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Re: IH 686 Tractor- 70's
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Posted by JB2 on November 09, 2005 at 17:21:05 from (72.56.121.128):
In Reply to: Re: IH 686 Tractor- 70's posted by 7D Ranch on November 09, 2005 at 16:54:31:
Hi 7D, according to my I&T Shop Service manual for 544 thru 686 P.105 paragraph 302, to check the hydraulic lift system relief valve requires a Flo-Rater test guage. If the release pressure is less than 1800 psi then replace the relief valve. It does not give a location for the relief valve. On P.111 it shows an exploded view of an aux control valve and there is no relief valve build into the aux control valve. Some loaders that have their own hydraulic control valves have a relief valve built into the control valve and it is behind the big nut beside the control levers. Hope this helps
JB2
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