On Friday 27 October 2017 13:01:12 Nicklas SB Karlsson wrote: > > Greetings everybody; > > > > Now that I have my G0704 back among the living, I've noted that the > > spindle pid has to show a bit of error, and reverse is still slower > > than fwd (about 25% slower) despite the fact that I have a .60 bias > > in fwd, and a .90 bias in reverse as friction helpers. > > > > Can this be because the brush locations are such that it highly > > favors the fwd rotation? > > I had problem starting my tractor once and connected more batteries, > there where plenty of long sparcs like welding and I correctly assumed > brushes where worn out. > That has also crossed my mind, but I've not noted any voltage spikes like bad brushes would give. You can't see them w/o removing that huge cover over everything, and then holding a mirror above it to see into it. I did do that a year or more back and didn't see anything unusual. And the difference in speeds was obvious then too.
> It might be a good idea to turn by hand and check if load is same in > both direction. To run motor without load in both directions is also a > good idea. >From the hand on the spindle test, or from the top of the tight drawbolt it turns with equal ease in both directions. Thanks Nicklas. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
