Gearcase Lubrication - Mercury 75 Operation Maintenance Warranty Installation Manual

Tube Ref
Description
No.
Power Trim and
114
Steering Fluid

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.
Examine the drained gearcase lubricant for metal particles. A small amount of
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.
DRAINING GEARCASE
1. Place the outboard in a vertical operating position.
2. Place a drain pan below the outboard.
3. Remove the vent plugs and fill/drain plug and drain the lubricant.
GEARCASE LUBRICANT CAPACITY
Gearcase lubricant capacity is approximately 665 ml (22.5 fl oz).
MAINTENANCE
Where Used
Power trim reservoir
a - Vent plugs
b - Fill/drain plug
a
b
26977
100
27884
Part No.
92-858074K01
eng