
your engine enters a curve (or anywhere on the layout) quickly “flick" your
transformer whistle button about half way. This “flicking" action causes the
transformer to release a short DC signal that ProtoSounds reads as an indicator
to activate the brake sounds. The engine won’t slow down even though the
sounds play. This simulates the wheel flange squeal of a train traveling through
a turn too quickly.
Note: Consistent activation of the wheel flange squealing is determined by the
condition of your transformer’s whistle button rectifier disc. Older rectifier
discs may need to be replaced in order to play squeaking sounds.

10
4-6-4 Steam Engine Operating Instructions
FREIGHT YARD SOUNDS (FYS)
ProtoSounds® comes equipped with operator controlled Freight Yard
Sounds, hereby referred to as FYS. This easy to use feature plays digitally
reproduced freight yard sounds whenever your engine stops on your layout
and is parked in the Neutral position. No additional wires or modifications
are needed on your layout to enjoy these amazing sound effects. The
sounds themselves are randomly generated and randomly “shuffled” on the
ProtoSounds® software chip. This gives the system the ability to produce
different sounds in a different order each time FYS is enabled. These
different sounds are heard each time you cycle the transformer throttle from
ON to OFF to ON in the same manner that you would cycle the throttle to
enter the various states of Forward, Neutral and Reverse. The entire FYS
sequence is designed to simulate the arrival, loading or unloading and
departure of a freight train in a freight yard. Each sequence is described in
more detail in the following sections.
ARMING & ACTIVATING FREIGHT YARD SOUNDS
Your ProtoSound® equipped engine features an operator controlled freight
yard sound set. Once activated, this easy-to-use feature plays the sound of
freight yard activities whenever the operator places the engine in the
Neutralposition.
ARMING THE FREIGHT YARD FEATURE
Before freight yard sounds can be heard, ProtoSounds® must activate the
feature so that the next time the engine enters the Neutral position, the
sounds can play. The Feature can be activated one of two ways.
Option1: If you are using a separate bell button controller to ring your bell
(like the Lionel® Railsounds® number 5906 bell activation button or a
transformer equipped with a bell button, like the MTH Z-4000), you can
activate the Feature by holding down the bell button for three or more
seconds (it doesn’t
matter if you are in
Forward, Neutral or
Reverse). You will hear
the bell chiming turn on
and if you listen
carefully, you should
Put Engine In Neutral,
Forward or Reverse
Press & Hold
The Railsounds® Bell Button
For 3 Seconds
Listen For The
Start Of The Bell Sound
Listen For The
Whistle Blast Sound
After 3 Seconds