2001 Mercury Mariner 50-60HP Factory Service Manual, Page 381Get this manual
MANUAL TILT ASSIST
Manual Tilt System Removal
CAUTION
Remove cowling and remove all spark plug leads from spark plugs to prevent accidental starting while servicing outboard
WARNING
Service or installation of the tilt system may result in loss of pressure in the shock cylinderIf the outboard is not in the full down position, such loss of pressure will cause the engine to fall to the full down position with potential for damaging engine or causing personal injuryTo avoid such injury support outboard in the up position using tilt lock lever