➤ Regularly check safety devices for their correct function.
➤ Do not remove or obliterate labels and notices.
➤ Ensure that labels and notices are clearly legible.
Further information More information on safety devices is contained in chapter 4, section 4.8.
3.7 Safety Signs
The diagram shows the positions of safety signs on the machine. The table lists the various safety
signs used and their meanings.
Fig. 3 Location of safety signs
Item Symbol Meaning
8 Danger of fatal injury from touching electrically live components!
➤ Switch off and lock out the supply disconnecting device and check that no volt‐
age is present.
9 Machine starts automatically!
Severe injury could result from rotating components, electrical voltage and air pres‐
sure.
➤ Isolate from the power supply and lock out before opening any machine enclo‐
sure or guard.
11 Injury and/or contamination can result from breathing compressed air!
Contamination of food can result from using untreated compressed air for food pro‐
cessing!
➤ Never breathe untreated compressed air.
➤ Air from this compressor must meet OSHA 29CFR1910.134 and
FDA 21CFR178.3570 standards, if used for breathing or food processing. Use
proper compressed air treatment.
3 Safety and Responsibility
3.7 Safety Signs
22
Service Manual Screw Compressor
ESD 442/14 bar (abs) SFC SIGMA CONTROL 2 ESD_2C_10357405_10–LIN_00 E
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