Mercury 300XS OptiMax User Manual

MAINTENANCE
84
Gearcase Lubricant
CHECKING/REFILLING GEARCASE LUBRICANT
or49-1
a
b
c
d
e
f
c
d
87
a - SportMaster gearcase
(vertical operating
position)
b - Fleet/Torque Master
gearcase (vertical
operating position)
c - Vent hole
d - Vent plug and sealing
washer
e - Fill/drain hole
f - Fill/drain plug
Tube Ref. No. Description Where Used Part Number
87
High Performance Gear
Lube
Fill/Drain Hole 92-802854A1
1. Place the outboard in a vertical operating position.
2. Remove the vent plug (upper plug) and sealing washer.
3. Remove the fill/drain plug (lower plug).
4. Quickly place lubricant tube into the fill hole.
5. Slowly add lubricant until it flows from the (upper) vent hole.
6. Stop adding lubricant. Install the (upper) vent plug and sealing
washer before removing the lubricant tube.
IMPORTANT: Replace sealing washers if damaged.

Mercury 300XS OptiMax Specifications

General

Engine Type	2-Stroke
Horsepower	300 HP
Alternator Output	60 amp / 756 watt
Gear Ratio	1.75:1
Starting System	Electric
Fuel System	2-Stage Direct Fuel Injection (DFI)
Weight	505 lbs / 229 kg
Cylinders	6
Steering	Hydraulic
Shaft Length	25"