1991 Johnson/Evinrude EI 60 thru 70 outboards Service Manual, Page 313Get this manual
Component Description r:;] Trim-up Relief ValveThis valve controls maximum oil
pressure in the system during trim-out tilt-upIt also bleeds oil to the reservoir when the engine is run at speeds over 1500 RPM (approximately) in the partial-tilt position This allows the engine to return to the maximum trim -out position
Manual Release ValveThis device allows manual tilting movement of the engineWhen this screw is loosened, the engine will not move in the trim range
r:;] Tilt CylinderThis hydraulic cylinder moves the engine through the tilt range onlyIt also absorbs the shock of hitting an underwater object
Tilt Check Valve
EJ from the oil pump to the underside of the tilt piston while
trimming out and tilting upr:;] Filter ValveThis valve supplies oil to the top side of the
This valve pro.vides a
tilt cylinder as it retracts when coming off shallow water drive modeThe valve also filters the oil
Trim Check Valve
EJ separation valve, isolates the trim cylinders from the rest of
This valve, along with the trimtilt