Fig. 13 Inlet valve filling port
1
Screw plug
2
Inlet valve
1. Unscrew the filler plug from the inlet valve.
2. Pour the stipulated amount of cooling oil into the airend and replace the filler plug.
3. Turn the airend manually by means of the belt pulley to distribute the oil.
7.6 Option C1
Activating and deactivating the MODULATING control
Use a shut-off valve to activate and deactivate the MODULATING control. If the MODULATING
control is deactivated, the machine always delivers the maximum possible compressed air quantity
in LOAD mode.
MODULATING control
Shut-off valve
Switch on
open
Switch off
close
Tab. 30 MODULATING control: Setting the shut-off valve
Precondition The power supply disconnecting device is switched off,
the device is locked off,
the absence of any voltage has been verified.
7
Initial Start-up
7.6
Activating and deactivating the MODULATING control
9_5875 33 USE
Operator Manual Screw Compressor
SM Tri-Voltage, SIGMA CONTROL 2
43