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Topic: Re: used 100 h.p. tractor purchase
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| low budget
07-16-2009 07:14:13
170.215.214.112
20707
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You are correct that the utility (Manheim) Deeres are prone to hyd problems, but I have found its usually leaks in the low pressure (transmission)system.
The transmission pump is a gear type open center pump that provides oil under controlled pressure (about 175 psi)to apply the pto clutch and HiLo clutch, oil not used for those functions supplies the main pump, and then goes on to the cooler and supply the brake reservoir and transmission lubrication.
Too much leakage = no hydraulics, possible loss of brakes, and lack of trans lubrication. Lots of internal lines and O-rings for leakage to develope. Any leakage in the main hyd makes things even worse.
I much prefer the simple system my Ford 5000 and 7700 have.
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| RodInNS
07-16-2009 10:32:54
216.118.158.123
20709
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| Mostly 3130's and 40's that I've seen around here. They've been plauged by both high and low pressure leaks. I think it's a coin toss as to which is worse on this bunch that a couple of guys own as I think every one has had several of both.
To be fair, the Ford's can get leaks in their low pressure clutch circuits too. I've had a few of them on my own... Blown O-rings, bad regulating valves, cracked tubes and such things and nearly the only way to find some is by pulling the lift cover, diverting the main pump flows... and run it to find the leaks.Rod
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