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JCB JS 220 river rig

JCB JS 220 river rig prop control circuits 

Latest project from N D Mechanical services JCB JS 220 river rig up dated with additional circuits ,circuits fitted , double acting prop control circuit for tree shears and pile hammer ,using our latest proportional control circuit which gives thumb wheel control for open /close of tree shear circuit and by changing a simple switch a lower flow to work a vibrating pile hammer