Revision date 11.02.2014
Page 15 of 20
11 SAFETY INSTRUCTIONS
Arc Welding Hazards
The safety information given below is only a summary of the more complete safety information found
in the Safety Standards listed in Section 1-5. 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.
Do not touch live electrical parts. Wear dry, hole-free insulating gloves and body protection. Insulate
yourself from work and ground using dry insulating mats or covers big enough to prevent any
physical contact with the work or ground. Do not use AC output in damp areas, if movement is
confined, or if there is a danger of falling. Use AC output ONLY if required for the welding process. If
AC output is required, use remote output control if present on unit.
Disconnect input power before installing or servicing this equipment. Always verify the supply
ground − check and be sure that input power cord ground wire is properly connected to ground
terminal in the cord plug and that the plug is connected to a properly grounded receptacle outlet.
When making input connections, attach proper grounding conductor first − double-check
connections. Frequently inspect input power cord for damage or bare wiring −replace cord
immediately if
damaged − bare wiring can kill. Turn off all equipment when not in use.
Do not use worn, damaged, undersized, or poorly spliced cables. Do not drape cables over your
body. If earth grounding of the work-piece is required, ground it directly with a separate cable. Do not
touch electrode if you are in contact with the work, ground, or another electrode from a different
machine.
Use only well-maintained equipment. Repair or replace damaged parts at once. Maintain unit
according to manual. Wear a safety harness if working above floor level. Keep all panels and covers
securely in place. Clamp work cable with good metal-to-metal contact to work-piece or worktable as
near the weld as practical. Insulate work clamp when not connected to work-piece to prevent contact
with any metal object. Do not connect more than one electrode or work cable to any single weld
output terminal.
SIGNIFICANT DC VOLTAGE exists after removal of input power on inverters. Turn off inverter,
disconnect input power, and discharge input capacitors before touching any parts.
