OM-1215 Page 3

1-3. Additional Symbols For Installation, Operation, And Maintenance

FIRE OR EXPLOSION hazard.

DDo not install or place unit on, over, or near
combustible surfaces.
DDo not install unit near flammables.
DDo not overload building wiring – be sure power supply system is
properly sized, rated, and protected to handle this unit.

FALLING UNIT can cause injury.

DUse lifting eye to lift unit only, NOT running
gear, gas cylinders, or any other accessories.
DUse equipment of adequate capacity to lift and
support unit.
DIf using lift forks to move unit, be sure forks are
long enough to extend beyond opposite side of
unit.

OVERUSE can cause OVERHEATING

DAllow cooling period; follow rated duty cycle.
DReduce current or reduce duty cycle before
starting to weld again.
DDo not block or filter airflow to unit.

STA TIC (ESD) can damage PC boards.

DPut on grounded wrist strap BEFORE handling
boards or parts.
DUse proper static-proof bags and boxes to
store, move, or ship PC boards.

MOVING PARTS can cause injury.

DKeep away from moving parts.
DKeep away from pinch points such as drive
rolls.

WELDING WIRE can cause injury.

DDo not press gun trigger until instructed to do
so.
DDo not point gun toward any part of the body,
other people, or any metal when threading
welding wire.

MOVING PARTS can cause injury.

DKeep away from moving parts such as fans.
DKeep all doors, panels, covers, and guards
closed and securely in place.
H.F. RADIATION can cause interference.
DHigh-frequency (H.F.) can interfere with radio
navigation, safety services, computers, and
communications equipment.
DHave only qualified persons familiar with
electronic equipment perform this installation.
DThe user is responsible for having a qualified electrician prompt-
ly correct any interference problem resulting from the installa-
tion.
DIf notified by the FCC about interference, stop using the
equipment at once.
DHave the installation regularly checked and maintained.
DKeep high-frequency source doors and panels tightly shut, keep
spark gaps at correct setting, and use grounding and shielding to
minimize the possibility of interference.
ARC WELDING can cause interference.
DElectromagnetic energy can interfere with
sensitive electronic equipment such as
computers and computer-driven equipment
such as robots.
DBe sure all equipment in the welding area is
electromagnetically compatible.
DTo reduce possible interference, keep weld cables as short as
possible, close together, and down low, such as on the floor .
DLocate welding operation 100 meters from any sensitive elec-
tronic equipment.
DBe sure this welding machine is installed and grounded
according to this manual.
DIf interference still occurs, the user must take extra measures
such as moving the welding machine, using shielded cables,
using line filters, or shielding the work area.

1-4. Principal Safety Standards

Safety in Welding and Cutting, ANSI Standard Z49.1, from American
Welding Society, 550 N.W . LeJeune Rd, Miami FL 33126
Safety and Health Standards, OSHA 29 CFR 1910, from Superinten-
dent o f Documents, U.S. Government Printing Office, Washington, D.C.
20402.
Recommended Safe Practices for the Preparation for Welding and Cut-
ting of Containers That Have Held Hazardous Substances, American
Welding Society Standard A WS F4.1, from American Welding Society ,
550 N.W. LeJeune Rd, Miami, FL 33126
National Electrical Code, NFPA Standard 70, from National Fire Protec-
tion Association, Batterymarch Park, Quincy , M A 02269.
Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1,
from Compressed Gas Association, 1235 Jefferson Davis Highway,
Suite 501, Arlington, VA 22202.
Code for Safety in Welding and Cutting, CSA Standard W117.2, from
Canadian Standards Association, Standards Sales, 178 Rexdale
Boulevard, Rexdale, Ontario, Canada M9W 1R3.
Safe Practices For Occupation And Educational Eye And Face
Protection, ANSI Standard Z87.1, from American National Standards
Institute, 1430 Broadway, New York, NY 10018.
Cutting And Welding Processes, NFP A Standard 51B, from National
Fire Protection Association, Batterymarch Park, Quincy, MA 02269.