MAINTENANCE
Page 1B-14 90-828631R3 MARCH 1999
CHECKING GEAR CASE LUBRICANT LEVEL AND REFILLING GEAR CASE
1. Place outboard in a vertical operating position.
2. Remove vent plug.
3. Place lubricant tube into the fill hole and add lubricant until it appears at the vent hole.
IMPORTANT: Replace sealing washers if damaged.
4. Stop adding lubricant. Install the vent plug and sealing washer before removing the lubri-
cant tube.
5. Remove lubricant tube and reinstall cleaned fill/drain plug and sealing washer.
a
b
c
d
a-Vent Plug/Sealing Washer
b-Lubricant Tube
c-Vent Hole
d-Fill/Drain Plug and Sealing Washer
4-1/4 In. (108mm) Diameter Gear Case
When adding or changing gear case lubricant, visually check for the presence of water in
the lubricant. If water is present, it may have settled to the bottom and will drain out prior
to the lubricant, or it may be mixed with the lubricant, giving it a milky colored appearance.
If water is noticed, have the gear case checked by your dealer. Water in the lubricant may
result in premature bearing failure or, in freezing temperatures, will turn to ice and damage
the gear case.
Whenever you remove the fill/drain plug, examine the magnetic end for metal particles. A
small amount of metal filings or fine metal particles indicates normal gear wear. An exces-
sive amount of metal filings or larger particles (chips) may indicate abnormal gear wear and
should be checked by an authorized dealer.
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