American Torch Tip T400 Manuel des pièces détachées - Page 4

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GENERAL SAFETY
1. Disconnect all power before servicing or changing welding gun components. Failure to disconnect power can
lead to dangerous electrical shock which can kill.
2. Smoke, fumes and gases can be dangerous to your health. Keep smoke, fumes and gases from the breathing
area. Fumes from welding are of various types and strengths, depending on the kind of base metal being welded.
3. Arc welding produces dangerous light radiation. Adequate eye protection must be worn.
4. All exposed skin must be covered with flame resistant, protective clothing. Do not wear clothing made from
flammable synthetic fibers.
5. Protective screens or barriers should be used to protect others from spatter, flash and glare while welding.
TROUBLESHOOTING
1. Poor Wire Feed
• Conduit liner clogged or kinked
• Incorrect liner size or contact tip
• Line cut too short and not seating properly in gas diffuser
• Drive rolls too tight resulting in scoring of welding wire
• Welding wire dirty, rusty and/or too much cast
2. Short Tip Life
• Drive rolls too tight resulting in scoring of the welding
wire
• Welding wire dirty, rusty and/or too much cast
• Uncoated wire being used, increasing usage
• Wrong tip size
• Over torch rated duty cycle
• Loose contact tip and/or retaining head
3. Gun Overheating
• Loose retaining screw on quick connect block
• Insufficient gauge power cable and/or ground cable
• Loose connector cone and/or cone nut
• Gun being run beyond its amperage range
• Electrical malfunction in power source
4. Switch Malfunctioning
• Bad connection of leads to switch terminals
• Spatter built up between lever and switch housing
• Contacts dirty in switch
• Switch housing screws loose
• Broken or worn switch lead
CONTACT US
AMERICAN TORCH TIP CO.
1.800.342.8477
INT'L PH . 941.753.7557
FAX: 941.753.6917
WEBSITE: www.americantorchtip.com
5. Weld Porosity
6. Contact Tip Burn Back
7. Erratic Arc
8. Extreme Spatter
The
Large Curve MIG Gun
Robotic MIG Gun
• Spatter built up in nozzle blocking gas
• Leaks in gas hose or improper connection
• O-rings on power pin are cut or damaged
• Inner tube loose from connector cone
• Improper shielding gas or welding wire
• Rusty or poor quality welding wire
• Parent metal rusty or contaminated or high in Sulfur
content
• Flow improperly set
• Improper voltage and/or wire feed speed
• Erratic wire feeding
• Improper tip stick-out
• Improper electrode stick-out
• Faulty ground
• Worn contact tip
• Buildup inside of line
• Wrong tip size
• Not enough bend in neck
• Improper machine parameters
• Improper tip installation
• Improper tip shielding
• Contaminated wire or work piece
Family of MIG Guns
Small Curve MIG Gun
Semi-Auto MIG Gun
Automatic MIG Gun