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O.S. engine MAX-61SX-H RING WC Series, Owner'S Instruction Manual

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O.S. engine MAX-61SX-H RING WC Series Owner'S Instruction Manual Download Page 30

The specifications are subject to alteration for improvement without notice.

MAX-

61RX-HG/HGL

RING

"WC" ENGINE PARTS LIST 

Screw Set

Cover Plate

Gasket Set

Crankshaft

Crankshaft Ball Bearing(Rear)

Crankcase

Crankshaft Ball Bearing(Front)

Thrust Washer

Propeller Nut

Carburetor Retainer Assembly

Carburetor Complete  60B

Connecting Rod

Piston Pin

Cylinder Liner

Heatsink Head (For 61SX-HG)

Code No.

Description

Piston Ring

Piston

Piston Pin Retainer

60B Thermo insulator

Glow Plug No.8

No.

1

1

-A

2
3
4
5
6
7
8
9
0
-
=
q
w
e
r
t
y
u
i

27904300

27904210

27953100

26703404

27923200

27106007

27917000

27905000

27981010

27984900

23210007

23009006

27720000

26731002

27981710

27941000

27930000

27952010

27914000

27927000

27913000

71608001

Heatsink Head (For 61SX-HGL)

Propeller Washer

29

Summary of Contents for MAX-61SX-H RING WC Series

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 pla...

Page 2: ...BOUT GLOW PLUGS FUEL CARBURETOR CONTROLS STARTING RUNNING IN ADJUSTMENT SUBSEQUENT READJUSTMENTS CARBURETTOR CLEANLINESS ADJUSTING CHART INSTALLATION OF THROTTLE SERVO CARE AND MAINTENANCE ENGINE EXPL...

Page 3: ...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 ac...

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 par...

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 t...

Page 6: ...least 20 feet or 6 metres 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 Hold the rotor securely and keep wel...

Page 7: ...nvert the engine and eject surplus fuel from the combustion chamber Note The MAX 61SX H RING WC is an up rated version of the MAX 61SX H RING helicopter engine It is aimed at FAI World Championship he...

Page 8: ...carburetor lightly fitted into its intake boss Secure it as follows INSTALLATION OF THE CARBURETOR Retainer screw Carburetor Rubber Gasket 0 2mm gap Loosen the retainer screw rotate the carburetor to...

Page 9: ...STALLATION OF THE ENGINE 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 mount...

Page 10: ...ness Lower voltage to reduce 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 a...

Page 11: ...an electric starting motor is driven into the main body of a helicopter to turn the engine Silicone tube 10 Electric starter and starter battery An electric starter is recom mended for starting 6 Fuel...

Page 12: ...fe Particularly in the case of very high performance engines glowplugs must be regarded as expendable items With a glowplug engine ignition is initiated by the application of a 1 5 volt power source W...

Page 13: ...orrect mixture strength as the throttle is opened FUEL Select by practical tests the most suitable fuel from among the best quality fuels available in your country for helicopter use For the best thro...

Page 14: ...turns open from the fully closed position Note If a different muffler is used this setting may require readjustment Idle Mixture Control Screw exactly two turns open from the fully closed position ex...

Page 15: ...or is fully closed when the throttle stick and throttle trim on the transmitter are fully pulled Down Stopping the engine Fully pull down the throttle trim on the transmitter Starting Connect the batt...

Page 16: ...ngine runs steadily Reminder Never touch or allow any object to come into contact with the rotating ro tor All internal combustion engines benefit to some degree from extra care when they are run for...

Page 17: ...xture Control Screw A special technique is required here If intending to make an adjustment e g 90 in the same direction before returning it to the new setting If this procedure is not followed moveme...

Page 18: ...this wiIl be indicated by a marked lack of exhaust smoke and a tendency for the engine to cut out when the throttle is opened ln this case turn the Mixture Control Screw counter clockwise to enrich th...

Page 19: ...ost when the model is puIled up into a climb the mixture is too lean ln this case land the model immediately and readjust thw High Speed Needle Valve to a richer setting 3 4 Having now found the optim...

Page 20: ...ostly accumulate here 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 c...

Page 21: ...e the High Speed Needle Valve Turn clockwise Land the model Idle for approx 10 seconds then reopen throttle to observe transition Float the model Idling OK Lean mixture Rich mixture High Speed Flight...

Page 22: ...output arm and the throttle pushrod are as closely as possible directry in line with carburetor s throttle arm as shown Servo output arm Throttle control rod A and B should be equal of length Set the...

