Rail King 4-6-4 J3a Hudson User manual

Compatibility
This locomotive is capable of operating on
AC or DC output power supplies (See page
25 for a complete list of compatible
transformers and wiring instructions.) and
indoors or outdoors. MTH does not
recommend operating the locomotive in
inclement weather and strongly suggests that
it not be left out in the elements. The
locomotive will negotiate an R2 G-Gauge
curve track or switch. Additional features
may be utilized when controlling the engine
with MTH’s Digital Command System
(DCS).
PLEASE READ BEFORE USE AND SAVE
4-6-4 J3a Hudson Steam
Locomotive OPERATOR’S MANUAL

CAUTION: ELECTRICALLY OPERATED PRODUCT:
Not recommended for children under 10 years of age. M.T.H. recommends adult supervision with children ages 10 - 16.
As with all electric products, precautions should be observed during handling and use to reduce therisk of electric shock.
WARNING:When usingelectricalproducts,basicsafetyprecautionsshouldbeobserved,includingthefollowing:
Readthis manualthoroughlybefore usingthis device.
M.T.H. recommends that all users and persons supervising use examine the hobby transformer and other electronic equipment
periodically for conditions that may result in the risk of fire, electric shock, or injury to persons, such as damage to the primary
cord, plug blades, housing, output jacks or other parts. In the event such conditions exist, the train set should not be used until
properlyrepaired.
Donotoperateyourlayoutunattended. Obstructedaccessoriesorstalledtrainsmayoverheat,resulting in damage toyourlayout.
Thistrainsetisintendedforindoororoutdooruse. Donotuseif waterispresent. Seriousinjuryorfatalitymay result.
l
l
l
lDonotoperatethehobbytransformerwithdamagedcord,plug,switches,buttonsorcase.
Table of Contents
Set Up Checklist................................................................................................... 3
Tender Coupler Installation...................................................................3
Lubrication.............................................................................................4
Priming The Smoke Unit.......................................................................4
Checking The Battery............................................................................5
Placing The Engine On The Track.........................................................6
Basic Operation....................................................................................................7
Activating Features................................................................................8
Proto-Sound 2.0 Operating Instructions ......................................................... 10
Activating Proto-Sound 2.0 Conventional Mode Features................... 10
Freight Yard Sounds (FYS).................................................................. 11
Speed Control........................................................................................ 13
Locking Locomotive Into A Direction.................................................. 14
Reset To Factory Default.......................................................................14
Automatic Sound Effects.......................................................................14
Maintenance......................................................................................................... 15
Lubricating and Greasing Instructions...................................................15
Traction Tire Replacement Instructions.................................................17
Light Bulb Replacement Instructions....................................................18
Self Charging Battery Back-Up.............................................................19
ProtoSmoke® Unit Operation................................................................20
Troubleshooting Proto-Sound® 2.0 Problems.......................................22
Transformer Compatibility and Wiring Chart.......................................25
Additional Features Accessible With The DCS System..................................26
Service & Warranty Information...........................................................27
Limited One-Year Warranty..................................................................27
Participating Retailer List......................................................................28

4-6-4 J3a Hudson Steam Locomotive 3
Set Up Checklist
•Install the tender coupler
•Lubricate the locomotive
•Prime the smoke unit
•Check to see whether the batteries need to be charged for full sound effects
•Apply power to run as described in the Basic Operating Section of this manual
Installing The Tender Coupler
This RailKing One-Gauge locomotive can be equipped with three different types of
G-Gauge couplers - an MTH knuckle coupler, an MTH hook & loop coupler or a 1/32nd
Kadee coupler. For your convenience, the MTH knuckle and the hook & loop couplers
have been included with your locomotive. The Kadee type must be the 1/32nd size and
can be purchased from a Kadee coupler retailer. Prior to installation, you will need to
install the Kadee coupler base included inside your locomotive’s packaging.
Both the standard knuckle and the hook and loop coupler designs attach to the tender
trailing truck in the same manner as seen in Figures 2 and 3.
Knuckle Coupler
In Standard Factory Position “A”
Figure 2: Knuckle Coupler Position “A”
Hook & Loop Coupler
Figure 3

