Rail King Camelback 4-6-0 Operating Instructions Manual

RAILKING CAMEL BACK

OPERATING INSTRUCTIONS

Thank you for purchasing the RailKing die-cast Camelback 4-6-0 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 34 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 an 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.

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RailKing Camelback 4-6-0

Table Of Contents

QUICK START - BASIC OPERATION(All 3-Rail Models) 3
PROTOSMOKE™ UNIT OPERATION 4

PROTOSOUNDS® OPERATING INSTRUCTIONS 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
Passenger Station Sounds (PFA) 10
Activating and Triggering Passenger Sounds 10
Tips On Using PFA 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 22
Programming For PFA Operation 23
Activating Remote Lockout Control 23
ResettingAll ProtoSound® Options To Factory Default 24

REVERSE UNIT LOCK-OUT OPERATION 25

Locking The Engine Into Forward or Reverse 25
Unlocking The Engine 25
Locking The Engine Into Neutral 25

OIL & LUBRICATION INSTRUCTIONS 27
TRACTION TIRE REPLACEMENT INSTRUCTIONS 28

LIGHT BULB REMOVAL & REPLACEMENT 29
TROUBLE SHOOTING PROTOSOUND® PROBLEMS 30

ProtoSound® RESET Feature Chart 33
Transformer Wiring Chart 34

EXPLODED VIEWS AND PARTS LISTS 36
SERVICE AND WARRANTY INFORMATION 40

HOW TO GET SERVICE 40
LIMITED ONE YEAR WARRANTY 40

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RailKing Camelback 4-6-0

QUICK START - BASIC OPERATION

The RailKing Camelback 4-6-0 contains state-of-the art electronics with
several built-in automatic features for incredibly realistic operation. Despite
these advanced features, the Camelback 4-6-0 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 that should
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 3 on page 4) 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 Camelback 4-6-0 model 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. 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 ProtoSound®
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 5. The ProtoSound® DCRU® 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

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RailKing Camelback 4-6-0

PROTOSMOKE™ UNIT OPERATION

The Camelback 4-6-0 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.

Smoke Unit Switch

Figure 3: Smoke Unit Switch

Smoke Unit

Circuit Board

Mounting Screws

Smoke Unit Frame

Mounting Screws

Figure 4: Inspecting The Smoke Unit

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RailKing Camelback 4-6-0

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 Camelback 4-6-0 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* Passenger Station
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.

ProtoSound® 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, 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 fact, the power of this

microprocessor is the same as that of a 286 desktop computer! 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 startup
sounds begin. In order for ProtoSounds® to properly initiate the system
check, do not advance the transformer throttle past 10 volts when you first

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RailKing Camelback 4-6-0

enter RESET, wait for the steam compressor sounds to begin and then
slowly turn the 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 Camelback 4-6-0 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 Camelback 4-6-0 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

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RailKing Camelback 4-6-0

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
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 Camelback 4-6-0 ProtoSound®-equipped locomotive tender is
equipped with a coil-wound ProtoCoupler™ for remote uncoupling action.
Because the ProtoCoupler™ is controlled through ProtoSound’s®
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. 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

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RailKing Camelback 4-6-0

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. 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
sound repeated two 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
other setting requires that a bell
button be used to “arm” the
brake feature and is explained in
more detail in the “Activating
Passenger Sounds” section found

Lubricate

Coupler
Knuckle

Figure 5: Lubricating The ProtoCouplers

Throttle Down From
High Voltage To Low

Listen For The

Squeaking Brake Sounds

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RailKing Camelback 4-6-0

later in this manual. The sound itself is a stored record on the
ProtoSounds® software chip and will always play the same brake 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 determine how quickly to throttle down and at 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 Passenger 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 squeaking sound plays, but you don’t need to reduce the
transformer throttle to activate the squeaking 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.

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RailKing Camelback 4-6-0

PASSENGER ANNOUNCEMENTS (PFA)

ProtoSounds® is now equipped with operator controlled passenger station
announcements, hereby known as PFA. This easy to use feature plays
digitally reproduced passenger station sounds whenever your engine stops

at a train station on your layout. 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 the PFA feature is enabled.
These different sounds are heard each time you cycle the transformer

throttle from on to off in the same manner that you would cycle the throttle
to enter the various states of forward, neutral and reverse. The entire PFA
sequence is designed to simulate the arrival, disembarking, embarking, and

departure of a train entering and leaving a train station. The sounds include
public address arrival and departure messages, passenger disembarking and
embarking sounds, conductor voices and general train station ambient
sounds. Each is described in more detail in the following sections.

ACTIVATING PASSENGER SOUNDS

Your ProtoSounds® equipped engine features an operator controlled
passenger station sound set. Once activated, this easy to use feature plays
digitally reproduced sounds of a passenger station whenever you stop your

engine in the neutral position at a train station on your layout.

ARMING THE PASSENGER SOUNDS FEATURE

Before the passenger station 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.

Option 1: If you are using a separate bell button controller to ring your

bell (like the Lionel Railsounds® No. 5906 bell activation button) you can
activate the feature by
pressing and holding the
bell button for three
seconds or longer (it
doesn’t matter if you are
in forward, neutral or
reverse). You will hear

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

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RailKing Camelback 4-6-0

the bell chiming turn on and if you listen carefully you should hear a
whistle blast sound after three seconds have passed at which time you can

release the bell button. (

Note:

because the whistle blast sound is hard to
hear, we recommend that you count out a full three seconds before
releasing the bell button.) The bell will continue to chime, so if you want to

turn off the bell ringing, simply press and release the bell button a second
time. If you were in neutral when you triggered the brake feature, interrupt
the transformer throttle to enter either forward or reverse to allow the
engine to begin running. (Note: the feature will only be activated in the

first direction state you enter after triggering the feature from the neutral
position. You cannot interrupt the power twice to enter another direction
state and still have the passenger sound feature active.) Once your engine

begins running, you can trigger the sounds to begin playing whenever you
enter neutral.

Option 2 If you do not have a separate bell button on your layout, you can

still activate the feature with your transformer whistle button. To activate
the feature turn on the transformer throttle and get your engine into the

neutral position (not RESET). Once in neutral, set the transformer throttle
at 8 volts or less and press and hold the whistle button for at least three
seconds. You will hear the bell chiming turn on and if you listen carefully

you should hear an whistle blast sound after three seconds have passed at
which time you can release the whistle button. (

Note:

because the whistle

blast sound is hard to hear, we recommend that you count out a full three
seconds before releasing
the whistle button.) The

bell will continue to chime,
so if you want to turn off
the bell ringing, simply
press and release the bell
button a second time.
Interrupt the transformer
throttle to enter either
forward or reverse to allow the engine to begin running. (Note: the feature

will only be activate in the first direction state you enter after triggering
the feature from the neutral position. You cannot interrupt the power twice

to enter another direction state and still have the feature active.) Once your

engine begins running, you can trigger the sounds to begin by entering
neutral.

Put Engine In Neutral
At Low Power

Press & Hold

The Whistle Button

For 3 Seconds

Listen For The

Start Of The Bell Sound

Listen For The

Whistle Blast Sound

After 3 Seconds

H

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RailKing Camelback 4-6-0

ACTIVATING AND TRIGGERING PASSENGER
STATION ANNOUNCEMENTS

Before PFA can be heard the feature must be activated first. Activation is
accomplished by holding down the bell button for three or more seconds as

described in the Activating and Triggering The Passenger Station Sounds
section found earlier on page 10.

