Air Bleeding - TOHATSU BFT115A Service Manual

AIR BLEEDING

• Bleed air from the unit whenever the power trim/tilt is
assembled.
• Perform the following procedure to bleed air:
1. Bleed air without mounting the unit on the outboard
motor.
2. Check hydraulic pressure (page 19-39).
3. Bleed air after mounting the unit on the outboard
motor.
Power trim/tilt not mounted on the outboard motor
1. Connect each cable to operate the power trim/tilt.
– Connect the positive (+) and negative (–) starter
cables.
– Connect the power tilt motor 2P connector to the
power tilt relay.
– Be sure that the starter cables are connected to the
battery.
2. Hold the power trim/tilt vertically.
3. Push the "DN" side of the power tilt switch (1) to
compress each rod fully.
4. Push the "UP" side of the power tilt switch to extend
each rod fully.
5. Remove the oil tank cap with each rod extended
fully. Check if the ATF is at the upper limit (2) of the
filler port.
If ATF does not flow out of the filler port, add ATF
until it flows out.
• Check the fluid level with the rods fully extended.
Note that ATF will spurt out when the oil tank cap is
removed with the rods fully compressed.
6. After adding ATF, repeat the procedure from step 3
through 5 two or three times to bleed air from the
unit.
7. Be sure that the rods fully extend and compress
during the step 6 operation.
When the rods fully extend and compress fully,
perform the hydraulic pressure check (page 19-39).
If the rods do not compress fully, perform the
following procedure.
(2)
(1)
TRIM/TILT
19-37