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 deflection
•
Replace bearings
•
Check play settings,
•
check cylinder for cracks
Clean conveying chamber
•
Check, clean and, if neces-
•
sary, replace gear wheels
Measure shaft deflection,
•
replace rotary pistons if
necessary
...the compressor
becomes too hot?
Intake filter 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 filter
•
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
•
filter 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.
Property of American Airlines
