1998 Johnson Evinrude "EC" Accessories Service Manual, P/N 520213, Page 137Get this manual
Power TrimTilt Servicing Removal 13-Cylinder and V4Mark angle adjusting rod location and remove rod2Lift engine manually and engage tilt support3Remove blue and green wires from pump motor connector housing
rn 4Remove spring clip from tilt cylinder pin.5Remove tilt cylinder pin with punch and mallet
rn starboard, holding the unit to theRemove three screws, port 6Manually retract tilt cylinderand stern bracketsrn 7vaRemove one nut from each thrust rodRemove thrust rods from stern brackets14AI
8Remove trimtilt unitPull motor cable through the stern bracketDisassembly 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 you are working on itMount the unit on OMC Power Trim and Tilt Test Stand, PIN 390008Place the unit and stand in shallow tray to catch the hydraulic oil as it drains from the unitNeutralize the internal pressures of the power trimtilt unit before disassemblingUsing battery, operate the unit until the trim and tilt cylinders are completely downReverse the connections on the battery and momentarily operate the unitThere may be high pressure behind some check valves and in hydraulic linesTo prevent possible eye injury, when removing lines and check valves, be sure to keep clean, "lint free" shop cloth covering them until the pressure is releasedUse eye protection