Concluding the maintenance:
Maintenance must be acknowledged after the air filter has been maintained.
For more information about acknowledging the maintenance message and resetting the
maintenance timer, see the separate operating manual of the SIGMA CONTROL MOBIL
Precondition Air filter maintained
1. Acknowledge the maintenance message.
■ Confirm the message with the «Acknowledge» key.
■ The «Acknowledge» key is extinguished but the «Information» key is still illuminated.
2. Resetting the maintenance interval counter.
■ Simultaneously press and hold the «Acknowledge» and «Enter» keys for 2 seconds.
■ The system will automatically display the input menu for the password if no password is
active.
■ Password (for example: Customer password: 4512) enter and confirm with the keypad.
■ Simultaneously press and hold the «Acknowledge» key and «Enter» for 2 seconds.
Result The maintenance interval counter is reset and the «Information» key extinguishes.
➤ Close the door.
Dispose of old parts and contaminated materials according to environmental regulations.
10.5.8 Checking safety relief valves
➤ Have safety relief valves checked by an authorized KAESER service representative in accord‐
ance with the maintenance schedule.
10.5.9 Fit the flexible pipe connection
With the machine stopped, the clamping bolts must be freely movable by hand and parallel
with the pipe.
In LOAD operation, all clamping bolts must be equally loaded.
➤ Replace the self-locking nuts.
10 Maintenance
10.5 Compressor Maintenance
154
Operator Manual Screw Compressor
M250 SIGMA CONTROL MOBIL
No.: 9_9570 07 USE