5
I
NTRODUCTION
The policy of Atlas Copco is to provide the users of their equipment with safe,
reliable and efficient products. Factors taken into account are among others:
Ð
the intended and predictable future use of the products, and the
environments in which they are expected to operate,
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applicable rules, codes and regulations,
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the expected useful product life, assuming proper service and
maintenance.
Before handling any product, take time to read the relevant instruction book.
Besides giving detailed operating instructions, it also gives specific
information about safety, preventive maintenance, etc.
These precautions are general and some statements will therefore not always
apply to a particular unit.
When handling, operating, overhauling and/or performing maintenance or
repair on Atlas Copco equipment, the mechanics are expected to use safe
engineering practices and to observe all relevant local safety requirements and
ordinances. The following list is a reminder of special safety directives and
precautions mainly applicable to Atlas Copco equipment.
This brochure applies to machinery processing or consuming air or inert
gas. Processing of any other gas requires additional safety precautions
typical to the application and are not included herein.
All responsibility for any damage or injury resulting from neglecting
these precautions or by non-observance of ordinary caution and due care
required in handling, operating, maintenance or repair, also if not
expressly mentioned in this brochure or the instruction book(s), is
disclaimed by Atlas Copco.
If any statement does not comply with local legislation, the stricter of the
two shall be applied. Statements in this brochure should not be
interpreted as suggestions, recommendations or inducements that it
should be used in violation of any applicable laws or regulations.
G
ENERAL SAFETY PRECAUTIONS
1
The owner is responsible for maintaining the unit in a safe operating
condition. Unit parts and accessories must be replaced if missing or
unsuitable for safe operation.
2
Use only lubricating oils and greases recommended or approved by Atlas
Copco or the machine manufacturer. Ascertain that the selected lubricants
comply with all applicable safety regulations, especially with regard to
explosion or fire risk and the possibility of decomposition or generation
of hazardous gases.
3
The supervisor, or the responsible person, shall at all times make sure that
all instructions regarding machinery and equipment operation and
maintenance are strictly followed and that the machines with all
accessories and safety devices, including the entire compression or
vacuum system with pipes, valves, connectors, hoses, etc., as well as the
consuming devices, are in good repair, free of abnormal wear or abuse,
and are not tampered with.
4
Maintenance, overhaul and repair work shall only be carried out by
adequately trained personnel; if required, under supervision of someone
qualified for the job.
5
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 vapour when air is
admitted.
6
Maintenance work, other than routine attention, shall only be undertaken
when the machine is standing still.
7
Before dismantling any pressurized component, the compressor or the
equipment shall be effectively isolated from all sources of pressure and be
completely vented to atmosphere. In addition, a warning sign bearing a
legend such as ãwork in progress; do not openÒ shall be attached to each
of the isolating valves.
8
Before a machine is being repaired, steps shall be taken to prevent
inadvertent starting. In addition, a warning sign bearing a legend such as
ãwork in progress; do not startÒ shall be attached to the starting
equipment. On engine-driven units the battery shall be disconnected and
removed or the terminals covered by insulating caps. On electrically
driven units the main switch shall be locked in open position and the fuses
shall be taken out. A warning sign bearing a legend such as ãwork in
progress; do not supply voltageÒ shall be attached to the fuse box or main
switch.
9
Normal ratings (pressures, temperatures, speeds, etc.) shall be durably
marked.
10 Never operate a machine or equipment beyond its rated limits (pressure,
temperature, speed, etc.).
11 Maintenance and repair work should be recorded in an operatorÕs logbook
for all machinery. Frequency and nature of repairs can reveal unsafe
conditions.
12 The machinery and pneumatic equipment shall be kept clean, i.e. as free
as possible from oil, dust or other deposits.
13 To prevent an increase in working temperature, inspect and clean heat
transfer surfaces (cooler fins, intercoolers, water jackets, etc.) regularly.
For every machine establish a suitable time interval for cleaning
operations.
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 Care shall be taken to avoid damage to safety valves and other pressure-
relief devices, especially to avoid plugging by paint, oil coke or dirt
accumulation, which could interfere with the functioning of the device.
16 Pressure and temperature gauges shall be checked regularly with regard to
their accuracy. They shall be replaced whenever outside acceptable
tolerances.
17 Parts shall only be replaced by genuine Atlas Copco replacement parts.
18 Safety devices shall be tested as described in the maintenance schedule of
the instruction book(s) to determine that they are in good operating
condition.
19 Never use flammable solvents or carbon tetrachloride for cleaning parts.
Take safety precautions against toxic vapours when cleaning parts in or
with cleaning products.
20 Observe scrupulous cleanliness during maintenance and repair. Keep
away dirt by covering the parts and exposed openings with clean cloth,
paper or tape.
21 Protect the motor, alternator, air intake filter, electrical and regulating
components, etc. to prevent moisture ingress, e.g. when steam-cleaning.
22 When performing any operation involving heat, flames or sparks on a
machine, the surrounding components shall first be screened with non-
flammable material.
23 Never use a light source with open flame for inspecting the interior of a
machine, pressure vessel, etc.
24 On portable units, support the drawbar and axle(s) securely if working
underneath the units or when removing a wheel. Do not rely on jacks.
25 Prior to stripping a compressor, engine or other machine or undertaking
major overhaul on it, prevent all movable parts with a mass exceeding 15
kg (30 lbs) from rolling over or moving.
26 When repair has been completed, make sure that no tools, loose parts or
rags are left in, or on, the machine, the prime mover or the driving gear.
The machine shall be barred over at least one revolution for reciprocating
machines, several revolutions for rotary ones to ensure that there is no
mechanical interference within the machine or driver. Check the direction
of rotation of electric motors when starting up the machine initially and
after any alteration to the electrical connection(s) or switch gear, to check
that the oil pump and the fan function properly.
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SAFETY PRECAUTIONS FOR PORTABLE COMPRESSORS
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To be read attentively and acted accordingly before towing, lifting, operating,
performing maintenance or repairing the compressor
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