MTHTrains 30-2266-0 User manual

F40PH Diesel
Engine
This RailKing F40PH set boasts a detailed ABS body and operates on O-31 track. This
RailKing Diesel Engine contains M.T.H.’s Loco-Sound™ sound and train control
system. The locomotive is easy to operate with any compatible standard AC transformer
(see the compatibility chart on page 14), and is completely compatible with most other
3-rail locomotives, rolling stock, and accessories.
Please read all the accompanying instructions carefully before setting up and operating
your locomotive.

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RailKing Scale F40PH Diesel Engine
Table of Contents
Initial Lubrication 3
Basic Operation 4
Throttle 4
Operation Buttons 4
Speed Control 5
Direction Lock 5
Proto-Cast and Proto-Dispatch 6
VolumeControl 7
Maintenance 8
Lubrication and Greasing Instructions 8
Cleaning the Wheels, Tires and Track 10
Locomotive Traction Tire Replacement 10
Locomotive Light Bulb Replacement 11
Troubleshooting 12
Compatibility 13
Transformer Compatibility Chart 14
Safety Precautions 15
Service and Warranty Information 16

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RailKing Scale F40PH Diesel Engine
Initial Lubrication
Although the engine was lubricated at the factory, it is important that you
lubricate the chassis before operation. Lightly grease the outside idler and
drive gears marked “G” in Fig. 3 on page 9
to prevent them from squeaking.
Use light household oil and follow the lubrication points marked “L” in Fig.
2 on page 8
. Do not over-oil. Use only a drop or two on each pivot point.
At this point, you are ready to put your engine on the track and begin
running it.

Basic Operation
Throttle – Throttle up the power to your track. Give enough power so that
the engine’s headlight shines brightly. Then put the engine into motion by
either firmly pressing the Direction button on your transformer or remote once
or dropping and advancing the throttle to put the engine in forward.
Operation Buttons
Use the operation buttons on your transformer as described below.
Horn/Whistle - To sound the horn, 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. The whistle has four different endings,
depending on whether you hold the button for less than three seconds, three
seconds, four seconds, or five seconds or longer.
Bell - To sound the 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 your turn it on until you press and release the button again to
turn it off.
Direction – Your train is programmed to start in neutral. To put the engine
into forward and then to change the direction of the train or to put it into
neutral, firmly press and release the Direction button on your transformer.
Just as you must stop your car between forward and reverse, this engine will
not go directly from forward to reverse; it goes into neutral between
directions. If the train has been moving forward, the first press of the
Direction button will put the train from forward into neutral, the second press
into reverse, the third press back into neutral, and the fourth back into
forward. To prevent accidental high-speed start-ups, this engine is
programmed to restart in neutral each time the track voltage is turned off for
10 seconds or more.
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RailKing Scale F40PH Diesel Engine

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RailKing Scale F40PH Diesel Engine
Speed Control:
M.T.H. engines equipped with Loco-Sound 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.
To turn speed control on and off
,put the engine in neutral, then press the
transformer’s Whistle button firmly but quickly one time then immediately
press the Bell button two times. Repeat the 1 whistle, 2 bells code to return it
to the other state.
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.
Direction Lock:
You can lock your engine into a directional state (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
speed (< 10 scale mph), and quickly but firmly press your transformer’s
Whistle button once followed immediately by three presses of the Bell button.
The engine will not change direction (including going into neutral) until you
repeat the 1 whistle, 3 bells code to return the engine to its normal state.
Feature to Be Activated:
Speed Control On/Off
Lock into a Direction/Unlock
Button Code:
1 Whistle, 2 Bells
1 Whistle, 3 Bells

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RailKing Scale F40PH Diesel Engine
Proto-Cast and Proto-Dispatch:
When used with the RailKing Remote Lock-on (sold separately),
Loco-Sound-equipped engines gain Proto-Cast™and Proto-Dispatch™
features.
Proto-Cast: This feature allows you to play audio recordings through your
engine’s speakers. You must supply the audio source (a small portable is
sufficient) and a male-to-male mini cable (1/8” plug, like that used for the
headset with a portable CD/tape player) to connect your audio source to the
remote lock-on. To use Proto-Cast, simply plug the mini-cable into your audio
source (usually into the headphone jack) and into the “Audio” port on the right
side of the remote lock-on and adjust the volume.
Proto-Dispatch:
This feature allows you to broadcast your own voice through
your engine’s speakers. You must supply the microphone and a mini cable
(1/8” plug, like that used for the headset with a portable CD/tape player) to
connect your microphone to the remote lock-on. To use Proto-Dispatch,
simply plug the mini-cable into the microphone and into the “Mic” port on the
left side of the remote lock-on and speak into the microphone.
When these features are in use, the locomotive’s own sounds (engine sounds
and bells, whistles, and horns) will be muted so that only the sounds you
broadcast will be heard. Because these two features are voice activated, there
will be a 10-15 second delay after you stop speaking into the microphone or
turn off the audio source before the engine sounds resume. To stop using the
feature and return to normal operation, unplug the cable from the lock-on jack.
If using parallel tracks with multiple Loco-Sound-equipped engines,
Proto-Cast and Proto-Dispatch transmissions from one track may be picked up
by the other nearby engines.
If you experience popping and interference, try cleaning the track with
denatured alcohol as described in the “Cleaning the Wheels, Tires and Track”
section of this booklet.
Note: M.T.H. does not recommend using Proto-Cast and Proto-Dispatch
at the same time.

