MTU 12V4000C*5 series, Operating Instructions Manual

Page: 227 / 305

8.15.6 Engine coolant – Sample extraction and analysis
Preconditions
☑ MTU Fluids and Lubricants Specifications (A001061/..) are available.
Special tools, Material, Spare parts
Designation / Use Part No. Qty.
Test kit
F6798833 1
Torque wrench 10–60 Nm
F30452769 1
DANGER
Components are moving or rotating.
Risk of crushing, danger of parts of the body being caught or pulled in!
• Operate the engine at low load only. Keep clear of the danger zone of the engine.
WARNING
Coolant is hot and highly pressurized.
Risk of injury! Risk of scalding!
• Allow engine to cool down.
• Wear protective clothing, protective gloves, and safety glasses / facial protection.
WARNING
High level of engine noise when the engine is running.
Risk of damage to hearing!
• Wear ear protectors.
Engine coolant – Sample extrac-
tion and analysis
1. With the engine running, open drain valve (1).
2. Drain off approx. 1 liter of engine coolant.
Result: Drain point is rinsed.
3. Drain approx. 1 liter coolant into a clean con-
tainer.
4. Tighten drain valve (1) to specified tightening using a torque wrench.
Name Size Type Lubricant Value/Standard
Spindle 11 A/F Tightening torque 12 Nm
5. Using the equipment and chemicals of the MTU test kit, examine engine coolant for:
• Concentration of engine coolant additives
• pH value
6. Engine coolant change intervals (→ MTU Fluids and Lubricants Specifications (A001061/..)).
MS15041/03E 2018-08 | Coolant Circuit, General, High-Temperature Circuit | 225
TIM-ID: 0000037917 - 005