2006 Johnson SD 30 HP 4 Stroke Outboards Service Manual, PN 5006592, Page 191Get this manual
MIDSECTION STERN BRACKETS, STEERING ARM, AND SWIVEL BRACKET Remove the retaining ring and push out the tilt cylinder upper rodRemove the PTT unit (or tilt assist cylinder)
1PTT unit (or tilt assist cylinder) 1Tilt cylinder upper rod
Remove the tilt tube nut from the stern bracket
Remove the bonding wire from the port side stern bracketPull the stern bracket outward to remove it and the tilt tube from the swivel bracketRemove the bushings from each side of the swivel bracketTilt tube nut