1991 Johnson/Evinrude EI 60 thru 70 outboards Service Manual, Page 301Get this manual
Disassembly Thoroughly clean unit before disassemblingScrub all outside surfaces with stiff bristle brush and hot, soapy waterThis will prevent dirt particles or other foreign matter from entering the unit while working on it ill sive temperature can cause high pressure leaks or failure of
partesAlways use "lint free" shop cloth when handling power trim and tilt componentsIf painting the unit is required, paint it after it is completely assembledPainting of individual components may cause flakes of paint to enter the hydraulic passages during assemblyTape the trim and tilt rams before paintingf1l 1Be sure the manual release valve is screwed in all the wayRemove retaining ring using OMC Retaining Ring Pliers PIN 303857Remove manual release valvef21 2Inspect O-ring and two plastic split rings on the manual release valve for nicks and cutsInspect tip of valve for damageThe two plastic spit rings are not servicedIf rings are damaged, replace the manual release valve 3Remove cap and drain fluid into containerInspect O-nng In cap1sl 4Remove the three Pozi-Driv screws securing the reservoir to the cylinder bodyRemove reservoir23370