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gentoo_
Member
Joined: 27 Apr 2007
Posts: 49
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 Posted: Tue Mar 11, 2008 6:26 pm Post subject: Can the Armature on DC07 motors be fixed? |
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| The brushes were ruined on a DC07 motor I have so replaced it with some new ones and it took chunks out of them. I looks like it's the Armature that's damaged, anyone know how I can fix this? that's if it's possible. |
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Teabag
Senior Member
Joined: 15 Dec 2007
Posts: 157
Location: Bedfordshire
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| Posted: Tue Mar 11, 2008 7:57 pm Post subject: |
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dont take offence, but stupid question...
did you put them in the correct way around for the rotation of the motor?
if theres damage on the armature you should feel it when rotated with your finger on there...
if brushes were installed in wrong direction and it rotates they would dig in wouldnt they?
btw i have no idea if they can be installed wrong... im just going by what i learned years ago.. 
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EJJ150847
Senior Member
Joined: 04 Jan 2008
Posts: 1284
Location: Fareham, Hampshire
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| Posted: Tue Mar 11, 2008 8:08 pm Post subject: |
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In the good old days of DC RN ships we could 'skim and undercut the commutator'. I don't think it's worth the effort these days, with the cost of a replacement motor.
John
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Mebyon Kernow |
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Cannyfixit
Senior Member
Joined: 15 Dec 2007
Posts: 351
Location: Cheshire
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| Posted: Tue Mar 11, 2008 8:38 pm Post subject: |
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 skimming the commutators that takes me back years ago we used 1/4 hp motor to pump the beer up to the bar when they started arking we used to use fine emery cloth taped to a lollypop stick 
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Gary |
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EJJ150847
Senior Member
Joined: 04 Jan 2008
Posts: 1284
Location: Fareham, Hampshire
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| Posted: Tue Mar 11, 2008 8:41 pm Post subject: |
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Aye and we also used Martindale sticks, same principle.
Us navy chaps made our own weird and wonderful tools for all sorts.
John
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Mebyon Kernow |
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gentoo_
Member
Joined: 27 Apr 2007
Posts: 49
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| Posted: Wed Mar 12, 2008 10:20 am Post subject: |
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You can only install the brushes one way on these. I can feel the armatures damaged when I spin it around, my dad said I can make it smooth with some Henry cloth and I've forgot what else but I don't know how. He's gone away for a few weeks so can't ask him.
I can't afford a new motor. |
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EJJ150847
Senior Member
Joined: 04 Jan 2008
Posts: 1284
Location: Fareham, Hampshire
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| Posted: Wed Mar 12, 2008 1:01 pm Post subject: |
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Try emery cloth to smooth out any grooves, then fine glasspaper, make sure you clear all the emery dust out afterwards.
John
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Mebyon Kernow |
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Apart4u.co.uk
Member
Joined: 28 Feb 2008
Posts: 50
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| Posted: Sat Mar 22, 2008 4:14 pm Post subject: you might as well replace the motor dc07 motor £ 34.25 |
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you might as well replace the motor dc07 motor £ 34.25
here is the link
http://www.apart4u.com/default.cfm?viewprod&id=20150
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• Parts should only be fitted by a suitably qualified or competent person in accordance with any manufacturer's instructions.
If in doubt, ALWAYS get a Professional to repair your appliance |
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