YATO YT-73925 Manual De Instrucciones página 6

GB
The content of the manual as per EN 175:1997; EN 379:2003 + A1:2009 / PPE Regulation
Manufacturer: Zhejiang Bouyean Technology Co. Ltd., No. 99 Yingfeng Road, Zhanghan, Jiaojiang, Taizhou, Zhejiang, China.
Importer: TOYA SA, ul. Sołtysowicka 13/15, 51-168 Wrocław, Poland
Product description: The welding helmet with an automatic welding fi lter with manual adjustment is a Category II eye and face protection
designed for individual protection of the eyes and face against mechanical and light hazards. The helmet has increased mechanical resist-
ance. It does not protect against drops and splashes of liquids, coarse and fi ne dust particles, gas and arcs caused by electrical short-cir-
cuits. The helmet shell is made of PA66 polyamide and fi tted with a retaining headband allowing the helmet to be worn on the head made of
polyethylene and helmet lining made of PU foam. The welding fi lter protects the eyes against radiation generated by electric arc welding and
has a darkening adjustment in the range of 5-13. The fi lter is protected by a polycarbonate glass panel. Persons allergic to these materials
may develop an allergic reaction.
Lifetime: The product does not have a specifi c lifetime. Pay attention to wear and damage of the helmet components. Replace in accord-
ance with the instructions in the manual.
Notifi ed body: DIN CERTCO Gesellschaft für Konformitätsbewertung mbH (0196), Alboinstraße 56, 12103 Berlin, Germany
Explanation of the markings: BY, YATO - manufacturer and importer identifi cation; YT-73925 - importer catalogue number; EN 379 - Eu-
ropean standard number for automatic welding fi lters, EN 175 - European standard number for eye and face protection equipment used for
welding; 4/5-9/9-13 BY 1/1/1/2 379 - marking of the welding fi lter with manual adjustment of the protection level: 4 - the number of the light
state; 5 - the number of the lightest dark state.; 13 - the darkest state No.; 1 - optical class; 1 - light dispersion class; 1 - light transmission
factor deviation class; 2 - light transmission factor angle correlation class; BY501i - welding fi lter model; BY 1 B / BY 1 F - welding helmet/
protective glass marking: 1 - optical class, B - protection against high speed and medium energy particles, F - protection against high speed
and low energy particles. CE - New Approach Directives EC conformity mark, "and" marking indicating that supplementary information
should be read.
Instructions for use: Before fi rst use, remove the protective fi lm from the protective glass panel. Leaving the fi lm on reduces the transpar-
ency and aff ects the operation of the welding fi lter. To remove the protective fi lm it may be necessary to disassembly the fi lter and/or the
protective glass panels described further in the manual. Replace worn and damaged components only with original parts. Do not modify the
helmet yourself. It is forbidden to use the helmet if any component shows signs of damage, is worn out or needs to be replaced.
Adjustment of the helmet support system: Put the helmet on your head, adjust the position of the upper headband strap, if necessary,
to make sure the helmet is at the right height. One part of the strap has a knob, which should be pressed into the hole in the other part of
the strap. This will prevent unintentional change in strap length. Press the knob at the back of the headband strap, and twist it to adjust the
length of the strap so that it is not too tight when it is in use, while staying in place when the head is moved. Use the side knobs to adjust
the force needed to lower and lift the helmet. By loosening the knobs it is possible to adjust the distance from the helmet to the face. The
regulation consists in loosening both knobs, then moving the helmet backwards or forwards and tightening the knobs. Make sure that both
knobs are set in the same position (II). Above the knobs, on the right side of the strap there are pins for adjusting the angle of the forehead
shield at maximum lowering and lifting. To adjust, move the cam that is between the strap and the helmet so that the opening in the cam is
placed on one of the pins (III).
The operation of the automatic welding fi lter: Set the operating mode switch to one of the positions. „GRIND" - deactivates the auto-dark-
ening function and the fi lter remains bright regardless of external conditions. „CUT" - allows you to set the welding fi lter's dark state in the
range of 5 - 8. „WELD" - allows you to set the welding fi lter's dark state in the range of 9 - 13. Selection of the fi lter's darkening level in
dark state is made by using the "SHADE" knob. Thanks to the sensors, the fi lter is automatically darkened to the set level when bright light
from the welding process is detected. When choosing the dark state you can refer to the table in the manual showing the recommended
protection levels for arc welding.
The fi lter has two additional adjustment knobs. The "DELAY" knob allows you to change the fi lter delay time, which is the time the fi lter will
respond to the change in light intensity. The adjustment is smooth, with the "MIN" position - meaning the least delay in darkening of the fi lter
and the "MAX" position - meaning the greatest delay in fi lter darkening. The adjustment of the knob between these settings allows you to
select the fi lter response time between the maximum and minimum value.
The "SENSITIVITY" knob allows you to adjust the sensitivity, i.e. the threshold for fi lter operation. The adjustment is smooth, with the "Hi"
position - meaning the highest sensitivity; the fi lter will react to a smaller change in the intensity of the light shining on the sensors, and the
"Lo" position - meaning the lowest sensitivity, the fi lter will react only to a greater change in the intensity of the light shining on the sensors
For most welding jobs it is recommended to set the knob in the middle of the range.
The "LOW BATTERY/ SŁABA BATERIA" control light allows you to check state of the batteries running the welding fi lter. If you press the "TEST"
button and it causes the control light to light up, replace the batteries as soon as possible. The welding fi lter needs power to function properly.
Replacement of the batteries: The batteries are located in the welding helmet shell. Remove the fi lter as described in the next section of
this manual, then remove the battery compartments and replace both batteries (IV). Always change batteries in pairs.
Replacement of the protective glasses: If scratches, cracks, clouding or other damage to the protective glasses are observed, they must
be replaced with new ones. In order to replace the glass panels, the fi lter should be removed from the helmet as well as from its mounting
frame. To remove the fi lter, move both locks inwards (V) and then remove the fi lter frame. Carefully pull out the upper and lower edges of
the frame and remove the fi lter from the frame. The front protective glass panel is mounted directly in the helmet (VI). The rear protective
glass panel is mounted in the helmet shell. Lift the glass panel in the middle of the edge at the notch in the shell and then pull it out of the
shell handles (VII). Lightly bend the new glass panel and then insert the side edges into the handles of the helmet shell (VIII). Caution! It is
forbidden to use the helmet without protective glass panels.
Replacement of the welding fi lter: Remove the fi lter and install a new one in its place. Make sure that new batteries are installed in the
new fi lter.
O R I G I N A L I N S T R U C T I O N S
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