40
Cooling System, General, HT Circuit
Filling coolant with pump
1. Connect appropriate pump with hose to drain
valve.
2. Open drain valve and pump treated coolant into
engine, until coolant level reaches lower edge of
cast-in eye or marking plate on filler neck.
3. Close drain valve.
4. Disconnect pump and hose.
Filling coolant through filler neck
1. Alternatively: Fill coolant though filler neck on coolant expansion tank until level reaches cast-in eye or marking
plate.
2. Check proper condition of breather valve, clean sealing faces if required.
3. Set breather valve onto filler neck and close it.
Final steps
1. Start the engine and operate it at idle speed for some minutes.
2. Check coolant level ( Page 6 41)and top up, if required.
6.15.2 Engine coolant draining
Preconditions
Engine is stopped and starting disabled.
WARNING
Coolant is hot and under pressure.
Risk of injury and scalding!
Let the engine cool down.
Wear protective clothing, gloves, and goggles / safety mask.
Preparatory steps
1. Provide an appropriate container to drain the coolant into.
2. Switch off preheating unit.
M015403/00E 02-09
© MTU
www.generent.ru
Summary of Contents for 12V 4000 G 41
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