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01-21-2019, 12:12 PM | #1 |
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Electric Wiper Questions
I'm playing with a 6v Heinz Model 1 wiper unit and am hoping for some advice on two things:
1. Initially the motor didn't run. The commutator slots were clogged. I gently cleaned the slots using a small screwdriver. I tested the motor with no load and with the cover removed. It runs but I see small orange sparks at both brushes as the commutator spins. Is the sparking normal? If not, how would I correct it? 2. The motor drives several gears - what type of grease would be best to lube the gears? Thanks much. Dave Last edited by Pilotdave; 01-21-2019 at 01:42 PM. |
01-21-2019, 12:23 PM | #2 |
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Re: Electric Wiper Questions
I would say the sparking is normal as long as it isn't excessive. Small orange sparks sound okay to me.
As for grease I'd think something light but thick enough to cling to the gears. My first thought was grease designed for the small gears in model railroad locomotives. Maybe this? https://labelle-lubricants.com/shop/...ase-with-ptfe/ |
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01-21-2019, 01:40 PM | #3 | |
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Re: Electric Wiper Questions
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01-21-2019, 01:46 PM | #4 |
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Re: Electric Wiper Questions
Thanks, guys. Vaseline I have in stock!! BTW, I've corrected my original post as I think it should have referred to the"commutator" rather than the "armature".
I've been doing a little research elsewhere online - saw that scratches on the commutator surface may cause sparking. I'm suspecting that I might have scratched it when I cleaned the slots. Will investigate and carefully buff the surface. |
01-21-2019, 01:54 PM | #5 |
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Re: Electric Wiper Questions
Really overthought that one.. vaseline would probably be perfect!
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01-21-2019, 06:29 PM | #6 | |
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Re: Electric Wiper Questions
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Bill W.
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"THE ASSISTANT GURU OF STUFF" |
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01-21-2019, 06:42 PM | #7 |
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Re: Electric Wiper Questions
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01-22-2019, 08:03 AM | #8 | |
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Re: Electric Wiper Questions
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It's the shits, when you have to learn to TALK, again!!!---BUT, it's going good. I practice on the Dog! Bill Babbling
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01-22-2019, 02:45 PM | #9 |
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Re: Electric Wiper Questions
Nice to see you posting again Bill .
Paul in CT |
01-22-2019, 03:48 PM | #10 | |
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Re: Electric Wiper Questions
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Good to hear from you again Bill!! Now if the dog talks back then we've got problems...
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01-22-2019, 08:23 PM | #11 | |
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Re: Electric Wiper Questions
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Bill W.
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01-23-2019, 09:05 AM | #12 | |
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Re: Electric Wiper Questions
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01-23-2019, 10:44 AM | #13 | |
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Re: Electric Wiper Questions
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01-23-2019, 01:49 PM | #14 | |
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Re: Electric Wiper Questions
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Mine works pretty well but only when the windshield is closed, must be a grounding issue. But then why would you run your wiper with the windshield open |
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01-23-2019, 06:30 PM | #15 |
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Re: Electric Wiper Questions
I appreciate the grounding and commutator clean-up suggestions, guys. I have been reluctant to remove the commutator but have concluded that I ought to do so. Any tips? And one question: how exactly does one "undercut the commutator insulators"? Thanks again!
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01-24-2019, 09:14 AM | #16 |
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Re: Electric Wiper Questions
Undercutting! My motor situation was one of more cleaning between copper segments, rather than undercutting. So in my comments, I used the wrong word What I used to accomplish that was an old hack saw blade that I cut down to the right width to assure there was no copper flakes or copper shorting between each bar. Actual undercutting equipment as I remember, even small manual devices are expensive and are available for larger commutators. If you do all you can to assure no copper between commutator segments and then install all parts and brushes and the motor runs without sparks at the brushes, you should be fine.
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01-24-2019, 10:16 PM | #17 |
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Re: Electric Wiper Questions
DHZIEMAN - thanks for the explanation. I think I've got it, by gar!
Dave |
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