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 2-5 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 model, radio control equipment, etc.,
are accessible for checking at the same time.
61LX-H
MAX-
SERIES
RING
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Table of Contents
Related Manuals for O.S. engine MAX-61LX
Summary of Contents for O.S. engine MAX-61LX
- Page 1 61LX-H SERIES MAX- RING It is of vital importance, before attempting to operate your engine, to read the general 'SAFETY INSTRUCTIONS AND WARNINGS' section on pages 2-5 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.
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Page 2: Table Of Contents
CONTENTS SAFETY INSTRUCTIONS AND WARNINGS SUBSEQUENT READJUSTMENTS ABOUT YOUR O.S. ENGINE CARBURETTOR CLEANLINESS INTRODUCTION ADJUSTING CHART BASIC ENGINE PARTS, INSTALLATION INSTALLATION OF THROTTLE SERVO BEFORE STARTING CARE AND MAINTENANCE FACTS ABOUT GLOW PLUGS FUEL ENGINE EXPLODED VIEW & PARTS LIST CARBURETTOR CONTROLS CARBURETTOR EXPLODED VIEW &... -
Page 3: Safety Instructions And Warnings About Your O.s. Engine
SAFETY INSTRUCTIONS AND WARNINGS ABOUT YOUR O.S. ENGINE 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. - Page 4 WARNINGS • • Never touch, or allow any Never operate your engine in an en- object to come into contact closed space. Model engines, like auto- mobile engines, exhaust deadly carbon- with, the rotating parts. monoxide. Run your engine only in an open area.
- Page 5 NOTES • • These engine were designed for model After starting the engine, carry out any needle- helicopters. Do not attempt to use it for any valve readjustments after stopping the rotor by other purpose. closing the throttle to the lowest r.p.m.. Stop the engine before attempting to make •...
- Page 6 NOTES • Take care that loose clothing (ties, shirt sleeves, scarves etc.) do not come into contact with the rotor. Do not carry loose objects (such as pen- cils, screwdrivers, etc.) in a shirt pocket from where they could fall through the rotor disc. •...
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Page 7: Introduction
INTRODUCTION Note: The ringed-piston MAX-61LX-H, MAX- Because of this initial tightness, a 61LX-HG(R) and MAX-61LX-HGL are high- standard electric starter may have difficulty in rotating the engine when performance, high-quality engines that cold, before it has been adequately have been developed specifically for run-in. -
Page 8: Basic Engine Parts
INSTALLING THE GLOWPLUG BASIC ENGINE PARTS Install the washer on the glowplug screw Glowplug Heatsink Head carefully into cylinder- head, making sure that it cross-threaded before tightening firmly. Glow plug Washer Carburettor INSTALLATION OF THE ENGINE Cover Plate The under-surfaces of all O.S. engine beam mounting lugs are precision machined flat and exactyly parallel to the engine's horizontal axis. -
Page 9: Before Starting
CORRECT INSTALLATION OF THE CARBURETOR As delivered, the engine has its carburetor lightly fitted into its intake boss. Secure it as follows. Loosen the retainer nut, rotate the carburetor to its correct position and press it well down into the Side view Front view intake boss, compressing the rubber gasket as... - Page 10 2 Glowplug 4 Plug wrench O.S. No.8 glowplug is installed in the engine. Used for tightening glowplug. The O.S. long plug wrench is available 3 Glowplug battery as an optional accessory. The power source for heating the glowplug may be For tightening glowplug either a large heavy-duty 1.5volt dry cell, or preferably,...
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Page 11: Facts About Glowplugs
7 Fuel container filter FACTS ABOUT GLOWPLUGS Fuel Can Filter Fit a filter to the outlet tube of Since the compatibility of glowplug and fuel may have your refuelling container to a marked effect on performance and reliability, it may prevent entry of foreign matter be worthwhile to choose the R/C type plug found into the fuel tank... -
Page 12: Fuel 10
However, plug life can be extended and engine FUEL performance maintained by careful use, i.e.: Select, the most suitable fuel from among the best • Install a plug suitable for the engine. quality fuels available in your country for helicopter •... -
Page 13: Carburetor Controls
This carburetor is not fitted with a throttle stop CARBURETOR CONTROLS screw. Instead, idling speed is adjusted by means With a fixed-wing model, power failure is rarely a of the throttle trim lever on the transmitter. serious threat to the safety of the aircraft since it can BASIC POSITION OF MIXTURE CONTROL VALVE usually glide down to a safe landing. -
Page 14: Starting 13
Checking the rotating direction of the starter STARTING Make sure that the starter rotates Be sure to use a muffler pressurized fuel feed. Use to the direction shown in the the same fuel as you intend to employ for actual sketch. - Page 15 Starting Reminder! Connect the battery to the glowplug and start the Never touch, or allow any object to engine by applying the starter. When started, come into contact with, the rotating ro- switch off the starter and withdraw the starting tor.
