Posted by caterpillar guy on June 21, 2016 at 15:17:24 from (71.82.184.255):
I am having problems with the booms not lifting. Now it is an old electric over hydraulic deal. When it went south we just plumbed them in to the tractor hydraulics. This has worked for a few years now very well. Today the booms worked to open up and started to spray. Stopped for a tree and now they will not lift or fold. I can lift them by hand and swing them with the valve. With a gage I got 1500 PSI at the couplers on both sides of both couplers. Now this afternoon I went down again to try after I had checked this out, and added a couple gallon of oil. It was not low, but not quite full either. So it is now about a couple of gallon over full not concerned with that. This afternoon all seemed good went to the field and same thing happened. This time I put a gage on the cylinder line, and got on the lift cylinder 500PSI on the swing 800PSI. I am guessing there is something in the system after the tractor causing the problem. The sprayer is hooked to an 806 IH I sprayed 40 acres yesterday worked fine.
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