➤ Observe national regulations regarding the use of cooling oil in oil-injected rotary screw com‐
pressors.
➤ Check operating conditions and adjust intervals as necessary; log the results in table 58 for fu‐
ture reference.
Maximum permissible oil change interval
[operating hours/years]
SIGMA FLUID Favourable operating
conditions*
Unfavourable operat‐
ing conditions
My operating condi‐
tions
S-460 6000**/2 4000/1
S-570 6000**/2 4000/1
MOL 3000/1 2000/1
FG-460 3000/1 2000/1
FG-680 3000/1 2000/1
PANO‐
LIN HLP SYNTH 46
3000/1 2000/1
* Cool to moderate ambient temperatures, low humidity, high duty cycle
** Change intervals of >6000 perating hours are not permissible without an oil analysis.
Tab. 58 Cooling oil Change intervals
10.2.5 Regular service tasks
The table below lists necessary service tasks.
➤ Have an authorised KAESER SERVICE technician carry out service tasks.
➤ Have service tasks carried out in a timely manner, taking the ambient and operating conditions
into account:
Interval Service task
Display:
SIGMA CONTROL 2
Service valves.
Compressor drive motor:
Replace the motor bearings.
Fan motor:
Replace the motor bearings.
up to 36000 h
Every 6 years at the lat‐
est.
Have the plastic pipes and hose lines replaced.
up to 36000 h Replace the control cabinet fan.
After 20 years at the lat‐
est
Replace safety-relevant components of the safety functions.
h = operating hours
Tab. 59 Regular service tasks
10 Maintenance
10.2 Following the maintenance plan
62
Operating Manual Screw Compressor
ASK 901824 12 E
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