Overview
Operation Manual -
All SP Rock Valve Models50
revDate
Phase H
High pressure oil from the switching valve (6) has not
shifted the S3 valve (3) fully to the left hand position.
At this point the pressure oil to the rock valve shift
cylinder (4) is changed and the left hand side of the
cylinder is getting oil so that the cylinder will retract.
Oil from the right hand side of the rock valve shift
cylinder (4) is being routed to tank via valves (3, 1) and
filter (7).
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