Yamaha F150A Service Manual page 425

1
Manual valve "1":
3 N·m (0.3 kgf·m, 2.2 ft·lb)
3. Check the fluid level. See steps 2–4 in
"Checking the hydraulic pressure" (9-35).
4. Connect the battery jumper leads to the
PTT motor lead "1" to fully retract the
PTT rams.
TIP:
If the PTT rams do not move down easily,
push on the PTT rams to assist operation.
1
G L
Ram PTT motor lead
Green (G)
Retract
Blue (L)
5. Reverse the connection between battery
jumper leads and the PTT motor lead "1"
to fully extend the PTT rams.
TIP:
If the PTT rams do not move down easily, pull
on the PTT rams to assist operation.
L
6. Repeat steps 4 and 5 to fully extend and
7. Fully extend the tilt ram.
8. Remove the reservoir cap, and then
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.
TIP:
If the fluid is below the proper level, add the
recommended PTT fluid. Repeat steps 3–7
until the fluid remains at the proper level.
Battery
(+)
9. Install a new O-ring and the reservoir
(–)
Reservoir cap:
9-38
1
G
Ram PTT motor lead
Blue (L)
Extend
Green (G)
retract the PTT rams 4 or 5 times.
check the fluid level in the reservoir.
cap, and then tighten the reservoir cap to
the specified torque.
7 N·m (0.7 kgf·m, 5.2 ft·lb)
PTT unit
0
1
Battery
2
(+)
(–)
3
4
5
6
7
8
9
10
A