TOHATSU BFT75A Service Manual page 492

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INSTALLATION
• Check that the piston rod of the power trim/tilt is extended fully.
Apply marine grease to the inner wall and outer surface
of the swivel case bushings [1] and install them on the
swivel case [2].
Apply marine grease to the circumference of a new O-
ring [3], and install it in the groove [4] in the tilting shaft
[5] securely.
• Install the O-ring in the groove inside the tilting shaft
that is on the side of the short threaded end [6] of the
tilting shaft.
Apply marine grease to the tilting shaft bearing area.
Apply marine grease to the swivel case and to the shaft
installation part on the L. /R. stern bracket [7].
Tighten new self-locking nut (7/8-14 UNF) [8] on the
long threads end [9] of the tilting shaft.
• Tighten the self-locking nut (7/8-14 UNF) fully to the
end of the threaded part of the tilting shaft.
Apply marine grease to the wave washer [10].
Set the R. stern bracket and the wave washer on the
tilting shaft.
Pass the tilting shaft through the swivel case.
Apply marine grease to the wave washer [1] and install
it on the tilting shaft [2].
Apply marine grease to the inner wall and outer surface
of the lower cylinder bushings [3], and install them on
the power trim/tilt [4].
Apply marine grease to the outer surface of the lower
cylinder collar [5] and install it in the power trim/tilt.
Raise the swivel case [6] to the uppermost position and
secure it in the position using the tilt stopper.
Route the trim angle sensor wire and the power tilt
motor wire through the hole in the L. stern bracket [7].
Install the lower cylinder collar, which has been
installed in the power trim/tilt, in the R. stern bracket [8].
Install the L. stern bracket on the tilting shaft.
Loosely tighten new self-locking nut (25 X 2.0 mm) [9]
on to the tilting shaft.
[6]
[4]
[1]
[3]
[10]
[2]
[1]
[9]
[7]
[4]
[3]
TRIM/TILT
[5]
[9]
[2]
[8]
[5]
[7]
[6]
[8]
[5]
18-11