O.S. engine FS-40S Guía de configuración
It is of vital importance, before attempting to
operate your engine, to read the general
'SAFETY INSTRUCTIONS AND WARNINGS'
section on pages 2-6 of this booklet and to strictly
adhere to the advice contained therein.
●Also, please study the entire contents of this
instruction manual, so as to familiarize yourself
with the controls and other features of the
engine.
Keep these instructions in a safe place so that
you may readily refer to them whenever
necessary.
It is suggested that any instructions supplied
with the aircraft, radio control equipment, etc.,
are accessible for checking at the same time.
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SAFETY INSTRUCTIONSAND WARNINGS
ABOUT YOUR O.S. ENGINE
INTRODUCTION,BASIC ENGINE PARTS
INSTALLATION
INSTALLATION OF CHOKE ROD, NEEDLE VALVE
EXTENSION, EXHAUST PIPE ADJUSTMENT(FS-26S)
SILENCER,
LINKAGE OF THROTTLE LEVER
BEFORE STARTING
FUELAND PRESSURE LINES
ADVICE ON SELECTION OF FUEL,
GLOEPLUG & PROPELLER
STARTING THE ENGINE
CONTENTS
RUNNING -IN
CARBURETOR
CARBURETOR AIR-BLEED ADJUSTMENT
TROUBLE SHOOTING WHEN THE
ENGINE FAILS TO START
VALVE ADJUSTING
CARE AND MAINTENANCE
THREE VIEW DRAWING
ENGINE EXPLODED VIEW
CARBURETOR EXPLODED VIEW
& PARTS LIST
GENUINE PARTS &ACCESSORIES
MEMO
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1
Remember that your engine is not a "toy", but a highly efficient internal-
combustion machine whose power is capable of harming you, or others, if it is
misused.
As owner, you, alone, are responsible for the safe operation of your engine, so act
with discretion and care at all times.
If at some future date, your O.S. engine is acquired by another person, we would
respectfully request that these instructions are also passed on to its new owner.
SAFETY INSTRUCTIONS AND WARNINGS ABOUT YOUR O.S. ENGINE
The advice which follows is grouped under two headings according to the
degree of damage or danger which might arise through misuse or neglect.
WARNINGS NOTES
These cover events which
might involve serious (in
extreme circumstances, even
fatal) injury.
These cover the many other
possibilities, generally less obvious
sources of danger, but which, under
certain circumstances, may also
cause damage or injury.
2
WARNINGS
Model engine fuel is poisonous. Do not
allow it to come into contact with the eyes
or mouth.Always store it in a
clearlymarkedcontainerand
out of the reach of children.
Never operate your engine in an en-
closed space. Model engines, like auto-
mobile engines, exhaust deadly carbon-
monoxide. Run your engine only in an
open area.
Model engines generate considerable
heat. Do not touch any part of your
engine until it has cooled. Contact with
the muffler (silencer),
cylinder head or exhaust
header pipe, in particular,
may result in a serious burn.
•
•
•
•
Never touch, or allow any object to come
into contact with, the rotating
propeller and do not crouch
over the engine when it is
running.
A weakened or loose propeller may
disintegrate or be thrown off and, since
propeller tip speeds with powerful
engines may exceed 600 feet(180 metres)
per second, it will be understood that
such a failure could result in serious
injury, (see 'NOTES' section relating to
propeller safety).
•
Model engine fuel is also highly
flammable. Keep it away from open flame,
excessive heat, sources of sparks, or
anythingelsewhichmightignite
it.Donotsmokeorallowanyone
else to smoke, near to it.
•
3
NOTES
•
•
•
•
•
This engine was designed for model
aircraft. Do not attempt to use it for any
other purpose.
Mount the engine in your model securely,
following the manufacturers' recommenda-
tions, using appropriate screws and lock-
nuts.
Be sure to use the silencer (muffler)
supplied with the engine. Frequent
exposure to an open exhaust may
eventually impair your hearing.
Such noise is also likely to cause
annoyance to others over a wide area.
Install a top-quality propeller of the
diameter and pitch specified for the engine
and aircraft. Locate the propeller on the
shaft so that the curved face of the blades
faces forward-i.e. in the direction of flight.
Firmly tighten the propeller nut, using the
correct size wrench.
If you remove the glowplug from the engine
and check its condition by connecting the
battery leads to it, do not hold the plug with
bare fingers.Use an appropriate tool or a
folded piece of cloth.
4
NOTES
•
•
Always check the tightness of the propeller
nut and retighten it, if necessary, before
restarting the engine, particularly in the
case of four-stroke-cycle engines. If a
safety locknut assembly is provided with
your engine, always use it. This will prevent
the propeller from flying off in the event of a
"backfire", even if it loosens.
If you install a spinner, make sure that it is
a precision made product and that the
slots for the propeller blades do not cut into
the blade roots and weaken them.
Preferably, use an electric starter. The
wearing of safety glasses is also strongly
recommended.
