Posted by pete 23 on May 05, 2013 at 11:06:58 from (74.47.40.242):
In Reply to: 3388 hydraulic issues posted by Eric in IL on May 05, 2013 at 08:30:49:
You said you set the flow on the planter. Don't know if you really meant that to come out that way or not. But , you never set the flow at the control at planter with this pfc system. You have to set flow on the tractor flow control lever and use the priority valve,(number one valve, black handle). If you restrict the flow at the planter the pump will attempt to force all flow through , destroke pump and leave nothing for other valves. Always treat a pfc closed center system which you have like it was open center with no restrictor at the planter or any hydraulic motor or cyl. If you had the old John Deere style closed center, then you can orfice off at any place you want and still leave flow for balance of system. I am assuming the tractor has original hydraulic system and not been converted to gear pump which some have been.
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