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before restarting. Make sure that all electric
connections are securely tightened.
24 Avoid overloading the generator. The generator is
provided with circuit breakers for overload protection.
When a breaker has tripped, reduce the concerned
load before restarting.
25 If the generator is used as stand-by for the mains
supply, it must not be operated without control system
which automatically disconnects the generator from
the mains when the mains supply is restored.
26 Never remove the cover of the output terminals during
operation. Before connecting or disconnecting wires,
switch off the load and the circuit breakers, stop the
machine and make sure that the machine cannot be
started inadvertently or there is any residual voltage
on the power circuit.
27 Running the generator at low load for long periods
will reduce the lifetime of the engine.
Safety during maintenance and repair
Maintenance, overhaul and repair work shall only be
carried out by adequately trained personnel; if required,
under supervision of someone qualified for the job.
1 Use only the correct tools for maintenance and repair
work, and only tools which are in good condition.
2 Parts shall only be replaced by genuine Atlas Copco
replacement parts.
3 All maintenance work, other than routine attention,
shall only be undertaken when the unit is stopped.
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.
4 Prior to stripping an engine or other machine or
undertaking major overhaul on it, prevent all movable
parts from rolling over or moving.
5 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.
6 Never use flammable solvents for cleaning (fire-risk).
7 Take safety precautions against toxic vapours of
cleaning liquids.
8 Never use machine parts as a climbing aid.
9 Observe scrupulous cleanliness during maintenance
and repair. Keep away dirt, cover the parts and
exposed openings with a clean cloth, paper or tape.
10 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.
11 Support the towbar and the axle(s) securely if working
underneath the unit or when removing a wheel. Do not
rely on jacks.
12 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.
13 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.
14 Protect the engine, alternator, air intake filter,
electrical and regulating components, etc., to prevent
moisture ingress, e.g. when steam-cleaning.
15 When performing any operation involving heat,
flames or sparks on a machine, the surrounding
components shall first be screened with non-
flammable material.
16 Never use a light source with open flame for
inspecting the interior of a machine.
17 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.
18 Maintenance and repair work should be recorded in an
operator’s logbook for all machinery. Frequency and
nature of repairs can reveal unsafe conditions.
19 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.
20 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.
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