Safety During Maintenance And Repair; Tool Applications Safety - Atlas Copco XAHS 37 DD Instruction Manual

33 Do not use aerosol types of starting aids such as ether. Such use could
result in an explosion and personal injury.
34 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.
35 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.
36 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.
37 Running the generator at low load for long periods will reduce the
lifetime of the engine.
1.5 S
AFETY 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 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.
10
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 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.
19 Maintenance and repair work should be recorded in an operator's
logbook for all machinery. Frequency and nature of repairs can reveal
unsafe conditions.
20 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.
21 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.
22 Make sure that oil, solvents and other substances likely to pollute the
environment are properly disposed of.
23 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. Submit the
generator to a testrun, check that the AC power performance is correct.
1.6 T
OOL 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.
Instruction Manual