Section 6 - Storage
90-8M0061999 eng MAY 2012 Page 69
5. Install the air pump on the air connection.
a - Lever
b - Air pump
c - Air connection
6. Pull the lever on the air pump (vertical) to seal the pump to the connection.
7. Pump air into the system until both green indicators extend and water drains from both sides of the engine. The port side
will begin draining before the starboard side.
a - Manual release valve
b - Air pump lever (locked)
c - Air connection
d - Green indicators extended
8.
Verify that water is draining from each opening. If not, use the Manual Drain System instructions.
a - Starboard side
air‑actuated drain
location
b - Port side
air‑actuated drain
location
9. Allow the system to drain for a minimum of five minutes. Pump air as necessary to keep the green indicators extended.
10. For DTS engines, pull the lanyard stop switch (if equipped), or disable the ignition circuit by pulling the fuse marked "CD."
11. Crank the engine over slightly with the starter motor to purge any water trapped in the seawater pump. Do not allow the
engine to start.
12. Remove the air pump from the air connection and return it to the mounting bracket.
13. Mercury MerCruiser recommends leaving the drain system open while transporting the boat or while performing other
maintenance. This helps ensure that all water is drained.
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