Air Actuated Single-Point Drain System (Closed Cooling) - Mercury T6200 TowSport Operation And Maintenance Manual

18. The drain system should remain open while transporting the boat or while performing other maintenance. This helps
ensure that all water is drained.
19. Before launching the boat, pull up on the manual release valve. Verify that the green indicators are no longer extended.
20. Open the seacock, if equipped, or unplug and connect the water inlet hose prior to operating the engine.
Air Actuated Single‑Point Drain System (Closed Cooling)
The following instructions apply to draining procedures performed on engines in vessels that are in the water. For vessels that
are not in the water, you do not need to close the seacock (if equipped) or remove and plug the water inlet hose.
1. Close the seacock (if equipped) or remove and plug the water inlet hose.
2. Remove the blue plug from the heat exchanger.
NOTE: Some V‑Drive models have the air actuated valve at the rear of the engine.
3. Remove the cap from the air actuated valve assembly.
a
4. Ensure that the lever on top of the air pump is flush with the handle (horizontal).
5. Install the air pump on the actuator fitting.
90-8M0128975 JUNE 2017
eng
a - Green indicators
a
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b
a - Blue plug
b - Cap
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Section 5 - Storage
Page 59