jd 4230 rock arm linkage adjustment

jim_uny

Member
rock arms would not lower. i removed linkage and rotated manually. worked aok up & down but way out of range for linkage. how do i tighten up ? i have older style valve operating shaft with one hole. i put inside hook spring into highest lug on quill which was tightened to 100 ft lbs. (was previously loose) operating arm can only go in one position. arms will go up but not down. how do i adjust ? i assume that this has nothing to do with friction device and control lever.
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I don't ever remember ever having to relocate spring you referred to. Is large quill nut(key 19) tight in RS control valve housing? Have you tried loosening rate of drop screw on RS piston cap?
 

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