Interval Maintenance task See chapter
SIGMA CONTROL dis‐
play
Up to 6,000 h
At least annually
Change the oil filter 10.16
SIGMA CONTROL dis‐
play
Up to 6,000 h
At the latest every 3 years
Change the oil separator cartridge 10.17
Variable (see table 48) Change the cooling oil 10.15
Annually Check that all electrical connections are tight –
Check the safety relief valve 10.10
Check the overheating safety shutdown function 10.11
Check the cooler for leaks 10.5
h = operating hours
Tab. 47 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.
Authorized KAESER Service representative will support you in determining appropriate inter‐
vals and provide information on the possibilities of oil analysis.
➤ Please observe national regulations regarding the use of cooling oil in oil-injected screw com‐
pressors.
➤ Check operating conditions and adjust intervals as necessary.
KAESER LUBRICANTS
SIGMA Lubricant Description Maximum Recommended Change Interval
First oil change Subsequent oil change
M–460 ISO 46 Semi-Synthetic
Lubricant
2,000 Hours 3,000 Hours
S–460 ISO 46 Synthetic Lubri‐
cant
6,000 Hours 8,000 Hours
S–680 ISO 68 Synthetic Lubri‐
cant
6,000 Hours 8,000 Hours
FG–460 ISO 46 Food Grade
Synthetic Fluid
2,000 Hours 3,000 Hours
Tab. 48 Oil change intervals lubricants
10.2.5 Regular Service Work
The table below lists necessary service tasks.
➤ Only authorized KAESER Service representatives should carry out service work.
10 Maintenance
10.2 Maintenance Schedule
62
Service Manual Screw Compressor
ASD T Tri-Voltage 9_5721 06 USE
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