Draining The Cooling Circuit; Rinsing The Cooling Circuit - Nanni Diesel H4.115 Manuel D'utilisation

Cooling circuit - coolant

Draining the cooling circuit

The coolant in the cooling circuit must be drained in order to
remove the various deposits that can build up in the circuit.
• Start the engine and let it run at idle for few minutes.
• Stop the engine, remove the key from the instrument
panel, and let the engine cool to avoid burns.
• Place a pail under the drain cap A and untighten it.
• Let the coolant run out until the exchanger is empty.
• Clean the inside of the heat exchanger by following the
instructions below before closing the cap.

Rinsing the cooling circuit

The cooling circuit must be rinsed after emptying.
• Remove the fi ll cap situated on the top of the heat
exchanger and the drain cap.
• Clean the inside of the heat exchanger with clean water
by placing a hose in the fi ll cap.
• Continue until clean water runs from the drain orifi ce.
• Close the cap then refi ll with coolant.
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Maintenance