Athearn 4-6-6-4 Challenger Locomotive User manual

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Challenger History
Challenger…The Model
Model Features
Sound and DCC Features
Operating the Challenger
Lubrication and Maintenance
Challenger Tender Diagrams
Challenger Locomotive Diagrams
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Page…4
Page…5
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Page…10
Page…12
Page…14
The Challenger 4-6-6-4 simple articulated locomotive was born into an era of contradictions. The
railroad industry was suffering through the massive
economic downturns of the early 1930s, with most
railroads barely remaining solvent. Yet, a movement
arose that resulted in the development of the pinnacle
of steam locomotive design.
New locomotive orders with the major erection
shops of Alco, Baldwin and Lima were almost non
- existent in the years between 1930 and 1933. Most
railroads opted to rebuild and refurbish existing
equipment in their own shops. In addition, motive
power rendered obsolete or surplus by the downturn
in traffic found its way to the scrap line. In an effort
to capture what little business existed, experimentation reached a fever pitch. These efforts manifested
themselves in the introduction of streamlining, the
development of diesel-powered, dedicated consist
passenger trains and super-power steam locomotives. Super-power steam was the evolution in steam
locomotion brought about by a marriage of high
tractive effort with high-speed performance. Previously, railroads had either greyhound swift locomotives with limited pulling power or massive, complex
locomotives capable of high tractive effort at speeds
of around 20 miles per hour. By combining the latest technology with improved understanding of the
dynamics of steam power, new classes of locomotives
reached the rails. These machines featured large fireboxes supported by either four or six wheel trailing
trucks, massive boiler girths that pressed clearance
limits, higher boiler operating pressures and the latest
in appliances that improved the roadworthiness and
thermal efficiencies of the power plant.
The Union Pacific Railroad had a unique operational dilemma: The majority of its traffic was moved
over long distances between the West Coast and the
Midwest through daunting terrain. Almost at the
midpoint of the system is Cheyenne, Wyoming and
the Sherman Hill grade. Geographically, Cheyenne
is located at the juncture between the plains of the
Midwest and the foothills of the Rocky Mountain
ranges. While not as dramatic as the Allegheny or
Sierra grades, the line west of Cheyenne had long
runs of 1.2% or better grades. The Union Pacific
sought to operate long high-speed service through
this challenging geography. For this reason, their best
and most modern motive power was allocated to this
division. Beginning with double-headed 2-8-0 Consolidations in the early twentieth century, heavier and
more powerful locomotives were used, culminating
with the signature Union Pacific three-cylinder 4-122. While they provided stellar service on the Sherman Hill route, these twelve-coupled locomotives
had reached the maximum size for a rigid wheelbase
locomotive and required the Union Pacific to look
for additional horsepower to increase over-the-road
speed.
Arthur M. Fetters, general mechanical engineer
for the UP, suggested redesigning the successful
wheel arrangement of the 4-12-2 as a simple articulated. By splitting the wheelbase between two smaller
frames, an advantage would be gained by the ability
to add larger drivers to a shorter rigid wheelbase.
This resulted in more speed with the added benefit
of lighter side rods. These lighter side rods would
minimize track damage at higher speeds since the
entire mechanism would be easier to balance dynamically. The final complement to this concept would be
the ability to add a larger firebox supported by a four
wheel trailing truck, further enhancing steaming capabilities. Mr. Fetters and the designers from American
Locomotive Company (Alco) finalized the design of
what was to become one of the most widely recogChallenger Locomotive Weights and Dimensions
Tractive force
97,350 Lbs.
Cylinders, diameter and stroke (4)
21 in. x 32 in.
Drivers, diameter
69 in.
Total weight of engine
634.500 Lbs.
Weight of tender (2/3 loaded)
348,000 Lbs
Boiler diameter, first ring inside
94-11/16 in.
Length over tube sheets
20 ft. 0 in.
Driving wheel base, each
12 ft. 0 in.
Total engine wheel base
60 ft. 4 in.
Fuel
Soft coal/Oil
Grate area
132.2 sq. ft.
Steam pressure
280 Lbs.
Evaporative heating surface, firebox total
554 sq. ft.
Evaporative heating surface, tubes and flues
4,038 sq. ft.
Superheating surface, type A
1,741 sq. ft.
Tender Capacity, centipede
25,000 gal., 28 tons
nized locomotives in the world. In 1936, the first group
of locomotives with the 4-6-6-4 wheel arrangement
was delivered to the Union Pacific Railroad. They
were an immediate success and their roster grew to
number 105 locomotives on the Union Pacific alone.
This new wheel arrangement was given the name
“CHALLENGER”. While the origin of the name is
unclear, it proved to be an apt moniker.