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Page 16: Running-In, Setting Up, 15
SETTING UP, STARTING AND ADJUSTMENT RUNNING-IN ("Breaking-in") Fit a conventional exhaust-pressurized fuel system All internal-combustion engines benefit, to some and select the same fuel as you intend to use for degree, from extra care when they are run for the first flying the model. - Page 17 Having provisionally set the idle mixture, the next NOTE: step is to adjust the mixture for hovering flight. If throttle response is poor, or the engine stops on restarting, due to a temporarily over-rich mixture, Hover the model and actuate the throttle to first try pinching the fuel delivery tube for one or two observe response over the medium speed range.
- Page 18 achieve satisfactory mid-range throttle response, Now adjust the Needle Valve to achieve the best but such readjustments should onIy be made performance when the model is flying at full throttle. within the range where idling reliability and high- lf, at full throttle, acceleration is poor, theexhaust speed performance are not unduly compromised.
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Page 19: Subsequent Readjustments
CARBURETOR CLEANLINESS SUBSEQUENT READJUSTMENTS Once the engine has been run-in and the carburetor The correct functioning of the carburetor depends on controls properly set up, it should be unnecessary to its small fuel orifices remaining clear. The minute alter the mixture settings, except to make minor particles of foreign matter that are present in any fuel adjustments to the Needle Valve occasionally, to take can easily partially obstruct these orifices and upset... -
Page 20: Adjusting Chart
ADJUSTING CHART Open the Needle Valve11/2 turns from the fully closed position. Make sure that the Mixture Control Valve is at the factory setting. Start the engine Warm up the engine Observe the mixture condition while "floating" the model Rich mixture Lean mixture Turn the Mixture Turn the Mixture... -
Page 21: Installation Of Throttle Servo
INSTALLATION OF THROTTLE SERVO After the engine in the helicopter, please observe the following recommendations when linking the throttle Servo output arm servo to the carburetor. Throttle arm Locate the servo so that its output arm and the throttle pushrod are, as closely as possible, directry in line with Throttle control rods A and B should be of equal length. -
Page 22: Care And Maintenance
CARE AND MAINTENANCE Note: O.S. 'Super-Filters' (large and small)are available, as Do not inject after-run oil into the carburetor as this may optional extras, to deal with this problem. cause the O-rings inside the carburettor to deteriorate. One of these filters, fitted to the outlet tube inside your refueling container, will prevent the entry of These procedures will reduce the risk of starting foreign material into the fuel tank. -
Page 23: Engine Exploded View & Parts List 22
EXPLODED VIEW C.M3.5X15 1 -A C.M3.5X8 8 -1 r -A Type of screw Cap Screw M Oval Fillister-Head Screw Flat Head Screw N Round Head Screw S Set Screw... -
Page 24: Engine Parts List
ENGINE PARTS LIST Description Code No. 2 7904 200 Heatsink Head (For 61LX-H/HG(R)) 2 7904 210 Heatsink Head (For 61LX-HGL) 2 7963 100 Cylinder Liner 2 6703 404 Piston Ring Piston 2 7903 200 Piston Pin 2 6606 008 2 7917 000 Piston Pin Retainer (2pcs.) 2 7965 000 Connecting Rod... - Page 25 60G/60H CARBURETOER PARTS LIST & EXPLODED VIEW Code No. Description 2 7381 410 Throttle Lever Assembly C.M3X8 2 2826 131 Throttle Lever Fixing Screw (2pcs.) 2 7982 200 Carburetor Rotor 2 7982 300 Mixture Control Valve Assembly (For 60G) 1 -1 2 7982 310 Mixture Control Valve Assembly (For 60H) 2 7881 810...
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Page 26: Three View Drawing
THREE VIEW DRAWING Dimensions(mm) SPECIFICATIONS 9.95 cc ( 0.607 cu.in. ) Displacement 24.0mm ( 0.945 in. ) Bore 22.0mm ( 0.866 in. ) Stroke 2,000 18,000 r.p.m. Practical R.P.M. 2.0 bhp / 16,000 r.p.m. Power output 541g(19.1oz.) (61LX-H) Weight 645g(22.8oz.) (61LX-HGL) -
Page 27: O.s. Genuine Parts & Accessories
O.S. GENUINE PARTS & ACCESSORIES DRIVE HUB (27708010) CRANKSHAFT CLAMP 3261 BUBBLESS WEIGHT For 61LX-H (71530300) (71531000) O.S. GLOW PLUGS No.8 (71605100) (71608001) LOCK WASHER(10set) LONG SOCKET WRENCH SUPER FILTER WITH PLUG GRIP (71521000) (72403050) (55500003) ( L ) - Page 28 6-15 3-Chome Imagawa Higashisumiyoshi-ku Osaka 546-0003, Japan TEL. (06) 6702-0225 FAX. (06) 6704-2722 URL : http://www.os-engines.co.jp Copyright 2000 by O.S.Engines Mfg. Co., Ltd. All rights reserved. Printed in Japan. 070101...