Cooling System, LT Circuit
49
WARNING
Engine noise above 85 dB (A).
Risk of damage to hearing!
Wear ear protectors.
Charge-air coolant sample extraction and analysis
1. With the engine running, open drain valve.
2. Flush sample-extraction point by draining approx.
1 liter coolant.
3. Drain approx. 1 liter coolant into a clean
container.
4. Close drain valve.
5. Using the equipment and chemicals of the MTU
test kit, examine coolant for:
antifreeze concentration;
corrosion inhibitor concentration;
pH value.
6. Change charge-air coolant according to
the coolant operating times specified in the
MTU Fluids and Lubricants Specification
( Page 6 47).
6.16.6 LT cooling pump relief bore check
DANGER
Unguarded rotating and moving engine components.
Risk of serious injury danger to life!
Take special care when working on a running engine.
WARNING
Engine noise above 85 dB (A).
Risk of damage to hearing!
Wear ear protectors.
LT cooling pump relief bore check
1. Check relief bore for oil and water discharge.
2. Stop engine ( Page 3 5)and disable engine
start.
3. Clean the relief bore with a wire if it is dirty.
Permissible water discharge: up to 10 drops
per hour;
Permissible oil discharge: up to 5 drops
per hour.
4. If discharge exceeds the specified limits: Contact
Service.
M015403/00E 02-09
© MTU
www.generent.ru
Summary of Contents for 12V 4000 G 41
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