The Challenger type of locomotive would serve
until the end of mainline steam service. They were
assigned to railroads across the nation and under all
operating conditions gave a good accounting of themselves. Two examples escaped dismantling. UP 3985
has been restored and joins UP 4-8-4 844 as the only
two steam locomotives operated by a class 1 railroad
today. The other, UP 3977, has been on display in
North Platte, Nebraska since 1968 and has recently
been refurbished by a group of dedicated railfan volunteers.
In 1936, the Union Pacific Railroad and Alco met
the needs of increased speeds and tractive effort with
the design of the Challenger. Today, the Athearn N-Scale
4-6-6-4 Challenger meets the needs of modelers and
collectors by providing an N scale model that captures
all nuances of the prototype, taking model steam realism to the next level.
UNION PACIFIC
Union Pacific received its fourth order of Challengers
in 1943, and its fifth order in 1944. These were improved
from the earlier design based upon experience gained
from the Big Boy 4-8-8-4 locomotive received in
1941. These locomotives featured double smoke stacks,
centipede tenders and many parts common to the Big
Boys. In 1952 engines from both orders were converted
to burn oil and were renumbered in the 3700 series. They
were commonly assigned to both passenger and freight
movements on the system. Two examples survived the
replacement of steam by diesels, with 3985 receiving a
restoration by volunteer UP employees following years
on display adjacent to the Cheyenne depot. The 3985
returned to special service during the early 1980s, with
an oil conversion for the tender occurring in 1990.
j
­ In 1943, to meet the demands of increased war-time
traffic, Rio Grande requested more Baldwin 4-6-6-4s
similar to those previously received from this builder.
Instead, the War Production Board diverted six Alco
locomotives from an order then in production for the
Union Pacific. These locomotives were in turn leased
from the Defense Plant Corporation by the D&RGW.
Classified as L-97 locomotives, and assigned numbers
3800 through 3805, these engines spent the duration of
World War II lifting heavy ferrying freight trains over
the Rocky Mountains. When the war ended in 1945
and rail traffic levels returned to normal, the half-dozen
L-97s were deemed surplus and, in 1946, returned to the
War Assets Administration. The following year, these
workhorses were sold to the Clinchfield Railroad.
Road Specific Features:
11801 CHALLENGER UNDECORATED UP/RIO GRANDE VERSION
11803 CHALLENGER DENVER & RIO GRANDE WESTERN #3802
11809 CHALLENGER DENVER & RIO GRANDE WESTERN #3804
CLINCHFIELD
The Carolina, Clinchfield & Ohio was a latecomer
to the railroad scene. Completed in 1909, it was built
for the purpose of hauling Kentucky and West Virginia
coal. As a coal hauler it would at first appear that the
high stepping 4-6-6-4s would be out of place in this
environment. However, in 1942, the Clinchfield received
an order of eight Alco Challengers to handle increased
wartime traffic. This first order proved very successful
so, in 1947 when six more locomotives became available
through the War Assets Administration, Clinchfield
acquired them. Originally assigned to the Rio Grande,
these engines were numbered 670-675. They are unique
in that, shortly after delivery, their double smoke stacks
were replaced by large single stacks .
Road Specific Features:
Road Specific Features:
11802
11805
11806 11808
11810
11811
11812
11813
11800
11804
11807
CHALLENGER UP #3985 (FAN TRIP VERSION)
CHALLENGER UP #3943 COAL & SMOKE DEFLECTORS
CHALLENGER UP #3977 TWO TONE GRAY W/OIL TENDER
CHALLENGER UNDECORATED UNION PACIFIC LATE
CHALLENGER UP #3964 ALL BLACK, COAL
CHALLENGER UP #3975 TWO TONE GRAY W/OIL TENDER
CHALLENGER UP #3958 ALL BLACK, COAL
CHALLENGER UP #3983 TWO TONE GRAY W/OIL TENDER
CHALLENGER UNDECORATED CLINCHFIELD VERSION
CHALLENGER CLINCHFIELD #670 WITH SINGLE STACK
CHALLENGER CLINCHFIELD #672 WITH SINGLE STACK
Model Features
The Athearn N-Scale 4-6-6-4 Challenger is the culmination of the art of design and tooling integrating the
latest innovations in electronic technology. The Challenger model has been developed from its inception as
the finest three dimensional operating miniature representation of the prototype available.
Enclosed in the premium quality box are the following
items:
1. History and Instruction Book that includes a warranty
and instruction card
2. N scale 4-6-6-4 Challenger Locomotive
3. N scale tender with full electronics package installed
4. Hand Held Wireless DC Controller
Upon inspecting the locomotive and tender note the
many details that have been incorporated in its construction.
