6996 0223 96 Issue A
© Edwards Limited 2016. All rights reserved. Page 9
Edwards and the Edwards logo are trademarks of Edwards Limited.
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/overpressure 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.
Note: 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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