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1974 Ford 5000 Hyd pump

J

johnofnewhaven

Well-known Member
Good Morning!

I see on the parts section of this site and else where there is a hydraulic pump part number D0NN600G. It says it is 28 GPM. The 5000 is 6 GPM. So will this pump in fact deliver 28 GPM? Anyone ever bought and installed one? How does it work? Am I missing something? That sure would be great to have my loader operate faster! Thanks for your help and input in advance!
 
Thanks again Destroked! So is there a upgraded pump out there that will deliver more GPM for the 5000 non-dual power?
 

Not really. -610 series come out with a second pump mounted on the engine that will bolt onto the older models, but you'd have to have everything and even at salvage yard prices the cost would be high.
Other option is a front mounted pump like industrial model loader tractors had, but those loaders had built in oil tanks so you'd have to fab up an oil tank and plumbing.

Slow hydraulics is just a way of life with these older tractors.
I've gotten used to how fast the tail gate on my round baler opens using my 6610, had a flat tire last year and hooked the 5000 to the baler to finish the field (only 5 bales).
At first I thought something was wrong with the baler or the pump was going bad on the tractor, after the 3rd-4th bale I realized that's how the baler worked before I got the 6610.
 
Kind of thought I just have to live with the slow hydraulics. Never really in a hurry with the loader anyway.

On another note Destroked I know where a nice 6610 with a loader is sitting for sale (not mine ect...) if you know anyone looking.

Thank you for your help!
 
MY FORD service an repair manuals show it at 6 us gallons per minute. I have added the second pump to a 5610, but it was made to add so not that difficult.
 

Correct! I just looked at my Service Data Book.
I had done a quick look on Tractor Data and seen the 8 gpm listing.

Ether way is a lot less than the 28 gpm typo.
 
YT does list a pump with that part number for the 5000 & 7000, and claims it is 28 gpm. So does amazon and several other places on line, but I am pretty sure that gpm rating is incorrect. They also claim the pump is "transmission mounted" which is also incorrect. It is mounted in the rear axle center housing which is rearward in the tractor from the transmission.

Description: Fits 5000, 5100, 5200, 7000, 7100, 7200 all 1965-1975 with transmission mounted pump. Hydraulic Pump. Gear style unit, trans mount, less dual power. 28 GPM at 2000 RPM.

Hydraulic Pump Part Number D0NN600G
Click to expand...
 
It could really mean 28 DPM (drops per minute) :) That's about how fast a 5000 feels like when using a loader.

No way any aftermarket pump could put out anywhere near 28 GPM. 8 GPM I could see, but nothing more than that. That said, any pump larger than stock will wear out the drive gear faster than they already do.
 

I've got a factory parts book I purchased in 92 a little after I got my first 4000.
The section on the 5000-7000 hydraulic pump is a reprint of a 1986 parts book.
It list two pumps for the 5-7000 tractors
D0NN600G is the one they list for non dual power models, can't see an aftermarket pump with the same part number having nearly 5 times the pump capacity.
My 6610 with dual pumps is only rated at 18.2 gpm.

Did a bit of searching and found that Ford list's pump capacity of 6 gpm (22.7 liters) at 1680 rpm

On this site the pump is rated at 2200 rpm, it's very possible that number is 28 liters rather than 28 gallons.

That would be more realistic.


John
 
The 1680 RPM number that you quote is pump RPM, not engine RPM. I just went out and checked the 5000 I'm working on. The pump has 25 teeth,
and the engine-driven hub has 20 teeth, for a ratio of 1.25:1. Doing the math, 2100 engine RPM (rated speed) divided by 1.25 = 1680 pump RPM.

All that said, I could see possibly an 8 GPM aftermarket pump being available (although I've never seen it). In my opinion, the internal
passages inside that system won't tolerate much more than that. 28 LPM converts to 7.4 GPM, so that much is certainly feasible.
 
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