7
The compressed air generated by this unit contains minute traces of oil and it is therefore not
suited to use in those systems that require totally oil-free air (i.e. food industry, pharmaceutical industry, flour
and powder transport, etc...).
GENERAL PRECAUTIONS
1. The machine owner is responsible for ensuring that the compressor is maintained in such conditions
as to ensure totally safe operation. Any parts or accessories which fail to guarantee safe function are
to be replaced.
2. Use only the oils and lubricants recommended or approved by
ROTAIR S.p.A.
and the engine
manufacturer. Ensure that the selected lubricants comply with all current safety provisions,
particularly as regards explosion or fire risks, and the hazard of the decomposition or production of
harmful gases.
3. The supervisor or the responsible party must ensure that all the instructions concerning the function
and maintenance of both machinery and equipment are always carefully followed, and that the
machines and all the related accessories and safety instruments, comprising the entire compressed
or vacuum air system together with all the related piping, valves, connectors and hoses as well as
the expendable elements are in good conditions, that they are not excessively worn and that they
are not mishandled.
4. All maintenance, overhauling and repair operations are to be undertaken exclusively by adequately
trained staff, and supervised by a person qualified in these types of operations if necessary.
5. Maintenance operations must be undertaken only with the machine at a standstill and with the
electrical power supply disconnected by means of the switch installed by the user.
6. In the event of suspected or evident overheating of an internal machine component it is necessary to
stop the machine, but do not open any inspection hatch before the necessary cooling time has
elapsed, to prevent the risk of the spontaneous combustion of oil vapours on contact with incoming
air.
7. Before proceeding to disassemble any pressurized component, the compressor, or the machine
needs to be suitably isolated from all pressure sources and should be totally exposed to the
atmosphere. Each isolation valve must display a warning sign with the wording “work in progress: do
not open”.
8. Before proceeding with repair work it is necessary to take all the necessary precautions to prevent the
risk of sudden starting up. All the starter instruments must also bear a sign with the following wording
“work in progress. Do not start up”.
9. Never allow the machine or appliance to operate at beyond the established limits (in terms of
pressure, temperature, speed, etc..)
10. The machines and pneumatic appliances are to be kept clean , and free of oil, dust, or other
accumulated dirt.
11. To avoid the risk of the building up of excessive working temperatures, the heat transfer surfaces
must be regularly inspected and cleaned (including cooling fins, coolers and the water jackets, etc).
A suitable programmed cleaning frequency should be established for each machine.
12. All the regulation and safety instruments must be maintained with the greatest care to ensure their
correct function and they must not be placed out of use.
13. Beware of damaging the safety valves and other pressure discharging instruments, obstruction by
means of varnish, oil residue or accumulated dirt is to be avoided as it may effect the working
efficiency of the instrument.
14. The precision of the pressure and temperature indicators should be regularly checked in order to
ensure rapid replacement should the tolerance values be irregular.
15. The parts should be replaced solely using original
ROTAIR S.p.A.
spares.
16. Never use any inflammable solvents or carbon tetrachloride to clean the parts. Take the necessary
precautions to protect against toxic vapours when cleaning using specific chemical products.
17. Always pay the greatest care to cleanliness in all the maintenance and repair operations. Always
protect against dirt by covering the parts and exposed openings with a clean cloth, paper or
adhesive tape.
COUNTER-INDICATIONS
PRECAUTIONS