Installing The Tender Coupler (cont’d)
44-6-4 J3a Hudson Steam Locomotive
If the locomotive is to be mated up with a
different scaled G-Gauge locomotive, freight
or passenger car, the knuckle coupler
assembly may need to be relocated on the
coupler armature as seen in Fig. 4. The
second lower location or position “B” is on
the bottom of the armature extending from
the truck rather than the default top position
“A” which is on top of the armature. Simply
unscrew the coupler shaft from the armature,
separate the coupler knuckle (attached by
screw & nut) from this shaft and relocate to
the bottom of the shaft. Reassemble.
Note: When the standard knuckle coupler is
installed in position B, the knuckle pin must
be cut off as shown in Fig. 4. The coupler
pin has been “scored” so that it can be easily
cut off with a pair of snippers.
The Hook and Loop coupler mounts to the
truck armature in the same manner as the
Knuckle Coupler. Note that the mounting
screw is located behind the rear axle as seen
in Figure 5.
If a Kadee Coupler is to be installed, remove the MTH knuckle or hook & loop coupler
and install the Kadee Coupler base included in your locomotive packaging as seen in
Figure 5a. Once the coupler base is installed, attach the Kadee Coupler onto the mount
(See Fig. 5b) by following the Kadee Coupler’s installation guide.
Hook and Loop and
Knuckle Couplers
Attach To Truck
Armature Via This
Mounting Screw
Figure 5
Standard Knuckle Coupler
In Position “B”
Armature
Must Be
Cut Off
Here To
Avoid
Interfering
With Track
Roadbed
Figure 4
Install Kadee Coupler
Mount into mounting
holes on tender chassis
Figure 5a
Install Kadee Coupler
OntoCouplerMount
UsingKadeesupplied
screws
Figure 5b

4-6-4 J3a Hudson Steam Locomotive 5
Lubrication
You should lubricate the engine to prevent it from squeaking. Use
light household oil and follow the lubrication points marked “L” in
Fig. 6. Do not over-oil. Use only a drop or two on each pivot point.
Lubricate Side Rods and Linkage (L) (Both Sides)
Lubricate Axle Bushings (L)
Lubricate Axle Bushings (L)
Figure 6. Lubrication Points on the Locomotive
Priming The Smoke Unit
When preparing to run this engine, add 30-40
drops of smoke fluid through the smokestack.
We recommend M.T.H. ProtoSmoke, Seuthe,
LGB, or LVTS fluids. Do not overfill the unit or
the fluid may leak out and coat the interior engine
components.
If you choose not to add the fluid (or have
already added the fluid but choose to run
smoke-free), rotate the smoke unit knob located
inside the boiler front (see Fig. 7) to the off
position (rotate clockwise). If you wish to
regulate the smoke output intensity, turn the knob
between full counterclockwise and full clockwise
until the desired smoke output is reached.
Failure either to add fluid to the unit or to turn it off may damage the smoke unit
heating element and/or wicking material.
While MTH does not recommend operating outdoors in inclement weather (in order to
prevent possible damage to the electronics), we have included for your convenience, a
smoke stack “cap” inside your locomotive packaging. This cap should be inserted on the
smoke stack to prevent moisture from entering the smoke unit chamber.
DO NOT
OVER OIL
Running the engine without a primed
smoke unit may cause damage
Figure 7: Smoke Unit Switch Location

64-6-4 J3a Hudson Steam Locomotive
Checking The Battery
You may find, if your locomotive was built several months before you set it up, that the
rechargeable batteries have run down and need to be charged before operating. If you
notice that the sounds are garbled, test and charge the engine as described in the
"Self-Charging Battery Back-Up" on page 19.
Placing The Engine On The Track
Place the engine on the track, then insert the reverse unit plug that extends out of the
tender into the receptacle at the back of the boiler cab (Figure 8. WARNING: DO NOT
CONNECT THIS ENGINE TO A TENDER FROM ANOTHER ENGINE; IT MAY
CAUSE SERIOUS DAMAGE.
Connect the draw bar between the engine and
tender.
At this point, you are ready to begin running your
engine.
Plug Tender Plug into
Boiler Socket at back of cab.
Figure 8: Connecting Tender Hanress

