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1.5 Safety precautions during maintenance or repair
All responsibility for any damage or injury resulting from neglecting these precautions, or
non-observance of the normal caution and care required for installation, operation,
maintenance and repair, even if not expressly stated, will be disclaimed by the
manufacturer.
1. Always use the correct safety equipment (such as safety glasses, gloves, safety shoes, and so on).
2. Use only the correct tools for maintenance and repair work.
3. Use only genuine spare parts.
4. All maintenance work shall only be undertaken when the machine has cooled down.
5. A warning sign bearing a legend such as “Work in progress; do not start” shall be attached to the starting
equipment.
6. Persons switching on remotely controlled machines shall take adequate precautions to ensure that there is no
one checking or working on the machine. To this end, a suitable notice shall be affixed to the remote start
equipment.
7. Before removing any component, effectively isolate the machine from all sources of under- and/or overpressure
and make sure that the pump system is at atmospheric pressure level.
8. Never use flammable solvents or carbon tetrachloride for cleaning parts. Take safety precautions against toxic
vapors of cleaning liquids.
9. Carefully observe cleanliness during maintenance and repair. Keep dirt away by covering the parts and exposed
openings with a clean cloth, paper or tape.
10. Never weld or perform any operation involving heat near the oil system.
11. Whenever there is an indication or any suspicion that an internal part of a machine is overheated, the machine
shall be stopped but no inspection covers shall be opened before sufficient cooling time has elapsed; this to avoid
the risk of spontaneous ignition of the oil vapor when air is admitted.
12. Never use a light source with open flame for inspecting the interior of a machine, pressure vessel, and so on.
13. Make sure that no tools, loose parts or rags are left in or on the machine.
14. All regulating and safety devices shall be maintained with due care to ensure that they function properly. They
may not be put out of action.
15. Before clearing the machine for use after maintenance or overhaul, check that operating pressures, temperatures
and time settings are correct. Check that all control and shut-down devices are fitted and that they function
correctly. If removed, check that the coupling guard of the vacuum/over-pressure pump drive shaft has been
reinstalled.
16. Protect the motor, air filter, electrical and regulating components, and so on to prevent moisture from entering
them, for example when steam cleaning.
17. Make sure that all sound-damping material and vibration dampers, for example, damping material on the
bodywork and in the air inlet and outlet systems of the pump, is in good condition. If damaged, replace it by
genuine material from the manufacturer to prevent the sound pressure level from increasing.
18. Never use caustic solvents which can damage materials of the air net, e.g. polycarbonate bowls.
19. Faults or wearing of seals may cause oil lubricant leaks. Avoid dispersion in soil and pollution of other materials.
Also consult following safety precautions: Safety precautions during operation and Safety
precautions during installation.
These precautions apply to machinery processing or consuming air or inert gas.
Processing of any other gas requires additional safety precautions typical to the application
which are not included herein.
Some precautions are general and cover several machine types and equipment; hence some
statements may not apply to your machine.
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