MTU C23R Instruções de Operação descarregar pdf (Página 134)

7.16.3 Draining charge-air coolant

Preconditions

☑Engine shut down and secured against being restarted.

Special tools, Material, Spare parts

Designation / Use Part No. Qty.

Sealing ring

(→ Spare Parts Catalog)

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.

Draining charge-air coolant

1. Have a suitable container ready to catch

the coolant.

2. Turn pressure cap on coolant expansion

tank counterclockwise until the first stop

and allow pressure to escape.

3. Continue to turn pressure cap counter-

clockwise and remove.

4. Draw off separated corrosion inhibitor fluid

in expansion tank through the filler neck.

5. Open drain valves and/or drain plugs and

drain coolant at the following points:

• on the low-temperature coolant pump

• on the low-temperature thermostat

housing.

6. Drain off residual coolant:

• on the intercooler

7. Close all drain valves and screw in drain

plugs using new sealing rings.

8. Place pressure cap on filler neck and close.

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MTU C23R Instruções de Operação Página 134