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SAFETY INSTRUCTIONS AND WARNINGS
FOR OPERATION OF ARC WELDING EQUIPMENT
IMPORTANT
-
READ
AND
UNDERSTAND
THESE
INSTRUCTIONS.
DO
NOT
LOSE
THEM.
ALSO
READ
OPERATING/INSTRUCTION
MANUAL
BEFORE
INSTALLING,
OPERATING,
OR
SERVICING
THIS EQUIPMENT.
A. GENERAL
Welding products and welding proces
ses
can
cause
serious
injury
or
death, or damage to other equipment
or
property,
if
the
operator
does
not
strictly
observe
all
safety
rules
and
take
precautionary
ac
tions.
Safe
practices
have
developed
from
past experience in the use of weld
ing
and
cutting.
These
practices
must
be
learned
through
study
and
training
before
using
this
equip
ment.
Anyone
not
having
extensive
training
in
welding
and
cutting
practices
should
not
attempt
to
weld. Certain of the practices ap
ply to equipment connected to power
lines; other practices apply to en
gine driven equipment.
Safe practices are outlined in the
American National Standard Z49.1 en
titled:
SAFETY
IN
WELDING
AND
CUTTING. This publication and other
guides to what you should learn be
fore
operating
this
equipment
are
listed
in
Section
K
for
your
con
venience in ordering them.
B. MACHINES OR SYSTEMS EQUIPPED WITH
A HIGH FREQUENCY GENERATOR USED IN
TIG WELDING
High frequency power may be hazard
ous. People who wear pacemakers or
other electronic equipment vital to
life should check with the life sup
port manufacturers and their clini
cian to determine whether a hazard
exists.
C. SHOCK PREVENTION
Bare conductors, or terminals in the
output
circuit,
or
ungrounded,
electrically-live
equipment
can
fatally shock a person. To protect
against
shock,
have
a
competent
electrician
verify
that
the
equip
ment
is
adequately
grounded.
Do
not make contact with terminals and
parts that are electrically HOT.
The body's electrical resistance is
decreased
when
wet,
permitting
dan
gerous currents to flow through the
body.
Do
not
work
in
damp
area
without
being
extremely
careful.
Stand on dry rubber mat or dry wood
and use insulating gloves when damp
ness
or
sweat
cannot
be
avoided.
Keep clothing dry.
1.
Installation
and
Grounding
of
Electrically
Powered
Equipment
-
Electrical
equipment
must
be
in
stalled and maintained in accordance
with
the
National
Electrical
Code,
NFPA
70,
and
local
codes.
A
power
disconnect switch must be located at
the
equipment.
Check
nameplate
for
voltage
and
phase
requirements.
If
only
3-phase
power
is
available,
connect
single-phase
equipment
to
only two wires of the 3-phase line.
DO
NOT
CONNECT
the
equipment
grounding
conductor
(lead)
to
the
third live wire of the 3-phase line
as
this
makes
the
equipment
frame
electrically HOT, which can cause a
fatal shock.
Instruction 910081
Aug 27/80 Revised - W1018
June 2/87 Revised
Page 1
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