Once the feature is activated, PFA will be played the next time the engine
enters the neutral position. In order for PFA to begin, power must remain

on once the engine enters the neutral position. At this point ProtoSounds®
has taken over control of your engine and disabled the bell and whistle
buttons from any further operator functions. In addition, ProtoSounds® has

reconfigured the way the reverse unit functions by disabling the reverse unit
state during operation of the PFA feature. This forces the engine to leave

your station in the same direction it arrived. The following operator
controlled “events” control PFA’s actions and sounds.

Event 1 (Forward) While the locomotive is running in forward (or

reverse) PFA is activated by the operator pushing and holding the bell
button down for three or more seconds. The locomotive bell begins

chiming and can be left on or turned off without disabling PFA.

Event 2 (Neutral Before Reverse) The operator now interrupts the

transformer throttle to stop the engine and put it into neutral. If the throttle
setting was at 14 volts or higher, ProtoSounds will play the sound of
squealing brakes as the engine comes to a stop.

I. Upon stopping of the engine, the operator must immediately turns
the throttle back on as the engine sits in
neutral. If the bell was not turned off
after activating PFA, it now turns off

automatically.

Note: Failure to turn the throttle back on

within 3 seconds of leaving the forward phase will
disable PFA and shutdown ProtoSounds®. The next
time you turn power back on your engine will be in the RESET position. See page 5
for more information.

Put Engine In Neutral

At Low Power

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RailKing Camelback 4-6-0

II. After entering neutral, ProtoSounds® will immediately play an
air release sound followed approximately two seconds later by an
arrival message. The arrival message lists
the train by name and the track it arrived
on (the track is identified as either track 1
or track 2, alternating each time during
the current operating session).
Immediately following the arrival

message, the sound of the trains’ doors
opening can be heard, followed by a

conductor’s warning to passengers to
“watch your step.” At this point, various randomly activated ambient

train stations sounds will begin playing and replaying as long as the
engine sits in this neutral state (Neutral Before Reverse). The sounds

include passenger footsteps as they disembark, muffled voices,
baggage being moved about, crashing sound, and whistling for a taxi.
In addition, several highlight or foreground sounds play including
more conductor voices saying “watch your step”, “have a nice day”,
and “baggage to the right”.

Event 3 (Reverse) The operator now interrupts the transformer throttle

again to enter the next reverse unit phase; reverse. In an effort to enhance
realism, PFA has disabled the reverse
phase so that it doesn’t power the motors
and cause the engine to move backward.
Upon entering reverse, PFA confirms to
the operator that it has entered the reverse
state by immediately playing the highlight
sound of the conductor’s voice saying
“baggage to the right.” This is followed

by the continued ambient sounds of
passenger footsteps, muffled voices,

baggage being moved about, crashing sound and whistling for a taxi. These
sounds and the conductor highlight are randomly repeated as long as the
system remains in the “reverse” state.

Listen For Air Release Sound

And PA Arrival Message

Listen For Conductor

To Say ...

Interrupt Throttle To
Enter The Next Phase

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RailKing Camelback 4-6-0

Event 4 (Neutral Before Forward) The operator now interrupts the

transformer throttle again to enter the next reverse unit phase; neutral before
reverse. PFA confirms to the operator that it has entered the neutral before
forward phase by emitting two quick air release sounds. This is followed
by a public address message that the train on
track 1 or 2 (whichever track number the
arriving public address message stated) is
now boarding. Upon completion of the PA
message, two conductor voice highlights
randomly begin playing. These conductor
voices include “Welcome Aboard” and
“Tickets Please”. In addition to the two

conductor highlights, the station ambient
sounds continue and still include passenger

footsteps, muffled voices, baggage being moved about, crashing sound and
whistling for a taxi.

Event 5. (Forward)

The operator now interrupts the transformer

throttle again to enter the next reverse unit phase; forward. PFA confirms
to the operator that it has entered the forward phase by playing a conductor
voice yelling “All Aboard!” Immediately after playing “all aboard”, the
sound of the doors closing is heard. Within two seconds of the doors
closing, the locomotive bell begins chiming
and the air compressor pumps start. After
approximately 7 chimes of the bell, the
engine automatically begins moving out in
the forward phase with the bell continuing to
ring another 7 chimes before automatically
turning off. Once the bell turns off the
operator regains control of the transformer
whistle and bell buttons and can ring the bell

or blow the whistle as usual.

Note:

When entering the forward phase of PFA, it is important to set the transformer
throttle at a high enough setting that will allow the engine to begin moving once PFA
automatically activates the motors. Otherwise, the engine will just sit still until you increase

the throttle setting on the transformer.

Listen For The

Conductor To Say ...

Interrupt Throttle To
Enter The Next Phase

Listen For 2

Air Release Sounds

Interrupt Throttle To
Enter The Next Phase

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RailKing Camelback 4-6-0

TIPS ON USING THE PFA FEATURES

PFA is a unique feature of ProtoSounds® that is completely controlled by the
operator. You decide how, when or if you want to utilize the feature. By

reviewing following tips you should find solutions or suggestions to the various
operating scenarios you might encounter when using PFA.

Tip #1: You can escape the PFA sequence by interrupting the transformer

throttle before the first PA arrival message plays in Event 2 (neutral before
reverse).

Tip #2: You can terminate PFA at anytime by turning the transformer

throttle off for 15 seconds.

Tip #3: You do not have to be in the forward state to utilize PFA. For

example if you activate the PFA feature while in reverse and interrupt the
throttle to enter neutral, you will be entering neutral before forward rather than

neutral before reverse as defined in Event 2 above. Consequently, the forward
phase will be rendered inactive by ProtoSounds® instead of the reverse state as

explained in Event 3. This will allow your train to leave the train station in the
same reverse direction that it arrived in.

Tip #4: You can utilize PFA even if you are double-heading with another

engine, regardless of whether it is equipped with ProtoSounds® or PFA. If the
engine isn’t equipped with PFA, the only thing to remember is that you not turn

up the transformer throttle very high when entering the reverse state found in
Event 3. If the throttle is set too high, then the second locomotive will begin

vibrating on the track as its motors will be turning in the reverse state since
engines not equipped with PFA cannot disable the reverse state and will thus

continue powering their own motors. If your second engine is equipped with
PFA, it can be disabled by entering RESET function 28. See the section on
programming RESET functions on page 18 of this manual to disable PFA.

Tip #5: It is not necessary for the squeaking brake sounds to be heard to

play the PFA sounds. For example, the brake sounds won’t be heard if the high
voltage setting is below 13 volts and the power is interrupted to enter the

neutral state.

Tip #6: You can leave any of the event states at any time after entering the

state by simply interrupting the transformer throttle. Any sound effects
programmed to play in that event will simply not occur. The only exception is
Event 2 and Event 5. In Event 2, interrupting the throttle has no affect on PFA
until after the PA arrival message has played and the doors have opened. In
Event 5, you cannot interrupt PFA until after the engine begins to move.
Interrupting the throttle before the engine begins to move has no affect on the
locomotive.

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RailKing Camelback 4-6-0

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 squealing sounds.

SELF-RECHARGING BATTERY BACKUP

ProtoSounds® state-of-the-art design includes a self-recharging battery
backup system for improved performance at any speed. The battery ensures
that power to the sound system will remain on during directional changes,
setting RESET options or when traveling over dirty track and switches. The
self-recharging battery backup system is automatically turned on or off
whenever track power is turned on or off. There are no switches needed to

enjoy the benefits of the automatic battery backup system.

