Lincoln Electric IM10039 VIKING 750S AUTO-DARKENING HELMETS - Manual (Page 9)

HELMET CARE AND MAINTENANCE
Replacing Front Clear Cover Lens: Replace the front cover lens if it is
damaged. Remove ADF holder assembly per instruction below. 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 to helmet shell in 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 above 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 one end of the ADF holder to allow for
ADF cartridge 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 into helmet shell.
Cleaning: Clean the helmet by wiping with a soft cloth. Clean cartridge sur-
faces regularly. Do not use strong cleaning solutions. Clean sensors and
solar cells with soapy water solution and a clean cloth and wipe dry with a
lint-free cloth. Do NOT submerge shade cartridge in water or other solution.
Storage: Store in a clean, dry location.
The VIKING™ 750S helmet does not have capability of mounting an after
market magnifying lens.
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Figure 1 Figure 2
SOLUTION
Clean or replace front cover lens.
Clean the Auto-Darkening cartridge
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.
Check sensitivity knob setting.
Adjust sensitivity 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.
Missing, damaged,
broken, cracked or
distorted front cover
lens.
TROUBLE SHOOTING GUIDE
Test your shade cartridge prior to welding by directing the front of the car-
tridge toward a bright source of light. Then, using your fingers, rapidly cover
and uncover the sensors. The cartridge should darken momentarily as the
sensor is exposed. A torch striker can also be used.
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PROBLEM
Difficult to see through filter.
Filter does not darken when
arc is struck.
Filter darkening without arc
being struck.
ADF is
cracked.
Weld spatter
is damaging
the filter.
WARNING
Cease (STOP) using this product if this problem
exists. UV/IR protection may be compromised
resulting in burns to the eyes and skin.