Change Of Air Intake Filter - CompAir L15 Operating And Service Manual

9. Service and maintenance
Swivel reservoir cover back to the initial position
•
Turn cheese head screw (- 8 - Fig. 21)
•
counterclockwise until the reservoir cover is loosely
lying on the pressure reservoir flange
Screw down all hexagonal head screws, with
•
exception of the two screws lying in the swivel area
of the pressure control valve and tighten crosswise.
Swivel the pressure control valve back to its starting
•
position and assemble with the appropriate screws.
Then fit the missing hexagonal head screws in the
•
reservoir cover and tighten to a tightening torque of
214 Nm (screw strength class 8.8) or 95 Nm (screw
strength class 5.6).
Tighten (clockwise) cheese head screw for lifting the
•
reservoir cover (- 8 - Fig. 21) to protect it against
unwanted turning
Reassemble all dismantled pipes to the pressure
•
vessel and assemble oil suction again.
Let the screw compressor unit run for approx.
•
2 minutes
Check for leakages
•
Check oil level (see chapter 6.5)
•
If required, top up oil
•
Changing intervals for oil fine separator
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 , solvent vapours, etc.) have a strong
2
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.
9.7

Change of air intake filter

Fig. 23
1 Air intake filter
2 Intake filter monitor (visual)
Warning
Only replace the air intake filter when the
screw compressor unit is out of operation,
depressurized, and secured from being
switched on again!
Important
Never operate the screw compressor unit without
the air filter (even a short operating time without
this filter can result in considerable damage to the
machine)!
As a standard, the air filter is provided with a visual in-
take filter monitor (- 2 - Fig. 23), which indicates clog-
ging of the air filter cartridge.
When the red service field of the intake filter monitor is
visible and remains clicked into position while the screw
compressor is out of operation, replace the air filter
cartridge.
However, the air filter cartridge should be replaced at
the latest as specified in chapter 9.3. Check air filter at
least once a week or, if required, daily for the accu-
mulator of dust. When carrying out maintenance work,
make sure that no dirt gets to the clean air side of the
air filter.
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