Posted by pete 23 on January 08, 2011 at 17:29:43 from (173.87.15.134):
In Reply to: 1086 help posted by deere4840 on January 08, 2011 at 05:19:01:
Power steering relief valve in lower right hand corner of mcv, comes out the bottom. It is not unusual for the o-ring on it to wear out, get cut or wrong one put on. Also, it is a spring loaded valve that is preset and then the screw in end is staked to keep it at that setting. Screw may be loose and backed out or may have a small piece of crap under valve. Take the plug out and if relief valve doesn't want to come out for inspection, just start tractor and it will blow it out. You can install a gauge to check steering pressure but don't put gauge in that port as it will read regulated pressure which is much lower. Take out the plug with the 5/8th head on it to check pressure. Can't remember if it should read 1700 or 2200 on the 86 series. Check orfice behind plug for restriction also. If it would steer good at high engine speeds but not at low speeds the flow divider may be stuck or sticky.
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