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At the bottom of the lens cassette, there are two battery compart-
ments. Carefully pry open the compartments using a very small
flathead screwdriver. The battery holders slide straight out; do not
use excessive force nor insert the screwdriver farther than neces-
sary when opening the compartments.
Remove the two batteries and dispose of them according to local
regulations or return them to the manufacturer. Insert the new
batteries into the battery holders (Figure 15). Push the holders
into the lens cassette until they snap into position. NOTE: always
replace both batteries at the same time.
Insert the bottom of the lens cassette into the bottom of the lens
opening on the helmet (Figure 16). Push the top of the lens cas-
sette against the two locking tabs at the top of the helmet's lens
opening (Figure 17) until the lens snaps into position. Replace the
front panel as described in "Replacing the Outer Protection Plate"
section (Figures 8, 9 and 10).
Cleaning
Clean the Speedglas welding lens with a clean lint-free tissue or
cloth. Do not immerse in water. Never use solvents.
After removing the Speedglas lens, clean
the welding helmet and the headband with
mild soap and lukewarm water only. Never
use solvents or any type of flammable liquid
to clean any type of personal protection
equipment.
14
Shade Guide
Welding
Arc Current Protective
Process
Shielded Metal Arc
Less than 60
Welding (SMAW)
60 to 160
160 to 250
250 to 550
Gas Metal Arc Welding
Less than 60
and Flux Cored
60 to 160
(GMAW)(MIG)
160 to 250
250 to 550
Gas Tungsten Arc Welding
Less than 50
(GTAW)(TIG)
50 to 150
150 to 500
Air Carbon (light)
Less than 500
Air Carbon (heavy)
500 to 1000
Plasma Arc Welding (PAW) 20 to 100
100 to 400
400 to 800
Plasma Arc Cutting (PAC)
Light
Less than 300
Medium
300 to 400
Heavy
400 to 800
Carbon Arc Welding (CAW) —
*Based on ANSI/ASC Z49.1, AWS F2.2-89. Shade numbers are
given as guide only and may be varied to suit application needs.
Consult your on-site training officer, industrial hygienist, or safety
manager.
Suggested
Minimum Protective
Shade
(Amperes)
Shade
(Comfort)
7
—
8
10
10
12
11
14
7
—
10
11
10
12
10
14
8
10
8
12
10
14
10
12
11
14
8
10
10
12
11
14
8
9
9
12
10
14
—
14
EN
15
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