When the first or second valve of the extension side or compression side pressure control valve is opened, {HEAD ~ fluid} is discharged from the guide bore into either of the two chambers in the cylinder through the communication passages and {TAIL ~ the first or second check valve} 
is discharged through
When the first or second valve of the extension side or compression side pressure control valve is opened , { HEAD ~ fluid } is discharged from the guide bore into either of the two chambers in the cylinder through the communication passages and { TAIL ~ the first or second check valve }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL