Just trying to get my "extra and breaker" hyd circuit working on the SK130lc. There is pilot pressure to the spool housing of the auxiliary valve at 500psi when I activate the foot valve. Pilot pressure at the pilot pump is 700 psi. No reaction from the main circuit the thumb doesn't move as if the spool is jambed/broken. Has anybody else with one of these machines seen an internal failure in these auxiliary valves like this? These things are so well built that it's hard to believe an internal failure is responsible.Could there be something else causing this?
Kobelco SK130LC auxiliary valve trouble
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