1997 Johnson Evinrude "EU" Accessories Service Manual, P/N 507270, Page 128Get this manual
TroubleshootingGauge Set, PIN 390010 The ONIC TrimlTilt Pressure Tester, PIN 390010, allows external verification of trimltilt operation and component condition The" A" adapter, PIN 395618, checks operation of the UP circuit and all components listed on Page 4-46 The "B" adapter, PIN 395619, checks operation of the DOWN circuit and all components listed on Page 4-47Tests must be made with the hydraulic unit removed from the engine and mounted in ONIC Test Stand, PIN 390008
INote a-rings on
end of adapters can wear out during normal useUse a-ring, PIN 332930, as replacementUse an adhesive such as Loctite Black Max or Dupont Krazy Glue to secure the a-ring to tip1Install hydraulic unit in ONIC Test Stand, PIN 3900082Remove manual release valve retaining ring using retaining ring pliers