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10 Service and maintenance
10.10 Screw connections
The screw connections of the air, oil, and water circuits
have to be checked and, if required, re-tightened
according to the maintenance schedule.
Check the hose and piping for unsealed areas.
10.11 General maintenance and cleaning
WARNING
Danger when cleaning system parts with
compressed air: Small parts propelled at
high speed by compressed air can
penetrate the skin or destroy an eye.
• Do not aim the compressed air at people
CAUTION
Fire hazard from oil residues
Oil residue and other deposits must be
removed from the compressor coolers
which are exposed to hot air in accordance
with the user manual.
The screw compressor should be blown off with
compressed air at the given intervals (do not aim the
compressed air at people), especially:
Controller components
•
Fittings
•
Air end block
•
Cooler
•
Electric motor
•
Remove and clean the dirt trap strainer
•
(only for water-cooled units)
10.12 Clean / change filter with cool air
intake and switch cabinet inlet
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!
Fig. 25
1 Filter mat cool air intake
2 Mounting bolts
3 Sound-proofing element
Perform filter mat change as follows:
a) Filter mat cool air intake (-1- Fig. 25)
Remove the mounting screws (-2- Fig. 25).
•
Take out the filter mat (-1- Fig. 25) and clean it,
•
replace it if damaged. Clean the filter mat by
brushing or washing.
Return the filter mat to the silencer chamber
•
(-3- Fig. 25).
Secure the filter mat using the fixing bolts.
•
Cleaning:
Clean the filter mat by brushing or washing.
NOTICE
The filter pad may not be installed while wet or
moist!
45
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