Posted by onefarmer on August 02, 2009 at 18:11:05 from (208.100.203.82):
In Reply to: JD 4320 Hyd. trouble posted by Croh on August 02, 2009 at 16:36:16:
The trans pump is driven by the clutch and if the clutch is depressed then the pump don't work, losing steering, brakes, and pto engagement. This pump also sends charge oil to the front(main) pump and you can lose high pressure oil to the 3pt and remotes. If you're using the 3pt or the remotes while holding the clutch down you will lose steering, brakes, ect.. even quicker.
You could also have a plugged filter or pickup screen limiting oil flow making the oil pressure run out sooner.
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