ProtoSounds® contains a warning alarm if the battery backup system fails
to automatically disengage when track power is turned off. Should the

backup system fail, you will hear a repeating whistle blast indicating this
has occurred. Should this happen, unplug the battery from the

ProtoSound® module (to prevent the battery from being run down) and
contact MTH for instructions on returning the tender for repair.

REPLACING THE PROTOSOUNDS® BATTERY

The ProtoSound® battery (located in the tender body), is a special NiCad
7-cell, 8.4v battery - NOT the 6-cell, 7.2v battery found in most

convenience stores. The 6-cell NiCad is NOT recommended for use with
ProtoSound® applications. The battery is continually charged from the

track when power is applied and should last for up to five years. In
addition, the NiCad battery is a dry battery and should not leak or cause any

damage to your locomotive during its lifetime.

If you notice that the sounds seem distorted or garbled at low voltages or
become silent when power from the transformer is shut off, the battery may
be going bad. Before replacing the battery, you should put the engine in
NEUTRAL and leave the transformer throttle set at about 12 volts for 15
minutes. This should temporarily recharge the battery. If the garbled or
distorted sounds are reduced, then your battery charge has worn down. You
can give your battery a full charge by leaving the engine ON in the
NEUTRAL position for 18 hours. (Make sure the smoke unit switch is in
the OFF position to prevent harm to the smoke unit wicking).

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RailKing Camelback 4-6-0

If you need to replace the battery, replacement ProtoSound® batteries are
available from MTH ProtoSound® Electronics at 7020 Columbia Gateway
Drive, Columbia, MD 21046. A standard 9v alkaline battery can be
substituted as a temporary fix, but since alkaline batteries can’t take a
charge, it will eventually wear down. Regardless, it should give you a week
to a couple of months use while you wait for your replacement
ProtoSound® battery to arrive.

PROTOSOUND® VOLUME ADJUSTMENT

Your ProtoSound® system has two types of volume adjustment. A
manual turn knob on the bottom of the chassis (See Fig. 6 below) allows

you to control all the sounds in the system and a remote control “RESET"
option (Option # 6), allows you to control the volume level of the engine
sounds remotely from the transformer. Turning the volume adjustment
knob clockwise will increase the volume and counterclockwise will lower
the volume of all sounds; bell, whistle, engine sounds, enhanced neutral
sounds, etc. For information on operating the RESET volume adjustment
option, see the section entitled “Programming ProtoSound® RESET
Options” on the following pages.

Proto Sound manual

adjustment knob

Figure 6: Adjusting The ProtoSound® Volume

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RailKing Camelback 4-6-0

USING “RESET" TO PROGRAM
PROTOSOUNDS®

As mentioned earlier, there are several programmable options in each
ProtoSound®-equipped engine that can be remotely set from any
compatible standard AC transformer equipped with a whistle button. For a
list of compatible transformers, see the chart on page 34. This hands-off

approach gives you unprecedented control of your railroad empire’s motive
power never before seen in model railroading. Each programmable feature
can be accessed whenever your engine is in the RESET state as described

earlier on page 5. By following the instructions below you will find the
programming easy and straight forward.

ENTERING RESET OPTIONS

ProtoSound® is equipped with a few programmable features that are
accessed in the RESET state by moving the transformer throttle up and

down between full voltage and low voltage (6 to 8 volts) without shutting
the transformer off completely. Each time this is done you advance, one
feature at a time, through the available options. An air-release sound is

heard each time the throttle is advanced. In addition, there are special
sounds to tell you what RESET position you are in.

For example, if you want to select Feature 2, you put the engine in
RESET, and move the throttle up and down from full throttle to low two
times. After the second advance, you will hear two “clinks" indicating that
the computer is now in Feature 2. Advance the throttle again and you will
hear three “clinks" for Feature 3. Advance it two more times and you will
hear a “clank" indicating
that you are now in
Feature 5. Advance the
throttle two more times

and you will hear a
“clank" and two “clinks"

indicating Feature 7. ((5
throttle advancements = 1

clank) + (2 throttle
advancements = 2 clinks)). “Clank + “Clink" + “Clink" = Feature 7. You

can advance the throttle as quickly as you like (though you may not hear the
air-release sounds) and the computer will still remember the number of

In RESET Mode

Move The Throttle

Up & Down From

High Voltage To Low

2 Times

Advance The Throttle

Up & Down From

High Voltage To Low

4 More Times

Listen For The

2 Clink Sounds

Listen For 1 Clank

And 1 Clink Sounds

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RailKing Camelback 4-6-0

times the throttle is advanced by playing back the number of “Clinks" and
“Clanks" to confirm the feature you’ve selected.

SETTING THE ENGINE VOLUME

Of all the sounds that come with each ProtoSound®-equipped locomotive,
the one most often turned down is that of the engine volume because it is
the one sound normally heard whenever the engine is running and is what
usually can become tiresome to the ear over prolonged running sessions.
The volume adjustment is controlled through RESET Feature 6.

To access the feature, advance the transformer throttle to put the engine in
RESET. Move the throttle up and down, as described on page 5, 6 times.
After you hear the “clank" and “clink" indicating that you are in Feature 6,
press the whistle button to select the engine volume level you desire.

Pushing the whistle button once will give you full volume, which is the
factory setting. Pushing the whistle button a second time will give you 50%

volume, pushing it a third time will give you 25% volume and pushing it a
fourth time will give you no sound. The microprocessor will immediately
play the sound level each time the whistle button is pushed so that you can

decide if it is acceptable. You can recycle through the four choices by
simply continuing to

press the whistle button.

Once you have decided
on the appropriate
volume level, turn the
transformer throttle off
and on again or press
the transformer direction switch to lock in your selection. The volume
adjustment will remain set at the level you have chosen until you change it

again. Regardless of the engine volume setting, the whistle, bell,
compressor and neutral sounds will function normally. In fact because only

the engine volume is affected by selections in Feature 6, when you select 0
volume, you can still hear the whistle, bell and neutral sounds when the

engine is running or in neutral.

In RESET Mode

Move The Throttle

Up & Down From

6 Times

Listen For 1 Clank

And 1 Clink Sounds

Push The Whistle Button

Until You Reach The

Setting You Desire

Interrupt The Throttle

To “Lock-In”

The Volume Setting

H

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RailKing Camelback 4-6-0

PROGRAMMING FOR A SEPARATE BELL BUTTON
CONTROLLER

To operate ProtoSounds® with
a separate bell button controller,

like the Lionel® No. 5906 bell
button, you will need to wire up
the controller to your
transformer and track as shown

in Fig. 7. Once the button is
wired, ProtoSounds® comes

preprogrammed to allow you to
operate the bell by simply
pushing the bell button once.
To turn the bell off, push the

button again. If the bell doesn’t function when you press the button, you
may need to re-program ProtoSounds® to operate with a separate bell

button controller. To do this enter RESET and go to Feature 20. (See the
section Using RESET To Program ProtoSounds®on page 18.) Once in

Feature 20, press the whistle button and wait for the module to sound a bell
ding(s). Continue
pushing the whistle

button until the module
plays back two dings

(signifying that the
module has been
programmed for a bell
button). Simply turn the

throttle off and then on again to “Lock-In" the new setting. To reset the
computer to its original factory (default) setting (separate bell button
operation), repeat the above procedure but keep pushing the whistle button

until the computer only responds with one bell ding.

PROGRAMMING FOR SQUEAKING BRAKE
OPERATION

ProtoSounds® can be programmed for squeaking brake operation in three
different manners; (1)Squeaking brakes can be activated by bell button

control, (2)they can be programmed for continuous operation subject to
throttle changes or (3)they can be programmed to be turned off. The default

setting is (2) Squeaking brakes are in continuous operation as described on
page 8. To change the default setting, enter RESET and go to Feature 45.

