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4520 rockshaft won't raise or respond

17K views 18 replies 8 participants last post by  jenkinsph 
First would check the feedback linkage on the left rockshaft arm. #29 in first picture. Make sure it isn't broken or disconnected. Then if all linkage on outside of rockshaft is ok, then the control valve is probably at fault. It is # 31 in second picture. Rockshaft housing needs to be removed for access.
 

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