O.S. engine MAX-32SX-H Series Page 31 Owner'S Instruction Manual Download | Manualshive

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Summary of Contents for MAX-32SX-H Series

Page 1: ...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 ...

Page 2: ...UT GLOW PLUGS FUEL CARBURETOR CONTROLS STARTING RUNNING IN ADJUSTMENT SUBSEQUENT READJUSTMENTS CARBURETOR CLEANLINESS ADJUSTING CHART INSTALLATION OF THROTTLE SERVO CARE AND MAINTENANCE ENGINE EXPLODED VIEW PARTS LIST CARBURETOR EXPLODED VIEW PARTS LIST THREE VIEW DRAWING O S GENUINE PARTS ACCESSORIES 2 5 6 7 8 8 8 10 10 11 12 13 17 18 20 21 22 25 26 27 28 14 17 19 29 1 ...

Page 3: ...e would respectfully request that these instructions are also passed on to its new owner 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 co...

Page 4: ... away from open flame excessive heat sources of sparks oranythingelsewhich might ignite it Do not smoke orallowanyoneelsetosmoke near to it 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 result in a serious burn Never operate your engine in an en closed space ...

Page 5: ...iately after the engine is started as the clutch will engage and you may be struck by the rotor After starting the engine carry out any needle valve readjustments after stopping the rotor by closing the throttle to the lowest r p m Stop the engine before attempting to make other adjustments to the carburettor Use an electric starter The wearing of safety glasses is also strongly recommended Press ...

Page 6: ...ition engine has been run and is still warm conditions sometimes exist whereby it is just possible for the engine to restart when turned over WITHOUT the glowplug battery being reconnected Remember this if you wish to avoid the risk of accidents Do not attempt to disassemble the recoil starter if fitted If you do so the very strong spring inside will be suddenly ejected This can be very dangerous ...

Page 7: ...types of engines large and small two stroke four stroke Wankel rotary supercharged twin nand multi cylinder four strokes and has also produced more helicopter units than any other maker worldwide Highperformance motors designed for small sized radio controlled helicopters the MAX 32SX H Series is available in a choice of three versions The standard 32SX H features ABC cylinder piston construction ...

Page 8: ...The under surfaces of all O S engine beam mounting lugs are precision machined flat and exactyly parallel to the engine s horizontal axis It is essential that the engine mounts in the model are also accurately made and aligned If they are not they will cause stress and distortion within the engine itself probably resulting in loss of performance and internal damage The recommended screws for secur...

Page 9: ...emble the recoil starter the very strong spring inside will spring out which is very dangerous 2 Front view CORRECT Side view Top surfaces are in the same plane Re align the surfaces as necessary INCORRECT Top surfaces are not in the same plane Top surfaces are not in the same plane Engine does not rest firmly BEFORE STARTING Tools accessories etc The following items are necessary for operating th...

Page 10: ...e brightness Warning Very hot Never touch the nichrome wire while the battery is connected 4 Plug wrench Used for tightening glowplug The O S long plug wrench is available as an optional accessory 5 Battery leads These are used to conduct current from the battery to the glowplug Basically two leads with clips are required but for greater conve nience twin leads with special glowplug connectors as ...

Page 11: ...ust be regarded as expendable With a glowplug engine ignition is initiated by the application of a 1 5 volt power source When the battery is disconnected the heat retained within the combustion chamber remains sufficient to keep the plug filament glowing thereby continuing to keep the engine running Ignition timing is automatic under reduced load allowing higher rpm the plug becomes hotter and app...

Page 12: ...e best quality fuels available in your country for helicopter use For the best throttle response a fuel containing 10 to 30 nitromethane is preferable Lubricants may be either castor oil or a suitable synthetic oil or a blend of both provided that they are always of top quality For consistent performance and long engine life it is essential to use fuel containing AT LEAST 18 lubricant by volume So...

Page 13: ... for the approximate best result First run the engine as received and re adjust the Mixture Control Valve only when necessary Two adjustable controls are provided on this carburetor Needle Valve Throttle Lever Rotor Guide Screw Mixture Control Valve MIxture Control Screw REALIGNMENT OF MIXTURE CONTROL VALVE In the course of making carburetor adjustments it is just possible that the Mixture Control...

Page 14: ...e the same fuel as you intend to employ for actual operation of your model Open the needle valve 1 1 2 turns 1 2 3 4 5 6 STARTING 32SX HX RING NOTE Do not choke the exhaust at this time Be sure to use a muffler pressurized fuel feed Use the same fuel as you intend to employ for actual operation of your model Open the needle valve 1 1 2 turns 1 Open the throttle fully and pull the recoil starter kn...

Page 15: ...t and simple running in procedure is required and can be carried out with the engine installed in the modle For the first few flights with a new engine i e while the engine is being run in set the needle valve for a slightly rich mixture not excessively rich as this may result in poor throttle response and cause the engine to stope About one half turn open from the nomal setting will usually suffi...

Page 16: ...gine by allowing it to idle for about 30 seconds If the engine stops advance the throttle trim lever slightly to increase the idling rpm Then open the throttle sufficiently to float the model above the ground B C lf at this time the engine is slow to pick up and produces an excess of exhaust smoke the mixture is too rich Correct this condition by turning the Mixture Control Screw clockwise lf the ...

Page 17: ...f at full throttle acceleration is poor the H I J K exhaust unduly smoky and the model fails to reach expected straight line speed the mixture is too rich and the Needle Valve setting will need to be reduced lf however after smoothly acceIerating to satisfactory high speed straight and level flight power is lost when the model is puIled up into a climb the mixture is too lean ln this case land the...