Page 23: ...Type of screw C Cap Screw M Oval Fillister Head Screw F Flat Head Screw N Round Head Screw S Set Screw MAX 61SX HRING WC EXPLODED VIEW y t r e w q 0 9 8 7 6 5 4 3 2 1 C M3 5X15 C M3 5X8 1 i u 22...

Page 24: ...tor Retainer Assembly Carburetor Complete 60B Connecting Rod Piston Pin Cylinder Liner Heatsink Head Code No Description Piston Ring Piston Piston Pin Retainer 60B Thermo insulator Drive Hub Woodruff...

Page 25: ...ype of screw C Cap Screw M Oval Fillister Head Screw F Flat Head Screw N Round Head Screw S Set Screw MAX 61SX HG HGLRING WC EXPLODED VIEW y t r e w q 0 9 8 7 6 5 4 3 2 1 C M3 5X15 C M3 5X8 i u 1 A 24...

Page 26: ...sembly Carburetor Complete 60B Connecting Rod Piston Pin Cylinder Liner Cylinder Head For 61SX HG Code No Description Piston Ring Piston Piston Pin Retainer 60B Thermo insulator Glow Plug No 8 No 1 A...

Page 27: ...Type of screw C Cap Screw M Oval Fillister Head Screw F Flat Head Screw N Round Head Screw S Set Screw MAX 61RX HRING WC EXPLODED VIEW y t r e w q 0 9 8 7 6 5 4 3 2 1 C M3 5X15 C M3 5X8 1 i u 26...

Page 28: ...tor Retainer Assembly Carburetor Complete 60B Connecting Rod Piston Pin Cylinder Liner Heatsink Head Code No Description Piston Ring Piston Piston Pin Retainer 60B Thermo insulator Drive Hub Woodruff...

Page 29: ...ype of screw C Cap Screw M Oval Fillister Head Screw F Flat Head Screw N Round Head Screw S Set Screw MAX 61RX HG HGLRING WC EXPLODED VIEW y r e w q 0 9 8 7 6 5 4 3 2 1 C M3 5X15 C M3 5X8 i u 1 A t 28...

Page 30: ...sembly Carburetor Complete 60B Connecting Rod Piston Pin Cylinder Liner Heatsink Head For 61SX HG Code No Description Piston Ring Piston Piston Pin Retainer 60B Thermo insulator Glow Plug No 8 No 1 1...

Page 31: ...CARBURETOR EXPLODED VIEW q w 0 9 8 8 7 6 5 4 3 2 1 1 1 5 3 5 2 4 3 2 1 5 1 4 3 2 1 C M3X8 C M2 6X5 C M2 6X5 C M2 6X8 N M3X4 e C Cap Screw F Flat Head Screw N Round Head Screw S Set Screw Type of screw...

Page 32: ...1pc Screw for Needle 4pcs O Ring 2pcs Needle Ratchet Spring Needle Valve Holder Assembly Needle Valve Assembly Mixture Control Screw Fuel Inlet Plug Screw Fixed Throttle Stop Screw Carburettor Body O...

Page 33: ...in 2 000 18 000 r p m 2 2 bhp 16 000 r p m 600g 21 2oz SX H 88 7 28 79 42 28 43 5 25 52 4 4 2 61 9 42 6 UNF5 16 24 2 4 2 61SX HRING WC THREE VIEW DRAWING Displacement Bore Stroke Practical R P M Powe...

Page 34: ...66 in 2 000 18 000 r p m 2 2 bhp 16 000 r p m 597g 21 1oz RX H 42 30 10 25 52 4 4 2 88 7 28 UNF5 16 24 79 42 6 61 2 M3 5 Dimensions mm 61RX HRING WC THREE VIEW DRAWING SPECIFICATIONS Displacement Bore...

Page 35: ...2403050 71705000 55500002 27983000 71530300 O S GENUINE PARTS ACCESSORIES O S GLOW PLUGS IN FLIGHT CONTROL NEEDLE VALVE LONG SOCKET WRENCH WITH PLUG GRIP SUPER FILTER LOCK WASHER 10set M3 MIXTURE CONT...

Page 36: ...hts reserved Printed in Japan U N EQUALLED QUALITY PRECISION PERFORMAN C E ESTABLISHING THE STANDARDS OF EXCELLENC E 070100 TEL 06 6702 0225 FAX 06 6704 2722 6 15 3 Chome Imagawa Higashisumiyoshi ku O...

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