Man E 2842 LE 302, Operating Instructions Manual

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Maintenance and care
78
Fill / bleed the cooling system (only when engine has cooled down)
Fill the cooling system of the engine with a mixture of drinkable tap water and anti-freeze
agent on ethylene glycole basis or anti-corrosion agent.
Caution:
Use only approved fuels, lubricants etc. (see brochure “Fuels, lubricants etc.”).
Otherwise the manufacturer’s warranty will become null and void.
Coolant may be filled up only in via the filler neck (large cap) of the expansion tank
D
Remove cap (large cap)
D
Slowly pour in coolant
D
Close expansion tank
D
Let the engine run approx. 15 minutes
at rated speed
D
Switch off engine, turn the cap with the
safety valve carefully to first catch
− let
off pressure − then carefully open and if
necessary top up coolant
D
Do not put cold coolant into an engine which is warm from operation. Ensure that the
ratio of water to anti-freeze is correct
D
With the engine is next put into operation (with the engine cold) check the coolant level
and top up is necessary
D
Repeat this procedure until no more coolant can be added
Cooling system with diaphragm expansion vessel
D
After filling the cooling system let the electric coolant pump run for about 15 minutes
and bleed the cooling system.
D
Watch the pressure in the cooling system and check the coolant level.
Danger:
If in exceptional cases the cooling circuit has to be opened when the engine is
warm, observe the safety instructions of the manufacturer of the cogeneration
power unit.