Lower Unit Inspection; Hydraulic System Air Bleeding; Gear Oil Check - Yamaha F20A Service Manual

INSP
ADJ
POWER TRIM AND TILT (PTT) SYSTEM/
LOWER UNIT
2. Fill:
PTT unit
Recommended PTT fluid:
ATF Dexron II
PTT fluid level check bolt:
7 Nm (0.7 kg • m, 5.1 ft • lb)

Hydraulic system air bleeding

NOTE:
The PTT unit cannot be bled manually. The
power tilt must be operated during the
bleeding procedure.
1. Bleed:
Air
Bleeding steps:
Turn the manual valve counterclock-
wise until it is fully closed.
Connect the battery leads to the bat-
tery.
Push the PTT switch so that the tilt rod
moves up and down.
PTT switch
UP
DN
Move the tilt rod up and down several
times until it moves smoothly.
LOWER UNIT
Gear oil
1. Check:
Gear oil
Milky oil → Replace the oil seal.
Slag oil → Check the gear, bearing,
and clutch dog.
2. Check:
Gear oil level
Level is low → Add oil to the proper
level.
3-7
E
Direction
Tilt up
Tilt down