Draining The Cooling System - Yanmar 2YM15 Operation Manual

LONG-TERM STORAGE
DRAINING THE COOLING
SYSTEM
(1)
(3)
Figure 1
1 – Alternator
2 – Coolant Tank / Heat Exchanger
3 – Coolant Drain Cock
4 – Seawater Drain Cock
(4)
(5)
(2)
Figure 2
1 – Coolant Tank / Heat Exchanger
2 – Seawater Drain Cock
3 – Coolant Drain Cock
4 – Coolant Pump
5 – Seawater Pump
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(2)
(4)
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(1)
(3)
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© 2007 Yanmar Marine International
(1)
(3)
(2)
Figure 3
1 – Stop Solenoid
2 – Coolant Drain Cock
3 – Flywheel Housing
Note: The drain cocks are opened before
shipping from the factory. Close all drain
cocks before filling the system with coolant.
NOTICE: If seawater is left inside, it may
freeze and damage parts of the cooling
system (heat exchanger, seawater
pump, etc.) when ambient temperature
is below 0°C (32°F).
1. Put a pan under the seawater drain
cocks.
2. Open the seawater drain cocks on the
pipe and on the heat exchanger. Allow
to drain.
3. Remove the four bolts fastening the
side cover of the seawater pump.
Remove the cover and drain the
seawater.
4. Install the cover and tighten bolts.
5. Close all drain cocks.
YM Series Operation Manual
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