4-6-4 J3a Hudson Steam Locomotive 7
Basic Operation
RailKing One-Gauge locomotives can be operated with AC or DC power output
transformers. When using DC output power supplies, the user can only control the
lcomotive speed and direction. The locomotive will still make engine sounds but no bell
or whistle control is possible when using a DC output power supply unless the user
wishes to hook up the power supply to MTH’s separately sold Digital Command System
(see below).
As with all G-Gauge locomotives, the Throttle knob or handle controls how fast your
train will travel.
Throttle To increase or decrease track voltage, and therefore train speed, turn or slide
the throttle control knob. Turning clockwise will increase voltage and speed, while
turning counterclockwise will decrease voltage and speed. Because your RailKing
One-Gauge locomotive is equipped with MTH’s Speed Control feature, the engine will
maintain the speed you set after you release the throttle until you turn it again to change
the voltage and speed. This feature works very similarly to a cruise control system found
in automobiles and allows the engine to maintain its speed even as it enters curves,
traverses grades or coasts down inclines.
Direction - To change locomotive direction, slow the engine down using the throttle
knob until the engine comes to a complete stop but power still remains on the track.
Slide the direction switch on the power supply to the opposite direction and increase the
throttle setting again to allow the locomotive to begin running in the opposite direction.
Activating Features Using DC Power
Using DCS With DC Power
MTH’s revolutionary Digital Command System, or
DCS, allows users to control their RailKing
One-Gauge locomotives in a command control
evironment. User’s can remotely access hundreds
of features inside each RailKing One-Gauge
locomotive with the wireless remote control.
Digital signalling and an easy-to-use interface make
using DCS a snap. More information on DCS can
be found on page 26 or by visiting
www.protosound2.com.

84-6-4 J3a Hudson Steam Locomotive
Activating Features Using AC Power
Using an AC output transformer equipped with a whistle and bell button will unlock
dozens of features inside your RailKing One-Gauge locomotive. Operation is simple by
following the simple steps below and on the following pages.
Start Up - Turn the throttle knob up ½-way, until the engine headlight shines bright.
Put the engine into motion by pressing the Direction button on your transformer once.
(hold it for approximately 1 second)
If the engine does not begin to move as soon as you firmly press the Direction button,
you may not have sent enough voltage to the track to make the train move. Turn the
throttle up a bit higher until the train begins to move.
Throttle - To increase or decrease track
voltage, and therefore train speed, turn the
throttle control knob. Turning clockwise
will increase voltage and speed, while
turning counterclockwise will decrease
voltage and speed. The engine will
maintain the speed you set after you
release the throttle until you turn it again to
change the voltage and speed.
Bell- To sound the bell, in an engine
equipped with a bell firmly press and release the Bell button. To turn the bell off, press
and release the Bell button again. The bell will continue to ring from the time you turn it
on until you press and release the button again to turn it off.
Horn/Whistle- To sound the whistle, firmly press the Horn/Whistle button. The whistle
will sound for as long as you continue to depress the button. It will stop when you
release the button.
Direction Your train is programmed to start in neutral. The train will always cycle
neutral-forward-neutral-reverse with each press and release of the direction button. The
engine is programmed to restart in neutral each time the track voltage is turned off for 25
seconds or more.
CyclePhases
Neutral
Neutral ForwardReverse

4-6-4 J3a Hudson Steam Locomotive 9
Manual Volume Adjustment - To adjust the volume of all sounds made by this engine,
turn the master volume control
knob located inside the boiler
front clockwise to increase the
volume and counter-clockwise to
decrease the volume.
Figure 4: Manual Volume Adjustment (lower knob)

10 4-6-4 J3a Hudson Steam Locomotive
The following pages contain the operating instructions for Proto-Sound 2.0 RailKing
One-Gauge locomotives when operated with AC output transfomrers in conventional
mode only. Instructions for accessing DCS command mode features accompany the DCS
Remote Control System equipment.
Proto-Sound 2.0 features are activated by sequences of Bell and Horn button pushes
described below. Please read the full descriptions of each feature before using it. To use
these buttons to activate features rather than to blow the horn or ring the bell, you should
Proto-Sound 2.0
Operating Instructions
Timing Chart
Total Time Lapse: 1 Seconds½
Press
Horn
Short &
Firm
½ Sec.
Pause ½ Sec. Pause
Press
Bell
Short&
Firm
Press
Bell
Short &
Firm
Feature to Be Activated Button Code:
Freight Yard Announcements
Speed Control On/Off
Lock into a Direction
Reset to Factory Defaults
1Bell,2Horns
1 Horn, 2 Bells (from Neutral only)
1 Horn, 3 Bells
1 Horn, 5 Bells (from Neutral only)
Activating Proto-Sound 2.0 Conventional
Mode Features

