Hold a maggy in your hand and put a finger on the P terminal and then with the other hand turn the coupling through the impulse and this will tell you why.
It’s called high voltage. Nige. From: [email protected] [mailto:[email protected]] On Behalf Of Michael Stockhill Sent: Sunday, July 16, 2017 2:00 PM To: [email protected]; Laurie Hoffman <[email protected]> Subject: Re: [DOG mailing list] Ignition switch and brakes. I wonder why this would need to be a 20 amp switch as its only function is to ground the magneto so I don't think it is carrying that much current...it is open when not providing a ground path. I have lots of Bendix manuals at the hangar that I will peruse for a possible explanation and possibly see what Bendix specifies. Michael On Jul 15, 2017 5:15 PM, "Laurie Hoffman via dog" <[email protected] <mailto:[email protected]> > wrote: That's interesting as the specs for that switch are 20Amp. The switch that I removed (which looks to be original) is labelled 40 Amp. Best Regards Laurie _____ From: "[email protected] <mailto:[email protected]> " <[email protected] <mailto:[email protected]> > To: "[email protected] <mailto:[email protected]> " <[email protected] <mailto:[email protected]> > Sent: Sunday, 16 July 2017, 9:03 Subject: [DOG mailing list] Ignition switch and brakes. Hi Laurie, I thought to look in the H 36 maintenance manual 🙄 and on page 19 (Electricals), it does confirm ignition switch spec is MS 35058-22…. And Mike, Tom says that he put a BNR O ring in a test container of Dot 3 fluid for several years and there was no signs of deterioration softening or swelling so indeed it seems they are not so incompatible. He installed the EPDM O rings as the first and cheapest step of a process of chasing down persistent brake leaks. The Diamond-supplied Nitrile O rings that he removed look fine, and it turns out 2 new Pistons were the $olution. Cheers Kristin Sent from my Windows 10 phone
