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Mf 35 weak hydraulics

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ron e

07-09-2003 09:11:43

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anybody know what to check to get hydraulics to lift higher. i have changed the trans gear oil using M1103 but didn't help any. when the blade is on it, it will only lift to get blade about 6 inches off the ground. any ideas appreciated.

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Paul

07-09-2003 16:32:15

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Re: mf 35 weak hydraulics in reply to ron e, 07-09-2003 09:11:43

Have you replaced the filter?. If it is blocked you may find the system will not work at 100%. I had a similar problem with My 135 & a simple filter change ( changed the oil too ) saw the old girl working like a trojan again. Good luck

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David UK

07-09-2003 15:37:07

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Re: mf 35 weak hydraulics in reply to ron e, 07-09-2003 09:11:43

Here's my guess.

Assuming oil level is correct and oil type is correct, does it lift higher when you help it by lifting by hand too or when there's no weight on it? If so, then you may have either a leaking pressure relief valve, leaking lift cylinder, leaking oil pipe from pump to top cover, leaking pump valves, or worn pump piston elements. You can eliminate the first three by removing the left hand side cover and looking for a turbulence in oil at rear of pump(relief valve) or an obvious oil leak from the dodgy bit. After that I'd suspect the pump itself. - which is about as far as I've got with figuring out my own weak hydraulics problem. (or rather my tractor's problem - mine are fine)

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tony trude

07-28-2003 12:20:15

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Re: Re: mf 35 weak hydraulics in reply to David UK, 07-09-2003 15:37:07

hello,,i have a similar problem wih mine but it is only on one of the rams so it is not the pump.Does anyone have technical data on the hydrolics as i have never worked with them before but have with most other mechanical items.I am actually writting up data as i discover it(trial and error) that i will make avalibe when finisherd but,if anyone already has it it would be nice to hear from you.Good luck all,tony trude

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