Re: 4320 vs 4020

Posted by low budget on January 04, 2007 at 04:32:42 from (170.215.211.18):

In Reply to: Re: 4320 vs 4020 posted by Reaver on January 03, 2007 at 15:48:29:

The syncro side consoles have a hyd engaged PTO, still the dry clutch but uses a slave cylinder to engage it. The control valve may be leaking, not cheap but should be easy to get to. The slave cylinder may leak too, I have a 4020 with that problem in the shop for future repair, need to split it for that. I've heard the differential lock valve and lines can leak too. That gets invoved in tearing the differential apart I believe. Also on the side of the transmission, where Gerald puts his external check valve on his early models, is a valve body that contains check and surge pressure relief valves, could be a problem there. Could also be a very weak transmission pump or one thats drawing air for some reason. The newest of the 20 series are now 35 years old and all these things wear out eventually, the hyd system is so integral to the operation of these tractors that it can be a real headache trouble shooting and repairing things, but it can be done.

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