Re: 4430 Jerky hydraulics

Posted by P O'ed at 4430 on October 26, 2006 at 08:21:25 from (216.16.57.188):

In Reply to: 4430 Jerky hydraulics posted by 9500hp on October 26, 2006 at 07:46:30:

I have the exact same problem with a 4430 power shift which has a higher volume pump than a quad. Done the things you've done with no success. Have been working with a mom and pop hydraulic shop and they think they have a cure , but I haven't had time to get the tractor back to them. Any way they put some sort of update kit in the hydraulic valve pack on the side of the tractor under the cab. They have done several now and say it works well. A test they had me do was to take the ball and spring out of that valve marked C I believe and test it . Boy did I have good hydraulics with no chatter that way but the oil got too hot. They said that by doing that you are bypassing the oil cooler. It was only for testing purposes though.

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