Firepower MST 180i Operating Manual page 8

Firepower MST 180i
1. Wear a welding helmet fitted with a proper shade of filter
(see ANSI Z49.1 listed in Safety Standards) to protect
your face and eyes when welding or watching.
2. Wear approved safety glasses. Side shields recommended.
3. Use protective screens or barriers to protect others from
flash and glare; warn others not to watch the arc.
4. Wear protective clothing made from durable, flame-
resistant material (wool and leather) and foot protection.
5. Use approved ear plugs or ear muffs if noise level is high.
FUMES AND GASES can be hazardous to your
health.
Welding produces fumes and gases. Breathing
these fumes and gases can be hazardous to your
health.
AWS F2.2:2001 (R2010), Adapted with permission of the American Welding Society (AWS), Miami, Florida
Process
Shielded Metal Arc Welding (SMAW)
Gas Metal Arc Welding (GMAW) and
Flux Cored Arc Welding (FCAW)
Gas Tungsten arc Welding (GTAW)
Air Carbon Arc Cutting (CAC-A)
Plasma Arc Welding (PAW)
Plasma Arc Cutting (PAC)
* As a rule of thumb, start with a shade that is too dark to see the weld zone. Then go to a lighter shade
which gives sufficient view of the weld zone without going below the minimum. In oxyfuel gas welding,
cutting, or brazing where the torch and/or the flux produces a high yellow light, it is desirable to use a filter
lens that absorbs the yellow or sodium line of the visible light spectrum.
SAFETY INSTRUCTIONS AND WARNINGS
WARNING
Guide for Shade Numbers
Electrode Size in.
(mm)
Less than 3/32 (2.4)
3/32-5/32 (2.4-4.0)
5/32-1/4 (4.0-6.4)
More than 1/4 (6.4)
(Light)
(Heavy)
1-2
1. Keep your head out of the fumes. Do not breathe the
fumes.
2. If inside, ventilate the area and/or use exhaust at the arc
to remove welding fumes and gases.
3. If ventilation is poor, use an approved air-supplied
respirator.
4. Read the Material Safety Data Sheets (MSDSs) and the
manufacturer's instruction for metals, consumables,
coatings, and cleaners.
5. Work in a confined space only if it is well ventilated, or
while wearing an air-supplied respirator. Shielding gases
used for welding can displace air causing injury or death.
Be sure the breathing air is safe.
6. Do not weld in locations near degreasing, cleaning, or
spraying operations. The heat and rays of the arc can react
with vapors to form highly toxic and irritating gases.
7. Do not weld on coated metals, such as galvanized, lead,
or cadmium plated steel, unless the coating is removed
Minimum
Arc Current
Protective
(Amperes)
Shade
Less than 60 7
60-160 8
160-250 10
250-550 11
Less than 60 7
60-160 10
160-250 10
250-550 10
Less than 50 8
50-150 8
150-500 10
Less than
10
500
11
500-1000
Less than 20 6
20-100 8
100-400 10
400-800 11
Less than 20 4
20-40 5
40-60 6
60-80 8
80-300 8
300-400 9
400-800 10
Suggested*
Shade No.
(Comfort)
-
10
12
14
-
11
12
14
10
12
14
12
14
6 to 8
10
12
14
4
5
6
8
9
12
14
Manual 0-5339