ENGLISH
V4-007 J EN
Originalbetriebsanleitung
36
9
Error messages/
Faults
What do I do
if . . ?
Possible
causes . .
Remedy . .
...abnormal running
noises occur?
Damaged bearings•
Rotors coming into con-•
tact with one another or at
the conveying chamber
Rotors coming into con-•
tact due to soiling
Foreign bodies in •
gear wheels
Shaft deection•
Replace bearings•
Check play settings, •
check cylinder for cracks
Clean conveying chamber •
Check, clean and, if neces-•
sary, replace gear wheels
Measure shaft deection, •
replace rotary pistons if
necessary
...the compressor
becomes too hot?
Intake lter soiled•
Ambient temperature too •
high
Hood inlet openings •
blocked
Hood fan faulty•
Oil level or oil viscosity •
too high
Rotor play too great •
Overloaded•
Replace lter•
Ensure that there is ad-•
equate ventilation
Clean •
acoustic hood inlet
Replace fan•
Correct oil level, note the •
viscosity
Replace damaged com-•
ponents
Check and comply with •
operating data
...there is oil in the ma-
terial to be conveyed?
Oil level too high•
Worn seal•
Correct oil level•
Replace seals•
...the intake volume
is too low?
Starting strainer/intake •
lter soiled
Lines leaking•
Compressor incorrectly •
dimensioned
Damaged rotors/cylinder•
Clean, replace if neces-•
sary
Seal lines•
Check design •
Replace damaged com-•
ponents
...the motor takes
up too much power?
Operating data does not •
concur with ordering data
Mechanical damage to •
compressor or motor
Decline in motor voltage•
Check and comply with •
operating data
Replace damaged com-•
ponents
Adjust power; see motor •
instructions
...the compressor
turns in reverse
after
shutdown?
Non-return valve faulty or •
not tight
Replace valve•
Error diagnostics/Troubleshooting/Maintenance
Repairs to rotary piston machines may only be performed by authorised and
trained personnel. Improper repairs may present considerable risks to the user/
personnel.
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