Common

RED Wire

BLACK Wire

UAUBUCU

D

Figure 7: Wiring Up A Bell Button

In RESET Mode

Move The Throttle

Up & Down From

High Voltage To Low

20 Times

Listen For 4 Clank

And 0 Clink Sounds

Push The Whistle Button

Until You Hear 2 Dings

Interrupt The Throttle

To “Lock-In”

The Bell Button Setting

H

21

RailKing Camelback 4-6-0

(See the section Using RESET To Program ProtoSounds® on page 18).
Once in Feature 45, press the whistle button and wait for the module to
sound a bell ding(s). Continue pressing the whistle button until the module
plays back three dings for option 3 - Squeaking brakes OFF. Press the
whistle button again until the module plays back one ding(s) for option 1 ­Squeaking brakes activated by bell button. Once you have decided on the
desired setting, simply
turn the throttle off and

then on again to
“Lock-In” the new

setting. To reset the
computer to its original

factory default setting
(option 2 - squeaking

brakes in continuous
operation, repeat the above procedure but keep pushing the whistle button
until the module only responds with two bell ding(s).

PROGRAMMING FOR WHISTLE IN NEUTRAL
OPERATION

If you are operating your engine with a separate bell button and want to
blow your whistle when your engine is in neutral, you will need to program

ProtoSounds® to do so as the factory setting only allows the whistle to
blow in forward or reverse. To do this, enter RESET and go to Feature 25.
(See the section Using RESET To Program ProtoSounds® on page 18.)
Once in Feature 25, press the transformer whistle button and wait for

ProtoSounds® to sound a bell ding(s). Continue pressing the whistle button
until ProtoSounds® sounds two bell dings (signifying that ProtoSounds®

has been programmed to
sound the whistle in neutral).
Turn the throttle off and then
on again to “Lock-In" your

selection. Now, whenever
you are in neutral, you can

blow the horn with the
transformer whistle button.

To reset ProtoSounds® to its
original factory setting of no

In RESET Mode

Move The Throttle

Up & Down From

High Voltage To Low

25 Times

Listen For 5 Clank

And 0 Clink Sounds

Push The Whistle Button

Until You Hear

2 Bell Dings

Interrupt The Throttle

To “Lock-In”

The Whistle Setting

H

In RESET Mode

Move The Throttle

Up & Down From

High Voltage To Low

45 Times

Listen For 9 Clank

And 0 Clink Sounds

Push The Whistle Button

Until You Hear The

Appropriate # Of Dings

Interrupt The Throttle

To “Lock-In”

The Brake Setting

H

22

RailKing Camelback 4-6-0

horn in neutral, repeat the above procedure but keep pressing the whistle
button in Feature 25 until ProtoSounds® only dings once instead of twice.

Note: When “Whistle In Neutral" is set, the bell will only operate with a separate bell button
and the whistle will not sound in neutral if the transformer throttle setting is over 11 volts. At
11 volts or higher, ProtoSounds® may arm the coil coupler for operation whenever the whistle
button is pressed and the engine is in neutral.

PROGRAMMING FOR PROTOCOUPLER OPERATION

ProtoSounds® comes with a RESET feature that allows the operator to
remotely turn off the ProtoCoupler™ functions. This is especially useful
when double or triple-heading ProtoSound® equipped engines since every
engine equipped with a ProtoCoupler™ will fire when prompted to by the
operator. By turning off the
ProtoCoupler™ operation on

certain engines, you can fire
the couplers open on the

other engines without
uncoupling the engines from
each other. To turn the

ProtoCoupler™ function off,
enter RESET and go to

Feature 10. (See the section
on Using RESET To

Program ProtoSounds® on page 18.) Once in Feature 10, press the
transformer whistle button and wait for ProtoSound® to sound a bell
ding(s). Continue pressing the whistle button until ProtoSounds® sounds
two bell dings (signifying that the ProtoCoupler™ option has been turned
off). Simply turn the transformer throttle off and then on again to lock in
the new setting.

In RESET Mode

Move The Throttle

Up & Down From

High Voltage To Low

10 Times

Listen For 2 Clank

And 0 Clink Sounds

Push The Whistle Button

Until You Hear

2 Bell Dings

Interrupt The Throttle

To “Lock-In”

The Coupler Setting

H

23

RailKing Camelback 4-6-0

PROGRAMMING FOR SQUEAKING BRAKES AND
PFA OPERATION

ProtoSounds® is equipped with a RESET setting to turn off the Passenger
Station Proto-Effects (PFA) features. This is especially useful if you are

double-heading engines that are both equipped with PFA. You may not
want to stop at a station and have both engines playing their PFA sound
effects. To turn off PFA,
enter RESET and go to

Feature 28. (See the section
on Using RESET To

Program ProtoSounds® on
page 18). Once in Feature
28, press the transformer
whistle button and wait for

ProtoSounds® to sound a
bell ding(s). Continue

pressing the whistle button until ProtoSounds® sounds two bell dings
(signifying that the PFA features have been turned off). Simply turn the

transformer throttle OFF and then ON again to lock in the new setting. To
reset ProtoSounds® to its original factory setting of PFA on, repeat the
above procedure but keep pressing the whistle button in Feature 28 until

ProtoSounds® only dings once instead of twice.

ACTIVATING REMOTE LOCK-OUT CONTROL

ProtoSound® equipped engines feature a RESET setting that allows the
operator to remotely “lock” the engine into forward, neutral or reverse.
This is especially useful on layouts that feature “blocked” track sections.
The lockout feature comes from the factory in the OFF position, meaning it
is not active when you first take the engine out of the box. This is done to
prevent novice operators
from accidentally locking
their engine into forward,
neutral or reverse and then
mistakenly thinking that the
engine’s electronics have
failed. To activate the
Remote Lockout Control

setting, go to RESET
Feature 40 (See the section

In RESET Mode

Move The Throttle

Up & Down From

High Voltage To Low

28 Times

Listen For 5 Clank

And 3 Clink Sounds

Push The Whistle Button

Until You Hear

2 Bell Dings

Interrupt The Throttle

To “Lock-In”

The PFA Setting

H

In RESET Mode

Move The Throttle

Up & Down From

High Voltage To Low

40 Times

Listen For 8 Clank

And 0 Clink Sounds

Push The Whistle Button

Until You Hear

2 Bell Dings

Interrupt The Throttle

To “Lock-In”

The Lock-Out Setting

H

24

RailKing Camelback 4-6-0

entitled Using RESET To Program ProtoSounds® on page 18). Once in
Feature 40, press the transformer whistle button and wait for ProtoSounds®
to sound a bell ding. Continue pressing the whistle button until
ProtoSounds® sounds two bell dings signifying that the Remote Lockout
Control has been selected. To lock in the setting, simply turn the throttle all
the way off and then back on again. To turn the Remote Lockout Control
setting back off, go back to Feature 40 and press the whistle button until
only one bell ding sounds. To lock in the setting, simply turn the

transformer throttle off and then back on again. Alternatively, you can go
to RESET Feature 18 to reset all ProtoSound® features back to their

original factory defaults including Remote Lockout Control.

RESETTING ALL PROTOSOUND® OPTIONS TO
FACTORY DEFAULTS

ProtoSounds® is equipped with a RESET feature (Feature 18) that resets
all programmable options back to their original factory settings. This is a

useful feature if you find your engine not operating the way you think it
should and don’t want to take the

time to check each RESET
feature one at a time. To reset all
the RESET features back to their

original factory settings, enter
RESET and go to Feature 18.

