Yamaha F225F, Service Manual

Page: 512 / 576

9-33
BRKT
Bracket unit
Checking the hydraulic pressure
Check the hydraulic pressure. Check the
internal parts if out of specification.
Before removing the reservoir cap, make
sure that the PTT rams are fully extended.
Otherwise, fluid could be expelled force-
fully from the PTT unit due to internal
pressure.
1. Fully extend the PTT rams.
2. Place the PTT unit in an upright position.
3. Remove the reservoir cap
a
, and then
check the fluid level in the reservoir.
TIP:
If the fluid is at the proper level, a small
amount of fluid should flow out of the filler
hole.
4. If the fluid is below the proper level, add
the recommended fluid.
5. Install the reservoir cap
a
, and then
tighten it to the specified torque.
6. Loosen the pipe joints
b
, and then
remove the pipe joint at the end
a
.
7. Install the special service tool
c
.
TIP:
Place the PTT unit in the drain pan.
8. Connect the PTT motor leads to the
battery terminals to fully retract the trim
rams, and then measure the hydraulic
pressure when the reading on the
pressure gauge stabilizes.
9. Reverse the PTT motor leads between
the battery terminals to fully extend the
trim rams.
Recommended PTT fluid: ATF DEXRON II
Reservoir cap
a
:
7 N·m (0.7 kgf·m, 5.2 ft·lb)
a
PTT oil pressure gauge assembly
c
:
90890-06580
Ram PTT motor lead
Battery
terminal
Down
Light green (Lg)
Sky blue (Sb)
Hydraulic pressure (down):
6.7–8.7 MPa (67.0–87.0 kgf/cm
2
,
971.5–1261.5 psi)
c
b
a
Sb Lg