Tweco Auto Darkening Welding Helmet - Manual (Page 29)

AUTO-DARKENING WELDING HELMET SERVICE
Manual 0-5045 4-2
4.03 Basic Troubleshooting
FAULT CAUSE REMEDY
1. The Filter Lens does not operate. A. The Battery is discharged. A. Replace Battery with Type CR2032.
B The Battery is not contacting
properly with battery contacts
points.
B. Adjust Battery contact points.
2. The Filter Lens flickers or does
not darken.
A.
B.
Front Cover Lens is dirty or
damaged.
Sensors are obstructed.
A.
B.
Clean Cover Lens a soft cloth.
Replace if necessary.
Clean the Sensors with a soft cloth.
3. Filter Lens stays dark after the
weld is extinguished or the Filter
Lens is dark when no arc is
present.
A.
B.
C.
Sensors are obstructed.
Sensitivity Control not adjusted
correctly.
Ambient light level is too
bright.
A.
B.
C.
Clean the Sensors with a soft
cloth. Adjust the Sensitivity Control
accordingly.
Reduce the ambient light level in
the area.
4. The center of the Filter Lens
viewing area appears darker
than the sides of the Filter Lens
viewing area.
A. This is a normal characteristic
of the LCD Lens.
A. Keep the viewing angle from the
object being welded as close as
possible to 90 degrees.
!
WARNING
If the above troubleshooting recommendations do not resolve the problem, do not use the Auto-Darkening
Welding Helmet. Contact Thermal Arc for further information.