MTU 12 V 4000 M63 Specifikace stáhnout pdf (Strana 86)

84 Preservation speciﬁcations

Preserving diesel engines

Out-of-service period of < 3 months

Engines do not need to be preserved separately. It is sufﬁcient to close the emergency-air shutoff

ﬂaps, if ﬁtted. All ﬂuids and lubricants remain in the engine.

Out-of-serviceperiodof1–3monthswithinstalledﬁeld engines

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. All ﬂuids and lubricants remain in the engine.

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)

Out-of-service period of 1 – 3 months with ﬁeld engines removed

Prior to removal, 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.

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

• Leave the coolant in the cooling circuit

If it is not possible to leave the coolant in the cooling circuit, drain the coolant and proceed as follows:

• Clean engine if necessary.

• Fill cooling circuit completely with approved corrosion inhibitor for internal preservation of the coolant circuit

(further on referred t o as "preservation liquid") in accordance with the instructions in Chapter 8.

• Fill the 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.

• Stop the engine

• Allow engine to cool down, where possible, to max. 40 °C.

• Drain the inhibitor concentrate.

• Drain engine oil

• Leave the fuel in the system

If it is not possible to leave the fuel in the system, preserve the fuel circuit in accordance with the instructions in

Chapter 7, "Preservatives", under "Corrosion inhibiting oils for internal preservation of the fuel system " (→ Page 43)

Note regarding the cooling circuit:

To avoid time-consuming ﬂ ushing cycles when ﬁlling the coolant system after engine preservation with

emulsion-type preservatives, we recommend to use Glysacorr P 113 as preservation liquid.

Out-of-service period of > 3 months with ﬁeld engines installed or removed

Preservation of cooling system, lubrication system and fuel system, if the coolant can be left in the system

• Clean engine if necessary.

• Drain engine oil.

• Fill with initial operation corrosion-inhibiting oil in accordance with Chapter 8 up to the “Min” mark at least

• Fill the fuel system completely with diesel fuel

• When using a corrosion inhibiting antifreeze, leave it in the system; otherwise, drain coolant and ﬁll the

system in accordance with Chapter 8 with approved corrosion-inhibiting antifreeze, if freezing temperatures

are expected. If there is no risk of frost, the customer’s coolant can be left in the system.

• Carry out the engine preservation run for approx. 10 mins at increased idling speed; the

coolant must reach at least operating temperature.

• Stop the engine

• Leave the engine coolant in the system

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