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Thread: Wiring Question (Vacuum Motor)

  1. #1
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    Wiring Question (Vacuum Motor)

    I had to get a replacement motor for my horse vacuum but unfortunately it didn't come with any instructions (company is a bit weird - they badgered me about why my motor quit on me. WTF? Just sell me a new one!).

    It looks pretty straight forward but all the wires are the same color from the motor to the plug (there is one white wire on the plug side) so I'm not sure if it's all good or if I need to make sure wires don't get crossed. Here are some pictures. When it's all wired up the motor will sit in the housing (this is the old motor still wired as it was when I bought the vacuum).














  2. #2
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    If you reverse the wires it becomes a horse blower.

    Its a choice of whether you want to suck or blow.
    "timberridge is terminally vapid" -- a fortune cookie in Yueyang

  3. #3
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    Quote Originally Posted by Timberridge View Post
    If you reverse the wires it becomes a horse blower.

    Its a choice of whether you want to suck or blow.

    I concure!

  4. #4
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    Quote Originally Posted by Timberridge View Post
    If you reverse the wires it becomes a horse blower.

    Its a choice of whether you want to suck or blow.

    Quote Originally Posted by capulin overdrive View Post
    I concure!
    Serious or are you just blowing air up my skirt?

    This is what the vacuum looks like - the motor I'm replacing is the one on the outside/bottom. There is another one inside.


  5. #5
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    yes he is serious

  6. #6
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    About all you can do is trace the wires to which side of the motor they go to, and try and do it the same.


    If it blows instead of sucks, then switch the 2 wires.


    Could also check to see if the wires have numbers on them for identification.

  7. #7
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    Thank you all!

  8. #8
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    The black wire would be the hot one and I would just wire it up the same

    I didn't know horse vacumms existed, the obvious question is how do horses react to getting sucked off?
    Lee Lau - xxx-er is the laziest Asian canuck I know

  9. #9
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    Quote Originally Posted by XXX-er View Post
    The black wire would be the hot one and I would just wire it up the same

    I didn't know horse vacumms existed, the obvious question is how do horses react to getting sucked off?
    LOL!!! Horse vacuums are a blessing esp. during shedding season or when you live in a dusty place like I do otherwise you're just pushing dust around with a brush with most of it landing on you or in your sinuses.

    Most of them love to be "sucked off" as you say.

  10. #10
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    The motor with the same colored wires and the old one if they are different colored wires of course do not help unless the old motor had the same 2 colored. If the company is worth anything, then a single call to their technical person(s) should answer which side is which in the new motor wiring of the same colors they used. But if they hassled you about why it failed, then maybe they will not help. Sometimes you can trace the wires back to see if there is any markings of plus and minus or ground, assuming that the new motor is designated anywhere.

  11. #11
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    Quote Originally Posted by KQ View Post
    LOL!!! Horse vacuums are a blessing esp. during shedding season or when you live in a dusty place like I do otherwise you're just pushing dust around with a brush with most of it landing on you or in your sinuses.

    Most of them love to be "sucked off" as you say.
    Goodness yes i can see i used an unfortunate choice of words there!

    I wondered if the noise of the vacuum spooked them, guess I have always seen horses being washed
    Lee Lau - xxx-er is the laziest Asian canuck I know

  12. #12
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    Is it a 120v motor? If so you want the switch on the line (power wire), not the neutral. It won't run a different direction on AC power. Reversing the wires works on DC or three phase motors

  13. #13
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    Quote Originally Posted by Jethro View Post
    It won't run a different direction on AC power. Reversing the wires works on DC or three phase motors
    I was gonna post that. Looks like an AC motor, no rectifier circuit.

  14. #14
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    In the bottom pic, which shows the male plug, one blade is wider. That is the neutral. You might need a meter to test continuity to determine which wire goes to which plug blade It goes to the white wire if you have one. If you have no switch in the system, it really doesn't matter though. Look at pretty much any wall charger for a phone or computer. they have two identical blades which can be plugged in either direction.

    Big Steve is right. the motor looks like each side is identical, with no charging capacitors or rectifiers for DC use. You really can't mess it up.

  15. #15
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    +3 you cant mess it up, but might want to figure out what's wrong with that your old one, they might have questioned you because they don't spec their motors with any safety features...like a simple switch or thermal overload. If you take off the brushes you can also tell if they were getting hung up and not making good contact by looking at the contact surface itself, rounded straight shiny lines vs dull/ burned. Are you sure the wire nuts didn't just melt inside rendering them useless? They can also act as a sort of fuse in certain situations. Does it spin freely? Cant tell if that's a bushing or an actual bearing on the end (not that its easy to replace, hardly a serviceable motor) but if its stuck its either because the bushing is worn to the point that the rotor is attracted to the stator when it receives power and cant overcome the friction, or ball bearing is full of dirt and cant spin freely.

    really none of it matters but you might as well rip it apart and get something out of it

  16. #16
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    Are you sure the wires are identical? Could there be a thin black line along one of the wires?

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