Massey 255

Patriot8millga · Mar 20, 2019

My hydraulic system is weak. The harrow I have is heavy, it lifts it but immediately starts to leak down. The fellow I purchased it from replaced the lift cylinder ( with a used one) before I got the tractor. I don?t want to purchase a pump if it could be the cylinder or something more simple. Thanks in advance for your help.

Steve@Advance · Mar 20, 2019

It could be the cylinder, or the pressure relief valve, an internal leak. Pump maybe, but that would be an expensive guess.

A shop manual would be real handy to have before going in.

Here's a how to, has a lot of factory equipment, but a good pressure gauge could probably get you by.
Hydraulics Repair

ptfarmer · Mar 20, 2019

The 3 point on a 255 should be able to lift up to 3800 lbs. If the harrow will stay up in the position you put it in with the engine running the pump should be ok. I would say that 95% of the time it's a leaking lift cylinder, I would get the lift cylinder https://www.yesterdaystractors.com/Massey-Ferguson-255_Lift-Cylinder_1671082M1.html, and the piston https://www.yesterdaystractors.com/Massey-Ferguson-255_Hydraulic-Piston_1665738M91.html with the seal kit part number 2528201K1.

Patriot8millga · Mar 20, 2019

Yessir, it leaks down with the tractor running. I
would think that if it had a small cylinder leak, the
pump could overcome it. Even without anything
hooked on the hitch, it?ll leak down when the engine
is off.

Dieseltech · Mar 20, 2019

Three point will always settle down with engine off, it's designed that way. Some will drop faster than others..

Massey 255

Patriot8millga

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Steve@Advance

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ptfarmer

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Patriot8millga

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Dieseltech

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