Mercury Bravo Sterndrive 520 - Local Repair Service; Service Away from Home; Parts and Accessories Inquiries; Service Assistance

NOTE: It may be necessary to lift, bend, or lower hoses to allow water to
completely drain when hoses are disconnected.
1. Place the boat on a level surface to ensure complete draining of the
system.
2. Remove the port side blue drain plug.
3. Remove two blue drain plugs from the seawater pickup pump (front,
starboard side).
a - Starboard side blue drain plugs
b - Port side blue drain plug
4. Verify that water is draining from each opening.
5. Allow the system to drain for a minimum of five minutes. Mercury
MerCruiser recommends leaving the drain system open while transporting
the boat or while performing other maintenance to ensure that all water is
drained.
6. For DTS engines, pull the lanyard stop switch (if equipped), or disable the
ignition circuit by pulling the fuse marked "CD."
7. Crank the engine over slightly with the starter motor to purge any water
trapped in the seawater pickup pump. Do not allow the engine to start.
8. Prior to launching the boat or starting the engine, close the drain system
by installing the two blue drain plugs.
a
b
a
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COLD WEATHER OR EXTENDED STORAGE
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