Posted 5/13/2009 18:53 (#712498 - in reply to #711341) Subject: RE: 4720 JD Sprayer erratic pressure/rate
Durand, WI
after trying the other things mentioned here set your boom charge to manuel and clean your flow meter with some brake cleaner, if that does not do it it may be a faulty flow meter. We encountered the same problem with ours and had to buy a new flow meter (ouch!)