1996 Johnson Evinrude "ED" 40 thru 55 2-Cylinder Service Manual, P/N 507124, Page 308Get this manual

1996 Johnson Evinrude "ED" 40 thru 55 2-Cylinder Service Manual, P/N 507124, Page 308

Component Description CHECK VALVEWhen opened by pump pressure, it directs fluid to bottom of cylinder to move piston UPWhen
it controls the UP and DOWN check valvesTogether, they control fluid direction and cylinder movement RELIEF VALVEOpens at
approximately 1600 PSI (11,032 kPa) to protect the unit from extreme operating pressures when the cylinder is completely
retractedpressures caused by thermal expansion of the fluid f4l EXPANSION RELIEF VALVEProtects the unit from extreme f51
UP RELIEF VALVEOpens mechanically when the cylinder is completely extended to protect the unit from extreme operating pressuresf51
IMPACT RELIEF VALVESOpen under the extreme cylinder pressure generated by an underwater impact and allows the cylinde rod