Posted by JWalker on July 28, 2011 at 17:55:41 from (66.153.236.237):
I have a sprayer with a John Blue ground driven pump. I have used this for about 7 years with no problems. I used it two weeks ago to spray 25 acers. It has always had good pressure/flow. While trying to spray nitrogen today the spayer just up and quit spraying. I have taken the output line loose three times: the firt time from the top of the pump. I had low flow. The second time I took the output line loose from the junction box and I did not have any flow. The third time from the pump again but this time with no flow. I then took the supply line loose from the pump. I had plenty of flow going to the pump. I had my wife hold her hand on the input of the pump while I turned the pump by hand: she said there was no suction.
Having said all of this has anyone had any experiance rebuilding one of these pumps? Is it a do it yourself or seek professional help? Is there a quick fix or is it a major rebuild?
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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