11 4-6-4 J3a Hudson Steam Locomotive
Your engine is equipped with a sound package of freight yard sounds that you can play
when you pull into a yard. Each sequence described below will play as long as it is left
on, randomly generating sounds, but be sure to allow approximately 30 seconds between
the button pushes described below to allow the FYS sufficient time to run through each
sequence.
•To cue the sound system to play the FYS, quickly but firmly tap the Bell button
once followed by 2 quick taps of the Horn button while the engine is moving.
Tap the buttons quickly but allow approximately ½ second between each press.
•Press the Direction button once to stop the engine. This will trigger the first
sequence of FYS. The reverse unit is temporarily disabled so that the train will
not move as you use the Direction button to trigger the sounds, and Proto-Sound
2.0 has disabled operator control over the Horn and Bell buttons until the full
FYS sequence is complete.
•After waiting about 30 seconds for that sequence to run, press the Direction
button again to trigger the second sequence of FYS.
•After about 30 seconds, press the Direction button again to trigger the third FYS
sequence.
•Again, after allowing about 30 seconds for that sequence to run, press the
Direction button one more time to trigger the fourth and final FYS sequence.
The FYS will continue, and within a few seconds, the engine and bell will start
and move out on its own at the current throttle setting, in the same direction it
was traveling when you began the sequence. Once the bell turns off, the operator
regains control of the transformer's bell and Horn buttons and can ring the bell or
blow the Horn as usual.
+
Sound System Cued
toPlay Passenger
Station Announcements (FYS)
Horn Horn
Bell Direction
1st
Sequence
FYS
+
Direction
2nd
Sequence
FYS
+
Direction
3rd
Sequence
FYS
+
Direction
4th
Sequence
FYS
=Operator
Controls
When Bell
Turns Off
Freight Yard Sounds (FYS)

12 4-6-4 J3a Hudson Steam Locomotive
Tips on Using FYS
•You can terminate FYS at any time by turning off power to the track for 15
seconds.
•You do not have to be in Forward to use FYS. At the conclusion of the full
sequence, the train will pull away from the station in whatever direction you
were going when you activated the feature.
•You can use FYS even if you are double-heading with another engine. If the
second engine is not equipped with Proto-Sound 2.0, you must remember
not to leave the throttle at a high voltage level once you have stopped the
engine to run the FYS. Otherwise, the engine without FYS will begin
vibrating on the track as its motors strain to move the train, since they
cannot be automatically disabled during the FYS cycle (or if an original
Proto-Sound engine, FYS are triggered differently and that engine's
motor-disable feature will not be active when you run FYS in Proto-Sound
2.0).
•FYS can be triggered from Neutral. It will operate the same as if triggered
while in motion except that, at the conclusion of the FYS, the engine will
depart in the next direction of travel, as opposed to the direction it was
traveling before entering Neutral.

4-6-4 J3a Hudson Steam Locomotive 13
M.T.H. engines equipped with Proto-Sound 2.0 have speed control capabilities that allow
the engine to maintain a constant speed up and down grades and around curves, much
like an automobile cruise control. You can add or drop cars on the run, and the engine
will maintain the speed you set.
While the engine is programmed to start with the speed control feature activated, you can
opt to turn it off. This means the engine's speed will fall as it labors up a hill and increase
as it travels downward. It is also affected by the addition or releasing of cars while on the
run. Because the engine will run more slowly at a given throttle voltage when speed
control is on than when it is off, you should adjust the throttle to a lower power level for
operation with speed control off to avoid high-speed derailments. When speed control is
off, the volume will drop to allow for better low voltage operation.
To turn speed control on and off, put the engine in neutral, then quickly tap the
transformer's Horn button one time then quickly tap the Bell button two times, allowing
approximately ½ second to lapse between each quick button press. Two horn blasts will
indicate that the engine has made the change. Repeat the 1 horn, 2 bells code to return it
to the other condition. You will want to do this during the initial neutral upon start-up if
you ever couple this engine to another engine that is not equipped with speed control to
avoid damaging the motors in either engine. Each time you shut down the engine
completely, it will automatically turn speed control on.
Horn
Place
Engine into
Neutral
Bell Bell
=SpeedControl
Two Horn Blasts
RepeattoReturn
to Normal Condition
(indicates change is made)
Speed Control

