Minimum pressure / check valves, pressure relief valves and inlet valves are powerfully spring-loa‐
ded.
➤ Do not open or dismantle valves.
Rotating components
Touching the fan wheel, the coupling or the belt drive while the machine is switched on can result
in serious injury.
➤ Do not open the enclosure while the machine is activated.
➤ Switch off and lock out the power supply disconnecting device and check that no voltage is
present.
➤ Wear close-fitting clothes and a hair net if necessary.
➤ Make sure all covers and safety guards are in place and secured before re-starting.
Temperature
High temperatures are generated during compression. Touching hot components may cause inju‐
ries.
➤ Avoid contact with hot components.
These include, for example, compressor airends or blocks, oil and compressed air lines, cool‐
ers, oil separator tanks, motors and machine heaters.
➤ Wear protective clothing.
➤ When welding is taking place on or near the machine take adequate measures to ensure that
no parts of the machine or any oil vapours can ignite because of sparks or heat.
Noise
The enclosure absorbs the machine noise to a tolerable level. This function will be effective only if
the enclosure is closed.
➤ Operate the machine only with intact soundproofing.
➤ Wear hearing protection if necessary.
The blowing-off of the pressure relief valve can be particularly loud.
Operating fluids/materials
The used operating fluids and materials can cause adverse health effects. Suitable safety meas‐
ures must be taken in order to prevent injuries.
➤ Strictly forbid fire, open flame and smoking.
➤ Follow safety regulations when dealing with lubricants and chemical substances.
➤ Avoid contact with skin and eyes.
➤ Do not inhale oil mist or vapour.
➤ Do not eat or drink while handling cooling and lubricating fluids.
➤ Keep suitable fire extinguishing agents ready for use.
➤ Use only KAESER approved operating materials.
Unsuitable spare parts
Unsuitable spare parts compromise the safety of the machine.
➤ Use only spare parts approved by the manufacturer for use in this machine.
➤ Use only genuine KAESER replacement parts on pressure bearing parts.
3 Safety and Responsibility
3.5 Dangers
18
Service Manual Screw Compressor
ESD 442/14 bar (abs) SFC SIGMA CONTROL 2 ESD_2C_10357405_10–LIN_00 E
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