Auto Darkening
Welding Helmet
MODEL H7786
INSTRUCTION SHEET
•
•
Wear safety glasses with sides shields or
goggles under the welding helmet.
Wear protective clothing that is fire resistant
like leather or wool. DO NOT wear tennis
shoes or street shoes while welding. Wear
leather boots that come up past the ankles
and have fire resitant soles.
Welding helmets do not provide unlimited
protection for your eyes, ears and lungs.
Personal injury could result from using
this welding helmet without proper protec-
tive gear. Always wear safety glasses, an
approved respirator, and hearing protection
while welding.
•
Protect those around you from welding
flash and fire by using protective barriers or
screens.
•
•
Remove any flammable materials in the area
before you begin to weld.
Have someone perform fire watch while you
are welding and for at least an hour after you
have finished welding, to guard against fire.
Introduction
This Auto Darkening Welding Helmet features a
reaction time of 2ms, 2 sensors, variable shades
from 9-13, adjustable delay from 0.1-1.0 seconds,
•
DO NOT weld if the welding helmet is dam-
aged. Inspect it carefully and replace compo-
nents as needed. Make sure the clear protec-
tive lense is not scratched or covered with
smoke as it may impede the sensors, causing
the auto darkening feature to malfunction and
expose the operator.
1
a view area of 1 ⁄4" x 31⁄4" and a weight of 19 oz.
Along with those features, the headgear is fully
adjustable and is supplied with a sweat band.
Inventory (Figure 2)
A. Welding Hood............................................. 1
B. AAA size Batteries ..................................... 2
•
•
Never use the welding helmet to look at the
sun. The welding helmet is designed for use
while welding, only.
Operation Safety
Welding produces ultraviolet and infrared rays that
are harmful if skin or eyes are left unprotected.
DO NOT perform overhead welding using
this welding helmet. Dripping metal could
damage the auto darkening lense resulting in
its malfunction, exposing the operator.
•
Use a welding helmet that is supplied with
the correct shade filter to protect your eyes
and face while welding or watching a welding
process. Refer to the Shade and Sensitivity
charts on page 4.
•
DO NOT grind while wearing the helmet. The
helmet and/or lense may become damaged
and malfunction.
COPYRIGHT © SEPTEMBER, 2005 BY GRIZZLY INDUSTRIAL, INC.
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#DD7542 PRINTED IN CHINA
Identification
A. Delay Time Dial
B. Sensitivity Dial
C. Battery Compartment
D. View Window
E. Variable Shade Dial
F. "ON" Switch
A
B
G. Solar Cell
H. Sensor
C
Delay Time
D
This feature allows you to control how soon the
auto lense reverts back to the #4 shade condition
after you have stopped welding. This can be very
important when the puddle remains very bright
momentarily.
Figure 2. View of the inside control panel.
E
Sensitivity
You can control how sensitive the sensors are to
the arc light. We recommend that the dial be set in
the middle position for most applications.
Battery Compartment
The helmet uses 2 AAA size batteries which are
installed in this compartment. If the helmet is to be
stored for an extended time, remove the batteries
to avoid damage to the compartment.
F
View Window
Figure 3. View of the left side of helmet.
This window is set to #4 shade when off or when
the sensors are not exposed to strong light.
G
Shade Dial
Adjustments can be made to the amount of shad-
ing the view window provides. The range is from
#9 to #13 shade.
H
H
"ON" Switch
D
Push this button once to turn on the auto darken-
ing feature on the helmet. The helmet will turn off
automatically 15 minutes after the sensors have
been exposed to bright light.
Figure 4. The front of the helmet.
Solar Cell
This unit powers some of the components used
by the auto darkening device.
Operation
Sensitivity Dial
"ON" Switch
As previously mentioned, the auto darkening
lense can be made more sensitive or less sensi-
tive to bright light produced by welding. In most
applications, the dial should be set to middle of its
range. However, the setting should be changed
when used in extreme conditions. Below is a list
of applications and settings that you can use as a
guide for making adjustments.