14 4-6-4 J3a Hudson Steam Locomotive
You can lock your engine into a direction (forward, neutral, or reverse) so that it will not
change directions. To do this, put the engine into the direction you want (or into neutral
to lock it into neutral), run it at a very slow crawl (as slowly as it will move without
halting), and quickly but firmly tap the Horn button once followed by three quick taps of
the Bell button, allowing approximately ½ second to lapse between each quick button
press. Two horn blasts will indicate that the engine has made the change. The engine will
not change direction (including going into neutral) until you repeat the 1 horn, 3 bells
code to return the engine to its normal condition, even if the engine is kept without power
for extended periods of time.
Horn
Place
Engine into
Desired
Direction
Horn Bell Bell Bell =Direction Lock
Two Horn Blasts
Repeat to Return
to Normal Condition
(indicateschangeismade)
To override the settings you currently have assigned to the engine and reset it to its
factory defaults, while in Neutral tap the Horn button quickly once, followed by five
quick taps of the Bell button, allowing approximately ½ second to lapse between each
quick button press. Two horn blasts will indicate that the engine has made the change.
Reset
TwoHornBlasts
Repeat to Return
to Normal Condition
(indicateschange ismade)
Horn
Place
Engine in
Neutral =
BellBellBellBellBell
Certain Proto-Sound 2.0 sound effects automatically play in programmed conventional
mode conditions:
•Squealing Brakes play any time the engine's speed decreases rapidly.
•Cab Chatter plays at random intervals when the engine idles in neutral.
•Engine Start-up and Shut-down sounds play when the engine is initially powered
on or is powered off for five seconds or more.
Locking Locomotive Into A Direction
Reset To Factory Default
Automatic Sound Effects

4-6-4 J3a Hudson Steam Locomotive 15
Maintenance
The engine should be well oiled and greased in order to run properly.
You should regularly lubricate all side rods and linkage components to
prevent them from squeaking. Use light household oil and follow the
lubrication points marked “L” in Fig. 9. Do not over-oil. Use only a
drop or two on each pivot point.
DO NOT
OVER OIL
Lubricate Side Rods and Linkage (L) (Both Sides)
Lubricate Axle Bushings (L)
Lubricate Axle Bushings (L)
Figure 9: Lubricating The Chassis
You should also grease the leading and trailing locomotive truck tongues to enhance their
ability to slide on the chassis. Follow the grease points shown on Fig. 10.
The locomotive’s internal gearing was greased at the factory and should not need
additional grease until after 50 hours of operation or one year, whichever comes first. To
access the gear box and axles, do the following:
1. Turn the engine upside down and remove the leading truck mounting screws (you will
have to remove the leading truck plate as well) to gain access to the front boiler mounting
screw. Remove that screw and the two rear boiler mounting screws as seen in Figure 11.
Lubricating and Greasing Instructions
Grease Pivot Point (G)
Grease Pivot Point (G)
Figure 10: Greasing the leading and trailing truck pivot points.

16 4-6-4 J3a Hudson Steam Locomotive
2. After removing the boiler mounting screws, separate the
boiler from the chassis and turn the chassis upside down.
3. Next, locate the pickup assembly behind the middle set of
drive wheels and remove its mounting screw as seen in Fig.
13.
3. Locate and remove the four
gearbox bottom access cover
screws as seen in Fig. 14.
4. Turn the chassis right side up
and remove the two chassis
weight monting screws as seen
in Figure 15.
5. After removing the chassis
weight mounting screws, lift the
weight out of the chassis and
remove the gearbox top access
cover mounting screws as seen
in Fig. 16.
Body Mounting Screws Body Mounting Screw
(Under Leading Truck)
Figure 11: Removing The Body
Remove Pickup Mount Screw
Figure 13: Locate and remove the pickup mounting screw
Remove Gearbox Inspection Screws (4)
Figure 14: Removing The Gear Box
Bottom Access Cover
Remove Truck Guide Plate
ByPullingItUp
Figure 12
Remove Chassis Weight Screws
Figure 15: Chassis Weight Mounting Screws

4-6-4 J3a Hudson Steam Locomotive 17
6. Lift the gearbox up and out
of the chassis, rotate 190
degrees to reveal the now
exposed gears and lubricate
with a light grease.
Your locomotive is equipped with two neoprene rubber traction tires on the rear set of
flanged drivers. While these tires are extremely durable, you may need to replace them at
some point.
1. Remove the side rods from the wheels in order to slip the new tire over the grooved
drive wheel. Make sure to note the position of all rods before removing.
2. Make sure the old tire has been completely removed from the groove in the drive
wheel, using a razor blade or small flathead screwdriver to pry away any remains.
3. Slip the new tire onto the wheel. You may find it useful to use two small flathead
screwdrivers to stretch the tire over the wheel.
4. If you twist the tire while stretching it over the wheel, you will need to remove and
reinstall the tire. Otherwise your engine will wobble while operating.
5. Make sure the tire is fully seated inside the groove. Use a razor blade to trim away any
excess tire that doesn’t seat itself inside the groove properly.
6. Reinstall the side rods in the same positions as noted. Failure to align rods may cause
binding or damage to the drive system.
One set of replacement tires is packaged with your model. Additional sets are available
directly from the M.T.H. Parts Department (order online: www.mth-railking.com,
e-mail: [email protected]; mail: 7020 Columbia Gateway Drive, Columbia MD
21046-1532, FAX: [phone]).
Traction Tire Replacement Instructions
Pull Gearbox up and rotate to expose gears for greasing
Figure 17: Insert Grease Into Gear Box
Remove Gearbox Casing Screws
Figure 16: Gear Box Top Access Cover