•
•Discard any propeller which has become
split, cracked, nicked or otherwise rendered
unsafe. Never attempt to repair such a
propeller: destroy it. Do not modify a propeller
inanyway,unlessyouarehighlyexperienced
in tuning propellers for specialized
competition work such as pylon-racing.
Take care that the glow plug clip or battery
leads do not come into contact with the
propeller. Also check the linkage to the
throttle arm. A disconnected linkage could
also foul the propeller.
After starting the engine, carry out any
needle-valve readjustments from a safe
position behind the rotating propeller. Stop
the engine before attempting to make other
adjustments to the carburettor.
•
•
5
NOTES
•
•
•
•
•
Adjust the throttle linkage so that the engine
stops when the throttle stick and trim lever
on the transmitter are fully retarded.
Alternatively, the engine may be stopped by
cutting off the fuel supply. Never try to stop
the engine physically.
Take care that loose clothing (ties, shirt
sleeves, scarves, etc.)do not come into
contact with the propeller.Do not carry loose
objects (such as pencils, screwdrivers, etc.)
in a shirt pocket from where they could fall
through the propeller arc.
Do not start your engine in an area
containing loose gravel or sand.
The propeller may throw such material in
your face and eyes and cause injury.
For their safety, keep all onlookers
(especially small children) well back (at
least 20 feet or 6 meters) when preparing
your model for flight. If you have to carry
the model to the take-off point with the
engine running, be especially cautious.
Keep the propeller pointed away from you
and walk well clear of spectators.
Warning! Immediately after a glowplug-
ignition engine has been run and is still
warm, conditions sometimes exist whereby
it is just possible for the engine to abruptly
restart if the propeller is casually flipped
over compression WITHOUT the glowplug
battery being reconnected. Remember this
if you wish to avoid the risk of a painfully
rapped knuckle!
6
•Silencer Body
•Choke rod
•Silicone tubing
FS-26S FS-40S
INSTALLING THE GLOWPLUG
Carburetor
Install washer on glowplug and
insert carefully into cylinder-
head, making sure that it is not
cross-threaded before tightening
firmly.
BASIC ENGINE PARTS
The FS Series engines are up-to-date
overhead-valve four-stroke-cycle engines
formodel aircraft useand arethe outcome of
a long period of technical development. The
FS Series engines are produced by the
world's oldest and largest model engine
manufacturing company; a company which
also pioneered the quantity production of
model four-cycle engines.
Drive Hub
Crankcase
Silencer
Rocker Cover
INTRODUCTION
Glow plug
Washer
Accessories
•Silencer Assembly
•Choke rod
•Silicone tubing
Exhaust pipe
Propeller nut
Propeller
Washer
Cover plate
Glow plug
Fuel inlet
Breather nipple
Choke valve
7
INSTALLATION How to fasten the mounting screws.
Hardwood mounting beams
O.S. radial motor mount
(cast aluminum)
Tighten second nut firmly
down onto first nut.
Tighten this nut first.
Steel washer
3.5mm steel nuts
for FS-40S
Spring washer or
lock washer
Hardwood such as
cherry or maple.
Spring washer
3.5mm steel Allen screw
for FS-40S
Front view
CORRECT
Side view
Top surfaces are in
the same plane. Re-align the surfaces
as necessary
INCORRECT
Top surfaces are not
in the same plane. Opposite beam
Top surfaces
are not in the
same plane.
Engine does
not rest firmly.
Rigid hardwood
(e.g. maple)
At least
15mm(19/32") for FS-40S
At least 12mm
(1/2") for FS-26S
Installation in the model
A typical method of beam
mounting is shown below,left. O.S. radial motor mount
(Available as an optional extra part.
See parts list)
Make sure that the mounting beams are parallel
and that their top surfaces are in the same plane.
3mm steel nuts
for FS-26S
3mm steel screw
for FS-26S
3.5mm steel screw
for FS-40S
3mm steel Allen screw
for FS-26S
8
The FS Series engines are equipped with self-
reopening choke valves.
Cut the choke rod (supplied) to the length indicated,
then secire the rod by tightening the set screw, using
1.5mm Allen wrench (supplied), after installing the
engine.
INSTALLATION OF CHOKE ROD
Choke rod 1.5mm
Allen key
Set-screw
Choke rod
approx.
7mm approx.
2mm
Frame sides
of fuselage
NEEDLE VALVE EXTENSION
The needle-valve supplied with this engine is
designed to incorporate an extension so that, when
the engine is enclosed within the fuselage, the
needle-valve may be adjusted from the outside. Cut
the L-shaped rod supplied to the required length,
insert it into needle's centre hole and secure it by
tightening the set-screw in the needle-valve knob with
1.5mm. Allen key supplied.
Set-screw
1.5mm Allen key
The direction of the exhaust pipe may be altered in
accordance with individual installation requirements.
The angle is easily adjusted by loosening the nut that
secures the exhaust pipe to the culinder head. Use
the 10mm spanner supplied. Recheck the tightness of
the nut after the engine has been run, but take care
not to touch the exhaust-pipe as it becomes very hot.
EXHAUST PIPE ADJUSTMENT(FS-26S)
Releasing the
choke rod allows
the choke valve
to open.
9
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