OM-235 281 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 EQUIPMENT can injure.

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.
DKeep equipment (cables and cords) away from moving vehicles
when working from an aerial location.
DFollow the guidelines in the Applications Manual for the Revised
NIOSH Lifting Equation (Publication No. 94−110) when manu-
ally lifting heavy parts or equipment.

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.

FLYING SPARKS can injure.

DWear a face shield to protect eyes and face.
DShape tungsten electrode only on grinder with
proper guards in a safe location wearing proper
face, hand, and body protection.
DSparks can cause fires — keep flammables away.

STATIC (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 injure.

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

WELDING WIRE can injure.

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 injure.

DKeep away from moving parts such as fans.
DKeep all doors, panels, covers, and guards
closed and securely in place.
DHave only qualified persons remove doors, panels, covers, or
guards for maintenance and troubleshooting as necessary.
DReinstall doors, panels, covers, or guards when maintenance is
finished and before reconnecting input power.

READ INSTRUCTIONS.

DRead and follow all labels and the Owner’s
Manual carefully before installing, operating, or
servicing unit. Read the safety information at
the beginning of the manual and in each
section.
DUse only genuine replacement parts from the manufacturer.
DPerform maintenance and service according to the Owner’s
Manuals, industry standards, and national, state, and local
codes.
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.