Udor Kappa 15/12 Pump Leaking... Please help!!!

Discussion in 'Pesticide & Herbicide Application' started by designerlawns, May 3, 2011.

  1. replenish&subdue

    replenish&subdue LawnSite Senior Member
    Posts: 267

    I believe you use brake fluid to clean pumps.
    I had trouble with my Udor 55 oil mixing with the chemical. Did everything I was told to do.Replaced diaphrams,o rings...ect.twice. Bought new pump and have same problem. Udor said they would work with me but can not get a response. I will need to bug them some more.
    Anyone have my problem?
     
  2. SmartLawnCare

    SmartLawnCare LawnSite Member
    Posts: 17

    @replenish&subdue: Brake 'fluid' or brake cleaner? Some sites say paint thinner or carb cleaner. Nothing caustic like Purple Power, it turns the surface black and smears. I used carb cleaner and it worked the best.
     
  3. SmartLawnCare

    SmartLawnCare LawnSite Member
    Posts: 17

    Cleaning the pump body with carburetor cleaner spray so that no oil remained on the surface helped us spot a leak. Noticed the flange connecting the pump head to the motor was not tight against the pump head (where the gasket part # 9100) goes. The metal surface on the head was worn. It looks as if the head was vibrating and wore the top and bottom of the site, imagine a shallow rocking chair rail. Probably the last person to reassemble the pump did not properly tighten the 4 bolts that connect the flange to the head. We have 3 identical pumps, one was so worn that a fingernail could fit between the flange and head at the top near the oil input. As a last resort, we are have applied RTV gasket sealer on both sides of a new gasket. So far, no leaking, but we haven't used the motor yet.
    http://www.udorusa.com/breakdowns/KAPPA_7_15_18_12volt.pdf
     
  4. replenish&subdue

    replenish&subdue LawnSite Senior Member
    Posts: 267

    Sorry,brake cleaner.
     

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