Yamaha F150B Service Manual

Also see for F150B: Owner's manual Service manual Owner's manual

9-53BRKT Bracket unit2. Remove the nut a, and then remove thetilt piston absorber valves b.Checking the tilt cylinder and trimcylinder1. Check the inner surface of the PTT bodya. Replace the PTT body if scratched.2. Check the outer surface of the tilt pistonb, trim pistons c, and free piston d.Replace if scratched.3. Check the dust seals e of the endscrews f and g. Replace if damaged orworn.4. Check the trim rams h and tilt ram i.Polish with 400–600 grit sandpaper ifthere is light rust or replace if bent orexcessively corroded.Checking the valve1. Check the tilt piston absorber valves a.Clean if there is dirt or residue.Assembling the tilt ram• Do not use a rag when assembling thePTT unit because dust and particles onthe PTT unit components can lead topoor performance.• Do not reuse the dust seal and O-rings,always replace them with a new ones.1. Install a new dust seal a and new O-rings b and c to the tilt cylinder endscrew d.a bbcceeeffhighdaa