After Stopping The Engine - Putting The Engine Out Of Operation - MTU 12V 4000 L64 Operating Instructions Manual

4.11 After stopping the engine – Putting the engine out of
operation
Preconditions
☑ MTU Fluids and Lubricants Specifications (A001061/..) are available.
After stopping the engine
Item
Coolant circuit
Operating voltage for engine
management
Gas supply
Air intake and exhaust sys-
tems
Starter battery (batteries)
Control-voltage battery (bat-
teries)
Table 36: After stopping the engine
52 | Operation | MS15027/04E 2017-08
Action
Drain engine coolant (→ Page 196)
Drain mixture coolant (→ Page 202) if:
• freezing temperatures are expected and the engine is to remain out of
service for an extended period, but coolant has no antifreeze additive;
• the engine room is not heated;
• the engine coolant is not maintained at a suitable temperature;
• the antifreeze concentration is insufficient for the engine-room tempera-
ture;
• antifreeze concentration is 50 % and engine-room temperature is below
-40 °C.
Switch off.
Close manual gas shutoff valve.
If the engine is to remain out of service for more than 1 week, seal the en-
gine's air and exhaust sides. If the engine is to remain out of service for more
than 1 month, carry out preservation (→ MTU Preservation and Represerva-
tion Specifications A001070/..).
The corrosion-inhibiting effect of the engine coolant may be used as an alter-
native in case of out-of-service periods lasting for more than 1 month, by run-
ning the engine for at least 2 hours at rated power once a month.
Charge regularly (trickle charge).
If fitted: Charge regularly (trickle charge).