Fault Cause Remedy C250 ... C370
214 Translation of Original Operating Manual 156319-04
Fault Cause Remedy
Hydraulic function switched on
without consuming oil
Switch off hydraulic function (es-
pecially volume dividers I + II)
Electrical switch frozen or defec-
tive
Replace electrical switch, check
diesel engine
1)
Oil cooler dirty Clean oil cooler
Oil heats up quickly, system
works against overpressure
V-belt for fan wheel defective Replace V-belt, check diesel en-
gine
1)
Leaking point in the intake area Check line fittings and seal if nec-
essary, check diesel engine
1)
Oil foaming
Water in oil, improper oil type,
mixture of different oils
Change oil
Insufficient oil Add according to specificationHydraulic system working too
slowly, whistling sound
Temperatures in the subzero
range
Refill with correct type according
to maintenance instructions, check
diesel engine
1)
Priority valve dirty Clean priority valve (at basic
block), check diesel engine
1)
Steering is not working
Overpressure valve in hydraulic
steering does not close
Remove and clean, check diesel
engine
1)
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