TOHATSU 40 Service Manual page 316

Use the following precautions during disassembly
and assembly of the PT/T unit:
• PT/T exterior must be thoroughly cleaned be-
fore disassembly to prevent contaminants
from entering the hydraulic system.
• Use the required special tools to prevent dam-
age to components.
• Perform all workwith PT/T unit secured in pad-
ded vice or test stand.
• DO NOT force the disassembly or assembly of
any part.
• DO NOT attempt to disassemble the internal
pump components.
• Clean all components removed and keep them
free of dust and other debris by placing them
on clean paper. DO NOT lay parts on shop rags
or other cloth materials.
• Verify components are within wear limits and
are not damaged before assembly.
• Apply specified PT/T oil to all internal parts
before assembly.
• Torque all valves and fasteners to specification.
Tilt and Trim Cylinders
Guidelines:
1. Use special tools as specified for removing and installing the rod
guides.
2. Before assembling, apply specified PT/T oil to inner surface of tilt
cylinder and/or manifold and all internal cylinder components,
especially o-rings and backup rings.
3. Apply Loctite 242 to the tilt rod nut and torque to specification.
4. Install piston rods as follows:
• Fill bottom of cylinder with specified PT/T oil.
• Insert piston rods into cylinder and push downward until level
with oil surface.
• Fill remaining portion of cylinder with oil.
• Tighten the rod guides.
3-/ 4-Cylinder
CAUTION
POWER TRIM/TILT
8-17