KAESER ESD 352 SFC, Technical Documentation Manual

Page: 63 / 413

Inspection Inspection interval Inspecting authority
Strength test Every 10 years after installation or the last
inspection
Approved supervisory body
Tab. 25 Inspection intervals according to Ordinance on Industrial Safety and Health
3.5 Dangers
Basic instructions
The following describes the various forms of danger that can occur during machine operation.
Basic safety instructions are found in this service manual at the beginning of each chapter in the
section entitled 'Safety'.
Warning instructions are found before a potentially dangerous task.
3.5.1 Safely dealing with sources of danger
The following describes the various forms of danger that can occur during machine operation.
Electricity
Touching voltage carrying components can result in electric shocks, burns or death.
➤ Allow only qualified and authorised electricians or trained personnel under the supervision of a
qualified and authorised electrician to carry out work on electrical equipment according to elec‐
trical engineering regulations.
➤ Before commissioning or re-commissioning the machine, the user must ensure adequate pro‐
tection against electric shock from direct or indirect contact.
➤ Before starting any work on electrical equipment:
Switch off and lock out the power supply isolator and check that no voltage is present.
➤ Switch off any external power sources.
These could be connections to floating relay contacts or the electrical machine heating, for ex‐
ample.
➤ Use fuses corresponding to machine power.
➤ Check regularly that all electrical connections are tight and in order.
Forces of compression
Compressed gas is contained energy. Uncontrolled release of this force can cause serious injury or
death. The following information concerns work on components that could be under pressure.
➤ Close shut-off valves or otherwise isolate the machine from the gas network to ensure that no
compressed gas can flow back into the machine.
➤ De-pressurise all pressurised components and enclosures.
➤ Do not carry out welding, heat treatment or mechanical modifications on pressurised compo‐
nents (e.g. pipes and vessels) as this influences the component's resistance to pressure.
The safety of the machine is then no longer ensured.
Spring force
Springs under tension or compression store energy. Uncontrolled release of this force can cause
serious injury or death.
3 Safety and Responsibility
3.5 Dangers
ESD_2C_10357405_10–LIN_00 E
Service Manual Screw Compressor
ESD 442/14 bar (abs) SFC SIGMA CONTROL 2
17