Lionel GP-20 User manual

Lionel GP-20
Diesel Locomotive
Owner’s Manual
Lionel GP-20
Diesel Locomotive
Owner’s Manual
71-8471-250
9/05

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You purchased a tough, durable locomotive—the GP-20 diesel locomotive built by Lionel. From the crisp detail and expert decoration on the outside to the brute power under the hood,
the Lionel GP-20 is ready for duty on your model railroad.
Congratulations!
Features of this locomotive
• Transformer controlled forward, neutral, and reverse operation
• Operating diesel horn
• Operating headlights
• Interior lighting
• Two operating couplers
• Two powerful maintenance-free motors
The following Lionel marks may be used throughout this instruction manual and are protected under
law. All rights reserved.
Lionel®, TrainMaster®, Odyssey®, RailSounds®, CrewTalk™, TowerCom™, DynaChuff™,
StationSounds™, Pullmor®, ElectroCoupler™, Magne-Traction®, CAB-1®Remote Controller,
PowerMaster®, Lionel ZW®, ZW®, PowerHouse®, TMCC®, Lionelville™, Lockon®, Wireless Tether™,
LionMaster®, FatBoy™, American Flyer®, TrainSounds™
The name FasTrack®is used with permission from Pitsco, Inc.

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Table of contents
Transformer operations
Running your locomotive with a Lionel transformer 4
Locking your locomotive into a single operational state 5
Sounding your locomotive’s horn 6
Using your locomotive’s magnetic couplers 7
Maintaining and servicing your locomotive
Lubricating your locomotive 8
Replacing your locomotive’s lamps 9
Replacing the traction tires 10
Notes 11
Limited Warranty/Lionel Service 12

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3Move ‘em out!
Get your locomotive moving. Press the DIRECTION button on your Lionel
transformer. This sequences the reverse unit to the next operating state in the
repeating sequence: forward, neutral, reverse, and neutral.
Adjust track voltage until your locomotive moves at your desired speed. To
increase speed, increase track voltage. To decrease speed, reduce voltage. To stop the
locomotive, turn-off track power.
See page 5 for information on locking your locomotive into a single
operational state.
Place your locomotive on Lionel or Lionel-compatible
O gauge track.
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2Power up your locomotive with your transformer.
Your locomotive is designed to operate on 8-18 volts alternating
current. Virtually all Lionel and Lionel-compatible alternating-current
transformers are suitable.
Do not power your locomotive with direct current (DC). Damage to
sensitive electronic components may occur.
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1
Running your locomotive with a Lionel transformer
Transformer operations
Caution!

ON
DIR
OFF
To select a single operational state for your Lionel locomotive (for example, forward only), you can deactivate the reverse unit’s sequencing function with the reverse unit switch.
Get your locomotive moving in the desired direction, then slow it down without stopping.
Set the reverse unit switch to OFF. Refer to Figure 1 for the location of the switch. The
locomotive is now “locked” into your chosen direction.
When you no longer want single-direction operation, just slide the switch back to ON.
Your locomotive’s reverse unit will “reset” to forward after any power interruption
lasting five seconds or longer, regardless of the original locked-out direction.
Locking your locomotive into a single operational state
Transformer operations
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Note!
Figure 1. Switch location
Front of engine
Rear of engine