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4 Before dismantling any pressurized component, the
compressor or equipment shall be effectively isolated
from all sources of pressure and the entire system shall
be relieved of pressure. Do not rely on non-return
valves (check valves) to isolate pressure systems. In
addition, a warning sign bearing a legend such as
"work in progress; do not open" shall be attached to
each of the outlet valves.
5 Prior to stripping an engine or other machine or
undertaking major overhaul on it, prevent all movable
parts from rolling over or moving.
6 Make sure that no tools, loose parts or rags are left in
or on the machine. Never leave rags or loose clothing
near the engine air intake.
7 Never use flammable solvents for cleaning (fire-risk).
8 Take safety precautions against toxic vapours of
cleaning liquids.
9 Never use machine parts as a climbing aid.
10 Observe scrupulous cleanliness during maintenance
and repair. Keep away dirt, cover the parts and exposed
openings with a clean cloth, paper or tape.
11 Never weld on or perform any operation involving heat
near the fuel or oil systems. Fuel and 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. Disconnect the
alternator cables during arc welding on the unit.
12 Support the towbar and the axle(s) securely if working
underneath the unit or when removing a wheel. Do not
rely on jacks.
13 Do not remove any of, or tamper with, the sound-
damping material. Keep the material free of dirt and
liquids such as fuel, oil and cleansing agents. If any
sound-damping material is damaged, replace it to
prevent the sound pressure level from increasing.
14 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.
Never mix synthetic with mineral oil.
15 Protect the engine, alternator, air intake filter, electrical
and regulating components, etc., to prevent moisture
ingress, e.g. when steam-cleaning.
16 When performing any operation involving heat, flames
or sparks on a machine, the surrounding components
shall first be screened with non-flammable material.
17 Never use a light source with open flame for inspecting
the interior of a machine.
18 Disconnect –battery-clamp before starting electrical
servicing or welding (or turn battery-switch in "off"
position).
19 When repair has been completed, 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.
20 Maintenance and repair work should be recorded in an
operator's logbook for all machinery. Frequency and
nature of repairs can reveal unsafe conditions.
21 When hot parts have to be handled, e.g. shrink fitting,
special heat-resistant gloves shall be used and, if
required, other body protection shall be applied.
22 When using cartridge type breathing filter equipment,
ascertain that the correct type of cartridge is used and
that its useful service life is not surpassed.
23 Make sure that oil, solvents and other substances likely
to pollute the environment are properly disposed of.
24 Before clearing the unit for use after maintenance or
overhaul, check that operating pressures, temperatures
and speeds are correct and that the control and
shutdown devices function correctly..
Tool applications safety
Apply the proper tool for each job. With the knowledge of
correct tool use and knowing the limitations of tools,
along with some common sense, many accidents can be
prevented.
Special service tools are available for specific jobs and
should be used when recommended. The use of these
tools will save time and prevent damage to parts.
Specific safety precautions
Batteries
When servicing batteries, always wear protecting
clothing and glasses.
- 10 -
1 The electrolyte in batteries is a sulphuric acid solution
which is fatal if it hits your eyes, and which can cause
burns if it contacts your skin. Therefore, be careful
when handling batteries, e.g. when checking the charge
condition.
2 Install a sign prohibiting fire, open flame and smoking
at the post where batteries are being charged.
3 When batteries are being charged, an explosive gas
mixture forms in the cells and might escape through the
vent holes in the plugs. Thus an explosive atmosphere
may form around the battery if ventilation is poor, and
can remain in and around the battery for several hours
after it has been charged. Therefore:
- never smoke near batteries being, or having recently been,
charged,
- never break live circuits at battery terminals, because a
spark usually occurs.
4 When connecting an auxiliary battery (AB) in parallel
to the unit battery (CB) with booster cables: connect
the + pole of AB to the + pole of CB, then connect the
- pole of CB to the mass of the unit. Disconnect in the
reverse order.
Pressure vessels
Maintenance/installation requirements:
1 The vessel can be used as pressure vessel or as
separator and is designed to hold compressed air for the
following application:
- pressure vessel for compressor,
- medium AIR/OIL,
- and operates as detailed on the data plate of the vessel:
- the maximum working pressure ps in bar (psi),
- the maximum working temperature Tmax in °C (°F),
- the minimum working temperature Tmin in °C (°F),
- the capacity of the vessel V in l (US gal).
2 The pressure vessel is only to be used for the
applications as specified above and in accordance with
the technical specifications. Safety reasons prohibit
any other applications.
3 National legislation requirements with respect to re-
inspection must be complied with.
4 No welding or heat treatment of any kind is permitted
to those vessel walls which are exposed to pressure.
5 The vessel is provided and may only be used with the
required safety equipment such as manometer,
overpressure control devices, safety valve, etc.
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