Re: [EVDL] Controller or Motor Problem?

2017-10-31 Thread Buddy Mills via EV
N1  ok in Sent from my Verizon, Samsung Galaxy smartphone Original message From: - - via EV Date: 10/31/17 1:52 PM (GMT-05:00) To: Electric Vehicle Discussion List Cc: - - Subject: Re: [EVDL] Controller or Motor Problem? An HTML attachment was scrubbed... URL: <h

Re: [EVDL] Controller or Motor Problem?

2017-10-31 Thread Jay Summet via EV
Ok, good to know about my brush life, thanks. I re-read the whole thread and realized that replacing your brushes did not fix your issue of super slow acceleration. So unless you are seeing a lot of sparking from your brushes when running it no load (try 12v battery alone as suggested) I'd be

Re: [EVDL] Controller or Motor Problem?

2017-10-31 Thread - - via EV
Hi David, The pictures that Jay posted show the brushes very well. They are installed in pairs, in 4 locations. In 2 locations, the brush nearest the end of the motor had braids that were worn, or corroded, or somehow damaged. On the brush where the braid was completely gone, it actually looked

Re: [EVDL] Controller or Motor Problem?

2017-10-31 Thread - - via EV
Hi Jay, I don't have photos, but I just replaced the brushes in my motor and they look very similar to yours now. My new brushes might be sticking up an extra mm or so, but not much more than that. Also, the braids on your brushes still look shiny and coppery. My old brushes had braids that had

Re: [EVDL] Controller or Motor Problem?

2017-10-31 Thread - - via EV
Sorry, I didn't realize my Webmail was set to HTML. Sending as Text: I wiped the armature after I replaced the brushes, but I didn't do anything to remove carbon more aggressively (no stoning or anything). I also blew out all the carbon from shaping the brushes. That made a big mess! My brushes

Re: [EVDL] Controller or Motor Problem?

2017-10-31 Thread - - via EV
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Re: [EVDL] Controller or Motor Problem?

2017-10-31 Thread - - via EV
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Re: [EVDL] Controller or Motor Problem?

2017-10-31 Thread - - via EV
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Re: [EVDL] Controller or Motor Problem?

2017-10-31 Thread Jay Summet via EV
It sounds like you need new brushes at a minimum. I have the same motor and have taken some photos of my brushes (installed) earlier this year. They are mounted in pairs (each brush has two pigtails). You can see the photos here: https://www.summet.com/blog/2017/10/31/fb1-4001a-motor-brush-ph

Re: [EVDL] Controller or Motor Problem?

2017-10-31 Thread EVDL Administrator via EV
FIrst things first: find out what's going on. You need a proper ammeter so you can measure the actual motor current. If you have one measuring battery current, why not move the shunt so it's measuring motor current? Alternatively, you could buy another ammeter. The ones sold by EV parts deal

Re: [EVDL] Controller or Motor Problem?

2017-10-30 Thread paul dove via EV
Did you clean the carbon off of the armature? If the build up is bad enough you can have a frame short. Sent from my iPhone > On Oct 29, 2017, at 10:58 PM, Mike Nickerson via EV wrote: > > Hello everyone, > > I've owned a long-time conversion for the last 7 years or so. It is a > medium perf