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Repairing FHP TENV Leeson Motor

Discussion in 'Members Lounge' started by jpanhalt, Mar 27, 2017.

  1. jpanhalt

    jpanhalt Well-Known Member Most Helpful Member

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    I have a TENV fractional HP (1/6 HP, 3.2 FLA at 115VAC) Leeson motor on a septic aerator. The bearings froze and are shot after just 2 years. The armature has a plastic internal fan that makes removal of the armature and replacement of the end bearing difficult. There is no external capacitor. The fan can probably be removed with a little heat, but I am worried about getting it reattached well. I would use Loctite if I get to that point.

    Question: Is the fan really necessary?

    John
     
  2. Les Jones

    Les Jones Well-Known Member

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    I think the fan is necessary. (The manufacturer would have saved the cost of the fan if it was not required.) You may be able to remove the bearing using a seperator tool like this one.
    I had to make one a few days ago to remove a bearing on a Dewalt chop saw. This is a link that shows this type of tool being used on this type of chop saw.

    Les.
     
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  3. jpanhalt

    jpanhalt Well-Known Member Most Helpful Member

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    Problem was solved with a little more persistence and effort. Got the fan off without heat or damaging it. Will re-install with a little Loctite. My concern was that if the fan were damaged, it is not something I could buy retail.

    I am in urgent need to get the aerator fixed as my daughter and her family are visiting in a little more than a week.

    John
     
  4. dave

    Dave New Member

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  5. MaxHeadRoom78

    MaxHeadRoom78 Active Member

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    Is it sintered bronze or roller bearing?
    If sintered bronze and not overly worn it can be cleaned off and soaking in light oil for a while.
    Max.
     
  6. jpanhalt

    jpanhalt Well-Known Member Most Helpful Member

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    It is/was ball bearing. Even the shields are distorted. Here is what they look like upside down:
    upload_2017-3-27_17-41-46.png

    The long shaft is hollow and submerged. Air is aspirated into the sewage. The motor rests in a riser off a holding tank.

    For mine, the motor is enclosed on a larger bell housing. It is no longer made, and technically (EPA sort of thing) , I can repair with the same thing, but substitution of a functionally identical unit, e.g., one without the bell housing, would require recertification if my system, since the system and aerator were sold as a unit. Fortunately, that law is rarely enforced on home owners; however, it is a risk should there be a problem.

    John
     
  7. KeepItSimpleStupid

    KeepItSimpleStupid Well-Known Member Most Helpful Member

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    Could you change to a ceramic bearing?
     
  8. jpanhalt

    jpanhalt Well-Known Member Most Helpful Member

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    It is a common 6203 (metric) bearing. Picking up two SS, rubber-sealed ones tomorrow. Cleveland has a very large bearing warehouse on the West (my side) of town.

    John
     
  9. KeepItSimpleStupid

    KeepItSimpleStupid Well-Known Member Most Helpful Member

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