DC motor rebuild for $12 (a saving of $2500)

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  • Опубліковано 16 вер 2024
  • Problem and solution explained and shown on a Leeson C42D48OB3B model, 102 VDC, 1.62 HP, n=5190

КОМЕНТАРІ • 24

  • @wxfield
    @wxfield 2 роки тому

    That's not chewing gum. It's the weight they use to balance the spindle. It goes on very soft and flexible..like dough. It's soft like this to allow the operator of the balancing machine to "pinch" pieces off the weight to bring the spindle into balance. After 24 hours the "dough" will harden like a rock onto the wires, permanently.

  • @sl5311
    @sl5311 2 роки тому

    Great explanations for beginners. Very encouraging. I am rebuilding a small greenhouse inflation fan there is rust on the copper wiring. What do you suggest I use to remove the rust? The copper wires are very thin and I don't wan to break them. Thank you.

    • @theoverengineer
      @theoverengineer  2 роки тому

      Copper wires are coated in varnish, microscopically thin layer but critically important. Any cleaner that dissolves the varnish is counter-productive. Rust is iron deposits, they are water soluble. Test is with water and a soft toothbrush, then dry everything with air, See how that works out.

  • @bat3bat392
    @bat3bat392 3 роки тому

    The plastic that holds the carbon brush melted
    Do you know where I can but that part

  • @leemontoya8028
    @leemontoya8028 10 місяців тому

    Hi! The two magnets inside are they glued in place? Or do they just stay in place because there magnets? Please get back! Thank you!

    • @theoverengineer
      @theoverengineer  10 місяців тому

      They are epoxy glued in exact place by manufacturer.

    • @leemontoya8028
      @leemontoya8028 10 місяців тому

      There not glued! they can come out! but they look like they were once glued!@@theoverengineer

  • @billsiyao
    @billsiyao 3 роки тому

    can you help me understand how you can put the wooden dowel to hold the brushes and remove it after installation? For my motor, I don't have enough room to put the wooden dowel in as there is barely any gap after I insert the commutator into the hole. Please advise?

    • @theoverengineer
      @theoverengineer  3 роки тому

      Any thin piece of wood, metal strip, paper will do.
      Thanks for watching!

  • @santuariomessi
    @santuariomessi 3 роки тому

    Hi.thank you... How did you re assambly the bearings??

  • @DougWoodrow
    @DougWoodrow 3 роки тому

    Thank you, very clearly explained!
    So $12 for the 2 bearings, but how much for the specialised tool you mentioned?

    • @theoverengineer
      @theoverengineer  3 роки тому

      When was it mentioned?

    • @DougWoodrow
      @DougWoodrow 3 роки тому

      @@theoverengineer 11:42 "a proper bearing installation tool".
      And isn't a bearing-puller also required?

    • @mikem5475
      @mikem5475 2 роки тому

      @@DougWoodrow you can use any pipe strong enough and the right side outer diameter to fix the inner sleeve of the bearing. How much is that? A dollar? The old bearings can be cut off with any rotary cut off tool. 20$ maybe

  • @raghuarmani8341
    @raghuarmani8341 3 роки тому +1

    Where can we buy commutator, winding etc?

    • @theoverengineer
      @theoverengineer  3 роки тому +1

      try newark element 14 . com

    • @leemontoya8028
      @leemontoya8028 10 місяців тому

      Hi! The two magnets inside are they glued in place? Or do they just stay in place because there magnets? Please get back! Thank you! @@theoverengineer

  • @nazihfa
    @nazihfa 4 роки тому

    i have smoke coming from the motor , but it's working fine
    what may be the problem ?

    • @theoverengineer
      @theoverengineer  4 роки тому +1

      - burning through the varnish on the wires. Too much friction in the bearings?

  • @billk5631
    @billk5631 7 місяців тому

    You saved 2500.00 dollars? You are joking, right?

    • @theoverengineer
      @theoverengineer  7 місяців тому

      Time spent shopping + delivery + scrap disposal + time spent with this all + cost of new machine with dazzling features not just bare basics like the old was = ... way more money than $20 for bearings

  • @Francois_Dupont
    @Francois_Dupont 5 років тому

    2500$ for a threadmill?