Section 6 - Storage
90-8M0061999 eng MAY 2012 Page 71
7.
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
8. Allow the system to drain for a minimum of five minutes. Pump air as necessary to keep the green indicators extended.
9. For DTS engines, pull the lanyard stop switch (if equipped), or disable the ignition circuit by pulling the fuse marked "CD."
10. 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.
11. Remove the air pump from the air manifold and return it to the mounting bracket.
12. 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.
13. Before launching the boat, pull up on the manual release valve. Verify that the green indicators are no longer extended.
a - Manual release valve pull ring
b - Threaded cap
c - Green indicators
Manual Drain System
Boat in the Water
NOTE: Use this procedure if the air‑actuated single‑point drain system fails to drain the system.
NOTE: It may be necessary to lift, bend, or lower hoses to allow water to completely drain when hoses are disconnected.
1. Close the seacock (if equipped) or remove and plug the water inlet hose.
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