Locomotive and tender features
• Boiler backhead with full details
• Individually applied detail parts such as piping,
valves, generators, etc.
• Blackened metal wheels.
• Eccentric cranks operating on both sides in correct
direction.
• Minimal compromise on wheel diameter (about 1”
only).
• Front and rear engines (cylinders and coupled drive
wheel sets) both pivot in order to manage 11” radius
curves. Although the locomotive runs on 11" (279.4
mm) radius curves, we strongly recommend to operate your Challenger on at least 15" (381 mm) radius
track.
• Pilot has open/closed positions. Coupler pocket can be
inserted to mount coupler.
• Headlights and tender lights have directional light
change.
• Five-pole, skewed armature motor with two flywheels with very smooth-running features.
• Each undecorated version includes all parts for that
specific version.
• 5­­-pin connector plug between loco and tender.
• Current pick-up on all 12 driver wheels and 8 tender
wheels.
• Drawings for spare part replacement are shown on
pages, 12, 13 and 15. Disassembly of this locomotive
is not very easy and great care should be taken if you
attempt this.
• Detailed instruction sheets with exploded view drawings and history booklet.
Prototype Specific Features
• Single or twin smoke stacks.
• Coal load or oil bunkers.
• Wood tender deck.
• Smoke deflectors.
• Closed or open cab.
Sound and DCC Features
The installation of sound in a locomotive adds a new dimension to operation. Sound makes a technically perfect static
model come alive and enhances the experience of operation.
You will find that you will no longer ‘run’ the engine but,
rather, operate it in the context of your layout. Whether you
are using conventional DC control or a DCC system, the
incorporation of advanced electronic technology will provide
the ultimate railroading experience.
The Athearn N-Scale Challenger Locomotive includes a factory installed DCC and sound board with speakers. The board
is mounted in the tender. The DCC decoder automatically
senses the power supply type (either DC or NMRA compliant DCC system) that is being used and will operate without
intervention from the user.
Hand-Held Wireless Controller
DCC Features:
LED Indicator
Whistle
Bell
Stop
Decelerate
Accelerate
Direction
Included with the Challenger locomotive is a hand-held wireless controller. When operating on conventional DC, this control unit is designed specifically to allow control of the speed
and direction of the locomotive as well as these six individual
sound functions:
• Bell
• Water Injector
• Blower Hiss
• Directional Lighting
• Whistle
• Coupling
• Conductor’s Voice
• Sound On/Off
• Water Injector
• Cylinder Cock/Flange squeal
• Bell
• Air Release
• Brake Squeal
• Fire Box Door
• Sand Release
• Blower Hiss
In addition to Function Ø (Directional lighting) there are 28
additional sound functions to allow the operator to capture
the full range of unique sounds found on an operating steam
locomotive. You can now fully immerse yourself in the complexities of prototype operation and add a new level of realism to your railroading experience.
• Whistle
• Air Release
• Fire Box Door
These are more sound features than have been previously
available to the conventional DC sound user in any format.
The Athearn N-Scale Challenger Locomotive will operate
on DC without the use of this hand held, however, only the
steam chuff sounds will be available in this operational mode.
The decoder provided with the Athearn N-Scale Challenger
Locomotive will operate with any NMRA compatible DCC
system. The default setting is address 3. The decoder is rated
at 1.5 amps and will support either 2 or 4 digit addresses. The
decoder functions are fully programmable by the adjustment
of CVs. A CV table is included in the operating instructions.
Either 14 speed steps or 28/128 speed steps are supported by
this system. Available accessory and sound functions are as
follows:
Dual-Function decoder is made by Model Rectifier Corporation for Athearn, Inc.
The 12-volt transmitter battery # A23-12, is available at any
electronics or office supply store.
Caution: This locomotive is a very delicate model. Please be
careful when handling it and placing it on the track.
Your new Athearn N-Scale Challenger Locomotive
comes factory equipped with a state-of-the-art Dual
Function decoder. This means your locomotive will run
on any NMRA compatible DCC system or on any regular DC Train Control (HO power pack).
ATTENTION D.C. POWERPACK USERS
To avoid damaging the decoder in this locomotive, we recommend that once bringing the locomotive to it’s idle setting, [approx. 50% throttle], wait at least 3 seconds before
running the loco at it’s maximum recommended voltage
level. Older power packs can exhibit a “no-load” voltage
spike for a few seconds which can damage the circuitry in
the decoder.
Caution: Do not run your new Athearn N-Scale Challenger
Locomotive on any G scale or high power HO power pack.
You may damage the locomotive circuitry.
When running on a DC power pack, this locomotive features a wireless radio control. This makes accessing the
sound functions and running the locomotive more convenient when following your train around the layout.
