TOHATSU BFT75A Service Manual page 518

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7. With the rods extended fully, operate the power tilt
motor to extend each rod until the relief valve opens
again. Operate the power tilt motor to compress
each rod and be sure that the rods compress (page
18-38).
If the rods extend and compress fully, go to the
hydraulic pressure check (page 18-38).
8. If the rods do not compress after the step 7
operation, operate the power tilt motor to compress
each rod (page 18-36) while pushing piston rod B
[1], and check whether the rods compress.
If the rods extend and compress fully, go to the
hydraulic pressure check (page 18-38).
9. If the rods still do not compress after the step 8
operation, loosen the manual valve [2] and
compress each rod. Tighten the manual valve
securely again. Operate the power tilt motor to
extend each rod fully, and then operate the power tilt
motor to compress the each rod and check whether
the rods compress fully (page 18-36).
If the rods extend and compress fully, go to the
hydraulic pressure check (page 18-38).
10.If the rods do not compress after the above
operations, perform the following.
– Disassemble and assemble the power trim/tilt (page
18-41).
– Bleed air with the power trim/tilt not mounted on the
outboard motor (page 18-37).
Air bleeding with the power trim/tilt on the outboard
motor
Perform the following procedure after bleeding air
without mounting the power trim/tilt on the outboard
motor and after checking the hydraulic pressure.
1. Install the power trim/tilt on the outboard motor
securely (page 18-11).
2. Push the "UP" side of the power trim/tilt switch, and
raise the outboard motor to the uppermost position.
3. Remove the oil tank cap [1], and check whether the
ATF is at the upper limit [2] of the oil filler port. Add
ATF if necessary.
[1]
[2]
[2]
[1]
TRIM/TILT
18-37