ENGLISH
V4-007 J EN
Originalbetriebsanleitung
37
9
Error messages/
Faults
What do I do
if . . ?
Possible
causes . .
Remedy . .
...if damage to the
machine occurs as
a result of a faulty
supply point?
Motor and electr. control
•
have been connected to
two different networks.
Connect motor and
•
control voltage to a single
supply network.
Alternatively: Use a cur-
•
rent monitoring relay.
...there is a break-
down due to "intake
pressure"?
Intake filter or starting
•
strainer soiled
Slide valve in intake pipe
•
closed
Blank fitted
•
Clean, replace
•
Open slide valve
•
Remove blank
•
...a breakdown oc-
curs due to "com-
pression discharge
pressure"?
Overload at discharge side
•
Closed discharge side
•
Blank installed
•
Performance limits
•
Open slide valve
•
Remove blank
•
...there is a break-
down due to an
increased
"discharge tempera-
ture"?
Decrease in intake pressure
•
Increase in discharge
•
pressure
Deterioration in volumet-
•
ric efficiency
Increase in intake tem-
•
perature
Too little exhaust air
•
expelled
Acoustic hood exhaust air
•
louvre soiled
Check intake pipe
•
Check discharge pipe
•
Check play setting,
•
replace components if
necessary
Ensure there is sufficient
•
inlet air
Ensure there is sufficient
•
exhaust air
Clean
•
...there is a break-
down due to an
increased oil tem-
perature?
Oil cooler soiled
•
Oil cooler ventilator faulty
•
Thermostat controller
•
faulty
Clean
•
Replace
•
Replace
•
...there is a break-
down due to insuf-
ficient oil?
Oil filter contaminated
•
Oil pump faulty
•
Oil pump is taking in air
•
Oil regulating valve faulty
•
or stuck
Oil level too low
•
Replace
•
Replace
•
Check intake pipe
•
Move spindle; if there is
•
a soft knocking on the
housing, replace
Refill oil; establish and
•
eliminate reason for lack
of oil
...the compressor is
not oil-tight?
Oil demister has failed
•
Oil chamber seal faulty
•
Screwed connections in
•
oil lines loose
Perform demister maintenance
•
Replace seals
•
Retighten; replace
•
Whenever intervention has been necessary as a result of a fault occurring, the fol-
lowing must be checked:
Ease of running in rotary piston machine
•
Non-contact rotation
•
Lubricating oil level
•
Correct functioning and connection
•
Compliance with the safety and warning information
•
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