Push the "ON" button on the side of the helmet.
The auto darkening feature will activate and stay
active for 15 minutes after the last bright light.
You will need to push the button again when this
occurs. Before welding raise the helmet up to a
bright light source and make sure the auto dark-
ening feature activates. If it does not, push the
button and check again. If it still does not work
see the troubleshooting guide at the end of this
instruction sheet.
Stick Welding
Mid Sensitivity
MIG Welding
(short circuit)
Low-Mid Sensitivity
Variable Shade
The shade chart below shows settings that can
be used for various welding processes. We rec-
ommend that you start ANY welding process at
#12 or #13 and reduce the shade as needed for
safety.
MIG Welding
(pulsed or spray)
Mid Sensitivity
Mid-High Sensitivity
Low-Mid Sensitivity
TIG Welding
Plasma Cutting/
Welding
Welding App. Current Amp.
Shade No.
<40
#9
40-80
#10
#11
#12
#13
Stick Welding
80-175
175-300
300-500
MIG
(metal inert
gas)
<100
#10
#11
#12
#13
100-175
175-300
300-500
TIG
(tungsten inert
gas)
<50
#10
#11
#12
#13
50-100
100-200
200-400
Air Carbon
Arc
<500
500-700
#12
#13
Plasma
Cutting
60-150
150-250
250-400
#11
#12
#13
Plasma
Welding
<50
50-200
200-400
#9
#10
#11
Maintenance
Batteries
Lens Cover
To replace the batteries, unclip the cover on
the battery compartment. Be sure to orient the
replacements as described on the compartment
cover or damage could occur to the electronics
in the helmet. Remove the batteries for long term
storage of the helmet.
The lens cover must be clean to insure the proper
and safe operation of the auto darkening feature.
We recommend that the lens cover be removed
and that it be cleaned with warm soapy water
and a soft cloth. Paper towels, solvents and some
glass cleaners will damage the lens cover, reduc-
ing its effectiveness and safe operation. Replace
damaged lens covers.
Troubleshooting
Symptom
Possible Cause
Possible Solution
1. Batteries are low or dead.
1. Replace batteries with new ones.
2. Remove the batteries and orient them as
shown on the battery compartment cover and
reinstall.
Auto darkening lens does
not darken when "ON" 2. Batteries are installed incorrectly.
button is pushed.
3. Contact points on batteries are dirty or cor- 3. Remove the batteries and clean the ends.
roded. Replace corroded batteries with new ones.
4. Power cord from the switch to the circuitry is 4. Contact Grizzly Industrial for repair or replace-
damaged.
ment.
5. Switch is faulty.
5. Contact Grizzly Industrial for repair or replace-
ment.
6. Auto darkening lens is faulty.
6. Contact Grizzly Industrial for repair or replace-
ment.
1. Batteries are low or dead.
1. Replace batteries with new ones.
2. Remove the batteries and orient them as
shown on the battery compartment cover and
reinstall.
Auto darkening lens does
not darken while welding. 2. Batteries are installed incorrectly.
3. Contact points on batteries are dirty or cor- 3. Remove the batteries and clean the ends.
roded.
4. Lens cover is damaged or dirty, impeding the 4. Clean or replace the lens cover.
2 sensors.
5. Sensitivity is set too low.
5. Turn the dial for sensitivity all the way up and
test against a bright light. DO NOT weld to
test.
1. Sensitivity is set too low.
1. Review sensitivity settings section.
Auto darkening lens does
not stay on or flickers dur-
ing welding.
H7786 Parts Breakdown and List
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Ref # Part #
Description
001
002
003
004
005
006
007
008
009
010
011
PH7786001 HELMET BODY
PH7786002 LENSE COVER
PH7786003 AUTO DARKENING LENSE
PH7786004 KNOB
PH7786005 NUT
PH7786006 SCREW
PH7786007 FRICTION KNOB
PH7786008 HEADBAND
PH7786009 FRICTION SCREW
PH7786010 TILT STOP BRACKET
PH7786011 SWEAT BAND
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