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Ford 7610 Hydraulics

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Harry7610

New User
Hi. I have a 1984 7610 with a Tanco Loader. The loader is slow to lift but a bigger issue arises when I try to use the rear spools to tip a trailer. It will tip an empty trailer but any more than half a tonne & it can"t lift it.
Filters & oil have all been changed.

Any ideas?
 
(quoted from post at 09:13:20 03/09/12) Hi. I have a 1984 7610 with a Tanco Loader. The loader is slow to lift but a bigger issue arises when I try to use the rear spools to tip a trailer. It will tip an empty trailer but any more than half a tonne & it can"t lift it.
Filters & oil have all been changed.

Any ideas?
Click to expand...
easure hydraulic pressure.
 
Time for a new hydraulic pump.Plug a pressure gage in one of the remotes and check pressure with oil at operating temp.If not at least 2000 lbs you need a new pump.
 
Given it's a 10 it's more likely got something stuck in one of it's various releif's or possibly a stuck load sense spool.
A bad pump is not impossible but it's down the list a way.
Most 10 series hydraulic problems are solved by a complete disassembly and cleaning of all spools in the priority pack under the seat.

Rod
 
My experience has been that it could just as likely be a pump as it could be a stuck valve. Ford open center gear pumps are not known for their ruggedness or longevity.
 
Prolly a dumb couple of questions, but here goes!
#1 Are you feeding the loader valve from one of the remotes?
#2 If so, are you returning the remote feeding the loader to neutral when attempting to dump the trailer? If not, you will prolly need to do that.
HTH, Dave
 
I dunno... I've never seen a 10 pump so bad it couldn't lift 90% of what it should lift... and I've seen some that were quite bad and one that was completly destroyed.
I do agree that the pumps were no great hell... but the symptoms here seem a little bit off.

Rod
 
my bet is the pump.. put a guage on the pump and look for 2175lbs give or take at 1500 rpms give or take.. pumps do get tired.
 
Poor advise to suggest a new pump without pressure/flow testing and examining the priority pack for debris and or stuck spools. You don't even suggest which pump to replace. It would be a shame for the guy to spend $1500 or more on two pumps and not make any improvement.
And that can/has happened when somebody starts throwing parts at one of these systems without knowing any better.
 
If you reread my post you will see that i advised him to check pressures on the system.The reason i said pump was because i have fought this battle with the symtons he described before several times.I hope for his sake its not a pump but,its been my experience that it will be.If he does not have the tools to check it out then,he should find someone to do that before he starts swapping parts.Rod has also given him good advise.
 
It takes more than a gauge in a remote coupler to determine the faults with this system. I think we can agree on that.
 
If he doesn't have a flowmeter and/or the right tool for testing, he can always remove and disassemble the pump for a visual inspection. It's pretty easy to spot major wear in those pumps.

Having said that...ANY of those pumps will show a little body track wear, no matter how new. Do not replace a pump simply because of a small amount of wear in the body caused by gear tracks. Look close at the bearings. That will be your guide.
 
Folks - sorry it has taken to long to pick this thread up again. For various personal reasons I have only recently got back to looking at tractor hydraulics. Thanks for all your suggestions - I'll post my findings for the benefit of others (and the kudos of Rod!)

I ran the pressure test & was getting a fluctuating 400psi-900psi on the bottom pump. When I switched to the auxiliary pump I was getting a flat 300psi.

I stripped the priority pack & it was clean and damage free, rebuilt & no change. Someone then told me that one of the valves within the priority pack splits down further - when you extract it there is an allen key slot in one end of the valve. Count the turns taken to remove it as this is a variable setting. Inside is a spring, ball bearing & seat and a gauze filter. I cleaned this out and rebuilt and immediately registered 1900 psi at the spool. I'm assuming this is as good as it will get for a 30 year old pump? I don't do heavy hydraulic work so I will see how it performs &, if necessary, consider pump change.

Anyway - thanks to all.
 
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