Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 26Get this manual

Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 26

MAINTENANCE
CHECKING GEAR CASE LUBRICANT LEVEL AND REFILLING GEAR CASE
1Place outboard in vertical operating position2Remove vent plug3Place lubricant tube into the fill hole and add lubricant until it appears at the vent hole
IMPORTANT: Replace sealing washers if damaged4Stop adding lubricantInstall the vent plug and sealing washer before removing the lubricant tube 5Remove lubricant tube and reinstall cleaned filldrain plug and sealin washer

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