(See the section entitled Using

RESET To Program
ProtoSounds® on page 18).

Once in Feature 18, press the
transformer whistle button and wait for ProtoSounds® to sound a garbled

bell sound, then interrupt the transformer throttle to enter the forward phase.

In RESET Mode

Move The Throttle

Up & Down From

High Voltage To Low

18 Times

Listen For 3 Clank

And 3 Clink Sounds

Push The Whistle Button

Until You Hear

A Warbled Bell Ding

Interrupt The Throttle

To “Lock-In”

The Default Setting

H

25

RailKing Camelback 4-6-0

REVERSE UNIT LOCK-OUT OPERATION

ProtoSounds® unique design eliminates the need for a lock-out switch on
the locomotive by allowing the customer to lock the engine into any
directional state (forward, neutral or reverse) from the transformer. This

will allow users to run the engine on layouts equipped with block signals or
stop stations which would normally cycle the engine back into neutral. The
feature must be first turned on by accessing RESET Feature 40 (See page

23).

LOCKING THE ENGINE INTO FORWARD OR
REVERSE

To lock the engine into Forward or Reverse, use the transformer throttle to
enter Forward or Reverse (whichever state you want to lock the engine into)

and while the engine is moving press the whistle button. WHILE THE
WHISTLE IS BLOWING TURN THE THROTTLE OFF AND THEN LET

GO OF THE WHISTLE BUTTON. After about one second, you will hear
a short whistle blast. QUICKLY TURN THE THROTTLE BACK ON

AGAIN. Your engine is now locked into Forward or Reverse and it will
remain so until you unlock the engine, even if you wait a year to run your

engine again.

UNLOCKING THE ENGINE

Unlocking the engine is a similar procedure. WHILE THE ENGINE IS
MOVING, PRESS THE WHISTLE BUTTON. WHILE THE WHISTLE

IS BLOWING, TURN THE THROTTLE OFF AND THEN LET GO OF
THE WHISTLE BUTTON. After three seconds without power you will
hear one chime of the RESET bell. TURN ON THE POWER AGAIN.
Your engine is now in RESET and will operate normally once you interrupt
power and enter the forward direction.

LOCKING THE ENGINE INTO NEUTRAL

To lock the engine into the NEUTRAL position, PUT THE ENGINE IN
NEUTRAL AND WITH THE THROTTLE STILL ON, PRESS THE

WHISTLE BUTTON. WHILE THE WHISTLE BUTTON IS BEING
PRESSED, TURN OFF THE THROTTLE AND LET GO OF THE

WHISTLE BUTTON. After about one second, you will hear a short blast

26

RailKing Camelback 4-6-0

of the whistle. QUICKLY TURN THE POWER BACK ON AGAIN. Your
engine is now locked into NEUTRAL.

NOTE: When locking the engine in the Forward or Reverse positions, the whistle button will
blow the whistle. But when locking the engine into the NEUTRAL position, the whistle button
may turn on or off sounds of the bell, coupler arming or coupler firing depending on the
transformer throttle voltage settings prior to the user’s attempt to lock out the engine.
Remember, the whistle doesn’t blow in NEUTRAL (unless you programmed it to do so using
Feature 25. See page 21 for details), only the bell rings or the coupler operates in NEUTRAL.
While it doesn’t make any difference on how the lockout function operates, you may hear one

of the three different NEUTRAL-activated sounds.

To unlock the engine from the NEUTRAL position, follow the process to
unlock the engine in the Forward or Reverse directions above.

MANUAL REVERSE UNIT LOCKOUT
(Non-ProtoSound® Equipped Engines)

Engines not equipped with ProtoSound® can be manually locked into
Forward, Neutral or Reverse by sliding the lockout switch located on the
tender chassis to the OFF position after entering the desired reverse unit

direction state (See Figure 9 on page 27). To operate the engine in
automatic mode again, simply slide the switch back to the ON position.

Note: Once the unit is locked out and an hour or more of non-use has passed, the reverse unit
may cycle into any of the three directional states. Should this occur, the ON/OFF switch
should be reset to the ON position to regain normal operation.

27

RailKing Camelback 4-6-0

OIL & LUBRICATION INSTRUCTIONS

In order for the engine to perform correctly and quietly, it is important that
the chassis be lubricated before operation. Lubrication should include all
side rods and linkage components and pickup rollers to prevent them from

squeaking. Use light household oil and follow the lubrication points
marked “L" in Fig. 8 and 9 above and below.

The locomotive’s internal gearing has been greased at the factory and
shouldn’t need additional grease until after 50 hours of operation or one

year whichever comes first. Grease can be added by inserting grease into
the gear box inside the locomotive chassis. In order to access the gear box,

the boiler must be removed from the chassis by unscrewing the four chassis
screws as seen in Figure 10 on page 28. Once the boiler is removed, the

gear box can be opened up by unscrewing the three screws on the plate
located in front of the motor. Grease can then be applied into the gear box

using a grease tube dispenser.

G - (Grease)

L

Front Chassis
Mounting Screws

Rear Chassis
Mounting Screws

“G” Grease

Truck Tongues

L

(behind leading

truck)

Figure 8: Lubricating The Locomotive Chassis

Tender Body

Mounting Screws

L

Figure 9: Lubricate The Tender Chassis Trucks

28

RailKing Camelback 4-6-0

In addition to the internal gearing, it is a good idea to lubricate the leading
and trailing locomotive truck “tongues” to enhance their ability to slide on
the chassis. Follow the grease points as seen in Figure 8 on page 27.

Periodically, check the locomotive wheels and pickups for dirt buildup as
this can significantly affect the engine’s ability to perform properly. Dirty
track and dirty wheels can cause both poor electrical contact as well as poor
traction, especially on elevated track sections. Finally, dirt and oil build up

can prematurely wear out the neoprene traction tires.

TRACTION TIRE REPLACEMENT
INSTRUCTIONS

Your locomotive is equipped with two neoprene rubber traction tires on
the rear set of flanged drivers. While these tires are extremely durable and

long-lasting there may arise a time where they will need to be replaced.
Should this occur, you will need to remove the side rods from the wheels in
order to slip the new tire over the grooved drive wheel.

Before the new tire can be installed, you must make sure the old tire has
been completely removed from the groove in the drive wheel. Use a razor

blade or small flatblade screwdriver pry away any remains left from the old
tire that may still be in the drive wheel groove. Once the old tire has been
completely removed, slip the new tire onto the wheel. You may find it
useful to use two small flatblade screwdrivers to assist you in stretching the

tire over the wheel. Be careful to avoid twisting the tire when stretching it

Front Chassis

Mounting Screws

(behind leading

truck)

Figure 10: Removing The Boiler From The Chassis

29

RailKing Camelback 4-6-0

over the wheel. If a twist occurs, the tire will have to be removed and
reinstalled or a noticeable wobble in your engine will occur when operating
the locomotive. In addition, it is important to make sure that the tire is
fully seated inside the groove. Any portion of the tire extending out of the
groove can cause the engine to wobble. A razor blade can be used to trim
away any excess tire that doesn’t seat itself inside the groove properly.

Replacement tires are available directly from MTH Electric Trains.