The transmitter (battery not included) that comes with
your locomotive has the following functions:
1. Button 1 will start or stop the bell sounds.
2. Button 2 will operate the steam whistle.
3. Button STP will bring the locomotive to a gradual
stop. This is a built in safety feature. Press Button STP
while the locomotive is stopped and you will hear the
water injector sound.
4. Button 4 will accelerate the locomotive. When the
locomotive has reached its maximum speed, pressing
Button 4 will activate the sound of the fire box door
opening and closing.
5. Button 3 will decelerate the locomotive. Press Button
3 when the locomotive is stopped and you will hear an
air release sound.
6. Button 5 (pressed while the locomotive is moving) will
slow the locomotive down, change its direction and
speed it up. This is also a built in safety feature. Press
Button 5 when the locomotive is in idle (25%—35%
throttle setting) to activate the blower hiss sound.
Note: There are two idle settings that enable various
sounds to be controlled while the engine is standing
still. To activate "Idle #1" set the power pack's throttle
setting at the 25%—35% position, being sure to keep the
transmitter's speed regulator setting off. In "Idle #1"
the following sounds can be activated: bell, whistle,
water injector, air release, blower hiss and fire box
door. To access the "Idle #2" setting, set the power
pack's throttle to 100% (again, keeping the transmitter's speed regulator off). While in "Idle #2" the same
sounds can be activated with the transmitter, with the
exception of the fire box door.
DC Operation-Analog Mode
To set up your Hand Held Controller and operate you
locomotive with a DC power pack, follow these easy
directions:
1. Install the battery in the transmitter.
2. Connect the wires from your DC power pack's "variable track terminals" to your track.
3. Place the locomotive on the track making sure all
wheels are aligned correctly to avoid short circuits,
which can possibly damage your locomotive circuitry
and power pack.
4. Turn the switch on the power pack to ON.
5. Slowly adjust the throttle until you hear the locomotive begin to idle. Only during idle can you use the
direction switch on the power pack to change the
locomotive’s direction. Either the headlight or back-up
light will illuminate to indicate the locomotive’s direction. Once the locomotive begins moving, you cannot
use the direction switch on the power pack to change
direction. You can only use transmitter to change the
locomotive direction while it is moving. This feature
allows you to control another analog locomotive on
the same track.
6. Your new Athearn N-Scale Challenger Locomotive
will always remember its last direction of operation
regardless of the position of the direction switch on the
power pack.
7. When you use the power pack's throttle to control the
locomotive’s speed, the top speed will be limited by
the transmitter’s speed setting.
8. When you use the transmitter to control the locomotive’s speed, the top speed will be limited by the power
pack's throttle setting.
9. If the locomotive's top speed is too low, do not set the
power pack's throttle to maximum. We recommend
you set the throttle to 60%-70% and use the transmitter
to control the locomotive speed. This will give you the
best operation range.
10. Never exceed 18 volts D.C. to the track in analog
operation. Excessive track voltage may damage the
locomotive’s circuitry. Never try to operate the locomotive on A.C. power.
11. If the transmitter’s range begins to decrease, the battery needs to be replaced.
12. We recommend you always use the power pack's
throttle to control the locomotive speed. Not only will
you get a smoother speed control, but the battery life
will be extended.
13. Whenever you feel that the locomotive is not operating properly you should move the throttle to zero or
25%-35% throttle setting (depending on your power
pack) and slowly move the throttle up again to control
the locomotive.
Programming in Analog Mode
While in analog mode, you can program the chuff rate
and the sound volume.
1. Place the locomotive on track.
2. Turn the power switch on the power pack to ON.
3. Slowly turn throttle until sounds come on.
4. Leaving the throttle where it is, shut off the power
switch on the power pack.
5. Hold down the STP button while turning the power
switch back on. Locomotive will say “Program.” You
are now in the analog programming mode.
6. Press Button 4 or Button 3 to speed up or reduce
the chuff rate, respectively. Each press of the button
adjusts the chuff rate up or down by one unit. Each
time you will hear the locomotive say “program.”
7. Press Button 5 to toggle between volume settings. You
will hear the locomotive say “program” with the new
volume settings.
8. To reset the locomotive back to its factory defaults:
Press the STP button five (5) times. Wait at least
2 seconds between presses. After each press the
locomotive will say “program.” After the 5th press,
you will hear “program” followed by steam hiss.
This confirms that the reset process is completed.
9. Once finished programming, turn the power switch on
the power pack to OFF. This will reset the locomotive
and lock in your programming. To resume operation,
follow the steps under “DC Operation”.
TIPS for Analog Operation
1. Turn up the throttle until sounds start and locomotive
idles.
