Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 22Get this manual

Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 22

MAINTENANCE
Checking 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 hole4Stop adding lubricantInstall the vent plug and sealing washer before removing the lubricant tube5Remove lubricant tube and reinstall cleaned filldrain plug and sealing washer

aVent PlugSealing WasherLubricant TubeVent HoleFillDrain Plug and Sealing Washer

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