Checking The Engine After Operation - Yanmar 4JH45 Operation Manual

ENGINE OPERATION
CHECKING THE ENGINE
AFTER OPERATION
• Check that the power switch is off and
that the battery switch (if equipped) is
turned to off.
• Fill the fuel tank. See Filling the Fuel
Tank on page 35.
• Close seawater cock(s).
• If there is a risk of freezing, check that
the cooling system contains enough
coolant. See Engine Coolant
Specifications on page 41.
• If there is a risk of freezing, drain the
seawater system. See Drain Seawater
Cooling System on page 92.
• At temperatures below 0°C (32°F), drain
seawater system and connect the
engine heater (if equipped).
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JH Series Operation Manual