Lincoln Electric IM10131 VIKING 2450D SERIES AUTO-DARKENING HELMETS - Manual (Page 11)

CARTRIDGE AND LENS REPLACEMENT
Replacing Front Clear Cover Lens: Replace the front cover lens if it is dam-
aged. Remove ADF holder assembly per Figure 1. Remove front cover lens from
helmet assembly. Carefully remove gasket from cover lens. Install new cover
lens into gasket and assemble to helmet shell. Make sure to assemble cover
lens and gasket into helmet shell the same way as it was removed.
Replacing Inside Clear Lens: Replace the inside clear lens if it is damaged.
Place your fingernail in recess below cartridge view window and flex lens
upwards until it releases from edges of cartridge view window.
Change the Shade Cartridge: Remove ADF holder assembly from helmet shell.
See figure 1 for removal. Flex top end of the ADF holder to allow for ADF car-
tridge to be removed from frame. Install new ADF cartridge into frame per figure
2 below. Make sure that the ADF cartridge is inserted in ADF holder correctly as
shown. Install ADF holder assembly into helmet shell.
INSTALLING AN AFTERMARKET MAGNIFYING LENS:
Simply slide the magnifying lens into the short rail located on the sides of ADF
holder per Figure 3.
9
Figure 3
Figure 1 Figure 2
SOLUTION
Clean or replace front cover lens.
Clean the Auto-Darkening car-
tridge with soapy water solution
and soft cloth.
Adjust sensitivity to required level.
Clean or replace front cover lens.
Check for cracked or pitted front
cover lens and replace as
required.
Make sure you are not blocking the
sensors or solar panels with your arm
or other obstacle while welding.
Adjust your position so that the sen-
sors can see the weld arc.
Make sure proper shade is selected.
Adjust sensitivity to required
level.
Adjust delay time to required
level.
Replace front cover lens
as needed.
POSSIBLE CAUSE
Front cover lens dirty.
Cartridge dirty.
Sensitivity is set too low.
Front cover lens dirty.
Front cover lens is damaged.
Sensors are blocked or Solar
panel is blocked.
Grind Mode Selected
Sensitivity set too high.
Delay time set too high.
Missing, damaged,
broken, cracked or
distorted front cover
lens.
TROUBLESHOOTING GUIDE
Test your shade cartridge prior to welding by directing the front of the cartridge
toward a bright source of light. Then, using your fingers, rapidly cover and uncov-
er the sensors. The cartridge should darken momentarily as the sensor is
exposed. A torch striker can also be used.
10
PROBLEM
Difficult to see through filter.
Filter does not darken when
arc is struck.
Filter darkening without arc
being struck.
Filter remains dark after
completing a weld.
ADF is
cracked.
Weld spatter
is damaging
the filter.
WARNING
Cease (STOP) using this product if this prob-
lem exists. UV/IR protection may be compro-
mised resulting in burns to the eyes and skin.