Draining the Fresh Water Cooling
System
WARNING! ALWAYS allow the engine to
cool before draining the cooling system.
1. Open the fresh water drain cocks and
drain the fresh water into an appropriate
container.
2. Close the drain cocks after draining the
water.
3. Dispose of waste properly.
Draining Seawater Cooling
System
WARNING! ALWAYS allow the engine to
cool before draining the cooling system.
NOTICE: If seawater is left inside, it may
freeze and damage parts of the cooling
system (fresh water cooler, seawater
pump, etc.) when ambient temperature
is below
0°C (32°F).
1. Close the seacock.
2. Open the seawater drain cocks and
drain off the seawater.
3. Remove the four bolts attaching the
seawater pump cover. Remove the
cover and drain the seawater.
4. Install cover and tighten bolts.
5. Close all the drain cocks.
REMOVING THE ENGINE
FROM LONG-TERM
STORAGE
When using the engine after a long period of
storage, prepare for operation in the same
manner for a new engine. See Before You
LONG-TERM STORAGE
6LPA Series Operation Manual
81
© 2007 Yanmar Marine International
