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Ford 770A loader hydraulics lift cylinder shaft won't move.

I have a Ford 770A loader on a 1910 tractor, with leaks at the seals on the lift cylinders. I bought rebuild kits and set to work using the owner's manual to disassemble the cylinders. First I rotated the cylinder head to thread out the wire ring. Next I was supposed to push the cylinder shaft all the way in and rotate it but I was unable to budge it. I disconnected the hydraulic hoses to prevent any pressure on the cylinder but it still doesn't move at all. Any ideas? Thanks.

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Hello there:
when you dissconnected the hoses did you turn the cylinder upside down and let it drain cause some hydraulic lift assybelies have a small chamber in the head of them that retain fluid and with out removing the fluid it will do a hydraulic lock and wont be able to move untill you losen the bleeder screw if it has one ok please let me know how this goes for you

Posted on Sep 10, 2009

  • Anonymous Jul 12, 2017

    Your. Piston on the bottom of the rod may have cam appart,you will need a new cylinder

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