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14. If the ground is not level or can be subject to variable inclination,
consult Atlas Copco.
15. The electrical connections shall correspond to the local codes. The
units shall be grounded and protected against short circuits by fuses.
Operation
1. Air hoses shall be of correct size and suitable for the working pressure.
Never use frayed, damaged or deteriorated hoses. Use only the correct
type and size of hose end fittings and connections. When blowing
through a hose or air line, ensure that the open end is held securely .
A free end will whip and may cause injury . Make sure that a hose is
fully depressurized before disconnecting it.
Never play with compressed air. Do not apply it to your skin or
direct an air stream at people. Never use it to clean dirt from your
clothes. When using it to clean equipment, do so with extreme caution
and use eye protection.
2. The compressor is not considered as capable of producing air of
breathing quality. For breathing air quality , the compressed air must
be adequately purified according to local legislation and standards.
3. Never operate the units when there is a possibility of taking in
flammable or toxic fumes.
4. Never operate the units at pressures below or in excess of their limit
ratings as indicated on the Principal Data sheet.
5. Keep all bodywork doors shut during operation. The doors may be
opened for short periods only, e.g. to carry out checks. W ear ear
protectors when opening a door .
6. People staying in environments or rooms where the sound pressure
level reaches or exceeds 90 dB(A) shall wear ear protectors.
7. Periodically check that:
a. All guards are in place and securely fastened
b. All hoses and/or pipes inside the unit are in good condition, secure
and not rubbing
c. There are no leaks
d. All fasteners are tight
e. All electrical leads are secure and in good order
f. Safety valves and other pressure-relief devices are not obstructed
by dirt or paint
g. Air outlet valve and air net, i.e. pipes, couplings, manifolds,
valves, hoses, etc. are in good repair , free of wear or abuse
8. If warm cooling air from compressors is used in air heating systems,
e.g. to warm up a workroom, take precautions against air pollution
and possible contamination of the breathing air .
9. Do not remove any of, or tamper with, the sound-damping material.
Maintenance
Maintenance and repair work shall only be carried out under supervision
of someone qualified for the job.
1. Use only the correct tools for maintenance and repair work.
2. Use only genuine spare parts.
3. All maintenance work, other than routine attention, shall only be
undertaken when the unit is stopped, the main power supply is
switched of f and the machine has cooled down. T ake positive
precaution to ensure that the unit cannot be started inadvertently .
In addition, a warning sign bearing a legend such as "work in
pr ogress; do not star t" shall be attached to the starting equipment.
4. Before removing any pressurized component, ef fectively isolate the
unit from all sources of pressure and relieve the entire system of
pressure.
5. Never use flammable solvents or carbon tetrachloride for cleaning
parts. T ake safety precautions against toxic vapours of cleaning
liquids.
6. Scrupulously observe cleanliness during maintenance and repair.
Keep dirt away by covering the parts and exposed openings with a
clean cloth, paper or tape.
7. Never weld or perform any operation involving heat near the oil
system. Oil tanks must be completely purged, e.g. by steam-cleaning,
before carrying out such operations.
Never weld on, or in any way modify, pressure vessels.
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 suf ficient cooling time
has elapsed; this to avoid the risk of spontaneous ignition of the oil
vapour when air is admitted.
Never use a light source with open flame for inspecting the interior
of a machine, pressure vessel, etc.
8. Make sure that no tools, loose parts or rags are left in or on the unit.
9. Before clearing the unit for use after maintenance or overhaul, check
that operating pressures, temperatures and time settings are correct
and that the control and shut-down devices function correctly. If
removed, check that the coupling guard of the compressor drive shaft
has been reinstalled.
10. Every time the separator element is renewed, examine the discharge
pipe and the inside of the oil separator vessel for carbon deposits; if
excessive, the deposits should be removed.
11. Protect the motor, air filter, electrical and regulating components,
etc. to prevent moisture from entering them, e.g. when steam-cleaning.
12. Make sure that all sound-damping material, e.g. on the bodywork
and in the air inlet and outlet systems of the compressor , is in good
condition. If damaged, replace it by genuine Atlas Copco material
to prevent the sound pressure level from increasing.
13. Never use caustic solvents which can damage materials of the air
net, e.g. polycarbonate bowls.
14. The following safety precautions are stressed when handling
refrigerant:
a. Never inhale refrigerant vapours. Check that the working area
is adequately ventilated; if required, use breathing protection.
b. Always wear special gloves. In case of refrigerant contact with
the skin, rinse the skin with water . If liquid refrigerant contacts
the skin through clothing, never tear of f or remove the latter;
flush abundantly with fresh water over the clothing until all
refrigerant is flushed away; then seek medical first aid.
c. Always wear safety glasses.
15. Protect hands to avoid injury from hot machine parts, e.g. during
draining of oil.
Note: W ith stationary machine units driven by an internal combustion
engine, allowance has to be made for extra safety precautions, e.g. spark
arrestors, fuelling care, etc. Consult Atlas Copco.
All r esponsibility for any damage or injur y r esulting fr om neglecting
these pr ecautions, or by non-observance of ordinar y caution and due
car e requir ed in handling, operating, maintenance or r epair, even if
not expressly mentioned in this book, will be disclaimed by Atlas
Copco.
SAFETY PRECAUTIONS (continued)
2920 1377 03 2/2