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2015 JD 4630 Sprayer not always holding rate problem
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Posted 6/12/2019 15:09 (#7555241)
Subject: 2015 JD 4630 Sprayer not always holding rate problem

Sprayer has 797 engine hrs. I have been putting on 15 gallons and sometimes it acts like i'm maxing the flow out. example- Driving 6 mph spraying fine @ 45 psi, all sudden rate drops to 13.8 gpa, back to 15, then 13.8, maybe 12 something so I slow down a bit to 5mph, then it holds 15gpa fine. We have been down to 4.5mph trying to keep rate on, but next pass might work fine at 7mph. Its seems to me that something is not telling the pump to spin fast enough and I'm using all its flow and not enough buffer but I do not know? Any help would be much appreciated! thanks
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