Operating instructions

Cooling System, General, HT Circuit   39

6.15 Cooling System, General, HT Circuit

6.15.1 Engine coolant system filling

Preconditions

 Engine is stopped and starting disabled.

 MTU Fluids and Lubricants Specification (A001061/..) is available.

Material

Designation / Use Part No. Qty.

Coolant

FLS

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.

CAUTION

Cold coolant in hot engine can cause thermal stress.

Formation of cracks in components!

 Fill / top up coolant only into cold engine.

Preparatory steps

1. Turn breather valve of filler neck on coolant

expansion tank counterclockwise to first stop

and allow pressure to escape.

2. Continue to turn breather valve counterclockwise

and remove.