Ford 5000 hydraulic pressure loss when hot
MTGreen
Platinum Member
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- Oct 12, 2022
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- 980
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- Montana, USA
- Tractor
- Deere 5220, Ford 1720, Deere Progator 2030
Maybe the pump is getting starved by the pickup filter or some rubber pieces are softening and getting air in the system?
TractorTech
Elite Member
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- Jan 26, 2012
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- 2,754
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- California
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- Ford 7710, Ford 550, Ford 1910, Ford 4430, KD Forklift, Ford LGT17H, New Holland L255 Skidsteer
Did this problem just start all of a sudden?
4Liberty
Member
That very same thing happened to my 5000. When I got it the fluid was chocolate milk. Drained, flushed, refill with fresh fluid. Three time. Running brush hog after 3rd time and everything quit. Suction screen on pump was plugged solid with paint chips,sawdust, and what looked like the remains of one of those desiccant packs. I mean plugged solid. Apparently the previous owner wasn’t picky about the cleanliness of the bucket they were using. I had to split the tractor to get all the dirt out.
fireman4074
Bronze Member
- Joined
- Jul 26, 2011
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- 96
- Tractor
- MF 231S
I’m having issue now. I’m my 5000 for hay baling. Yesterday pto was engaging fine but after about couple hours of running it, it just stopped in mid bale. I haven’t checked strainer. I hope it’s not pump!
4Liberty
Member
By all means check the strainer and return filter while you’re in there. You need a gasket for the pump so the pump gear has correct clearance. Check the relief valve on the pump maybe stuck.
careyo63
Elite Member
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- Jan 6, 2012
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- 2,588
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- 77 Yanmar YM2000 63 Ford 2000
Hyd. pumps usually work or they don't. Dirty filter is a common problem. If the Hyd. fluid is so low that it won't function usually means it has a leak involved to cause it. Most all the pumps have a pin on the Hyd. pumps Dr. shaft that will shear and totally quit. Helps prevent damage to the pump itself. Been through the extra Super Nasty Fluid and Filter Screen. I had to replace the screen it was so bad. Whale oil and pretty much what it looked and smelled like! Org. rice patty Yanmar!! Which has a relief valve on it also.
4Liberty
Member
When it happened to mine had to clean out the relief valve, partially stuck open and when it got hot and the fluid thinned out it was open just enough that it had almost no pressure. I think this is probably a 5000 thing and I’ve often wondered how many pumps just got replaced vs checking. Not saying the pumps not bad but worth $500 to me it’s easy to check. Fixed mine.
oldnslo
Super Member
If your 5000 is like the one we had their is an oil passage in the transmission housing that feeds the valve bank on the plate the seat bolts to. The O-ring that seals this failed on ours and caused loss of pressure. If my memory is correct their is an inspection plate below the brake pedals on side of trans housing that you can remove. Then have some operate the tractor while watching for oil flow with no load and then slowly start to dead head a function and watch for oil spray.
The passage in question was on right side as sitting on tractor.
The passage in question was on right side as sitting on tractor.
4Liberty
Member
That’s a possibility too. My 5000 is a 1967 and there was a driveline brake on the left side. On a 1967 that’s where the plate you speak of would be.