1995 Mariner Mercury Outboards Service Manual 50HP 4-Stroke, Page 202Get this manual
6 Remove nuts and washers securing lower pivot pinRemove lower pivot pin
aReservoir CapManual Release Valve
45IMPORTANT: Retain clamp bracket bushings and trim pump assembly bushings when removing lower pivot pin
Secure power trim assembly in soft jaw viseRemove end cap assembly from cylinder using spanner wrench Special Tool 91-74951Lift power trim unit upward and out from between clamp brackets
Power Trim System Disassembly
Shock Rod Removal
IMPORTANT: Power trim system is pressurizedOutboard must be in the full "UP" position (trim rod fully extended) prior to filldrain plug, or manual release valve removalRemove shock rod assembly from cylinder