1995 Johnson/Evinrude Outboards 40 thru 55 2-Cylinder Service Manual, Page 299Get this manual

1995 Johnson/Evinrude Outboards 40 thru 55 2-Cylinder Service Manual, Page 299

Component Description UP CHECK VALVEWhen opened by pump pressure, it directs fluid to bottom of cylinder to move piston UPWhen
the UP and DOWN check valvesTogether, they control fluid direction and cylinder movementDOWN RELIEF VALVEOpens at approximately
1600 PSI (11,032 kPa) to protect the unit from extreme operating pressures when the cylinder is completely retractedEXPANSION
RELIEF VALVEProtects the unit from extreme pressures caused by thermal expansion of the fluid f51 UP RELIEF VALVEOpens mechanically
when the cylinder is completely extended to protect the unit from extreme operating pressuresf51IMPACT RELIEF VALVESOpen
under the extreme cylinder pressure generated by an underwater impact and allows the cylinder rod to extend 'sl FILTER VALVE