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Mercury 25 2-Stroke - Page 106

Mercury 25 2-Stroke
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MAINTENANCE
96 eng
Gearcase Lubrication
When adding or changing gearcase 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 gearcase 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 gearcase.
Remove the fill/drain plug and examine the magnetic end for
metal particles. A small amount of metal filings or fine metal
particles indicates normal gear wear. An excessive amount of
metal filings or larger particles (chips) may indicate abnormal
gear wear and should be checked by an authorized dealer.
CHANGING GEAR OIL
1. Place the outboard in a vertical operating position.
2. Place a drain pan below the outboard.
3. Remove the oil plugs (upper and lower) and drain the gear
oil completely.
37849

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