HEADLIGHT REPLACEMENT

The locomotive headlight is controlled by the track voltage and will glow
with greater intensity depending on the transformer voltage setting. The

headlight can be easily removed from its lampholder should the bulb expire.
To remove the bulb, follow the boiler removal instructions found in the
Lubrication section on the proceeding pages. Once the boiler has been
separated from the chassis, gently unscrew the bulb from its socket.
Replacement bulbs are available directly from MTH Electric Trains.

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RailKing Camelback 4-6-0

TROUBLE SHOOTING PROTOSOUND®
PROBLEMS

Although ProtoSound® has been designed and engineered for ease of use,
some questions may arise during initial operation. The following table
should answer most questions. If you find that your problem can’t be
resolved with this manual, contact MTH ProtoSound® Electronics (7020

Columbia Gateway Drive, Columbia, MD 21046, 410-381-2580) for
additional assistance.

WHISTLE PROBLEMS REMEDY

The WHISTLE seems distorted at low voltages.

Your battery may be undercharged or dead. Try
recharging the battery as explained in the battery
sections.

When I press the whistle button, the bell comes on
instead.

You are trying to operate the whistle in neutral. The
whistle will only operate in Forward or Reverse unless
you program ProtoSounds through Feature 25. See
the instructions in the section entitled “Using RESET to
Program ProtoSounds”. Also check the transformer
wiring to the track.

I can’t get the whistle to blow when I press the whistle
button.

You may be pressing the whistle button too quickly.
Most older AC transformers contain a two--step whistle
button that releases a DC signal onto the track. It is
this DC signal that tells the whistle to blow. However,
because the signal is weaker when the whistle button
is depressed fully, the ProtoSound circuit may not
recognize the signal. Try pressing the whistle button
slower, taking approximately 1 second to fully depress
the button.

BELL PROBLEMS REMEDY

When I press the whistle button to activate the bell, the
whistle sounds.

You are trying to ring the bell in Forward or Reverse.
The bell only operates in Neutral unless you have
programmed ProtoSounds to recognize a separate bell
button.

When I press the whistle button to activate the bell, I
arm the coupler.

Reduce the voltage on the transformer before pressing
the whistle button to activate the bell. The bell will only
come on at 8 volts or less.

When I press the whistle button to activate the bell, the
bell only rings once.

You are trying to ring the bell in RESET instead of
neutral. Interrupt the power twice to enter Neutral, set
the voltage at 8 volts or less and press the whistle
button to activate the bell.

I can’t get the bell to ring when I press the whistle
button.

You may be pressing the whistle button too quickly.
See the 3rd remedy in the whistle section above.

The bell won’t work with a separate bell button.

ProtoSounds must be programmed in order for a
separate bell button to function. Enter RESET function
number 20 (see the section entitled “Using RESET to
Program ProtoSounds”) and press the whistle button
until the bell sounds two dings. Simply turn the throttle
off and then on again to lock in the new setting. Also
check the bell button wiring diagram on page 20.

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RailKing Camelback 4-6-0

COUPLER PROBLEMS REMEDY

The ProtoCoupler™ won’t let the engine uncouple on
the “Fly”.

The power required to fire the coupler open when the
engine is on the “Fly” may be greater than the
ProtoSound system is capable of providing. As a
result, you may experience times when the coupler
won’t fire open. Unfortunately, the only solution is to
stop the engine and fire the coupler in Neutral. If that
doesn’t resolve the problem, try lubricating the coupler
knuckle and rivet as explained in the ProtoCoupler™
Operation section.

I can’t get the coupler to arm or fire open when I press
the whistle button.

You may be pressing the whistle button too quickly.
See the third remedy in the whistle section above.
Another possibility is that ProtoSounds has been
programmed to turn the coupler function off. See the
section entitled “Using RESET to Program
ProtoSounds”

Only one coupler will function when I press the whistle
button.

Only one coupler can operate at any one time. Use
the coupler selection switch on the bottom of the
chassis to choose which coupler you want active.

LOCKOUT PROBLEMS REMEDY

I can’t get the engine to run after I power up the
transformer. It sits still with the steam compressor
sounds running.

The engine is locked out into the Neutral position.
Follow the unlocking procedures in the Lockout
Section.

The engine won’t lock out into Forward, Neutral or
Reverse even after the short whistle blast sounds.

You are waiting too long to turn the throttle back on
after the short whistle blast sounds. The power must
be turned back on immediately after the short whistle
blast sounds or the engine will go back into RESET.
See the lockout procedure in the Lockout Section.

VOLUME PROBLEMS REMEDY

When I try to run the engine, the steam volume is OFF
or very low.

The steam volume has been programmed at a
reduced volume or to be silent. Go to RESET Feature
6 and adjust the volume. See the section entitled
“Using RESET to Program ProtoSounds” for more
information.

When I try to set the steam volume, it resets itself to
the original volume after I selected the new volume.

You are trying to set the volume with a poorly charged
or dead backup battery. See the section on Battery
Backup for more information.

When I try to set the Steam Volume to O Volume, I
still hear the neutral sounds.

When the steam volume is set to O, you will hear the
Neutral sounds because setting the steam volume only
controls the sound of the steam engine itself. All other
sounds, including neutral sounds, the whistle and bell
will continue to play at the volume level set by the
manual volume control knob located on the bottom of
the chassis. See the section entitled “ProtoSound
Volume Adjustment” for more information.

The sounds seem distorted, especially when the
whistle or bell is activated.

The overall ProtoSound volume has been set to high
creating the distorted sounds. Try turning the volume
control knob located on the bottom of the chassis
counter clockwise to reduce the overall volume level.

32

RailKing Camelback 4-6-0

BATTERY PROBLEMS REMEDY

I get no sounds when the engine shifts between the
direction states.

The battery may be dead or needs charging. See the
Battery Backup section for more information.

After I turn off my transformer, my engine continues to
make sounds before quitting with a ding of its bell.

ProtoSounds continues to sound for approximately 10
seconds after power to the track has been shut off.

The sounds distort at low voltages.

The battery is insufficiently charged or dead. Follow
the recharging instructions found in the section entitled
“Self Recharging Battery Backup System”.

A repeating whistle blast occurs after the power has
been shut down.

The ProtoSound module has an internal defect and
should be returned to the factory for proper repair or
replacement.

RESET PROBLEMS REMEDY

When I first turn the power on, the engine will not
begin to run. I have to turn the throttle off and then on
again to get the engine to operate.

This is normal behavior. When power to the track is
first turned on, ProtoSounds enters a “RESET” phase
at which time the engine undergoes a system check.
Power must be interrupted to get the engine into the
Forward Phase. See the section entitled “DCRU
Reverse Unit Operation” for more information.

Whenever I interrupt the power from RESET to enter
Forward, the engine goes back into RESET instead of
Forward. I know this occurs because the bell dings
twice.

Whenever ProtoSounds enters RESET after power
has been off for more than 15 seconds, the
microprocessor initiates a system check to determine
that everything is in working order. This system check
requires 2.2 seconds to complete during which time
the engine will play the steam startup sounds. We
recommend that you don’t interrupt the power in
RESET until the steam startup sounds have
completed. This will guarantee that the system check
will have been completed since the startup sounds
take longer than 2.2 seconds to play. If the problem
persists, we recommend that you operate the throttle
with a slower movement as you interrupt the power in
RESET and enter the Forward Phase

BRAKE SOUND PROBLEMS REMEDY

When the transformer is throttled down, the sounds
won’t play.

The brake features has not been activated. See the
section on activating the brake feature for more
information. The throttle voltage setting on the
transformer is either not starting high enough or
ending low enough to trigger the brakes sounds. Try
increasing the throttle setting to 14 volts or higher
before throttling down to 8 volts or less.

