1988 Johnson Evinrude CC 60 thru 75 outboards Service Manual, Page 334Get this manual
491 1501 r-:;-,
31Remove the high pressure port O-ring 32Remove the trim-down relief valve and spring
33Clean and inspect the components of the trim-down pump relief valveReplace the rubber sealif necessaryThe seal can be easily removed from the valve with your fingernailPress new seal in place with the ridge facing out34Remove the spring from the expansion relief valve35Remove the expansion relief valve core36Remove the expansion relief valve seat37Clean and inspect all the components of the expansion relief valveReplace all O-rings, if necessary38Remove the two check valves CD across the front of the manifold using drag link socket or similar toolThese two check valves are identicalLocated on the lower port side of the manifold is the tilt trim separation valve Q)Remove the valveThis check valve is longer than the other two check valves