1995 Johnson/Evinrude Outboards 25, 35 3-Cylinder Service Manual, Page 252Get this manual

1995 Johnson/Evinrude Outboards 25, 35 3-Cylinder Service Manual, Page 252

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