MAC TOOLS MW13O - Arc Welding Safety Precautions

The
following
safety
alert
symbol
and
signal
words
are
used
throughout
this manual
to
call
attention
to
and
identify
different
levels
of
hazard and
special
instructions.
a
WARNING
WARNING
statements
identify
procedures
or
practices
which
must
be
followed to
avoid
serious
personal
injury
or
loss
of
life
-________________________
a
CAUTION
CAUTION
statements
identify
procedures
or
practices
which
must
be
followed
to
avoid
minor
personal
injury
or
damage
to
this
equipment.
~
IMPORTANT:
statements
identify
special
instructions
necessary
for the
most efficient
operation
of
this
equipment.
ARC
WELDING
SAFETY
PRECAUTIONS
ELECTRIC SHOCK
can
kill.
Touching
live
electrical
parts
can
cause
fatal
shocks
or severe
burns.
The
electrode and
work
circuit is
electrically
live
whenever
the
output
is
on.
The
input
power
circuit
and
machine internal circuits
are
also
live when
power
is
on.
In
Semiautomatic
or
automatic
wire
welding,
the
wire,
wire
reel,
drive roll
housing.
and
all metal
parts touching
the
welding
wire
are
electrically
live.
Incorrectly
installed
or
improperly
grounded
equipment
is
a
hazard.
1.
Do
not
touch
live
electrical
parts.
2.
Wear
dry,
hole-free
insulating
gloves
and
body
protection.
3.
Insulate
yourself
from
work
and
ground using dry
insulating
mats
or
covers.
4. Disconnect
input
power
or
stop
engine
before
installing
or
servicing
this
equipment.
5.
Properly
install
and
ground
this
equipment
according
to
its
Owners
Manual
and
national,
state,
and local codes.
Turn
off
all
equipment
when
not
in
use.
Do
not
use
worn,
damaged,
undersized,
or
poorly spliced
cables.
Do
not
wrap
cables
around
your
body.
Ground
the
workpiece
to
a
good
electrical
(earth)
ground.
Do
not
touch
electrode
while
in
contact
with the work
(ground)
circuit.
11.
Use
only
well-maintained
equipment.
Repair
or
replace
damaged
parts
at
once.
12.
Wear
a
safety
harness
to
prevent falling
if
working
above floor
level.
13.
Keep
all
panels
and
covers
securely
in
place.
a
WARNING
ARC
WELDING
can
be hazardous.
PROTECT
YOURSELF
AND
OTHERS
FROM
POSSIBLE
SERIOUS
INJURY OR
DEATH. KEEP
CHILDREN
AWAY.
PACEMAKER
WEARERS
KEEP AWAY
UNTIL
CONSULTING
YOUR
DOCTOR.
In
welding,
as
in
most
jobs,
exposure
to
certain
hazards
occurs.
Welding
is
safe
when
precautions
are
taken.
The
safety
information
given
below
is
only
a
summary
of
the
more
complete
safety
informatic
that
will
be
found
in
the
Safety
Standards
listed
on
the
next
page.
Read
and
follow
all
Safety
Standards.
HAVE
ALL
INSTALLATION,
OPERATION,
MAINTENANCE,
~D
REPAIR
WORK
PERFORMED
ONLY
BY
QUALIFIED
PEOPLE.
6.
7.
8.
9.
10.
.
ARC RAYS
can
burn
eyes
and
skin;
1.
Wear
a
welding
helmet
fitted
with
a
proper
shade
of
filter
(see
NOISE
can
damage
hearing.
ANSI Z49. 1
listed
in
Safety
Standards)
to
protect
your
face
and
eyes
when
welding
or
watching.
Arc
rays
from
the
welding
process
produce
intense
2.
Wear
approved
safety glasses.
Side
shields
recommended.
heat
and
strong
ultraviolet
rays
that
can
burn
eyes
3. Use
protective
screens or
barriers
to
protect
others from
flash
and skin.
Noise from
some
processes
can
damage
and
glare;
warn
ethers
not to
watch
the
arc.
hearing.
4.
Wear
protective
clothing
made
from
durable,
flame-resistant
material
(wool
and
leather)
and
foot
protection.
5.
Use
approved
ear
plugs
or
ear
muffs
if
noise level is
high.
FUMES
AND
GASES
can
be
hazardous
5.
Work
in
a
confined
space
only
if
it is
well
ventilated,
or
while
~
to
your
health.
wearing
an
air-supplied respirator.
Shielding
gases
used
for
Welding
producesfumesand
gases.
Breathingthese
welding
can
displace
air
causing
injury
or
death.
Be
sure
the
fumes
and
gases
can
be
hazardous to
your
health.
breathing
air
is
safe.
6.
Do
not
weld
in
locations
near
degreasing.
cleaning,
or
spraying
I
Keep
your
head
out
of
the
fumes.
Do
not
breath
the
fumes,
operations.
The
heat and
rays
of
the
arc
can
react
with
vapors
to
form
highly
toxic and
irritating
gases.
2.
If
inside,
ventilate
the
area
and/or
use
exhaust
at
the
arc
to
remove
welding
fumes
and
gases.
7.
Do
not
weld
on
coated
metals,
such
as
galvanized,
lead,
or
3.
If
ventilation
is
coor,
use
an
approved air-supplied
respirator.
cadmium
plated
steel,
unless
the
coating
is removed
from
the
4. Read the
Material
Safety
Data
Sheets
(MSDSs)
and the
weld
area,
the
area
is
well
ventilated,
and
if
necessary,
while
manufacturers
instruction for
metals,
consumables,
coatings,
wearing
an
air-supplied
respirator.
The
coatings
and
any
metals
and
cleaners,
containing
these elements
can
give
off
toxic fumes
if
welded.