Comprag D7510, Manual

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6. Fault handling
6.1 Faults and corrective actions
Problem Possible faults Corrective actions
The compressor starts up with
lag. There is a slow build up in
the electric
motor’s speed.
The belt is overtightened
Tighten the belt with the rel-
evant load.
The oil is thick. Replace the oil.
There’s a whistling during the
compressor’s operation.
The belt is slipping.
Tighten the belt with the appro-
priate tensile force (see section
5.3 Checking drive belt).
The compressor won’t start.
There’s a temperature block on
the control unit’s display.
The ambient air temperature in
the facility does not meet the
required temperature (below
+5 °C or above +40 °C).
Ensure the necessary ambi- ent
air temperature where the com-
pressor is installed.
The compressor is overheating.
There’s insufficient ventilation in
the facility where the compres-
sor is installed.
Increase the air circulation
inside the facility.
The oil level is too low. Top up oil.
The radiator is dirty Blow down the radiator with
compressed air.
The safety-relief valve of the
separator tank is activated.
The separator is dirty.
Perform maintenance by
replac- ing the separator.
The pressure is too high
(over13 bar). Set the working pressure
below 13 bar.