The brake sounds continue to play even after the
engine stops.

The brake feature sound record lasts for three
seconds. With practice you can control how quickly
you should stop the engine to keep it in sequence with
the sound of the brake’s squeaking.

The brake feature was activated in neutral after the
engine was running in forward, but the brake sounds
would not play when triggered after the engine went
back into forward or reverse.

The brake feature will only remain enabled if it is
triggered in the first direction state you enter after
activating the feature in neutral. You cannot interrupt
the power twice to enter another direction state and
still have the brake feature active. Therefore, in order
to make the brake sound feature operate in forward,
you must first activate the feature in the neutral
position that occurs after the engine was in the reverse
state.

After triggering the brake sound and stopping the
engine in neutral, the engine begins making passenger
station sound effects.

After you trigger the brake sounds, you cannot stop
the engine in neutral and leave the track power on
without activating the passenger station sounds. If you
don’t want to hear the passenger station sounds after
entering neutral, turn the power off for three seconds
to disable the passenger station sound effects.

33

RailKing Camelback 4-6-0

PFA PROBLEMS REMEDY

The PFA feature does not begin even after stopping
the engine and hearing the brake sounds.

The power was not turned back on once the engine
enter the neutral state thus disabling PFA. The
transformer throttle was interrupted too quickly in
neutral thus disabling PFA. Leave the throttle on in
neutral until after the PFA arrival message plays.

The PFA sound effects occasionally repeat
themselves.

ProtoSounds has a built--in random number generator
that randomly selects each sound clip to play.
Because there are only a total of 8 sound clips
available in each PFA event, it is probable that a
sound can occasionally be repeated one or more
times.

Once in PFA, the engine never goes in reverse.

So that the passenger station sound effects and
operation is as realistic as possible, ProtoSounds
disables the reverse unit state whenever PFA is
enabled. This way the engine never goes into reverse
as the operator cycles through the various PFA
events.

When the engine enters PFA event 5, the bell
automatically comes on.

PFA has a built--in command to turn on the bell when
the system enters Event 5. After approximately 15
rings of the bell, it automatically will turn off.

Whenever PFA is enabled, pressing the whistle and
bell buttons has no affect.

Because PFA must control various effects in each PFA
event, the bell and whistle functions are disabled until
either the PFA events have been completed, or the
engine is shut down for 3 or more seconds.

PROTOSOUND® RESET FEATURE CHART

The following chart lists the available features found in your ProtoSound®
equipped engine. The default settings are listed for each feature as well as

the operation of the feature. You can reset all features to their original
factory settings by accessing Feature 18 in RESET and then pressing and
holding the transformer whistle button until you hear a soft, warbled bell

sound.

RESET # OPERATION DEFAULT CLANKS/CLINKS

6 Engine Volume Full Volume 1 Clank/1 Clink
10 Coupler ON/OFF Coupler ON 2 Clanks/0 Clinks
18 Reset Default Settings 3 Clanks/3 Clinks
20 Remote Bell Button Bell Button Active 4 Clanks/0 Clinks
23 RESERVED RESERVED
25 Whistle In Neutral Whistle In Neutral OFF 5 Clanks/0 Clinks
27 Chuff Rate Full Chuff Range 5 Clanks/2 Clinks
28 PFA Enabled PFA ON 5 Clanks/3 Clinks
40 Lockout Enabled Lockout OFF 8 Clanks/0 Clinks
45 Squeaking Brakes Brakes Always ON 9 Clanks/0 Clinks

34

RailKing Camelback 4-6-0

TRANSFORMER COMPATIBILITY AND
WIRING CHART

ProtoSounds® is designed to work with any standard AC transformer that
uses a “Pure Sine-Wave" format. The chart below lists the many Lionel®
compatible transformers, such as the Lionel KW or ZW models. In
addition, the chart details how the terminals on these compatible

transformers should be attached to your layout. The Trainmaster system
from Lionel® will not function correctly with ProtoSounds® without
disrupting the sound effects. Therefore, whenever ProtoSounds® senses that

the Trainmaster system is being used, it automatically disables
ProtoSounds® sound effects. The operator retains control over the engine,

but no sound effects will play.

Transformer

Model

Center Rail Outside Rail

Min/Max.

Voltage

Power

Rating

Transformer

Type

Lionel 1032 U A 5-16v* 90-Watt Standard

Lionel 1032M U A 5-16v* 90-Watt Standard

Lionel 1033 U A 5-16v* 90-Watt Standard
Lionel 1043 U A 5-16v* 90-Watt Standard

Lionel 1043M U A 5-16v* 90-Watt Standard

Lionel 1044 U A 5-16v* 90-Watt Standard
Lionel 1053 U A 8-17v 60-Watt Standard
Lionel 1063 U A 8-17v 60-Watt Standard

All-Trol Left Terminal Right Terminal 0-24v 300-Watt Electronic

Cab-1/Powerma

ster

A U 0-18v 135V.A. Electronic

Dallee Hostler Left Terminal Right Terminal

Lionel LW A U 8-18v 75-Watt Standard
Lionel KW A or B U 6-20v 190-Watt Standard

MRC Tech II Left Terminal 2nd From Left 0-15v* 40V.A. Electronic

Lionel MW (not
recommended)

Outside Track

Terminal

Inside Track

Terminal

5-16v* 50V.A. Electronic

R.O.W. Red Terminal Black Terminal 0-24v 384-Watt Standard

Lionel RS-1 Red Terminal Black Terminal 0-18v 50V.A. Electronic

Lionel RW U A 9-19v 110-Watt Standard

Lionel SW U A Unknown 130-Watt Standard

Lionel TW U A 8-18v 175-Watt Standard

Lionel ZW A or D U 8-20v 275-Watt Standard

MTH Z4000 Red Black 5-22v 390-Watt Electronic

ProtoSounds® needs over 14 volts of power to operate properly. Overloading or using in-line
accessories with this transformer may lower the peak voltage below ProtoSounds® minimum

requirements.

35

RailKing Camelback 4-6-0

O-27 OPERATION

While the Camelback 4-6-0 engine is more than capable of operating on
O-27 curves and switches, you may find that certain light freight cars are
prone to derailing when being pulled or pushed by the Camelback 4-6-0

through O-27 switches. Should this occur, we suggest adding weight to the
cars making them heavier and less likely to derail.

WARNING:

When using electrical products, basic safety precautions should be
followed including the following:

-- Read this and all related manuals (transformer/power supply,
locomotive, etc.) thoroughly before using this device.

-- This device is not recommended for children under ten years of age
without adult supervision.

-- MTH recommends parents examine the toy transformer used to power
this device periodically for conditions that may result in the risk of fire,
electric shock, or injury to persons, such as damage to the primary or output
cord, plug blades, housing or other parts (including proper functioning of
the circuit breaker), and that, in an event such conditions exist, the
transformer should not be used until properly repaired.

