10 Maintenance
10.1 Ensuring safety
Follow the instructions below to ensure safe machine maintenance.
Warning instructions are located before a potentially dangerous task.
Disregard of warning instructions can cause serious injuries!
Complying with safety notes
Disregard of safety notes can cause unforeseeable dangers!
➤ Follow the instructions in chapter 3 'Safety and Responsibility'.
➤ Maintenance work may only be carried out by authorized personnel.
➤ Use one of the safety signs below to advise others that the machine is currently being serv‐
iced:
Sign Meaning
Don't activate the machine.
Warning:
The machine is being serviced.
Tab. 56 Advise others that the machine is being serviced.
➤ Before switching on, make sure that nobody is working on the machine and all access doors
and panels are closed.
When working on live components
Touching voltage carrying components can result in electric shocks, burns or death.
➤ Work on electrical equipment may only be carried out by authorized electricians.
➤ Switch off and lock out the power supply isolating device and verify the absence of voltage.
➤ Check that there is no voltage on potential-free contacts.
When working on pressure system
Compressed air is contained energy. Uncontrolled release of this energy can cause serious injury
or death. The following safety concerns relate to any work on components that could be under
pressure.
➤ Close shut-off valves or otherwise isolate the machine from the compressed air network to en‐
sure that no compressed air can flow back into the machine.
➤ De-pressurise all pressurised components and enclosures.
➤ Check all hose couplings in the compressed air system with a hand-held pressure gauge to en‐
sure that they all read 0 bar.
➤ Do not open or dismantle any valves.
10 Maintenance
10.1 Ensuring safety
901824 12 E
Operating Manual Screw Compressor
ASK
59
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