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Page 2: ...w 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 meters per second it will be understood that such a failure could result in serious injury see NOTES section relating to propeller safety Model ...
Page 3: ... correct size wrench Always check the tightness of the propeller nut and retighten it if necessary 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 install a spinner make sure that it is a precision made product a...
Page 4: ...ot carry loose objects such as pencils screwdrivers etc in a shirt pocket from where they could fall through the propeller arc Do not start your engine in an area containing loose gravel or sand 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 f...
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