BuckeyeFarmer1994
New member
- Joined
- Sep 4, 2009
- Messages
- 20
- Location
- Southern Ohio
- Tractor
- 1984 John Deere 2750, 1976 JD 2240, 1951 Ford 8N, 1955 Ford 650
I am trying to run a pressure test on the main hydraulic pump on a JD 2750. Have I circled the appropriate place (in the picture) to attach the pressure gauge?
Incidently, I am trying to isolate why the tractor suddenly lost pressure at on the 3 point and remote outlets. I rebuilt the rockshaft around 100 hours ago, including new fluid, filter and screen cleaning. It has worked great until recently I shut it off after mowing pasture all day. About an hour later, I restarted the tractor and had virtually no lift from either the rockshaft or remote outlets. The remote output pressure is varying between 1,000 and 1,500 psi, so I am wondering whether there may be a piece of debris stuck in the priority valve. I have already tried backing the stroke control valve out then retightening, but that made no difference. I plan to pressure test the main pump prior to taking the prioirty valve out. Any advice will be appreciated!!
Incidently, I am trying to isolate why the tractor suddenly lost pressure at on the 3 point and remote outlets. I rebuilt the rockshaft around 100 hours ago, including new fluid, filter and screen cleaning. It has worked great until recently I shut it off after mowing pasture all day. About an hour later, I restarted the tractor and had virtually no lift from either the rockshaft or remote outlets. The remote output pressure is varying between 1,000 and 1,500 psi, so I am wondering whether there may be a piece of debris stuck in the priority valve. I have already tried backing the stroke control valve out then retightening, but that made no difference. I plan to pressure test the main pump prior to taking the prioirty valve out. Any advice will be appreciated!!
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