3-10
Maintenance
4st 9.9/15/20 2008
4. Fill with gear oil (from oil tube or pump) through lower plug
hole 1 until gear oil starts to spill from upper oil plug hole a
without air bubble.
9) Replacement of Gear Oil
1. Tilt outboard motor a little as shown.
2. Place drain oil pan below lower oil plug 1, remove lower oil
plug 1 and then upper oil plug 2 to drain oil.
5. Attach new gasket and upper oil plug 2, and then new
gasket and lower oil plug 1 immediately.
Gear Oil :
Hypoid Gear Oil
API : GL-5 SAE : #90
Quantity of Gear Oil :
370 cm
3
(12.5fl.oz)
1
2
a
OIL
GEARGEAR
GEAR
2
1
a
OIL
GEARGEAR
GEAR
3. Check gear oil for presence of metal particles, change of
color (abnormal if clouded), and viscosity. Check lower unit
internal components if necessary.
Remove lower oil plug first when draining.
Use lower plug hole when filling with gear oil.
Upper hole cannot be used because doing so
will not allow air to evacuate from gear case.
When fully filled with oil, attach upper oil plug
first.
Gasket
Do not reuse.
Gasket
Do not reuse.
Gasket
Do not reuse.
E_MFS20C_ch03_090105.qxd 09.1.20 5:23 PM ページ 10
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