O.S. Engines GGT15 User Manual

Ggt15, Warnings

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ABOUT THE ENGINE

STANDARD ACCESSORIES

ENGINE PARTS NAME

Beam Mount

Drive Hub

INSTALLATION

Glow Gasoline

Plug G5

Cylinder Head

Crankcase

Cover Plate

Crankshaft

Propeller Washer

E-4040 Silencer

Propeller Nut

Lock Nut

It is suggested to use an engine mount as heavy and

rigid as possible for highest performance and safe

running. Install the engine on a mount using at least

3mm steel screws, such as Allen type, with locknuts,

for bolting the engine to the bearers.

Also, use the Nord Lock Washers (optional extra)

and other anti-loosening washers or apply locking

agent.

Be sure that there is sufficient air intake and outlet

area on the model for engine cooling to avoid

overheating. (Pay careful attention to the cooling

since a gasoline engine generates more heat than an

alcohol based glow engine.)

GGT15

600930400000

It is of vital importance, before attempting to operate your

engine, to read the general 'SAFETY INSTRUCTIONS

AND WARNINGS' in the following section 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.

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.

WARNINGS

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.

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.

To stop the engine, fully close the throttle valve via

the transmitter to shut off the fuel supply. Otherwise

there is a possibility of injury.

Do not crank the engine right after the engine is

stopped because the engine may start with a crank

even when the glow plug is not ignited. Failing to do

so may cause injury.

Connect the throttle linkage so that the engine can

be stopped via radio operation.

Always check the throttle linkage.If it is disconnected,

throttle action becomes uncontrollable, which may

result in a serious accident.

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.

Use an electric starter for this engine. The wearing of

safety glasses is also strongly recommended.

If you try hand starting, be sure to use a chicken stick

or heavy glove. Never attempt to start the engine

with a bare hand.

Be sure to carry out adjustments of the high speed

needle and slow speed needle after stopping the

engine.

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.

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.

Install 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 washer and

propeller installing screws using the correct size

wrench. Always check the tightness of propeller

installing screws and retighten them, if necessary,

before starting the engine. Also, check the tightness

of all the screws and nuts before restarting the

engine.

Install a top-quality propeller of the diameter and

pitch specified for the engine and aircraft.

Any propeller requires utmost attention to handle.

Be sure to follow the instruction manual supplied with

a propeller.

This engine was designed for model aircraft.

Do not attempt to use it for any other purpose.

Start the engine only after installing it in the model.

Do not start the engine before installing it in the

model, or there is a possibility of injury.

Be sure to use an effective silencer (muffler).

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.

Mount the engine in your model securely, following

the manufacturers’ recommendations.

For their safety, keep all onlookers (especially small

children) well back (at least 10 meters) when

preparing your model for flight.

NOTES

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 results in a serious

burn.

Observe the laws and regulations in each

country and district concerning the usage,

transportation and storage of gasoline. Ask

details at the fire station in each district.
Never operate your engine in an enclosed space.

Model engines, like automobile engines, exhaust

deadly carbon-monoxide. Run your engine only

in an open area.
Do not operate the engine nor model alone, or

there is a possibility of injury.

Carry out the mixing of the gasoline and

oil outdoors or in a well ventilated place

away from any source of fire to prevent the

possibility of a fire.
Refill the fuel tank only after the engine is

well cooled down, or there is a danger of

fire.

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.
Gasoline is poisonous. Do not allow it

come into contact with the eyes or mouth.

Always store it in a clearly marked

container in a cool and dark place and out

of the reach of children. There is a

possibility that it may damage your health.
Gasoline is highly flammable. Keep it away

from an open flame, excessive heat,

sources of sparks, or anything else which

might cause it to ignite. Do not smoke or

allow anyone else to smoke near to it.

E-4040 Silencer Assembly

Silencer Retaining Screw

(M4x40 2pcs.)

Pump Unit PD-08

Carburetor

Type 61H

INSTALLATION OF SILENCER

Secure the silencer to the engine by means of two

retaining screws supplied after the engine is securely

mounted on a model.
The exhaust outlet of the silencer can be rotated by 90

degrees in the following manner.

Loosen the locknut of the silencer and assembly screw.

1.

Set the exhaust outlet at the required position by

rotating the rear part of the silencer.

Re-tighten the assembly screw, followed by the locknut.

3.

2.

It is recommended to seal the fitting faces of engine

exhaust and silencer with liquid gasket. Gasket at the

joint part of the silencer will lose its sealing effect in a

long time running. In this case, replace the gasket or

apply liquid gasket to the joint.

How to adjusting the carburetor of this engine is

completely different from that for the conventional glow

engine’s carburetor. Please study the CARBURETOR

ADJUSTMENT section so as to familiarize yourself

with the controls and other features.

GGT15 is a glow gasoline engine ignited by a glow

plug but using gasoline. So no ignition module and

battery is required.

This engine is designed for experienced fliers.

Beginners and newcomers should not use this engine.

The engine unit, silencer and carburetor are

specially designed.

The normal rotation direction of the engine is

counterclockwise facing to the propeller.

It offers broad power characteristics suitable for

sport flight as well as acro flight.

The large and dense cooling fins ensure sufficient

cooling against overheating.

We apply a “G5” glow plug to GGT15, which is

exclusively developed for Glow Gasoline engines.

Buy only the same glow plug when you replace it to

the new one due to a break or deterioration. The

conventional glow plugs for alcohol based glow

engines such as No.6 (A3), No.7, No.8, No.10 (A5)

are not applicable to GGT15.

The supplied E-4040 silencer develops very efficient

silencing.

Two stroke glow gasoline

engine for airplanes

Go outside and stay away from the

vaporized gasoline when you check the

power distribution of the glow plug attached

to the glow plug igniter by looking at the

filament. Failing to do so may cause fire.

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