Weldtronic TM250C Operating Manual page 10

 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 WeII-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 according to instructions in
Maintenance Section before touching any parts.
FUMES AND GASES can be hazardous.
Welding produces fumes and gases. Breathing these fumes and gases can be hazardous
to your health.
 Keep your head out of the fumes. Do not breathe the fumes.
 If inside, ventilate the area and/or use exhaust at the arc to remove welding fumes and gases.
 If ventilation is poor use an approved air-supplied respirator.
 Read the Material Safety Data Sheets (MSDSs) and the manufacturers' instructions for metals,
consumables, coatings, cleaners, and degreasers.
 Work in a confined space only if it is well ventilated, or while wearing an air-supplied respirator. Always
have a trained watch-person nearby. Welding fumes and gases can displace air and lower the oxygen level
causing injury or death. Be sure the breathing air is safe.
 Do not weld in locations near degreasing, cleaning, or spraying operations. The heat and rays of the arc can
react with vapours to form highly toxic and irritating gases.
 Do not weld on coated metals, such as galvanized, lead, or cadmium plated steel, unless the coating is
removed from the weld area, the area is well ventilated, and if necessary, while wearing an air-supplied
respirator. The coatings and any metals containing these elements can give off toxic fumes if welded.
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