User manual OS ENGINES MAX-25FX

[. . . ] MAX-15CV-A, 25FX, 32SX It is of vital importance, before attempting to operate your engine, to read the general 'SAFETY INSTRUCTIONS AND WARNINGS' section on pages 2-6 of this booklet and to strictly adhere to the advice contained therein. q Also, please study the entire contents of this instruction manual, so as to familiarize yourself with the controls and other features of the engine. q 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. q CONTENTS SAFETY INSTRUCTIONS AND WARNINGS ABOUT YOUR O. S. ENGINE INTRODUCTION, BEFORE INSTALLING THE ENGINE BASIC ENGINE PARTS CARBURETOR PARTS INSTALLATION OF THE ENGINE THROTTLE LINKAGE, SILENCER FUEL TANK LOCATION GLOWPLUG FUEL, PROPELLERS MIXTURE CONTROLS BEFORE STARTING STARTING 2~6 7 8 9 10~11 11 12 13~14 14 14~16 16~17 RUNNING-IN (Breaking-in) IDLING ADJUSTMENT CHART MIXTURE CONTROL VALVE ADJUSTMENT, REALIGNMENT OF MIXTURE CONTROL VALVE SUBSEQUENT STARTING PROCEDURE SUBSEQUENT READJUSTMENT CARBURETOR CLEANLINESS, ENGINE CARE AND MAINTENANCE GENUINE O. S. [. . . ] 1. 5 volt heavy-duty or 2 volt rechargeable dry battery lead-acid cell (at least 5Ah) Warning (Very hot) Never touch the nichrome wire while the battery is connected. Resistance coil (nichrome wire) to ge ss. e olta er v ightn Low uce br red e Raisage to volt ease . incr htness brig 5 Battery leads Battery leads These are used to conduct current from the battery to the glowplug. Basically, two leads, with clips, are required, but, for greater convenience, twin leads with special glowplug connectors, as shown on the right, are commercially available. 6 Fuel tank For installation in the model, a 100cc(3. 5oz. ) for 15CVA, a 200cc(7oz. ) for 25FX, a 240cc(8. 5oz. ) for 32SX tank, is suggested. 7 Fuel bottle or pump For filling the fuel tank, a simple, polyethylene "squeeze" bottle, with a suitable spout, is all that is required. Alternatively, one of the purpose-made manual or electric fuel pumps may be used to transfer fuel directly from your fuel container to the fuel tank. 8 Electric starter and starter battery An electric starter is recommended for starting. 12V Battery Fuel bulb Fuel pumps Battery leads Electric Manual Starter Adjust applied voltage by changing the position of clip on resistance coil until glowplug element is glowing bright red. 15 9 Fuel can filter Fit a filter to the outlet tube of your refuelling container to prevent entry of foreign matter into the fuel tank. 10 Silicone tubing This is required for the connection between the fuel tank and engine. 11 Plug wrench Used for tightening glowplug. long plug wrench is available as an optional accessory. Fuel Can Filter 3. Do not allow fuel to overflow into the silencer, otherwise the engine may become flooded and difficult to start. (Do not overtighten. ) Now open the needle-valve counterclockwise to the starting setting:· 212~3 turns for 15CV-A · 112 ~2 turns for 25FX · 11 2 turns for 32SX Mark Turn needle-valve clockwise to close (for leaner mixture) Turn needle-valve counter-clockwise Close to open (for richer mixture) Open For tightening glowplug STARTING 1. Install appropriate propeller and tighten securely. 2. To facilitate electric starting, Install an O. S. solid aluminium alloy spinner-nut for centering the rubber drive insert of the starter. Alternatively, a good quality spinner, enclosing the propeller boss, may be used, but make sure that it is of precision-made and sturdy construction so that the spinner shell cannot loosen when the starter is used. one-quarter. (This is to avoid unnecessarily high r. p. m. when the engine starts. ) Fully closed position 1 4 Fully opened position 3 4 Set at this point 16 6. Connect battery leads to glowplug. 7. Bring electric starter into contact with spinner-nut or spinner and depress starter switch for one or two seconds. When the engine starts, withdraw the starter immediately. [. . . ] Next, energize the glowplug and try to 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 residue by rotating the engine with an electric starter for 4 to 5 seconds while the engine is still warm. Finally, inject some after-run oil into the engine. [. . . ]