Edwards nES Series - Page 15

5. A warning sign bearing a legend such as "Work in progress; do not start" shall be
aached to the starng equipment.
6. Persons switching on remotely controlled machines shall take adequate
precauons to ensure that there is no one checking or working on the machine. To
this end, a suitable noce shall be axed to the remote start equipment.
7. Before removing any component, eecvely 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 ammable solvents or carbon tetrachloride for cleaning parts. Take
safety precauons against toxic vapours of cleaning liquids.
9.
Scrupulously 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 operaon involving heat near the oil system. Oil tanks
must be completely purged, for example, by steam cleaning, before carrying out
such operaons. Never weld on, or in any way modify, pressure vessels.
11.
Whenever there is an indicaon or any suspicion that an internal part of a machine
is overheated, the machine shall be stopped but no inspecon covers shall be
opened before sucient cooling me has elapsed. This will avoid the risk of
spontaneous ignion of the oil vapour when air is admied.
12.
Never use a light source with an open ame for inspecng the interior of a
machine, pressure vessel, and so forth.
13. Make sure that no tools, loose parts or rags are le in or on the machine.
14. All regulang and safety devices shall be maintained with due care to ensure that
they funcon properly. They may not be put out of acon.
15.
Before clearing the machine for use aer maintenance or overhaul, check that
operang pressures, temperatures and me sengs are correct. Check that all
control and shut-down devices are ed and that they funcon correctly. If
removed, check that the coupling guard of the vacuum pump drive sha has been
reinstalled.
16. Every me the separator element is renewed, examine the discharge and the
inside of the oil separator vessel for carbon deposits. If there are excessive
deposits, remove it.
17.
Protect the motor, air lter, electrical and regulang components, and so forth, to
prevent moisture from entering them, for example, when steam cleaning.
18.
Make sure that all sound damping material and vibraon dampers, for example,
damping material on the bodywork and in the air inlet and outlet systems of the
vacuum pump are in good condion. If damaged, replace it with genuine material
from the manufacturer to prevent the sound pressure level from increasing.
19.
Never use causc solvents which can damage materials of the air net, for example,
polycarbonate bowls.
20.
Faults or wearing of seals may cause oil lubricant leaks. Avoid dispersion in soil and
polluon of other materials.
Note:
Refer to Safety precauons during installaon on page 10 Safety precauons
during installaon on page 8 and Safety precauons during operaon on page 12
Safety precauons during operaon on page 9.
07/2020 - Page 11
A35104880_B - Safety and compliance