ELETTROLASER MS 3.5, End-User And Maintenance Manual

Page: 27 / 108

code: UMS012 review: 0.2 date: 20/04/2022
Laser Welding machine - MS 3.5
user and maintenance manual page 27 of 102
5.4 Residual risks
The machine requires the preparation of work stations as indicated in the following Tab. 5-1:
Work station N° of operators Operations
In front of the machine 1 operator Welding
Tab. 5-1 –
Work stations
In normal work conditions, the residual risks described below (Tab. 5-2) may still be present:
Parameter Risks P.P.E. *
Transportation and handling
Risk of impact and crushing : due to incorrect use of lifting and
transportation tools, or during manual transportation of the
machine (if the machine is dropped by accident).
Installation, assembly and
connections
Risk of impact and crushing : due to incorrect use of lifting and
transportation tools, or during manual transportation of the
machine (if the machine is dropped by accident).
Risk of impact, tripping and falling : if the area where the
machine is installed is not sufficiently illuminated.
Risk of electrocution and electric shock : if the machine is
connected to a non-suitable/damaged electrical system or if the
device was damaged during transportation or assembly.
Loading and unloading of the
product
Risk of muscular-skeletal injuries : if the operator lifts heavy
materials incorrectly (or by himself/herself) (please also refer to
paragraph 6.3).
Regulations and use
Risk of electrocution and electric shock : if the machine is
connected to a non-suitable/damaged electrical system or if the
device or the cable connecting it to the electrical power supply
network are damaged, modified or altered.
Risk of exposure to laser radiation : direct viewing of the laser
beam and exposure of the skin are hazardous and the viewing of
diffuse radiation can also be dangerous. These lasers are often
associated with a danger of
fire , as they may trigger the
combustion of flammable substances, such as volatile
substances, as well as methacrylate or plastic resins.
Risk of anoxia: if the inerting gas (which does not represent a
health hazard in itself) dangerously reduces the concentration of
oxygen in the air due to inadequate natural ventilation. Do not
cover the ventilation grids. Read the safety data sheets of the
substances in use.
Residual risk due to the formation of smoke and steam during
welding operations:
The interaction of the laser beam with
organic and inorganic materials causes the formation of smoke
and steam which, in some cases, can be harmful to human health
and/or toxic. Therefore, the machine must be placed on a
vacuumed surface or the smoke must be extracted with a suction
system (not supplied with the machine).
Residual risks deriving from the presence of persons unrelated
to operations near the machine.
Risk of impact, tripping and falling : if the area where the system
is installed is not sufficiently illuminated.