Air-Actuated Single-Point Drain System - Mercury 540 Bravo Manual

COLD WEATHER OR EXTENDED STORAGE
MANUAL DRAIN SYSTEM
a a
a - Starboard side blue drain plugs
b - Port side blue drain plug
Air‑Actuated Single‑Point Drain System
BOAT IN THE WATER
NOTE: This procedure is written for the air pump that was shipped with the
engine from the factory. However, any air source can be used.
1. Close the seacock (if equipped) or remove and plug the water inlet hose.
2. Obtain the air pump.
3. Remove the threaded cap from the air connection.
4. Ensure that the lever on top of the air pump is flush with the handle
(horizontal).
5. Install the air pump on the air connection.
6. Pull the lever on the air pump (vertical) to seal the pump to the air
connection.
eng
91
b
55189