Gear Case Oil Change - TOHATSU BFT115A Service Manual

GEAR CASE OIL CHANGE

Place the outboard motor on a level surface and
position the outboard motor vertically (with the gear
case level).
Tilt the outboard motor up slightly until the drain hole is
at its lowest point.
Remove the oil level check bolt (1) and drain plug bolt
(2), then check for metal particles on the magnet end.
If there are metal particles on the magnet end of the
drain plug bolt, disassemble and inspect the gear case
assembly:
– Standard rotation type (page 16-8)
– Counter rotation type (page 17-8)
If there is water in the oil, the water will flow out first
when the drain plug bolt is removed, or the oil will be in
milky color. If water in the gear oil is detected, perform a
gear case pressure check:
– Standard rotation type (page 16-47)
– Counter rotation type (page 17-51)
Tilt the outboard motor down until it is vertical.
Install a commercially available gear oil pump (3) in the
oil drain bolt hole, and add gear oil until it flows out from
the oil level check bolt hole (4).
RECOMMENDED GEAR OIL:
MARINE SAE 90 Hypoid gear oil
API Service Classification (GL-4)
GEAR OIL CAPACITY:
0.98 liter (1.04 US qt, 0.86 lmp qt)
After adding the gear oil, apply gear oil to new O-rings
(5) and install them on the oil level check bolt and drain
plug bolt.
Install and tighten the bolts to the specified torque.
TORQUE: 6.5 N·m (0.66 kgf·m, 4.8 lbf·ft)
(1)
(5)
(2)
(3)
MAINTENANCE
(5)
(4)
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