MerCruiser 3.0 TKS, User Manual

Page: 96 / 112

Section 6 - Storage
Page 88 90-8M0053372
eng
NOVEMBER 2010
12. Before launching the boat, pull up on the manual release valve. Verify that the green indicators are no longer extended.
a - Green indicators
Manual Single‑Point Drain System
Boat in the Water
1. Close the seacock (if equipped) or remove and plug the water inlet hose.
2. Rotate the blue handle counterclockwise until it stops (approximately two turns). The red on the handle shaft indicates that
the drain system is open. Do not force the handle as this will create new threads.
3. Immediately remove the blue drain plug from the side of the thermostat housing. This must be removed within 30 seconds
to properly vent the cooling system.
a - Blue handle
b - Blue drain plug location
4. Visually verify that water is draining. If water does not drain, remove the blue drain plug from the distribution housing and
drain manually.
a - Drain location ‑ orange or red
b - Blue drain plug
5. Allow the system to drain for a minimum of five minutes. We recommend leaving the drain system open while transporting
the boat or performing other maintenance.
6. Reinstall the blue drain plug in the thermostat housing.
a
6135
a
b
6136
a
b
6137