MTA hydraulics

Anonymous-0 · Jul 29, 2010

hydraulics don"t hold plow up as it settles, was wondering if a check valve can be put into the lines any help will be greatly appreciated

IH fan · Jul 29, 2010

A standard check valve wouldn't work. When you lift the plow it could help to hold it up..... permanently. However, there is such a thing as a "pressure release" ([i:2a2553adb1]maybe not the correct name, but I've been retired for 8 years and sometimes it takes a while for these things to come back[/i:2a2553adb1]) check valve that will free flow one way and then a pilot line from the "down pressure" side will unseat the check and allow flow the other way. Not a very practical thing in this case unless it could be plumbed in on the tractor side of your disconnects. I used them in a few cases in hydraulic systems on factory machines, but never on a mobile machine that I recall.
If you are sure it's not a bad cylinder, I'd dig into the tractor valve and get it fixed.[/code]

mkirsch · Jul 30, 2010

The REAL fix here is to repair or replace the leaking hydraulic valve.

tobaccoman · Jul 30, 2010

Yep, a check valve(at least that is what I call it) will work. Have one on my Super MTA that has been working well for 20+ years now. Just take the check valve from a 300-450 tractor(located on these tractors at the rear of the battery box) and splice it into your hydraulic lines.

JMOR · Jul 30, 2010

(quoted from post at 20:21:47 07/29/10) A standard check valve wouldn't work. When you lift the plow it could help to hold it up..... permanently. However, there is such a thing as a "pressure release" ([i:38478f909d]maybe not the correct name, but I've been retired for 8 years and sometimes it takes a while for these things to come back[/i:38478f909d]) check valve that will free flow one way and then a pilot line from the "down pressure" side will unseat the check and allow flow the other way. Not a very practical thing in this case unless it could be plumbed in on the tractor side of your disconnects. I used them in a few cases in hydraulic systems on factory machines, but never on a mobile machine that I recall.
If you are sure it's not a bad cylinder, I'd dig into the tractor valve and get it fixed.[/code]

hose are just free flow one way & metered flow the other (keeps implement from being dropped hard, instead lets it down gentle)...but won't solve his problem, as implement will still settle.

MTA hydraulics

Anonymous-0

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IH fan

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mkirsch

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tobaccoman

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JMOR

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