2. Select the locomotive’s direction either by the direction
switch on the power pack or by the transmitter.
3. Slowly start your locomotive moving by using the power
pack’s throttle to set desired top voltage setting.
4. Once underway, use the transmitter Button 4 to speed
up or Button 3 to slow down. Hold down the button
until you reach the desired speed.
5. If the top voltage setting at maximum speed is too low,
use the power packs throttle to adjust the top voltage
setting.
6. To conserve battery, use the throttle to control
locomotive speed and use the transmitter to activate
sounds.
7. The locomotive can be operated with either the power
pack’s throttle or with the radio transmitter (included
with your model) -- or both. If, while operating with
the transmitter, you wish to resume running with the
power pack while the locomotive is moving, flip the
direction switch on the power pack once (this will reacquire the locomotive to the power pack’s throttle).
To resume running with the transmitter, just start using
the transmitter’s speed, stop, or direction buttons.
8. When finished running your locomotive, turn your
power pack throttle to OFF and turn off the power
pack’s power switch. Any programming changes made
in DC analog mode will affect any prior DCC mode
settings.
Program the locomotive the same way you would program any other NMRA compatible decoder with your
DCC system.
DCC Operation- Digital Mode
Additional Information
Your new Athearn N-Scale Challenger Locomotive
will operate on any NMRA compatible DCC system. The
dual-function decoder has the following features:
The dual-function decoder installed in this locomotive should perform well when used with any NMRA
compatible DCC system. See your DCC manual on how
to program and operate the decoder. For more information about Register/CV’s and their functions, please refer
to the NMRA DCC standards and recommended practices, RP-9.2.2. This is available directly from NMRA or
on their website at www.nmra.org.
• Synchronized steam chuff with random sounds
• 1.5 amp capacity
• Programmable for either 2 digit, (1-127) or 4 digit, (19,999) addresses
• Programmable start voltage
• Programmable acceleration rate
• Programmable deceleration rate
• Programmable top voltage
• Programmable chuff rate
• Programmable volume
• Programmable 14-28/128 speed steps
• Directional lighting (FØ)
• 28 accessory sound functions, (F1-F28)
• Advanced consisting (CV19)
• OPS mode programming
• Compatible with NMRA DCC. standard
• Complies with Part 15 of F.C.C.Rules
Note: Due to the higher track voltages associated with
DCC systems made for HO and larger scales (16 volts vs.
12 volts for N-scale), the best slow speed performance
for any decoder equipped N scale loco can be achieved
by either using a lower voltage input power supply or by
purchasing an Model Rectifier Corporation "Universal
Voltage Reducer" (part # AT880). This product lowers
the track voltage by approximately 4 volts, and will give
you full throttle control without exceeding the models 12
volt voltage limit.
FCC Compliance
Operation
The Athearn N-Scale Challenger Locomotive can be
operated with the steam sounds on or off. Double clicking
your headlight button (FØ) will turn the steam sounds on
or off. When the steam sounds are turned off, all associated sounds are also turned off.
Programming for DCC Operation - Digital Mode
This decoder supports all program methods including register mode, paged mode, CV programming, direct
mode and programming on the main (OPS mode programming).
This device complies with Part 15 of FCC rules.
Operation is subject to the following two conditions;
1) This device may not cause harmful interference, and
2) This device must accept any interference received,
including interference that may cause undesirable operation.
Battery Type
# A23 12 volt
Lubrication and Maintenance of the Athearn N-Scale
4-6-6-4 Challenger
The Athearn N-Scale Challenger Locomotive has
been carefully engineered to provide years of trouble
free operation. However, as with all things mechanical,
a small amount of care and maintenance is required to
insure the flawless operation of this fine model. These
simple procedures will provide the necessary information
to give you years of trouble-free enjoyment.
Care and Cleaning
Dust and debris are among the leading contributors to
poor operation of any miniature mechanism. To maintain
the quality performance of your locomotive, inspection
and cleaning should be performed on a regular basis. A
soft bristle brush should be used to remove dust from the
superstructure. The use of soaps, solvents or detergents
is not recommended for this purpose as they will have a
tendency to mar the finish.
When not in use it is recommended that the locomotive and tender be stored in the protective sleeve in which
it was packed. Also, store the wireless controller in the
locomotive box with the battery removed.
When inspecting the underframe, make sure that all
lint and dust are removed from the back of all wheel sets.
Dirt build up in this area will foul the pick-up wipers and
not allow proper electrical contact, negatively impacting
performance.