Page 18: ... characteristics SUBSEQUENT READJUSTMENTS Once the engine has been run in and the carburetor controls properly set up it should be unnecessary to alter the mixture settings except to make minor adjustments to the Needle Valve occasionally to take account of variations in climatic condisitions The use of a different fuel however particularly one containing more or less nitromethane and or a differe...

Page 19: ...d that fuel is passed through a filter when the tank is filled and that a good in line filter is installed between the fuel tank and carburettor and furthermore that this filter is frequently cleaned to remove dirt and lint that accumulates on the filter screen Finally occasionally remove the needle valve holder from the carburetor as shown in Photo and extract any remaining foreign matter that ma...

Page 20: ...r approx 10 seconds then reopen throttle to observe transition Float the model Turn the Mixture Control Screw counter clockwise Idling OK Turn the Mixture Control Screw clockwise Lean mixture Rich mixture High Speed Flight Open the Needle Valve Turn counter clockwise Lean mixture Rich mixture L M Close the Needle Valve Turn clockwise High Speed Flight OK Fine tuning of hovering mixture Turn the Ne...

Page 21: ... movement should not be more than 45 When the throttle is fully open or fully closed the throttle lever angle should not be more than 45 either side of the mid point of its travel and where it is at a 90 angle to hte pushrod otherwise throttle rotor movement may become inhibited or may even lock up Also some lubricants may affect the throttle rotor movement Please note that the throttle lever angl...

Page 22: ...onally At the end of each operating session drain out any fuel that may remain in the fuel tank Next energize the glowplug and try ot restart the engine to burn off any fuel that may remain inside the engine Repeat this procedure until the engine fails to fire Remove the glowplug and eject any remaining fuel oil residue by rotating the engine with an electric starter for 4 to 5 seconds while the e...

Page 23: ... e w q 0 9 8 7 6 5 4 3 2 1 5 2 5 1 N M3 5X5 C M2 6X7 C M2 6X12 Type of screw C Cap Screw M Oval Fillister Head Screw F Flat Head Screw N Round Head Screw S Set Screw EXPLODED VIEW MAX 32SX H 32SX HRING 22 ...

Page 24: ...G Cylinder Liner For 32SX HRING Screw Set Cover Plate Gasket Set Crankshaft Crankshaft Ball Bearing Rear Crankcase Crankshaft Ball Bearing Front Thrust Washer Propeller Nut Carburetor Retaining Screw 2pcs Carburetor Rubber Gasket Carburetor Complete Type 20C Connecting Rod Piston Pin Cylinder Piston Assembly For 32SX H Heatsink Head Description Glowplug A3 The specifications are subject to alterat...

Page 25: ...q 0 9 8 7 6 5 4 3 2 1 7 2 7 1 y 2 y 1 u C M2 6X12 N M3 5X5 F M2 6X10 N M3X8 EXPLODED VIEW MAX 32SX HXRING Type of screw C Cap Screw M Oval Fillister Head Screw F Flat Head Screw N Round Head Screw S Set Screw 24 ...

Page 26: ...0 72801100 72801102 22913010 71605300 72405000 22781411 Throttle Lever Landing Gear Mounting Plate Screw Set No 0 One way Clutch No 0 Recoil Starter Body Recoil Starter Assembly No 0 Starting Shaft Bearing Rear Housing Starting Shaft Gasket Set Crankshaft Crankshaft Ball Bearing Rear Crankcase Crankshaft Ball Bearing Front Thrust Washer Propeller Nut Carburetor Retaining Screw 2pcs Carburetor Rubb...

Page 27: ...le Valve Holder Set Screw O Ring 2pcs Needle Needle Valve Assembly Fuel Inlet Rotor Guide Screw Rotor Spring O Ring 2pcs Carburetor Body Mixture Control Valve Spring Carburetor Rotor Throttle Lever Throttle Lever Retaining Screw Throttle Lever Throttle Lever Assembly Description Code No The specifications are subject to alteration for improvement without notice 0 9 5 9 4 9 3 9 2 9 1 8 7 6 5 1 5 4 ...

Page 28: ... DRAWING Displacement Bore Stroke Practical R P M Power output Weight 5 23 cc 0 319 cu in 19 5mm 0 768 in 17 5mm 0 689 in 2 000 22 000 r p m 1 2 bhp 18 000 r p m 290g 10 23oz SX H 285g 10 06oz SX H RING SPECIFICATIONS Dimensions mm 27 ...

Page 29: ...THREE VIEW DRAWING Displacement Bore Stroke Practical R P M Power output Weight 5 23 cc 0 319 cu in 19 5mm 0 768 in 17 5mm 0 689 in 2 000 21 000 r p m 1 15 bhp 17 000 r p m 387g 13 66oz SPECIFICATIONS Dimensions mm 28 ...

Page 30: ...NKSHAFT CLAMP 3261 For 32F H SX H 61SX H RX H 71530300 3246 For 32SX H 46FX H 71530400 72200160 BOOSTER TERMINAL KIT FOR SHUTTLE SUPER FILTER O S GLOW PLUGS 843 SILENCER EXTENSION ADAPTOR EXHAUST ADAPTORS 90 degree 71608001 LONG SOCKET WRENCH WITH PLUG GRIP 71521000 L 72403050 No 8 71605100 A5 29 ...

Page 31: ...MEMO 30 ...

Page 32: ...ghts reserved Printed in Japan U N EQUALLED QUALITY PRECISION PERFORMAN C E ESTABLISHING THE STANDARDS OF EXCELLENC E 100102 TEL 06 6702 0225 FAX 06 6704 2722 6 15 3 Chome Imagawa Higashisumiyoshi ku Osaka 546 0003 Japan URL http www os engines co jp ...

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