O.S. engine MAX 140RX FI Owner'S Instruction Manual Download Page 2

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SAFETY INSTRUCTIONS AND
WARNINGS ABOUT YOUR O.S. ENGINE

CONTENTS

INTRODUCTION, FEATURES

BASIC ENGINE PARTS

CONNECTING WITH THE EC-1

EC-1 DISPLAYS AND EXPLANATIONS

LIST OF 140RX-FI USAGE CONDITIONS

INSTALLATION PROCEDURE

LINKAGE AND INITIAL SETTINGS

ENGINE STARTING AND
AIR-FUEL MIXTURE ADJUSTMENT

ENGINE STARTING

FLIGHT ADJUSTMENT

GLOW PLUG

CARE & MAINTENANCE

TROUBLESHOOTING

THREE VIEW DRAWING &
GENUINE PARTS & ACCESSORIES

EXPLODED VIEW

PARTS LIST

Summary of Contents for MAX 140RX FI

Page 1: ...ontained 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 ...

Page 2: ...C ENGINE PARTS CONNECTING WITH THE EC 1 EC 1 DISPLAYS AND EXPLANATIONS LIST OF 140RX FI USAGE CONDITIONS INSTALLATION PROCEDURE LINKAGE AND INITIAL SETTINGS ENGINE STARTING AND AIR FUEL MIXTURE ADJUSTMENT ENGINE STARTING FLIGHT ADJUSTMENT GLOW PLUG CARE MAINTENANCE TROUBLESHOOTING THREE VIEW DRAWING GENUINE PARTS ACCESSORIES EXPLODED VIEW PARTS LIST 1 ...

Page 3: ... any object to come into contact with the rotating propeller and do not crouch over the engine when it is running A weakened or loose propeller may disintegrate or be thrown off and since propeller tip speeds with powerful engines may exceed 600 feet 180 metres per second it will be understood that such a failure could result in serious injury see NOTES section relating to propeller safety Model e...

Page 4: ...sary before restarting the engine particularly in the case of four stroke cycle engines A safety locknut assembly is provided Always use it This will prevent the propeller from flying off in the event of a backfire even if it loosens If you fit a spinner make sure that it is a precision made product and that the slots for the propeller blades do not cut into the blade roots and weaken them Discard...

Page 5: ...The propeller may throw such material in your face and eyes and cause injury For their safety keep all onlookers especially small children well back at least 20 feet or 6 meters when preparing your model for flight 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 Warning Im...

Page 6: ...er Amount of Fuel at all Times Easier starting Greater stability during idling Excellent linearity and response relative to stick operation Simple Adjustment Using Dials on the Transmitter Air fuel mixture at medium and high speeds can be safety and easily adjusted from the transmitter Adjustments can be made while on the ground and during flight Stable Supply of Fuel at all Times Pressurized fuel...

Page 7: ...EC 1 abbreviated as simply EC 1 The EC 1 transmits fuel injection signals to the injector to ensure the proper amount of fuel injection based on basic fuel injection data that has been previously entered and constantly changes wuth position of throttle stick In addition engine speed and engine temperature during operation are displayed on the liquid crystal display Y harness Fuel Filter Check Valv...

Page 8: ... key DATA 2 Function key backward FANC 1 Function key forward FANC LCD contrast Turning to the right darker turning to the left lighter 2 Injection Trim Input Terminal AUX TRIM Connect a spare channel for dial use of the receiver e g channel 7 to the AUX TRIM terminal Use the separately sold extension cord if the wiring cords are too short 3 Injector Output Terminal Connect the injector connector ...

Page 9: ...ensor is not connected TmC 0 The amount of injection trim TmD amount of trim during ATL when the throttle stick is fully open while using the slowest position as the origin is displayed TmD ATL TmD ATL Adjustments in injection volume can be made with the injection trim adjustment dial spare channel dial on the transmitter This sets the trim mode of fuel injection There are two methods of adjusting...

Page 10: ...ter Lo full slow TmL is adjusted on the TRL menu displayed following the function menu Lo Mi Hi 1 2 3 4 5 6 7 8 9 TRL 0 This refers to the idle injection volume adjustment trim and the initial value 0 is displayed Pressing the data key increases the injection volume while pressing the data key decreases injection volume The flow slow injection adjustment volume is displayed as the adjustment volum...

Page 11: ...o ensure there is no contact between the injector temperature sensor and rotation sensor with the airframe List of 140RX FI Usage Conditions Part Manufacturer Remarks Exhaust manifold Tuned silencer Glow plug Propeller O S O S O S Commercially available high quality product Mid range engine speed should be approximately 6 500 rpm Maximun speed should be between 7 300 and 8 000 rpm Fuel Commerciall...

