10. Service and maintenance
44
Change the oil fine separator as follows:
•
Switch the screw compressor unit off and make sure
that it is depressurized and no voltage is supplied.
•
Unscrew the fine separator cartridge (-1- Fig. 18)
using an appropriate tool
•
Dispose of the fine separator cartridge according
tothe regulations
•
Oil the gasket of the new fine separator cartridges
lightly
•
Screw on the new fine separator cartridge and
tighten manually (take notice of the instructions on
the fine separator cartridge)
•
Check for leakage
•
Check oil level (see Section 7.5)
•
If required, top up oil.
Changing intervals for oil fine separator cartridge
The operating conditions (e.g. coolant temperatures),
the operating modes and the quality of the intake air
(e.g. content of dust, content of gaseous foreign matter
such as SO
2
, solvent vapours, etc.) have a strong
influence on the service life of the filters (air filters, oil
filters, fine separators).
Where such conditions exist the filter element may
require changing more frequently.
10.7
Change of air intake filter
DANGER
Only perform checks and carry out work on
the screw compressor when the unit is out
of operation, depressurized, and secured
from being switched on again!
NOTICE
Never operate the screw compressor system
without an air filter (even briefly removing it can
cause considerable damage to the machine)!
A clogged air filter must be cleaned or replaced when
the maintenance point has been reached.
Check the air filter for accumulated dust at least once a
week or, if required, daily.
During maintenance work, take care that no dirt enters
the clean air side of the air filter.
Fig. 19
1 Air filter housing cover
2 Air filter housing
3 Air filter element
4 Fixing clip
Change the air filter as follows:
•
Loosen and remove the air filter housing cover
(- 1 - Fig. 19)
•
Remove the air filter (- 3 - Fig. 19) and replace it
with a new one
•
Insert the air filter cartridge into the air filter housing
(- 2 - Fig. 19)
•
Screw the air filter housing cover on to the air filter
housing
Changing intervals for air filter cartridge
The operating conditions (e.g. coolant temperatures),
the operating modes and the quality of the intake air
(e.g. content of dust, content of gaseous foreign matter
such as SO
2
, solvent vapours, etc.) have a strong
influence on the service life of the filters (air filters, oil
filters, fine separators).
Where such conditions exist the filter element may
require changing more frequently.