18 4-6-4 J3a Hudson Steam Locomotive
The locomotive and tender lights are controlled by a constant voltage circuit in the
engine. They can be removed and replaced when they burn out by separating the boiler
from the chassis as seen on page 16. Once the boiler has been separated, see the
illustrations below to remove the headlight and firebox glow light. The tender body can
be removed by unscrewing the six (6) mounting screws located on thetender chassis.
You can obtain replacement bulbs directly from the M.T.H. Parts Department (order
online: www.mth-railking.com, e-mail: [email protected]; mail: 7020 Columbia
Gateway Drive, Columbia MD 21046-1532, FAX: [phone]).
To Replace:
Gently pull the wires until the bulb comes free of the housing. Push the new bulb into
place and reconnect the wires.
Headlight Connection Firebox Glow Connection
Figure 18: Boiler Wire Harness
Light Bulb Replacement Instructions
Firebox and Cab
Interior Harnesses
Figure 19
Disconnect Headlight
Harness And Pull Wires
Through Boiler
Figure 20

4-6-4 J3a Hudson Steam Locomotive 19
The special NiCad AA self-charging batteries recharge continuously during train
operation and should last between one and five years. The batteries should not leak or
cause any damage to your engine. Depending upon when your engine was built, it may
need to be charged right out of the box. If engine sounds seem distorted or garbled at low
voltages or become silent when power from the transformer is turned off, test the battery
to determine whether it should be recharged or replaced.
Test: Put the engine in neutral and leave the track voltage at 10-12 volts (high enough
for the lights to shine brightly and the engine to move steadily) for 15 minutes.
Recharge: If the sounds are improved at the end of the 15-minute test charge, the battery
charge has run down and can be recharged. There are a number of ways you can do this:
•Leave the engine in neutral with track voltage at 10-12 volts for 6-7 hours so the
battery can fully recharge (if your engine has a smoke unit, be sure it is turned
off).
•Remove the batteries and recharge them in aNiCad battery charger.
Replace: If the sounds are not improved at the end of the 15-minute test charge, it is
time to replace the batteries. Replacement batteries can be ordered through MTH. The
batteries are located inside the locomotive boiler. See page 16 for instructions on
removing the boiler from the chassis.
Self Charging Battery Back-Up

20 4-6-4 J3a Hudson Steam Locomotive
This RailKing One-Gauge steam locomotive contains a self-powered smoke unit that
outputs smoke through the smokestack on the roof of the engine. The smoke unit is
essentially a small heating element and wick that soaks up and then heats a mineral
oil-based fluid that emits a harmless smoke. The smoke is then forced out of the stack by
a small electric fan. Smoke volume is controlled by the Proto-Sound 2.0 system.
With a few easy maintenance steps, you
should enjoy trouble-free smoke unit
operation for years.
When preparing to run this engine, add
30-40 drops of smoke fluid through the
smokestack (see Fig. 21). We recommend
M.T.H. ProtoSmoke, Seuthe, LGB, or
LVTS fluids. Do not overfill the unit or
the fluid may leak out and coat the interior
engine components.
If you choose not to add the fluid (or have
already added the fluid but choose to run
smoke-free), turn off the smoke
unit switch located inside the
boiler front door (see Fig. 22).
Failure either to add fluid to the
unit or to turn it off may
damage the smoke unit heating
element and/or wick material.
When the smoke output while
running the engine begins to
diminish, add another 10-15 drops
of smoke fluid or turn the smoke
unit off.
When storing the unit for long
periods of time, you may want to
add about 15 drops of fluid to
prevent the wick from drying out.
After removing the engine from storage, add another 25 drops of fluid, letting the wick
soak up the fluid for 15 minutes prior to operation.
Add Smoke Fluid
Figure 21
ProtoSmoke® Unit Operation
Figure 22