2001 Mercury Mariner 50-60HP Factory Service Manual, Page 388Get this manual
MANUAL TILT ASSIST
bBlowing compressed air into center o-ring hole
WARNING
Memory piston cup may be expelled at high velocity when air pressure is appliedFailure to place cylinder as shown below could result in personal injury
NOTE: Point cylinder opening down and awayUse shop rag or towel to avoid damage to the memory pistonFluid will blow out also2Remove O-ring from memory piston