Engine Parts

Name and NumberPart #

1.)Shell ( J.C.L & Reading )FB-1200084

2.)Cab ( J.C.L. # 631)FB-1200085

2.)Cab ( Reading # 650 )FB-1200086

3.)Air tank FB-1200087

4.)ScrewIA-0000021

5.)BellFB-1200002

6.)WhistleFB-1200088

7.)ScrewIA-0000118

8.)Handrail ( Right ) FB-1210023
(w/ stanchions)( boiler )

9.)Handrail ( Left ) FB-1220023
(w/ stanchions)( boiler )

10.)ScrewIA-0000040

11.)ScrewIA-0000028

12.)Handrail ( right )( boiler )FB-1210024

13.)Handrail ( left )( boiler )FB-1220024

14.)Steam generator (graphite)FB-1200089

15.)Stanchion ( black )FB-1200024

16.)Headlight housing ( # 631)FB-1200090

16.)Headlight housing ( # 650)FB-1200091

17.)Lens ( headlight )FA-0000004

18.)ScrewIA-0000018

19.)Number board ( # 631 )FB-1200092

19.)Number board ( # 650 )FB-1200093

20.)Lens ( marker light )( green )FA-1230024

21.)Bulb ( 18V )( screw base )CA-0230001

22.)Bracket ( light bulb )IH-0000075

23.)ScrewIA-0000011

24.)Pilot/steam chest ( black )DG-1230010

25.)ScrewIA-0000050

26.)ScrewIA-0000027

27.)Drive rod guide ( right )EA-1210006

28.)Drive rod guide ( left )EA-1220006

29.)Eccentric rod ( right )ED-1210018

30.)Eccentric rod ( left )ED-1220018

31.)Eccentric assembly ( right )ED-1210019

32.)Eccentric assembly ( left )ED-1220019

33.)Drive rod ( right )EC-1210017

34.)Drive rod ( left )EC-1220017

35.)ScrewIA-0000003

36.)Smoke unitAA-0000014

37.)Motion hangerEA-1200008

38.)ScrewIA-0000058

39.)Switch ( small )BB-0000009

40.)Contact springIE-0000015

41.)Contact spring baseBH-0000001

42.)Grommet IH-0000010

43.)Bulb ( grain of wheat )CA-0000012
( 18V )( 145.0mm long wires )

44.)Scr ewIA-0000015

45.)Insulator ( pick-up )( top )BD-0000047

46.)ScrewIA-0000089

47.)Contact spring boardBH-0000019

48.)Motor mountBI-0000030

49.)Motor ( RS-385PH )BE-0000040
( 11.0X30.0mm flywheel )(6.5X28.0mm wormgear )

50.)Wire harness plug PCBBB-0000016

51.)Drive block (3 axle)(black)DF-1200016

52.)DrawbarFB-1200094

53.)SpringIE-0000030

54.)ScrewIA-0000039

Name and NumberPart #

55.) Traction tireDE-0000027

56.)Side rodEC-1250014

57.)BoltIA-0000054

58.)Sleeve ( inner )( chrome )ID-0000058
( 5.3X6.5X7.8 )

59.)Sleeve ( outer )( chrome )ID-0000059
( 6.8X10.0X4.4 )

60.)ScrewIA-0000052

61.)ScrewIA-0000119

62.)Pick-upBD-0000048

63.)Insulator (pick-up)(bottom)BD-0000001

64.)NutIC-0000001

65.)SpacerID-0000014

66.)Bracket ( lead truck )IH-0000076

67.)PinIG-0000003

68.)Bracket ( lead truck )IH-0000077

69.)E-clipIF-0000004

70.)Lead truck DA-1230015
( black )( boiler )( 2 axle )

Camelback 4-6-0

36

RailKing Camelback 4-6-0

37

RailKing Camelback 4-6-0

Tender Parts

Name and NumberPart #

Name and NumberPart #

1.)Shell ( J.C.L. )( # 632 )GA-1200037

1.)Shell ( Reading )( # 650 )GA-1200038

2.)Handrail ( 39.0mm long )GA-1200039

3.)Backup light housing (#631)GA-1200040

3.)Backup light housing (#650)GA-1200041

4.)Lens FA-0000004

5.)ScrewIA-0000003

6.)ScrewIA-0000050

7.)Proto-sound chip N/A

8.)Proto-sound board ( top )AE-4500001

9.)Proto-sound board (bottom) AD-4500001

10.)ClipIE-0000006
( proto-sound board )( top )( plastic )

11.)ClipIE-0000007
( proto-sound board )( bottom)( plastic )

12.)Heat sink AI-0000017

13.)ScrewIA-0000021

14.)Insulator washerID-0000025

15.)InsulatorID-0000024

16.)BracketIH-0000072

17.)ScrewIA-0000121

18.)Bracket ( battery )IH-0000042

19.)SpeakerBF-4500013
( Unison, U4508BSR, 8

Horn Only Parts

Ω, 0.9W )

20.)Battery leadsBC-0000003

21.)BatteryBG-4000001

22.)Bracket ( speaker )IH-0000078

23.)ScrewIA-0000072

24.)NutIC-0000007

25.)WasherID-0000034

26.)Bracket ( volume pot )IH-0000023

27.)Volume potBI-0000031

28.)ChassisGB-1200023

29.)T-barIG-0000001

30.)Proto-couplerDD-0000004

31.)SpringIE-0000022

32.)WasherID-0000026

33.)E-clipIF-0000002

34.)ScrewIA-0000039

35.)Truck ( trailing )( tender )DA-1240025
( 2 axle )( screw holes not tapped out )

36.)Truck ( lead )( tender )DA-1230016
( 2 axle )( screw holes tapped out for draw bar )

37.)Draw bar ( tender )GA-1200042

38.)Wire harness ( tender )BC-0000021

8.)Board ( whistle )AF-4500005

9.)Board ( DCRU )AC-0000001

16.)Bracket ( DCRU )( plastic )IH-0000039

17.)ScrewIA-0000122

31.)Spring ( coupler )IE-0000031

38.)Wire harness ( no plugs )BC-0000022

N/S)Switch ( small )BB-0000009
N/S)Screw ( for switch )IA-0000058
N/S)Coupler DD-0000009
N/S)Coupler armatureDD-0000010

38

RailKing Camelback 4-6-0

39

RailKing Camelback 4-6-0

SERVICE & WARRANTY INFORMATION

HOW TO GET SERVICE UNDER THE TERMS OF THE
LIMITED ONE YEAR WARRANTY

For warranty repair, do not return your product to the place of purchase. Instead, follow the
instructions below to obtain warranty service as our dealer network is not prepared to service the
product under the terms of this warranty.

1. First, write, call or FAX MTH Electric Trains, 7020 Columbia Gateway Drive, Columbia, MD
21046, 410-381-2580 (FAX No. 410-381-6122), stating when it was purchased and what seems to be

the problem. You will be given a return authorization number to assure that your merchandise will be
properly handled upon its receipt.

2. CAUTION: Make sure the product is packed in its original factory packaging including its foam and
plastic wrapping material so as to prevent damage to the merchandise. The shipment must be prepaid

and we recommend that it be insured. A cover letter, including your name, sales reciept, address,

daytime phone number, Return Authorization number and a full description of the problem, must be
included to facilitate the repairs. Please include the description regardless of whether you discussed
the problem with one of our service technicians when contacting MTH for your Return Authorization
number.

3. Please make sure you have followed the instructions carefully before returning any merchandise for
service.

LIMITED ONE YEAR WARRANTY

This item is warranted for one year from the date of purchase against defects in material or
workmanship. We will repair or replace (at our option) the defective part without charge for parts or

labor, if the item is returned to the address below within one year of the original date of purchase. This
warranty does not cover wear items such as traction tires or light bulbs. This warranty does not cover
items that have been abused or damaged by careless handling. Transportation costs incurred by the
customer are not covered under this warranty.

This warranty gives you specific legal rights and you may have other rights which vary from state to
state.

ProtoSound®s® is a trademark of MTH Electric Trains. DCRU® is a registered copyright of QS
Industries, Inc.

Lionel® is a registered trademark of Lionel L.L.C.. Railsounds® is a registered trademark of Lionel
L.L.C.