MTU 12V4000C*5 series, Operating Instructions Manual

Page: 76 / 305

5.8 After stopping the engine – Putting the engine out of
operation
Preconditions
☑
MTU Preservation and Represervation Specifications (A001070/..) are available.
NOTICE
Engine coolant with inadequate freeze protection. Water remaining in the pressure sensors freezes at
temperatures below 0 °C.
Risk of sensor damage!
• Remove pressure sensors and shake off residual water.
After stopping the engine
Item Measure
Coolant circuit Drain engine coolant (→ Page 219) and
Drain charge-air coolant (→ Page 230) if
• freezing temperatures are expected, the engine is to remain out of service
for an extended period, but engine coolant has no antifreeze additive.
• the engine room is not heated.
• the coolant is not kept at a suitable temperature.
• the antifreeze concentration is insufficient for the engine-room tempera-
ture.
• the antifreeze concentration is 50% and the engine room temperature is
below -40 °C.
Engine control system Switch off (see manufacturer's documentation).
Air intake and exhaust sys-
tem If the equipment is to remain out of service for more than one week, seal the
engine's air and exhaust sides. Otherwise, components carrying air or ex-
haust gas are at risk of corrosion.
If the equipment is to remain out of service for more than one month, pre-
serve the engine (→ MTU Preservation and Represervation Specifications
A001070/..).
74 | Operation | MS15041/03E 2018-08
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