Specifications

78 Preservation Specifications
Preserving diesel engines
Out-of-service period of < 1 month with engines installed
Engines do not need to be preserved separately. It is sufficient to close the emergency-air shutoff flaps, if fitted.
Out-of-serviceperiodof1–3monthswithenginesinstalledorremoved
Run engine up to operating temperature, then run up to rated speed for about 30 seconds and then
shut down at rated speed. The engine must not be started again. This engine run must also be
carried out before the engine is removed for a period out-of-service.
Engine in installed condition
The following openings must be sealed tightly:
• Cooling-air inlet
• Combustion-air inlet (close the emergency air shutoff flaps if they are provided).
• Exhaust outlet
• Crankcase breather, if possible (when venting to atmosphere)
With engine removed
The following openings must be sealed tightly:
• Cooling-air inlet
• Combustion-air inlet (Close the emergency air shutoff flaps if they are provided).
• Exhaust outlet
• Crankcase breather, if possible (when venting to atmosphere).
• Coolant circuit
• Fuel system
• Lubricating oil system
• Hydraulic oil circuit
• Electrical connections
Commissioning these engines
Remove all sealing covers. The engine can then be put into operation according to the engine documentation.
Out-of-service period of > 3 months, new engines, overhauled engines
General information
The preservation work must be recorded in the check sheet (→ Page 93). For engines put into
storage under manufacturer’s warranty, the monitoring card (→ Page 94) must be filled out and
returned to MTU in good time before the engine is put into service.
Note
If the engine cannot be properly accessed to carry out preservation work (e.g. charge-air pipe inaccessible) then the
engine must be removed and mounted on a ground run base or a test stand while preservation i s completed.
Preservation of cooling system, lubrication system and fuel system of new engines
• Clean engine if necessary.
• Completely fill cooling system with inhibitor concentrate Glysacorr P 113 (9-11% by
vol.) and water ( 91 – 89% by vol.).
• Fill with initial operation corrosion inhibitor oil in accordance with current MTU specs
A 001061 at least up to the min. mark.
• Fill t he fuel system completely with diesel fuel.
• Carry out the engine preservation run for approx. 10 mins at increased idling speed; the
inhibitor concentrate must reach at least operating temperature.
• Shut down engine.
• Allow engine to cool down, where possible, to max. 40 °C.
• Drain the inhibitor concentrate.
• Drain initial operation corrosion inhibitor oil.
• Leave the fuel in the system.
If there is danger of frost, fill up with antifreeze (40%)! (Only for installed engines)
A001061/33E 08-01 ©MTU
TIM ID: 0000010139 – 006