Item Symbol Meaning
1
Danger of fatal injury from electric shock!
➤ Before starting any work on electrical equipment:
Switch off and lock out the power supply disconnecting device and verify the ab‐
sence of any voltage.
2
Hot surface!
Risk of burns caused by contact with hot components
➤ Do not touch the surface.
➤ Wear long-sleeved garments (no synthetics such as polyester) and protective
gloves.
3
Risk of serious lacerations or even severing of extremities (fingers) from rotating
components.
➤ Operate the machine only with closed safety guards, access doors and panels.
➤ Switch off and lock out the mains isolating devices and verify the absence of
any voltage before opening any machine enclosure or guard.
4
Risk of injury caused by an automatic machine start!
➤ Switch off and lock out the mains isolating devices and verify the absence of
any voltage before opening any machine enclosure or guard.
5
Risk of fatal injury caused by dismantling valves (spring-loaded or under pressure)!
➤ Do not open or dismantle valves.
➤ Call an authorised Service Technician in the event of a fault.
Tab. 37 Safety signs
3.8 Emergency situations
3.8.1 Correct fire fighting
Suitable measures
Calm and prudent action can safe lives in the event of a fire.
➤ Keep calm.
➤ Give the alarm.
➤ Shut off supply lines if possible.
Mains disconnecting device (all poles)
Cooling water (if present)
Heat recovery (if present)
➤ Warn and move endangered personnel to safety.
➤ Help incapacitated persons.
➤ Close the doors.
➤ When trained accordingly: Attempt to extinguish the fire.
3
Safety and Responsibility
3.8
Emergency situations
24
Service Manual Screw Compressor
ASK T SIGMA CONTROL BASIC
9_5717 20 E
