6.12.7 Engine coolant – Sample extraction and analysis
Preconditions
☑ Engine is stopped and starting disabled.
☑ MTU Fluids and Lubricants Specifications (A001061/..) are available.
Special tools, Material, Spare parts
Designation / Use Part No. Qty.
MTU test kit
5605892099/00 1
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.
Engine coolant – Sample extraction and analysis
1. Turn breather valve on coolant expansion tank counterclockwise to the first stop and allow pressure to es-
cape.
2. Continue to turn breather valve counterclockwise and remove.
3. Draw off precipitated corrosion inhibitor oil from expansion tank and dispose of oil.
4. Draw off approx. 1 liter coolant and drain into a clean container.
5. Using the equipment and chemicals from the MTU test kit, examine coolant for:
• antifreeze concentration;
• corrosion inhibitor concentration;
• pH value.
6. Fit breather valve and close it.
7. Engine coolant change intervals (→ MTU Fluids and Lubricants Specifications A001061/..).
118 | Task Description | MS150094/02E 2015-05
TIM-ID: 0000014607 - 002
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