10.11 Checking the overheating safety shutdown function
The machine should shut down if the airend discharge temperature reaches a maximum of 230 °F.
➤ Check the safety shutdown function as described in the SIGMA CONTROL 2 operating man‐
ual.
The machine does not shut down?
➤ Have the safety shutdown function checked by an authorized KAESER service represen‐
tative.
10.12 Testing the EMERGENCY STOP push button
Fig. 26 Testing the EMERGENCY STOP push button
9
EMERGENCY STOP push button
Precondition The compressor motor is running.
1. Press the EMERGENCY STOP push button.
The compressor motor stops, the pressure system is vented, and the machine is prevented
from automatically restarting.
The compressor motor does not stop?
The safety function of the EMERGENCY STOP push button is no longer ensured.
➤ Shut down the machine immediately and call an authorized KAESER service representa‐
tive.
2. Turn the EMERGENCY STOP push button in the direction of the arrow to unlatch it.
3. Acknowledge the alarm message.
10.13 Checking the cooling oil level
The sightglass allows a risk-free reading of the cooling oil level. The oil indicator should be fully
filled with oil when the machine is at standstill. The correct oil level cannot be seen.
The ideal situation is with the oil level around the optimum mark when the machine is running.
Operating state
Minimum oil level
Maximum oil level
LOAD
Tab. 39 Permissible cooling oil level under LOAD
10 Maintenance
10.11 Checking the overheating safety shutdown function
64
Operator Manual Screw Compressor
SM Tri-Voltage, SIGMA CONTROL 2
9_5875 33 USE
