Re: 424 Hydraulics/ 3 point

Posted by Haas on April 11, 2006 at 06:43:56 from (12.65.31.35):

In Reply to: 424 Hydraulics/ 3 point posted by Michael Sheik on April 11, 2006 at 04:54:34:

Without an implement do the arms stay up with when you shut off the tractor?? If not, you have a problem with either the control valve or the lift cylinder. Since the arms won't go up with a load, I suspect the cylinder. There is a shut off valve on the 424 to isolate the cylinder. Look in your manual (hope you have one) and find the valve. Raise the lift arms and close the valve and then shut off the tractor. If the arms go down with the controls still in the raised condition, then the cylinder is not holding. The original pistons on these tractors had a leather seal. To fix this, you will have to remove the top from the hydraulic unit and take it apart enought to get the piston out of the cylinder. They don't have the leather seals anymore, you have to replace the piston with a new one that is made for O rings or take the piston (if it is good enough condition) to a machine shop and have O ring groove cut in it. You'll have find someone that knows what they are doing to properly size the O rings and grooves. The new piston from IH is quite expensive. You can go to a Mahindra dealer and get the piston which will fit for about half the IH price. The early Mahindra tractors were direct copies of the 424 except for the sheet metal. I once owned a 424 and had this same problem which is why I have this info. It's a great tractor. I only sold mine because it did not have Power Steering.

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