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INSTALLATION & OPERATION MANUAL
L500 Series
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ENGINE COOLANT FLOW(CLOSED CIRCUIT)
• Engine coolant must be maintained at the “MIN” level marked on the side of the
expansion tank when the engine is cold.
• As the engine temperature increases, the pressure inside the cooling system increases
to 0.7 bar or more. To maintain proper pressure of the engine cooling system, water
may be ejected from the expansion tank. This is normal. Replenish the coolant if this is
observed.
ENGINE COOLANT
1. Engine block coolant outlet(L)
2. Heat exchanger
Coolant
pump
4. Engine block coolant outlet(S)
5. Exhaust manifold