I rebuilt my Kappa 43 yesterday

Discussion in 'Pesticide & Herbicide Application' started by Victor, Dec 7, 2007.

  1. Victor

    Victor LawnSite Bronze Member
    Messages: 1,430

    I know it's strange, but I actually enjoyed it. Since this was my second year running my Gregson-Clarke V-200 skid, I decided it would be a good idea to rebuild my Udor pump (Kappa 43). It still worked great and didn't need to be rebuilt, but I wanted to see how much wear 2 years worth of use would put on it. There really wasn't any visible wear. I was really impressed. I'm still glad I decided to do it, because I'd rather rebuild it when I have tons of free time and don't need my skid, than wait until it has to be rebuilt (probably right in the middle of the season).

    I also figured it would be a good idea, because it would allow me to become familiarized with the inner-workings of this pump. If I ever need to tear into my pump to make a mid-season repair from now on, I'll be able to do it more quickly.

    I feel a lot better knowing it's ready to go and should give me several years of reliable service, before I'll need to rebuild it again.
  2. RigglePLC

    RigglePLC LawnSite Fanatic
    Messages: 13,808

    How long did it take? What do you have to do besides new diaphragms and new oil? New o-rings? New valves or valve seats? Add gear oil to any speed reducer gears?
  3. Victor

    Victor LawnSite Bronze Member
    Messages: 1,430

    I could have finished a lot quicker, but I'd say from start to completion, it took me about 3 hours. I didn't work straight through on it though. I took my time and enjoyed the fact that I didn't need to hurry.

    Like you mentioned, I replaced the diaphragms, and O-rings that seal the check valves into the heads. I didn't need to replace the check valves as they were in great shape. I did change the gear oil in the gear-reduction case after I filled the pump with "Udor Lube." That's the lube Udor recommends filling their pumps with.

    Since this was my first time rebuilding one of these pumps, I checked with Rhett at Gregson-Clarke to make sure I wasn't missing anything I'd need. As always, he was great to deal with.

    It was really straightforward and easy to do.

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