Mercury Mariner Outboard 225 3 Litre Service Manual 1994, Page 329Get this manual
STEERING LINK ROD INSTALLATION
Maintenance Instructions
Maintenance inspection is owner's responsibility and must be performed at intervals specifiedfollowingNormal ServiceEvery 50 hrsof operation or 60 days (whichever comes first) Severe ServiceEvery 25 hrsof operation or 30 days (whichever comes first) Operation in salt water area is consideredSevere Service1Carefully check steering system components for wearReplace worn parts2Check steering system fasteners to be sure that they are torqued to correct specifications
IMPORTANT: The steering link rod that connects the
steering cable to the engine must be fastened using
special washer head bolt ("a"Part Number 10-14000) and self locking nuts ("b"" c"Part Num ber 11-34863)These locknuts must never be replaced with common nuts (non locking) as they will work loose and vibrate off freeing the link rod to disengage