TOHATSU BFT75A Service Manual page 510

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ASSEMBLY
• Do not reuse O-rings and oil seals.
• Do not use a shop towel or equivalent cloth, and do
not wear gloves during this operation.
• Do not reuse the drained ATF.
• When holding the cylinder in a vise, do not tighten
the vise excessively.
• Add ATF slowly.
• Assemble the power trim/tilt with piston rod A and
piston rod B fully extended. Do not push in piston rod
A and piston rod B.
• Do not allow dust, dirt, and other foreign material to
enter the cylinder and the pump during assembly.
• After assembly, coat the joints or mating sections of
the parts and any sections where the paint came off
with rust preventive paint of the same color.
Clean the parts with fresh ATF and blow each port with
compressed air to remove dust and dirt. Check that the
parts are clean before assembly.
Hold the cylinder [1] in a vise [2] with a shop towel or
soft jaws as shown.
Do not tighten the vise excessively, as it can damage
the cylinder.
Pour approximately 30 cm
piston rod chamber of the cylinder [1].
RECOMMENDED OIL:
Genuine Honda Automatic Transmission Fluid
(ATF) DEXRON
Apply ATF to a new O-ring [2] and new backup ring [3].
Install the backup ring and O-ring on the free piston [4].
Install the backup ring on the free piston with care not to
break it.
Apply ATF to the circumference of the free piston and
push it in the piston rod chamber slowly until it bottoms
out.
After fully installing the free piston, pour fresh ATF
slowly up to the top of the piston rod chamber of the
cylinder.
3
(1.0 fl oz) of ATF into the
® , or equivalent
[2]
[4]
Pour slowly up to the
top of the piston rod
chamber
TRIM/TILT
[1]
[3]
[2]
[1]
18-29