MIG Welding User Guide

Shop Area: Metal Shop Tool: MIG Welding Requires in-person training: Yes

Procedure Number UG 130-03, Rev. 0

Date DRAFT

 

GENERAL

Millermatic 210 MIG welder

SAFETY

• Before operating equipment, remove tie, rings, watches and other jewelry, and roll sleeves up past the elbows. Remove all loose clothing and confine long hair.
• Non-slip footwear or anti-skid floor strips are recommended.
• Closed toe shoes are required when working in a shop area.
• 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.
• Frequently inspect input power cord for damage or bare wiring − replace cord immediately if damaged.
• 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 workpiece 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.
• Do not touch electrode holders connected to two welding machines at the same time since double open-circuit voltage will be present.
• Keep all panels and covers securely in place.
• Clamp work cable with good metal-to-metal contact to workpiece or worktable as near the weld as practical.
• Insulate work clamp when not connected to workpiece to prevent contact with any metal object.
• Do not connect more than one electrode or work cable to any single weld output terminal.
• Keep your head out of the fumes. Do not breathe the fumes.
• Read and understand the Material Safety Data Sheets (MSDSs) and the manufacturer’s instructions for metals, consumables, coatings, cleaners, and degreasers.
• The heat and rays of the arc can react with vapors to form highly toxic and irritating gases.
• Wear an approved welding helmet fitted with a proper shade of filter lenses to protect your face and eyes when welding or watching (see ANSI Z49.1 and Z87.1 listed in Safety Standards).
• Wear approved safety glasses with side shields under your helmet.
• Use protective screens or barriers to protect others from flash, glare and sparks; warn others not to watch the arc.
• Wear protective clothing made from durable, flame-resistant material (leather, heavy cotton, or wool) and foot protection.
• Shut off shielding gas supply when not in use.
• Do not touch hot parts bare handed.
• Allow cooling period before working on gun or torch.
• To handle hot parts, use proper tools and/or wear heavy, insulated welding gloves and clothing to prevent burns.

REFERENCE

• MIG welding basics
• Millermatic 210 MIG welder user Manual https://www.millerwelds.com/files/owners-manuals/O1325M_MIL.pdf

PROCEDURE

Voltage Control

• Set Voltage control.
• Turn control clockwise to increase voltage.

Wire Speed Control

• Set Wire Speed control.
• Increase or decrease wire speed to obtain desired bead profile and travel speed.

Power Switch

• This switch energizes the main transformer and control circuitry.

Shielding Gas Bottle – make sure it is always chained up, either to the machine or somewhere in the shop. If it falls over with a regulator on it, the gas will try to escape and the gas stream could potentially hurt someone. To prevent the escape of gas when not in use, remove the regulator and fasten a threaded protector cap to the top of the bottle to keep the valve system safe and help prevent a rupture.

 

TROUBLESHOOTING

THIS IS THE END OF THE PROCEDURE