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    Older Jd 510 Weak Hydraulics Intermitent

    Not sure on a ford some backhoes have another pressure relief valve before actually going into the manifold for the backhoe valves. The best way i found to see if your pressure is to low is to see if any of the relief valves will pop and go into bypass. The ones with the lowest settings are the...
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    Older Jd 510 Weak Hydraulics Intermitent

    Well i got it fixed !!!!! Since i could't adjust the standby pressure up above 2000 psi i removed the plug with the adjusting bolt and i put 3 thin washers under the spring. That raised my standby pressure up to 2600 psi. Now if i dig into the ground real hard with the stabalizers down and rear...
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    Older Jd 510 Weak Hydraulics Intermitent

    Yes the pump has a small line going to it at the rear bottum of the pump i will trace that line to where it goes and see if it is bent or kinked or something. Thank you for the help.
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    Older Jd 510 Weak Hydraulics Intermitent

    Well i finaly got to work on my backhoe again. I removed the whole valve block lot heavier than i thought. There are 3 plugs 2 are on the swing valve in the back and 1 is on the boom on the bottom back they look just like a vale in a gas engine with a spring to keep them seated. All 3 springs...
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    Older Jd 510 Weak Hydraulics Intermitent

    Yes it is a radial type piston pump.
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    Older Jd 510 Weak Hydraulics Intermitent

    Well i checked the priority valve. I hooked a pressure guage to it it was only reading 1200 psi while i worked the bucket so i added 2 thin shims inside brought it up to 1400 psi. Accoding to the book it should have 1450 psi but when i added a 3rd shim it was a little over 1500 psi. I didn't...
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    Older Jd 510 Weak Hydraulics Intermitent

    Thank you for the advice. It has not gotten above 20 degees here for the last week so i won't be able to work on it for a couple of days, but i will give that a try.
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    Older Jd 510 Weak Hydraulics Intermitent

    Well i replaced the stroke valve 479.00 and took the pump completely apart, no problems in the pump bougth an overhaul kit for it and put it in. Took a pressure reading on standby the pump has 2300 psi. The transmission pump output is 170 psi. I still have the same problem. If i take and curl...
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    410b hydraulic pump

    I would try to find out if the whine is coming from the pump or one of your valves. What i would do is get a long screw driver let the machine warm up, put the end of the screwdriver against the pump, then put your ear on the handle. Have someone move the bucket on the backhoe while you listen...
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    410b hydraulic pump

    The solenoid on the pump is just used to exaust pump pressure while you are cranking on the starter, so it does not build pressure until you let off the key when it starts.
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    Jd 2355

    Might Be Air Did You Have The Play In The Steering Before It Blew One Of The Lines Or Did It Start After A Line Blew And Then You Fixed The Line?
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    Older Jd 510 Weak Hydraulics Intermitent

    1976 510 While Using The Backhoe Sometimes It Just Has No Power To Dig. I Have Found That If Trying To Curl The Bucket Or Uncurl If I Just Hit The Boom Lever Up Or Down It Will Get More Pressure To The Bucket For A Second. Same Thing With The Dipper. If You Try To Use Just One Sometimes It Has...
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    Volvo Backhoes

    Their Loaders Are Very Nice To Operate Lots Of Power Not Much Down Time Do To Breakage Have Not Seen Backhoe.
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    Buying a backhoe

    I Bought A 76 Jd 510 Backhoe At An Estate Auction Family Said Well Taken Care Of But Was Worked Alot, Machine Started Good Sounded Good The Front Bucket Whent Up And Down Good All The Pins Were Tight And Looked Like They Were Greased Regularly. With The Amount Of People And Kids At The Auction...
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    How Did You Find Us?

    New Member Here Buffalero I Found The Site Through Google, I Typed In John Deere Backhoe With Hydraulic Problem. This Is One Of The Sites That Came Up.
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