Wheel Cleaning
The Athearn N-Scale Challenger Locomotive receives
electric power from all drivers as well as eight of the
tender wheels from both rails. This, coupled with the
long overall wheelbase, provides for excellent electrical
contact. There should be few cases of erratic performance
due to poor contact. However, over time, dirt from the
rails will accumulate on the wheel surfaces and will need
to be removed to assure peak operation. The use of a cotton swab to apply either alcohol or a good quality track
cleaning solution is recommended. Carefully apply the
solvents, taking care not to spill any on the painted surfaces. Alternatively, either an ink eraser or ‘Bright Boy’
abrasive block can be used to remove dirt deposits by
carefully burnishing the wheel surfaces. When cleaning
the wheels, also remove any dirt build up from the metal surfaces on the back rims of the wheels. This will assure that the
wiper contacts will maintain good contact with the wheels.
Lubrication
This locomotive will arrive pre-lubricated from the
factory and will not need additional lubrication until it
has been run for quite some time. When it comes time
to lubricate the locomotive, use only light weight oil and
gear grease that is plastic compatible. Use a minimum
amount. The plastics used for many of the components,
such as the gears and drive lines, make them inherently
self lubricating. Remember that too much lubrication can
be more detrimental to the locomotive than too little.
The main points of lubrication, and type of lubricant
are as follows:
• Axle bearings on the drivers – light oil
• Armature bearings on the motors – light oil
• Oil light bearings on the worm gear shafts – light oil
• Bearings on the centipede tender wheels – light oil
• Side rods at the crank pins – light oil
• Gear towers – light gear grease
By following the exploded drawings, access to each
of these areas should be easily accomplished. If you are
10
not comfortable with disassembling this locomotive for
lubrication take it to one of the many Model Railroad
hobby shops that can provide this service.
Coupler Installation
The Athearn N-Scale Challenger model comes with the
swivel coupler installed on the pilot. As on the prototype
engines, you can have the coupler exposed on the pilot,
or swing it around so that the pilot has no coupler in use.
The "coupler" on this part is a dummy (non-operating)
coupler.
An operating coupler can be installed on the pilot. Simply unscrew and remove this dummy coupler.
Replacing the Traction Tire
To provide tractive effort that rivals the prototype,
four traction tires are factory installed.
To replace a worn or loose traction tire:
• Remove the crank pin nuts from the traction tire
equipped driver.
• Loosen the remaining crank pin screws from the other
drivers.
• Remove the eccentric crank, main rods, bushing
and drive rod from the crank pin on the traction tire
equipped driver.
• Slide off the traction tire and replace with a new tire.
• Reverse the procedure of disassembly.
Replacement parts are available from Athearn Trains to
the original purchaser for warranty repairs only. A warranty registration form must be on file at Athearn Trains
to honor any parts requests.
STEAM SOUNDS CHART
CV CHART
Function
Idle/Moving
CV
Register
Description
Range
Default
Range
Default
Double click F0
Master Volume Control (4 Steps, same as F12)
CV1
R1
Short address
1-127
3
CV120
---
Chuff rate
0-30
12
F1
Bell on/off
CV2
R2
Start voltage
0-32
0
CV121
---
Chuff start point adjustment
0-7
3
F2
Whistle
CV3
R3
Acceleration
0-32
8
CV122
Double chuff enable
0-1
F3
Air release
CV4
R4
Deceleration
0-32
8
1
(enable)
F4
Coupling
CV5
---
Top voltage
0-32
24
CV123
Load Control on/off (1=on)
0-1
F5
Brake squeal (repeat press will increase length)
---
R6
Page number
---
---
0
(disable)
F6
Conductor
CV29
R5
Basic configuration
---
2
CV124
0-2
0
F7
Fire box door open and close
CV7
R7
Manufacturer version number
---
32
F8
Whistle type select
CV8
R8
Manufacturer ID
---
143
Speed curve select (0=linear,
1=slow increase at slow
speed, 2=fast increase at slow
speed
F9
Steam associated sound
CV17
---
Long address upper byte
192-231
192
F10
Water
CV18
---
Long address lower byte
0-255
3
F11
Blower hiss
CV19
---
Advanced consist address
0-127
0
F12
Master Volume Control (4 steps, off, min, mid, max)
CV21
---
0-1
0
F13
Coal auger
F14
Air hose firing
F15
Air Release
When CV21=0, all accessory
functions will follow its own
address. When CV21=1, all
functions will follow the consist address
F16
Shoveling
Master Volume Control (0=o
ff,1=low,2=mid,3=max)
0-3
2
F17
Safety Air Pump
F18
Sand
F19*
Bell type select
F20*
Bell Ring Rate
F21*
Bell Volume
F22
Whistle Volume Control
F23
Chuff Volume Control
F24
Chuff Type
F25
Air Brake Release
F26
Coupler
F27
Fire box door close
F28
Firebox door open
Note: There are only a few DCC Systems on the market that can
access functions higher than F12
*Note: F1 [Bell] does not have to be activated when using F190, F20
and F21. The Bell will come on automatically. Use F1 to turn off
after using these functions for Bell adjustment.
