Interval
Maintenance task
see chapter
Up to 1,000 h
Maintain the drive belt.
10.9
Check the air filter.
10.7
Clean the cooler.
10.5
Cooler:
Clean the filter mat.
10.3
Control cabinet:
Clean the filter mat.
10.4
Clean the refrigerant condenser.
10.18.1
Display:
SIGMA CONTROL BASIC
Change the air filter element.
10.7
Cooler: Change the filter mat
10.5
Control cabinet: Change the filter mat
10.4
Display:
SIGMA CONTROL BASIC
At least annually
Change the oil filter.
10.16
Change the oil separator cartridge.
10.17
Variable, see table 53
Change the cooling oil.
10.15
Annually
Check the pressure relief valve.
10.10
Check the overheating safety shutdown function.
10.11
Check the cooler for leaks.
10.5
Maintain the heat recovery system.
10.6
Check that all electrical connections are tight.
–
Have the refrigerant circuit checked and documented by
an authorised KAESER Service Technician.
–
Have the safety pressure switch checked by an author‐
ised KAESER Service Technician.
–
Up to 12,000 h
Replace the drive belt.
10.9
h = operating hours
Tab. 52 Regular Maintenance Tasks
10.2.4 Cooling oil: Change interval
Duty cycles and ambient conditions are important factors influencing the number and length of the
oil change intervals.
KAESER Service will support you in determining suitable intervals and provide information on
the possibilities of oil analysis.
➤ Observe national regulations regarding the use of cooling oil in oil-injected rotary screw com‐
pressors.
10 Maintenance
10.2 Following the maintenance plan
9_5717 20 E
Service Manual Screw Compressor
ASK T SIGMA CONTROL BASIC
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