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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.
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Related Manuals for MTHTrains BIG BOY
Summary of Contents for MTHTrains BIG BOY
- Page 1 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.
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Page 2: Table Of Contents
OIL & LUBRICATION INSTRUCTIONS TRACTION TIRE REPLACEMENT INSTRUCTIONS LIGHT BULB REMOVAL & REPLACEMENT TROUBLE SHOOTING PROTOSOUND® PROBLEMS ProtoSound® RESET Feature Chart Transformer Wiring Chart SERVICE AND WARRANTY INFORMATION HOW TO GET SERVICE LIMITED ONE YEAR WARRANTY MTH Big Boy Operating Manual... -
Page 3: Quick Start - Basic Operation(All 3-Rail Models)
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. -
Page 4: Protosmoke™ Unit Operation
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. -
Page 5: Protosounds® Operating 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: ∗ 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... -
Page 6: Whistle Operation
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. -
Page 7: Protocoupler™ Operation
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... -
Page 8: Enhanced Neutral Steam Sounds
Throttle Down From second setting requires that a bell Squeaking Brake Sounds High Voltage To Low button be used to “arm” the brake feature and is explained in more detail in the “Activating Freight Yard Sounds” section MTH Big Boy Operating Manual... -
Page 9: Tips On Using The Squeaking Brake Sounds
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... -
Page 10: Freight Yard Sounds (Fys)
Reverse). You will hear the bell chiming turn on and if you listen Listen For The Press & Hold Whistle Blast Sound carefully, you should The Railsounds® Bell Button After 3 Seconds For 3 Seconds MTH Big Boy Operating Manual... - Page 11 Neutral position. You cannot interrupt the throttle to enter another direction state and still have the Feature remain active.) Once your engine begins running, you can trigger the sounds to begin playing whenever you enter Neutral. MTH Big Boy Operating Manual...
- Page 12 FYS and shutdown ProtoSounds®. The Put Engine In Neutral At Low Power next time you turn power back on your engine will be in the RESET position. See page 6 for more information on RESET. MTH Big Boy Operating Manual...
- Page 13 This is followed approximately two seconds later by a man whistling and continued Listen For 2 Air Release Sounds freight yard loading and unloading sounds. MTH Big Boy Operating Manual...
- Page 14 Otherwise the engine will just sit still until you increase the transformer throttle setting on the transformer. However, don’t set the throttle setting too high or the engine will go racing away faster than you might expect. MTH Big Boy Operating Manual...
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Page 15: Tips On Using Fys Features
In Event 5, you cannot interrupt FYS until after the engine begins to move. Interrupting the throttle before the engine begins to move has no affect on the locomotive’s operation. MTH Big Boy Operating Manual... -
Page 16: Self-Recharging Battery Backup System
OFF position to prevent harm to the smoke unit wicking). 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 MTH Big Boy Operating Manual... -
Page 17: Protosound® Volume Adjustment
For information on operating the RESET volume adjustment option, see the section entitled “Programming ProtoSound RESET Options” on the following pages. ProtoSound Volume Adjustment Knob Figure 6: Adjusting The ProtoSound® Volume MTH Big Boy Operating Manual... -
Page 18: Using "Reset" To Program Protosounds
= 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 MTH Big Boy Operating Manual... -
Page 19: Setting The Engine Volume
In fact because only the engine volume is affected by selections in Feature 6, when you select 0 volume, you can still hear the horn, bell and neutral sounds when the engine is running or in neutral. MTH Big Boy Operating Manual... -
Page 20: Programming For A Separate Bell Button Controller
(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. MTH Big Boy Operating Manual... -
Page 21: Programming For Whistle In Neutral Operation
Interrupt The Throttle Listen For 5 Clank To “Lock-In” transformer whistle button. And 0 Clink Sounds The Whistle Setting To reset ProtoSounds® to its original factory setting of no MTH Big Boy Operating Manual... -
Page 22: Programming For Protocoupler Operation
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. MTH Big Boy Operating Manual... -
Page 23: Programming For Fys Operation
Interrupt The Throttle failed. To activate the Listen For 8 Clank To “Lock-In” And 0 Clink Sounds The Lock-Out Setting Remote Lockout Control setting, go to RESET feature 40 (See the section MTH Big Boy Operating Manual... -
Page 24: Resettingall Protosound® Options To Factory Default
The RESET Setting 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 throttle to lock-in the setting. MTH Big Boy Operating Manual... -
Page 25: Reverse Unit Lock-Out Operation
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 MTH Big Boy Operating Manual... - Page 26 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. MTH Big Boy Operating Manual...
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Page 27: Oil & Lubrication Instructions
One gearbox is located behind the motor and the second is positioned at the end of universal drive train. Grease can then be applied into the gearbox using a grease tube dispenser. Figure 9: Lubricate The Tender Chassis Trucks MTH Big Boy Operating Manual... -
Page 28: Traction Tire Replacement Instructions
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 MTH Big Boy Operating Manual... -
Page 29: Light Bulb Removal & Replacement
“tongue.” Once the screws are removed, the pilot deck can be lifted from the chassis, and the bulb and harness can be disconnected and replaced. Replacement bulbs are available directly from MTH Electric Trains. MTH Big Boy Operating Manual... -
Page 30: Trouble Shooting Protosound® Problems
The bell won’t work with a separate bell button. 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. MTH Big Boy Operating Manual... - Page 31 BATTERY PROBLEMS REMEDY I get no sounds when the engine shifts between the The battery may be dead or needs charging. See the direction states. Battery Backup section for more information. MTH Big Boy Operating Manual...
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Page 33: Protosound Reset Feature Chart
Whistle In Neutral OFF 5 Clanks/0 Clinks Chuff Rate Full Chuff Range 5 Clanks/2 Clinks FYS Enabled FYS ON 5 Clanks/3 Clinks Lockout Enabled Lockout OFF 8 Clanks/0 Clinks Squeaking Brakes Brakes Always ON 9 Clanks/0 Clinks MTH Big Boy Operating Manual... -
Page 34: Transformer Wiring Chart
Red Terminal Black Terminal 0-18v 50V.A. Electronic Lionel RW 9-19v 110-Watt Standard Lionel SW Unknown 130-Watt Standard Lionel TW 8-18v 175-Watt Standard Lionel ZW A or D 8-20v 275-Watt Standard MT#Z4000 Black 5-22v 390-Watt Electronic MTH Big Boy Operating Manual... - Page 35 O-72 OPERATION While the Big Boy engine is more than capable of operating on O-72 curves and switches, you may find that certain light freight cars are prone to derailing when being pulled or pushed by the Big Boy through O-72 switches.
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Page 36: Service And Warranty Information
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.
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Do you have a question about the BIG BOY and is the answer not in the manual?
Questions and answers
I can t get the big boy to move no matter what I do it just I Sits there with sound on and lights
The MTH Trains Big Boy may not move despite having sound and lights because the brake feature might be activated while the engine is in neutral. To move the engine, deactivate the brake feature by following the correct sequence: enter neutral after reverse, activate the brake feature, then proceed to forward. If this is not done correctly, the engine will stay in neutral and not move.
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