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O.S. engine GGT15 Owner's Instruction Manual

O.S. engine GGT15 Owner's Instruction Manual

Two stroke glow gasoline engine for airplanes

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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
Remember that your engine is not a " toy ", but a
highly
efficient
internal-combustion
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.
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
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.
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.
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.
ABOUT THE ENGINE
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.
STANDARD ACCESSORIES
E-4040 Silencer Assembly
Silencer Retaining Screw
(M4x40 2pcs.)
GGT15
Two stroke glow gasoline
engine for airplanes
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.
Go outside and stay away from the
vaporized gasoline when you check the
power distribution of the glow plug attached
machine
to the glow plug igniter by looking at the
filament. Failing to do so may cause fire.
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.
NOTES
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.
ENGINE PARTS NAME
Carburetor
Type 61H
Drive Hub
Propeller Washer
Propeller Nut
Crankshaft
Pump Unit PD-08
E-4040 Silencer
Cylinder Head
Crankcase
Lock Nut
Glow Gasoline
Plug G5
Beam Mount
Cover Plate
Install a top-quality propeller of the diameter and
pitch specified for the engine and aircraft.
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.
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.
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.
INSTALLATION
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.)
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
2.
rotating the rear part of the silencer.
Re-tighten the assembly screw, followed by the locknut.
3.
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.

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Summary of Contents for O.S. engine GGT15

  • Page 1 GGT15 is a glow gasoline engine ignited by a glow Also, use the Nord Lock Washers (optional extra) plug but using gasoline. So no ignition module and...
  • Page 2 For plumbing use TYGON F-4040 (Yellow color) or Since the GGT15 is intended to be started with an tank (e.g.via an O.S.'Super-Filter' Code No.72403050) strong nitrile rubber of more than 2.4-3.2mm ID and...
  • Page 3 RMP is Please pay attention to the matter described below The GGT15 cannot be started by flipping a propeller. obtained is the optimum mixture control valve to ensure that your engine serves you well in Be use to use an electric starter to start the engine.
  • Page 4 178 g / 6.28 oz. (Silencer) 105.4 103.3 24.3 UNF5/16-24 42.6 35.8 66.8 39.4 6-15 3-Chome Imagawa Higashisumiyoshi-ku Osaka 546-0003, Japan TEL. (06) 6702-0225 http://www.os-engines.co.jp FAX. (06) 6704-2722 031400 Copyright 2014 by O.S. Engine Mfg. Co., Ltd. All rights reserved. Printed in CHINA.