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RailKing Scale F40PH Diesel Engine
Manual Volume Control
–To adjust the volume of all sounds made by
this engine, turn the master volume control knob located under the tender
clockwise to increase the volume and counter-clockwise to decrease the
volume (see Fig.
1).
Loco-Sound
Volume Adjustment Knob
Figure 1.Location of the Loco-Sound Volume Adjustment Knob

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RailKing Scale F40PH Diesel Engine
Maintenance:
Lubrication and Greasing Instructions
The engine should be oiled and greased in order to run properly.
You should regularly lubricate all outside idler gears and pickup rollers to
prevent them from squeaking. Use light household oil and follow the
lubrication points marked “L” in Fig. 2. Do not over oil. Use only a drop or
two on each pivot point.
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. Use lithium based grease and follow the greasing instructions
below. Note that in some tightly packed engines you may need to move
internal components temporarily in order to access the gears.
1. Remove the Phillips screws from the chassis, as seen in Figure 3, then lift
the body away from the chassis.
2. Remove the truck blocks from the chassis by unscrewing the black Phillips
motor mount screw on the bottom of each truck block, as shown in Figure 3.
3. Once the motor mount screw has been removed, pull the motor away from
the truck block and lightly coat the motor worm gear and bronze drive gear (in
the truck block) with grease (See Figure 3a).
4. Reassemble the truck and motor, being careful not to pinch any wires
between the truck block and motor mount.
Lubricate Pick Up Roller (L)
LubricateAxleBushings(L)
Figure 2. Lubrication Points on the Engine

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RailKing Scale F40PH Diesel Engine
Motor Mount Screw
Grease Idler Gear (G)
Body Mount Screws BodyMountScrews
Motor Mount Screw
Figure 3. Body Mount Screws and Greasing Points.
5. Repeat the procedure for the other motor and truck
6. Reassemble the chassis and body, being careful that the wires are not caught
between the body and chassis, as this can lead to a short that may damage the
electronics beyond repair.
It is also a good idea to lubricate the outside truck block idler and drive gears
with grease occasionally. Add grease to the points marked with “G” in Figure
3.
Worm Gear
Figure 3a. Grease the Worm Gear

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RailKing Scale F40PH Diesel Engine
Cleaning the Wheels, Tires and Track
Periodically check the locomotive wheels and pickups for dirt and buildup,
which can cause poor electrical contact and traction as well as prematurely
wear out the neoprene traction tires. Wheels and tires can be cleaned using
denatured alcohol (not rubbing alcohol), which can be found in home
improvement stores, applied with a cotton swab.
Occasional cleaning of the track will also help to ensure good electrical
contact and to prolong the life of your engine’s tires. To clean the track, use a
clean rag and denatured alcohol (not rubbing alcohol). Unplug the transformer
and wipe the rails of the track, turning the rag frequently to ensure that you are
using clean cloth on the rails.
Traction Tire Replacement Instructions
Your locomotive is equipped with two neoprene rubber traction tires on each
powered truck block. While these tires are extremely durable, you may need
to replace them at some point.
First, remove the truck sides from
the truck block. To do this, turn
your engine upside down. If there
are visible Phillips screw heads
between the truck frame and truck
block (see Fig. 4), go to step A. If
not, go to step B.
A. Remove the two Phillips screws
that attach the truck sides to the
truck block.
B. Remove the trucks from the
chassis and the truck sides from the
trucks in order to slip the new tire
over the grooved drive wheel. See Fig.4for which screws you must remove
to do this.
Once the truck sides have been removed:
1. 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.
Screws for truckside removal
Figure 4. Screws to Remove to Access the
Traction Tires