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  #11  
Old 01-18-2013, 07:52 PM
replenish&subdue replenish&subdue is offline
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Join Date: Jul 2008
Location: memphis,tennesse
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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?
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  #12  
Old 01-21-2013, 05:42 PM
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SmartLawnCare SmartLawnCare is offline
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Location: Akron, OH
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@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.
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  #13  
Old 01-21-2013, 06:02 PM
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SmartLawnCare SmartLawnCare is offline
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Udor pump leaking oil

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/KA..._18_12volt.pdf
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  #14  
Old 01-21-2013, 08:25 PM
replenish&subdue replenish&subdue is offline
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Sorry,brake cleaner.
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