---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Mon 11/26/18: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:39 AM - Re: 912 Bed-Mount bolt torque (rlk@granderiver.net) 2. 01:52 PM - Re: Rotax 912 UL Rectifier wiring (h&jeuropa) ________________________________ Message 1 _____________________________________ Time: 06:39:26 AM PST US Subject: Re: RotaxEngines-List: 912 Bed-Mount bolt torque From: rlk@granderiver.net My 701 uses the bed mount also. The only reference I can find is in my old Rotax Heavy Maintenance Manual. 71-00-00. Page 20. Paragraph (6.1.3) May 01/2007. It's for a dynafocal mount. But it is using the same bolt holes as the bed mount. 29.5 ft. lbs. Also specifies that these should be 10.9 strength bolts. I recently replaced my M8 bolts after about 1500 hours on them. Finding this reference was why I changed them. ________________________________ Message 2 _____________________________________ Time: 01:52:59 PM PST US Subject: RotaxEngines-List: Re: Rotax 912 UL Rectifier wiring From: "h&jeuropa" I have Lockwoods article. While the text does indeed state the positive charging wire which is connected to R, B+ and C must not remain connected to the positive side of the battery when the master switch is turned off or the battery will discharge when the engine is not running, note the Attention box on the same page which states during engine stop, break circuit between battery and terminal C to avoid discharge of battery. This last statement is correct. R and B+ can remain connected without problem. The original circuit you submitted from Allegro provides correct electrical operation if you remember to always turn off breaker 13 when you shut down the engine and turn it on after engine start. R and B+ will always have 12VDC on them but C will only have 12VDC when breaker 13 is on. If you wish to control when 12VDC is applied to R and B+, you might want to add a contactor or solenoid like Aircraft Spruce PN STS-12M. The problem with that is the solenoid itself requires about 3 amps to operate which is a problem when you dont have much electrical capacity as your load analysis shows. Are you certain about your load analysis? Are the position and strobe lights LED? The Rotax Ducatti will operate at 11 amps OK but much more than that it will fail from overheating causing internal components to fail. It will not reliably operate at 18 amps no matter what the documentation says:) Let me know if I can help further. What is the original charging problem that started this thread? Jim Butcher Europa XS, Rotax 914 1000 hours Read this topic online here: http://forums.matronics.com/viewtopic.php?p=485741#485741 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rotaxengines-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RotaxEngines-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/rotaxengines-list Browse Digests http://www.matronics.com/digest/rotaxengines-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.