Table of Contents
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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 2-6 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.
CONTENTS
STARTING THE ENGINE &
2-6
7-9
10
11-14
ENGINE EXPLODED VIEWS & PARTS LIST
15
CARBURETOR EXPLODED VIEWS& PARTS LIST
16
17
18-20
MEMO
1
21-25
26-27
28-29
30-31
32-33
34
35
36
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Table of Contents
Related Manuals for O.S. engine 49-PI II
Summary of Contents for O.S. engine 49-PI II
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Page 1: Table Of Contents
It is suggested that any instructions supplied with the aircraft, radio control equipment, etc., are accessible for checking at the same time. CONTENTS SAFETY INSTRUCTIONS AND WARNINGS STARTING THE ENGINE & ABOUT YOUR O.S. ENGINE RUNNING-IN ('Breaking') 21-25 ABOUT THE ENGINE TROUBLE SHOOTING WHEN THE 26-27... -
Page 2: Safety Instructions And Warnings About Your O.s. Engine
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. - Page 3 NOTES This engine was designed for model If you remove the glowplug from the engine aircraft. Do not attempt to use it for any and check its condition by connecting the other purpose. battery leads to it, do not hold the plug with bare fingers.Use an appropriate tool or a Mount the engine in your model securely, folded piece of cloth.
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Page 4: About The Engine
NOTES Adjust the throttle linkage so that the engine For their safety, keep all onlookers stops when the throttle stick and trim lever (especially small children) well back (at on the transmitter are fully retarded. least 20 feet or 6 meters) when preparing Alternatively, the engine may be stopped by your model for flight. - Page 5 Features Since this is a rotary engine designed for model application, there are some notes to Almost total freedom from vibration be followed in order to run it well for a long Relatively low noise level Pleasant sound time. Also, handling of this engine is some- specific to a rotary engine what different from that of two-stroke and Compact shape which enables easier...
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Page 6: Basic Engine Parts
BASIC ENGINE PARTS Front Housing Rotor Housing Engine Mount RE-2010 Silencer Air Funnel Glowplug TypeF Carburetor Type 21G Drive Hub Propeller washer Propeller nut FUEL BEFORE STARTING Tools, accessories, etc. The following items For this engine, use top quality are necessary for operating the engine. methanol-based model engine fuel containing more than 18% oil either GLOW PLUG... - Page 7 O.S. Non-Bubble Weight S Electric Starter and Electric Starter Starter Battery The engine is supplied with a small Required when starting sized Non-Bubble Weight. Be sure the engine. 12-Volt lead-acid battery to use it in a fuel tank installed in a model.
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Page 8: Installation Of The Standard Accessories
Warning: Model Make sure that the propeller is well Suitable model is the one designed for two- balanced. An unbalanced propeller and/or stroke 32~40 size engines. (Guide weight spinner can cause serious vibration which 2,000~2,500g) may weaken parts of the airframe or affect the safety of the radio-controlled system. -
Page 9: Mixture Controls
MIXTURE CONTROLS The Mixture Control Screw This meters fuel flow at part-throttle and idling speeds to ensure reliable operation as the Mixture Control Screw throttle is opened and closed. The Mixture Control Valve is factory set for the approximate best result. First run the engine as received and readjust the Mixture Control Screw only if Throttle Stop Screw necessary. -
Page 10: Installation Of The Engine And Fuel Tank
INSTALLATION OF THE ENGINE AND FUEL TANK Set the fuel tank position so that carburetor Use the engine mount supplied with the center line may locate at 1/3 from the tank engine to install the engine in the model. top when the model is placed horizontal. Decide the installing position. - Page 11 THROTTLE LINKAGE NEEDLE-VALVE EXTENSION The needle-valve supplied with this engine is Before connecting the throttle to its servo, designed to incorporate an extension so that, make sure that the throttle arm and linkage when the engine is enclosed within the safely clear any adjacent part of the airframe fuselage, the needle-valve may be adjusted structure, etc., as the throttle is opened and...
- Page 12 Check that the needle-valve is closed. (Do Connect battery leads to glowplug. not overtighten.) Now open the needle- Bring electric starter into contact with valve counter-clockwise 2 turns to the spinner-nut or spinner and depress starter starting setting. Switch for one to two seconds. Repeat if necessary.
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Page 13: Running-In ('Breaking')
RUNNING-IN ("Breaking-in") Install the engine with the propeller intended for your model. Run the engine for one min- For running-in, fit the engine with a well- ute with the throttle fully open, but with the balanced propeller intended for actual flight. needle-valve adjusted for rich, slow “four- Use a fuel mixture as specified. -
Page 14: Trouble Shooting When The Engine Fails To Start
TROUBLE SHOOTING WHEN THE ENGINE FAILS TO START Four key points For quick, reliable starting, the following four conditions are required. 1 Good compression. 2 Adequate "glow" at glowplug. 3 Correct mixture. 4 Sufficient electric starter rotating speed. If the engine fails to start, or does not keep running after being started, check symptoms against the following chart and take necessary corrective action. -
Page 15: Care And Maintenance
CARE AND MAINTENANCE Please pay attention to the matters Install an in-line fuel filter between the tank described below to ensure that your engine and carburetor to prevent dirt and dust in the serves you well in regard to performance, tank from entering the carburetor. -
Page 16: Engine Exploded View
ENGINE EXPLODED VIEW 14-1 N.+M3.5x5 C.M2.6x8.6 C.M2.6x7 10-1 10-2 C.M3x25 25-1 C.M2.6x5 C.M3x8 Type of screw C...Cap Screw M...Oval Fillister-Head Screw F...Flat Head Screw N...Round Head Screw S...Set Screw... - Page 17 ENGINEN PARTS LIST Description Code No. 23210007 Propeller Nut 23209003 Propeller Washer 41612020 Drive Hub 41826005 Woodruff Key 41625000 Shaft Spacer 41622020 Housing Assembly Screw Set 41601000 Front Housing 41614010 Crankshaft Ball Bearing (F) 41614100 Front Bearing Retainer 41604010 Eccentric Shaft 41602020 Rotor Housing Assembly 41820001...
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Page 18: Carburetor Exploded View
CARBURETOR EXPLODED VIEW S.M3x3 N.+M3.5x5 S.M3x3 Type of screw C...Cap Screw M...Oval Fillister-Head Screw F...Flat Head Screw N...Round Head Screw S...Set Screw CARBURETOR PARTS LIST Code No. Description 41618600 Mixture Control Screw 41618410 Throttle Lever Assembly 41618200 Carburetor Rotor Air Funnel 41618300 22681320 Throttle Stop Screw... -
Page 19: O.s. Genuine Parts & Accessories
O.S. GENUINE PARTS & ACCESSORIES SILENCER EXTENSION SPINNER NUT LONG PROPELLER ADAPTORS SET NUT SETS 1/4"-28(L) (23024009) (41651300) (73101000) Adaptor L12 Adaptor L20 M3.5x6 (4pcs.) LONG SOCKET WRENCH SUPER FILTER CAP SCREW SETS SPRING WASHER (10pcs./sets) WITH PLUG GRIP (20pcs.) ( L ) (72403050) (71521000) - Page 20 6-15 3-Chome Imagawa Higashisumiyoshi-ku Osaka 546-0003, Japan TEL. (06) 6702-0225 URL : http://www.os-engines.co.jp FAX. (06) 6704-2722 Copyright 2006 by O.S.Engines Mfg. Co., Ltd. All rights reserved. Printed in Japan. 60091860 090600...