New should be infinite Ohms, because brushes are mounted isolated. The carbon dust covering the isolated material between brush and metal connected to the enclosure, is what causes the leakage.
On Sun, Jul 21, 2024, 1:47 PM John Lussmyer via EV <ev@lists.evdl.org> wrote: > I just went a spent a while crawling around under the truck using lots > of compressed air through the motors. yeah, quite a bit of dust blew out. > BEFORE cleaning, I measured 12.5 ohms from a field post to the case. > AFTER cleaning, it went up to 13.4 ohms. > Still seems WAY WAY lower than it should be. > > Anyone have a new, never used, Impulse 9" motor they could measure the > resistance on? > _______________________________________________ > Address messages to ev@lists.evdl.org > No other addresses in TO and CC fields > HELP: http://www.evdl.org/help/ > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20240721/8127df1b/attachment.htm> _______________________________________________ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields HELP: http://www.evdl.org/help/
