O.S. Engines FS-200S User Manual

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It is of vital importance, before attempting to operate your engine, to read the general

'SAFETY INSTRUCTIONS AND WARNINGS'

section on pages 2-4 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 INSTRUCTIONS AND WARNINGS ABOUT YOUR O.S. ENGINE

NOTES WHEN APPLYING AN ELECTRIC STARTER

ABOUT THE ENGINE

ENGINE PARTS NAME

RELOCATION OF CARBURETOR CONTROLS

FUEL TANK & LINES

INSTALLATION

EXHAUST HEADER PIPE & SILENCER

PROPELLER

FUEL

CONTENTS

MIXTURE CONTROLS

STARTING

RUNNING-IN ("Breaking-in")

MAINTENANCE

ENGINE EXPLODED VIEW

ENGINE PARTS LIST

CARBURETOR EXPLODED VIEW & PARTS LIST

O.S. GENUINE PARTS & ACCESSORIES

ENGINE THREE VIEW DRAWINGS

2-4

10-11

13-14

19-21

22-23

GLOWPLUG

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 or abused. 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.

WARNINGS

These cover events which might involve serious ( in extreme circumstances, even fatal ) injury.

NOTES

These cover the many other possibilities, generally less obvious sources of danger, but which, under certain circumstances, may also cause damage or injury.

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

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 poisonous. Do not allow it to come into contact with the eyes or mouth. Always store it in a clearly marked container and out of the reach of children.

Model engine fuel is also highly flammable. Keep it away from an open flame, excessive heat, sources of sparks, or anything else which might ignite it. Do not smoke or allow anyone else to smoke, near to it.

Never operate your engine in an enclosed space. Model engines, like automobile engines, exhaust deadly carbonmonoxide. Run your engine only in an open area.

Model engines generate considerable heat. Do not touch any part of your engine until it has coole d. Contact with the mu ffler(silencer), cylinder head or exhaust header pipe, in particular, may result in a serious burn.

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' recommendations, using appropriate screws and locknuts.

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.

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. Also, check the tightness of all the screws and nuts before restarting the engine.

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.

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 in any way, unless you are highly experienced in tuning propellers for specialized competition work such as pylon-racing.

Use an electric starter for this engine. The wearing of safety glasses is also strongly recommended.

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 carburetor.

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!

NOTES

NOTES WHEN APPLYING AN ELECTRIC STARTER

Do not over-prime. This could

cause a hydraulic lock and

damage the engine on application

of the electric starter.

If over-primed, remove glowplug,

close needle-valve and apply

starter to pump out surplus fuel.

Cover the head with a rag to

prevent pumped out fuel from

getting into your eyes.

ABOUT THE ENGINE

STANDARD ACCESSORIES

Needle Valve Extension Cable Set

This is an overhead valve four stroke cycle engine for model aircraft use. This engine has a largest displacement of 32.4cc in the FS series and is suitable for scale and sport models.

The engine is equipped with an easy to adjust 80N carburetor which can be reversed 180° and supplied with a F-6010 silencer which produces the milder four stroke sound.

F-6010 Silencer Assembly

Glowplug TypeF

ENGINE PARTS NAME

Rocker Cover

Glow Plug TYPE F

Lock Nut

Drive Hub

Crankcase

Beam Mount

Cover Plate

Exhaust Header Pipe

F-6010 Silencer Body

Cylinder Head

Carburetor Type 80N

Intake Manifold

Propeller Washer

Propeller Nut

Exhaust Header Pipe Nut M16

N.+M3x22

RELOCATION OF CARBURETOR CONTROLS

Carburetor Retaining Screw

Intake Manifold

Carburetor Retaining Screw

2.5x5xL85

Remove the carburetor retaining screws and remove the silicone tube between the carburetor and cover plate. Then, pull out the carburetor gently from the intake manifold.

Rotate the carburetor 180°and insert on the intake manifold straight and gently. Do not force at an angle or the O ring inside the carburetor may be damaged.

Re-install the retaining screws. Then, connect the carburetor and cover plate with a new silicone tube of

2.5mm inner dia and 5mm outer dia 85mm in length cut from commercially available tubing.

Commercially available silicone tube

Pull out the carburetor gently.

FUEL TANK & LINES

Make sure that the tank is well rinsed out with methanol or glow fuel before installation and that the pickup weight is well clear of the bottom of the tank when held vertically.

For plumbing, use heavy duty silicone tube of 2.5mm inner dia and 5mm outer dia.

The suggested fuel tank size is 500cc or 14 oz. This will give approximately 10 minutes running time when some part-throttle operation is included.

Locate the fuel tank so that the center line of the tank is 10 to 15mm below the center line of the needle-valve.

Approx. 15mm

Approx. 10-15mm

needle-valve Center Line

Fuel Tank Center Line

Locate the fuel tank as close to the engine as possible

to minimize fuel level variation.

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