mf135 hydraulic disingage !!


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mf135 hydraulic disingage !!

Jan Nel My 135 keep "loosing" its hydrolics. I have traced it to the tubular valve with the v-shape cutout that regulates the amount of oil being pumped into the lift sylinder. This valve pushes too far out and then gets cocked and hangs-up.

Have tried all sorts of adjustments to prevent the over travel, no sucess. When the 3 point goes to low down (crapeblade digs in, post-hole digger digs low) is when the cyclinder get hung, the pump pumps oil but it does not get pumped up to the cyclinder, everthing goes to the by-pass.

How do I correct this problem?
Are the springs inside this control valve weak and allowing the over travel?
should I simply bevel the edge of the valve and prevent it from being able to get stuck?

I have gotten so good at dreining oil, taking side cover off, beating on control lever (start engin and tap om top of lever) till it pops back into working place, takes about 45 minutes, start to finish. I'm about to sell the tractor just to get rid of the agrivation!!

HELP!



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