CV49
CV50
---
Whistle type
0-14
0
CV51
---
Whistle volume
0-3
3
CV52
---
Bell type
0-3
0
CV53
---
Bell volume
0-3
3
CV54
---
Bell ring rate
0-50
10
CV55
---
Chuff type
0-3
0
CV56
---
Chuff volume
0-3
3
CV57
---
Brake squeal volume
0-3
1
CV58
---
Air release volume
0-3
3
CV59
---
Blower hiss volume
0-3
3
CV60
---
Fire box door volume
0-3
3
CV61
---
Injector volume
0-3
3
CV62
---
Coupling volume
0-3
3
CV63
---
Air pump volume
0-3
0
CV105
---
User identification number
0-255
0
CV106
---
User identification number
0-255
0
CV112
---
Conductor volume
0-3
3
Air pump type
0-3
1
CV114
CV118
---
Shoveling volume
0-3
3
CV119
---
Coupling fire volume
0-3
3
11
CV
CV125
Register
---
Description
Factory default setting: Program it to 1 will restore all the
CV to default setting
---
0
COAL TENDER
COAL TENDER with WOOD DECK
125
121
126
122
121
120
127
119
126
122
120
127
119
123
128
123
128
124
129
124
131
130
129
132
131
130
132
134
133
134
133
137
137
135
135
136
138
142
136
144
148
150
140
145
146
141
147
139
144
140
145
146
162
138
142
139
141
147
148
162
151
150
152
152
149
163
149
163
143
153
161
165
143
153
154
164
151
154
161
164
155
165
160
155
160
156
156
157
157
158
158
159
159
12
OIL TENDER
121
167
122
168
120
127
119
Item #
125
166
169
123
128
124
129
131
130
132
134
133
137
135
136
138
142
139
144
140
145
146
141
147
148
162
150
151
152
149
163
143
153
154
161
164
165
155
160
156
157
158
159
13
Description
QTY
Item #
Description
QTY
119 Tender Handrail Top
2
151 Tender Couple Pin
1
120 Tender Handrail Rear Top
2
152 Draw Bar
1
121 Tender Backup Light Base
1
153 Washer
1
122 Tender Backup Light Wire
1
154 Tender Spring
1
123 Tender Manholes
3
155 Tender Trailing Truck
1
124 Tender Toolbox
1
156 Tender Pick Up Plate
2
125 Tender Wood Plank
1
157 Tender Trailing Wheel Assembly
2
126 Coal Load
1
158 Truck Fix Plate
1
127 Tender Cover Rear
1
159 Screw
1
128 Tender Light Rear
1
160 Screw
2
129 Tender Ladder
2
161 Tender Truck
1
130 Tender Screw Sleeve
2
162 Tender Lift Bar
1
131 Screw
2
163 Micro-Train Coupler (1015)
1
132 Tender Body
1
164 Centipede Wheel Assembly
3
133 Tender Cover Front
1
165 Centipede Wheel w/ Bearings Assembly
2
134 Tender Handrail Front Left
1
166 Oil Bunker Handrail
2
135 Tender Front Platform
1
167 Oil Bunker Part #1
1
136 Tender Handrail Front Right
1
168 Oil Bunker Part #2
1
137 Screw
9
169 Oil Bunker
1
138 Tender PC Board
1
170 Tender side handrail
2
139 Speaker
1
171 Tender Body
1
140 Washer
2
141 Speaker Base
1
142 Plug
1
143 Spring A for Draw Bar
1
144 Fix Plate
1
145 Pick Up Plate Left
2
146 Pick Up Plate Right
2
147 Isolator Plate
2
148 Coupler Cover
1
149 Tender Chassis
1
150 Spring A for Draw Bar
1
SUPERSTRUCTURE PARTS LIST
Item # Description
QTY
Item #
1
Cab Handrail Rear
1
44
Piping Outside Firebox #2
1
2
Cab Door & Window Glass Rear
1
45
Cab Support Right
1
3
Cab Window Glass Side Right
1
46
Water Pump
1
4
Closed Cab
1
47
Frame
1
5
Cab Handrail Front
2
48
Piping Outside Firebox #1
1
6
Cab Window Glass Front Right
1
49
Wire Cover
1
7
Cab Window Glass Front Left
1
50
Screw
1
8
Cab Window Glass Side Left
1
51
Trailing Truck Weight
1
9
Boiler Half-Top
1
52
Trailing Truck
1
10
Screw
4
11
Generator (Single)
1
53
54
Trailing Wheel Assembly
Open Cab
1
1
12
Whistle—Triple
