MTHTrains BIG BOY Manuel utilisateur

MTH BIG BOY

ARTICULATED STEAM ENGINE

OPERATING INSTRUCTIONS

Thank you for purchasing the MTH die-cast Big Boy steam locomotive.

The engine’s die-cast body and tender are built to ¼ inch scale proportions

from the original Union Pacific prototype and is designed for operation on

any O-72 or larger O Gauge layout. The engine is compatible with most

standard AC transformers, (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 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.

MTH Big Boy Operating Manual

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 22

Programming For FYS 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

SERVICE AND WARRANTY INFORMATION 35

HOW TO GET SERVICE 35

LIMITED ONE YEAR WARRANTY 35

MTH Big Boy Operating Manual

QUICK START - BASIC OPERATION

The MTH Big Boy contains state-of-the art electronics with several

built-in automatic features for incredibly realistic operation. Despite these

advanced features, the Big Boy 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 leading truck to

theOFFposition. (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 Big Boy 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 6. 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.

Use first hole for O-72 operation.

Use 2nd hole for display and 96 inch

or larger diameter curves.

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

MTH Big Boy Operating Manual

PROTOSMOKE™ UNIT OPERATION

The Big Boy 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.

3below.

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.

Figure 3: Smoke Unit Switch

Figure 4: Inspecting The Smoke Unit

MTH Big Boy Operating Manual

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 Big Boy 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.

PROTOSOUND® DCRU® REVERSE UNIT

As mentioned in the Basic Operating section, the engine is controlled by a

ProtoSound® 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

compressor sounds begin. In order for ProtoSounds® to properly initiate

MTH Big Boy Operating Manual

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 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 Big Boy 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 Big Boy 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

MTH Big Boy Operating Manual

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 Big Boy 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. 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

MTH Big Boy Operating Manual

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

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

Lubricate

Coupler

Knuckle

Figure 5: Lubricating The ProtoCouplers

Throttle Down From

High Voltage To Low Listen For The

Squeaking Brake Sounds

MTH Big Boy Operating Manual

found 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 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, 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.

MTH Big Boy Operating Manual

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.

Option 1: 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

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