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1-1.
Symbol Usage
AA
Means
Warning!
Watch Out! There
are
possible
hazards with this
procedure!
The
possible
hazards
are
shown in the
adjoining symbols.
This group of
symbols
means
Warning!
Watch Out?
possible
ELECTRIC
SHOCK,
MOVING
PARTS,
and HOT
PARTS
hazards. Consult
symbols
and related instructions
below
for necessary
actions
to
avoid the hazards.
1-2.
Arc
Welding
Hazards
a
WARNING
The
symbols
shown below
are
used
throughout
this manual
to
call attention
to
and
identify possible
hazards. When you
see
the
symbol,
watch
out,
and follow the related instructions
to
avoid the hazard. The
safety
information
given
below is
only
a
summary of the
more
complete safety
information found
In the
Safety
Standards listed in Section
1-4. Read and
follow all
Safety
Standards.
Only qualified
persons should
install, operate, maintain,
and
repair
this unit.
During operation, keep everybody, especially
children,
away.
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
big enough
to
prevent
any
physical
contact with
the work
or
ground.
4.
Disconnect
input
power
or
stop
engine
before
installing
or
servicing
this
equipment. Lockoutltagout input
power
according
to
OSHA 29 CFR 1910.147
(see Safety Standards).
5.
Properly
install and
ground
this
equipment according
to
its
Owners
Manual and
national,
state,
and local codes.
6.
Always verify
the
supply ground
check and be
sure
that
input
onw~r
ooril
nroiinrl
wira
jq
nronarhi
oonneotarl
to
nrohin~1
11. Do not
drape
cables
over
your
body.
12. If earth
grounding
of the
workpiece
is
required, ground
it
directly
with
a
separate
cable
do
not
use
work
clamp
or
work cable.
13. Do not touch electrode if
you
are
in contact with the
work,
ground,
or
another electrode from
a
different machine.
14. Use
only
well-maintained
equipment. Repair
or
replace
damaged
parts
at
once.
Maintain unit
according
to
manual.
15. Wear
a
safety
harness if
working
above floor level.
16.
Keep
all
panels
and
covers
securely
in
place.
17.
Clamp
work
cable
with
good
metal-to-metal
contact
to
worknia~a
or
worlcthhla
a~ naar
tha waki
as
nraotiral
SECTION
1
-
SAFETY PRECAUTIONS FOR ARC WELDING
9afety_soml
4/95
A
Marks
a
special safety
message.
~ Means
NOTE;
not
safety
related.
terminal in disconnect box
or
that cord
plug
is connected
to
a
properly grounded receptacle
outlet.
7.
When
making input
connections,
attach proper
grounding
conductor first
double-check connections.
8.
Frequently inspect input
power cord for
damage
or
bare
wiring
replace
cord
immediately
if
damaged
bare
wiring
can
kill.
9.
Turn off all
equipment
when
not
in
use.
10. Do
not
use
worn,
damaged,
undersized,
or
poorly spliced
cables.
ARC RAYS
can
burn eyes and
skin;
ARC RAYS
NOISE
can
damage hearing;
FLYING
~
SLAG OR SPARKS
can
injure
eyes.
2.
Wear
a
welding
helmet fitted with
a
proper
shade of filter to
protect
your face and eyes when
welding
or
watching (see
ANSI
Arc rays from the
welding
process
produce
intense
Z49.1 and Z87.1 listed in
Safety Standards).
visible and invisible
(ultraviolet
and
infrared)
rays
3.
Wear
approved safety glasses
with side shields.
that
can
burn eyes and skin. Noise from
some
processes
can
damage
hearing.
Chipping,
4.
Use
protective
screens or
barriers to
protect
others from flash
grinding,
and welds
cooling
throw off
pieces
of
metal
or
slag.
and
glare;
warn
others
not to
watch the
arc.
NOISE
5.
Wear
protective clothing
made from
durable,
flame-resistant
1.
Use
approved
ear
plugs
or ear
muffs if noise level is
high.
material
(wool
and
leather)
and foot
protection.
rJ
FUMES
AND
GASES
can
be
5.
Work in
a
confined r~pace
only
if it is well
ventilated,
or
while
hazardous
to
your health.
wearing
an
air-supplied respirator. Always
have
a
trained
Welding produces
fumes and gases.
Breathing
watchperson nearby. Welding
fumes and gases
can
displace
air
these fumes and gases
can
be hazardous
to
your
and lower the oxygen level
causing injury
or
death. Be
sure
the
health.
breathing
air is safe.
6.
Do not weld in locations
near
degreasing, cleaning,
or
spraying
1.
Keep
your head
out
of the fumes. Do
not
breathe 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 poor,
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
cleaners,
and
degreasers.
containing
these elements,
can
give
off toxic fumes if welded.
OM-167
302
Page
1
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Troubleshooting