1
55
Boiler—Single Stack
1
13
Whistle—Double
1
56
Rectangular Numberboard
1
14
Boiler—Double Stack
1
57
Smoke Deflector Right
1
15
Safety Valve
1
58
Steel Support Right
1
16
Numberboard Right
1
17
Numberboard Left
1
59
60
Steel Support Left
Smoke Deflector Left
1
1
18
Bell Support
1
19
Bell
1
170
171
Motor Saddle (Large Hole)
Motor Saddle (Small Hole)
1
1
20
Boiler Handrail Left
1
21
Marker Light
2
22
Smoke Box Door Grabiron
1
23
Union Pacific Numberboard
1
24
Boiler Handrail Right
1
25
Forward Dome Weight
1
26
Rear Dome Weight
1
27
Eyelet
4
28
Contact Plate for PC Board
4
29
Locomotive PC Board
1
30
Motor Assembly
1
31
Join Head for Motor
2
32
Boiler Weight
1
33
Cab Support Left
1
34
Air Tank Rear Left
1
35
Piping for Rear Cylinder Left
1
36
Link Bar for Front Cylinder
2
37
Pin for Front Cylinder
2
38
Piping for Front Cylinder
2
39
Pin for Link Bar
4
40
Boiler Bottom
1
41
Screw
1
42
Piping for Rear Cylinder Right
1
43
Reverse Cylinder
1
Description
14
QTY
UNION PACIFIC
CLINCHFIELD
8
9
8
9
10
7
11
7
1
10
1
11
12
2
12
13
4
3
54
3
14
5
5
13
6
14
6
15
16
17
15
26
18
20
19
21
16
17
24
27
25
170
23
22
18
20
19
21
24
28
22
56
29
30
46
171
31
47
57
58
33
32
48
60
RIO GRANDE
59
49
34
45
35
8
44
36
50
9
37
43
51
7
38
52
10
1
39
42
11
12
40
54
41
3
5
6
13
14
53
15
16
17
18
20
19
21
24
56
15
22
RUNNING GEAR
61
93
106
173
108
107
92
109
69
62
110
71
70
63
95
91
68
64
111
90
112
94
96
65
66
72
113
97
67
101
73
174
74
177
98
75
76
79
80
178
114
175
115
105
77
81
104
82
116
83
84
85
172
176
78
103
100
86
102
117
118
87
89
88
Item #
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
Description
Worm Cover
Worm Assembly
Rear Gear Box
Contact Plate Right
Gear Shaft
Compound Gear
Idler Gear
Screw
Contact Plate Left
Rear Cylinder Cover Left
Expansion Link Assembly Rear Left
Rear Cylinder
Crank Left
Brass Sleeve 2#
Tire
Rear Driving Wheel Assembly
Middle Wheel Assembly
Rear W/O Driving Wheel Assembly
Expansion Link Assembly Rear Right
99
QTY
Item #
Description
QTY
Item #
2
2
2
2
4
2
2
3
2
1
1
1
2
7
4
2
2
1
1
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
Crank Right
Main Rod
Side Rod
Pin for Side road
Small Rod #2
Pin #1
Pick Up Plate for Gear Box
Screw
Screw
Rear Gear Box Cover
Front Gear Box
Bearing
Front Cylinder Cover
Expansion Link Assembly Front Left
Front Piston Track Fix Support
Front Cylinder
Piping Under Smoke Box
Piston Track Shaft
Expansion Link Assembly Front Right
2
4
4
4
4
12
4
1
4
1
1
12
1
1
1
4
1
1
1
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
16
Description
Front Gear Box Cover
Screw for Leading Truck
Spring for Leading Truck
Screw
Leading Truck Cover
Leading Wheel Assembly
Leading Truck
Pilot Handrail Right
Head Light
Pilot Handrail Left
Front Light Glass
Bulb
Compressor
Cowcatcher Lift Bar
Micro-Train Coupler (1016-1)
Brass Sleeve #1
Pilot
Dummy Swivel Cover
Support for Dummy Swivel Cover
QTY
Item #
1
1
1
2
2
2
1
1
1
1
1
1
2
1
1
1
1
1
1
118
172
173
174
175
176
177
178
Description
Screw
Pin #1 for Side Rod
Screw
Brass Sleeve #2
Front W/O Driving Wheel Assembly
Front Driving Wheel Assembly
Washer
Brass Sleeve #3
QTY
1
4
1
1
1
1
1
1
Athearn
1550 Glenn Curtiss Street
Carson, CA 90746
www.athearn.com
rev 03.20.07
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