Yanmar 2YM15 - Checking and Adding Coolant

BEFORE YOU OPERATE
YM Series Operation Manual 35
12/05
Checking and Adding Coolant
Figure 1
Figure 8
1 – Coolant Tank / Heat Exchanger
2 – Coolant Drain Plug
3 – Seawater Drain Plug
4 – Seawater Pump
5 – Coolant Pump
Figure 9
1 – Coolant Tank / Heat Exchanger
2 – Seawater Drain Cock
3 – Coolant Drain Plug
Figure 2
Figure 10
1 – Stop Solenoid
2 – Coolant Drain Cock
3 – Flywheel Housing
1. Allow the engine to cool.
Note: The drain cocks are opened
before shipping from the factory.
Close all drain cocks before
filling the system with coolant.
2. Ensure all drain cocks are closed.
3. Loosen the coolant tank filler cap to
relieve the pressure, then remove the
filler cap.
WARNING
Burn Hazard.
Never remove the coolant filler cap if
the engine is hot. Steam and hot
engine coolant will spray out and
seriously burn you. Allow the engine
to cool down before you attempt to
remove the cap.
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