TOHATSU BFT75A Service Manual page 519

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TRIM/TILT
4. Lower the outboard motor slowly to the lowermost
position by loosening the manual valve [1].
5. Tighten the manual valve to the specified torque.
TORQUE: 3.4 N·m (0.35 kgf·m, 2.5 lbf·ft)
6. Hold the outboard motor in the lowermost position
for five minutes.
7. Then, push the "UP" side of the power trim/tilt
switch, and raise the outboard motor to the
uppermost position. Hold the outboard motor in this
position for five minutes. After five minutes, check
the fluid level in the oil tank.
8. Repeat the procedure from step 4 through 7 five
times.
HYDRAULIC PRESSURE CHECK
After bleeding air from the power trim/tilt without
installing on the outboard motor and checking each rod
for proper compression, perform the following operation
in the same manner as bleeding air without installing on
the outboard motor.
– Be sure each rod is extended fully.
– Check the hydraulic pressure both at the upper and
lower chambers.
Lower chamber hydraulic pressure
Remove the internal circlip [1] and manual valve [2]
from the power trim/tilt.
A small amount of oil will flow out when the manual
valve is removed. Catch it with a container.
Install the special tool where the manual valve was
removed as shown and tighten it to the specified torque.
TOOL:
Oil pressure gauge joint B [3]
TORQUE: 9.0 N·m (0.92 kgf·m, 6.6 lbf·ft)
Attach the special tool to gauge joint B as shown.
TOOL:
Pressure gauge, 0 – 5,000 psi [4] 07KPJ-VD6020B
18-38
[1]
07SPJ-ZW1020A
[4]
Tighten
Loosen
[2]
[1]
[3]