Os-engines 91SZ-H PS Hyper Manual de usuario

It is of vital importance, before attempting to operate your engine, to read the general 'SAFETY INSTRUCTIONS AND WARNINGS' section on pages

18CARBURETOR CONTROLSWith a fixed-wing model, power failure is rarely a serious threat to the safety of the aircraft since it can usually glide down t

20ABOUT THE PUMP SYSTEMCARE OF FUEL PUMP AND REGURETORNEVER disassemble the fuel pump or pressure regulator. Their original performance may not be res

22JAPANSilencerFuel tankPumpFuel Stopper (commercially available)Fuel Filter (commercially available)When an engine r.p.m. control equipment (generall

246.PrimingWithout energizing the glowplug, open the throttle a little from the idle position. Turn the engine over using the starter until the fuel i

26The general course of adjustment procedure is shown in the ADJUSTING CHART and is correct for a fuel containing 20% lubricant and 15-30% nitromethan

28Now re-check hovering performance It may be found that (with the High-Speed Needle Valve now set for optimum full-throttle performance) hovering wil

30CARBURETOR CLEANLINESSThe correct functioning of the carburetor depends on its small fuel orifices remaining clear. The minute particles of foreign

31ADJUSTING CHARTStart the engineWarm up the engineObserve the mixture condition while "floating" the modelTurn the Idle MixtureControl Scre

32INSTALLATION OF THROTTLE SERVOServo output armThrottle armAfter the engine is installed in the helicopter, please observe the following recommendati

34TROUBLE SHOOTINGSymptomCauseCorrective actionEngine fails to fire.Fuel tank is empty.Fuel not reaching the engine.Fill the tank with fuel and repeat

!!2Remember that your engine is not a "toy", but a highly efficient internal-combustion machine whose power is capable of harming you, o

36SymptomCauseCorrective actionSymptomCauseCorrective actionUnstable idleUnsuitable glowplugUse suggested glowplug in the instructions.Unsuitable fuel

38ENGINE EXPLODED VIEWType of screw C…Cap Screw M…Oval Fillister-Head ScrewF…Flat Head Screw N…Round Head Screw S…Set Screw ＊C.M3x151234567891011

40CARBURETOR EXPLODED VIEWType of screw C...Cap Screw M...Oval Fillister-Head ScrewF...Flat Head Screw N...Round Head Screw S...Set ScrewC.M3x811-

42(L) (72403050)(71705000) (55500003)(71608001)No.8(71605100)A5(27708010)(27708200)(71530510)91(71521000)M4LONG SOCKET WRENCH WITH PLUG GRIPSUPER FIL

44MEMOC Copyright 2006 by O.S.Engines Mfg. Co., Ltd. All rights reserved. Printed in Japan.60091750 030600TEL. (06) 6702-0225FAX. (06) 6704-27226

!4NOTES•••••This engine was designed for model helicopters. Do not attempt to use it for any other purpose.Mount the engine in your model securely,

6Notes on installing cooling fan and clutchDo not use a tool which locks piston when installing a cooling-fan and clutch, or top of the piston may b

8Note on heating the glow plug The heatsink head on the engine is treated with Alumite which does not conduct current. Therefore, when heating a glow

10Items necessary for startingTools, accessories, etc.The following items are necessary for operating the engine.BEFORE STARTINGGlow PlugO.S. No.8 is

12TOOLSScrewdriverNecessary for engine installation.1.5mm, 2mm, 2.5mm, 3mmNecessary for carburetor adjustments.No.1, No.2, etcPhillips ScrewdriverNo.1

14JAPANINSTALLATION OF THE CARBURETOR1.2.Retainer screwCarburetor RubberGasket0.2mm gapCarburetor RubberGasketINSTALLATION OF THE STANDARD ACCESSORIES

16INSTALLATION OF THE ENGINEThe under-surfaces of all O.S. engine beam mounting lugs are precision machined flat and exactyly parallel to the engine&a