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:
–
the intended and predictable future use of the products, and the environments in
which they are expected to operate,
–
applicable rules, codes and regulations,
–
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 „work in progress;
do not open“ 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 „work in progress; do
not start“ 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 „work in
progress; do not supply voltage“ 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 operator’s 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 towbar 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
Summary of Contents for XAS 175 Dd
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