Page 12: ...cts A manifold exclusively for OS use is available Make sure air flows smoothly by giving consideration to the air intake and outlet so that warm air does not accumulate in the engine and muffler cowling In the case of using another manifold make sure that the inner diameter and length are the same as those of the OS manifold A tuned silencer is available for use with the OS MAX 140RX and 140RX FI...

Page 13: ...xpo channel and so forth to off 0 and set the throttle trim in the center Align the throttle stick on the transmitter at the center position as shown in the figure Accurately align the throttle servo and air valve sections as shown in the figure Vertical position of air valve horn Rotor mark is at the position of the center mark on the body 90 relative to the throttle linkage rod Throttle opening ...

Page 14: ...r to the full slow position and then press either the data key or data key once The display changes from Lmt Low to Lmt High Next move the throttle stick to the full high position and press either the data key or data key once Lmt Low is displayed Repeatedly move the throttle stick between the slow and fully high positions and confirm the display of the mark This completes the setting procedure Th...

Page 15: ... the throttle trim so that engine speed at full slow stabilizes in the vicinity of 1 800 rpm 3 There is hardly any need to adjust fuel injection volume during full slow The initial fuel injection volume can be used without modification unless engine speed is especially unstable If engine speed is unstable press the function key on the EC 1 and display TRL 0 When desiring to make the air fuel mixtu...

Page 16: ...ation can be used as flight data This data is erased when the power is turned off Maximum Temperature Display Maximum Engine Speed Display Flight Adjustment The next step is to take the airplane on an actual flight The Fine adjustment mode is used for making flight adjustments Switch the ATL to Fine Although this adjustment has already been made recheck the limit Lmt Low and marks and whether they...

Page 17: ...ep 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 appropriately fires the fuel air charge earlier conversely at reduced rpm the plug become cooler and ignition is retarded Once adjustment has been completed when the airplane is flown again simply recall the TMD menu by pressing ...

Page 18: ...r the engine with the starter several times In order to maintain the engine in the optimum state it is important to vent any residual gas generated during engine operation as quickly as possible In addition since this engine uses a manifold and tuned silencer residual gas may be present in these components as well It is recommended to remove the tuned silencer after use and store it Connectors and...

Page 19: ...sponse is lost this indicates that there is too much fuel being supplied to the engine Try adjusting TmL or TmM in the direction Is the air control linkage to weak so that the operation of the air valve either stops or is delayed relative to the operation of the servo Try using a thicker component for the linkage Is the carburetor operating Check the carburetor retainer Are the rubber dampers of t...

Page 20: ...04cu in 32 0mm 1 260in 28 6mm 1 126in 1 800 10 000r p m 3 5bhp 9 000r p m 807g 28 5oz Displacement Bore Stroke PracticalR P M Output Weight Specifications THREE VIEW DRAWING BUBBLESS WEIGHT SUPER FILTER L LONG SOCKET WRENCH WITH PLUG GRIP O S GLOW PLUG TYPE F O S GENUINE PARTS ACCESSORIES T 6010 TUNED SILENCER EXHAUST HEADER PIPE 5 16 M5 LOCK NUT SET 19 ...

Page 21: ...2 1 8 1 t 5 C M4X10 C M3 5X18 0 1 r y u i o p 1 2 3 4 5 6 C M3X8 C M2 6X8 7 ENGINE INJECTOR AIR VALVE EXPLODED VIEW Type of screw C Cap Screw M Oval Fillister Head Screw F Flat Head Screw N Round Head Screw S Set Screw 20 ...

Page 22: ...sket Set Crankshaft Crankshaft Ball Bearing Rear Carburettor Retainer Crankcase Crankshaft Ball Bearing Front Thrust Washer Woodruf Key Drive Hub Lock Nut Set Injector Air Valve Set 70c Cylinder Liner Connecting Rod Piston Pin Retainer Piston Pin Piston Piston Ring Cylinder Head Description Code No ENGINE PARTS LIST The specifications are subject to alteration for improvement without notice INJECT...

Page 23: ...MEMO 22 ...

Page 24: ...rights reserved Printed in Japan U N EQUALLED QUALITY PRECISION PERFORMAN C E ESTABLISHING THE STANDARDS OF EXCELLENC E TEL 06 6702 0225 FAX 06 6704 2722 6 15 3 Chome Imagawa Higashisumiyoshi ku Osaka 546 0003 Japan 080101 http www os engines co jp ...

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