➤ Take note of the controller's service messages and carry out tasks punctually, taking ambient
and operating conditions into account.
Interval Maintenance task see chapter
Weekly Check the cooling oil level. 10.13
Cooler:
Check the filter mat
10.3
Control cabinet:
Check the filter mat
10.4
up to 1000 h Clean the cooler. 10.5
Check the air filter. 10.7
Cooler:
Clean the filter mat.
10.3
Control cabinet:
Clean the filter mat.
10.4
up to 3000 h Control cabinet:
Change the filter mat.
10.4
Cooler:
Change the filter mat.
10.3
Display:
SIGMA CONTROL 2
Maintain the drive belt. 10.9
Change the air filter. 10.7
Display:
SIGMA CONTROL 2
at least annually
Change the oil filter. 10.17
Change the oil separator cartridge. 10.18
Variable, see table 37 Change the cooling oil. 10.16
up to 12000 h Replace the drive belt. 10.9
Annually Check the safety relief valve. 10.10
Check the function:
Safety shut-down due to excessive airend discharge tem‐
perature.
10.11
Check the EMERGENCY STOP control device. 10.12
Check the function:
Safety shut down when opening the machine.
7.9
Check the cooler for leaks. 10.5
Maintain the heat recovery system. 10.6
Check that all electrical connections are tight. –
h = operating hours
Tab. 36 Regular maintenance tasks
10.2.4 Cooling oil changing interval
Machine utilization and ambient conditions are important criteria for the number and length of the
change intervals.
10 Maintenance
10.2 Following the maintenance plan
56
Operator Manual Screw Compressor
SM Tri-Voltage, SIGMA CONTROL 2 9_5875 33 USE
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