Westward 4UZY9 User manual

Auto Darkening Welding Helmet
Model: 4UZY9
TEC497
Printed in China
09/09

Auto-Darkening welding helmets are designed to protect the eyes and face from sparks,
spatter and harmful radiation under normal welding conditions. Auto-Darkening filter
models automatically change from a light state to a dark state when an arc is struck, and it
returns to the light state when welding stops.
Auto-Darkening welding helmets come ready for use. Follow all “safety” warnings, make
all helmet fit adjustments and select the correct shade number for your welding application
prior to use.
• ThisAuto-Darkening welding helmet is not suitable for laser welding and
oxyacetylene welding / cutting processes.
• Never place this helmet and Auto-Darkening filter on a hot surface.
• Never open or tamper with the Auto-Darkening filter.
• ThisAuto-Darkening welding helmet will not protect against severe
impact hazards, including grinding discs.
• This helmet will not protect against explosive devices or corrosive
liquids.
• Don´t make any modifications to either the filter or helmet, unless
specified in this manual. Do not use replacement parts other than those
specified in this manual.Unauthorized modifications and replacement
parts will void the warranty and expose the operator to the risk of
personal injury.
• Should this helmet not darken upon striking an arc, stop welding
immediately.
• Don´t immerse the filter in water.
• Don´t use any solvents on the filter screen or helmet components.
• Use only at temperatures: 14°F ~ 131°F (-10º C ~ +55º C)
• Storing temperature: - 4°F ~ 158°F (-20º C ~ +70º C)
• Protect filter from coming in contact with liquid and dirt.
• Clean the filter surface regularly; never don´t use strong cleaning solutions.
Always keep the sensors and solar cells clean using a clean lint-free
tissue.
• Regularly replace the cracked / scratched / pitted front cover lens.
• Never try to open the filter cartridge.
• The materials which may come into contact with the wearer’s skin, can
cause allergic reactions in some circumstances.

Before First Use
1) The Auto-Darkening Welding Helmet needs to be charged prior to use and after
extended storage. Leave the solar panel on the helmet facing the sun or bulb light
for at least 1 hours before first use.
2) Remove the protective shipping film from both sides of the front lens (if not
already done).
3) The helmet comes assembled, but before it can be used, the headgear must be
adjusted for proper fit as well as delay time, sensitivity and shade level.
ADJUSTING THE HELMET FIT
The overall circumference of the headband can be made larger or smaller by pushing
in and rotating the knob on the back of the headband. (See adjustment “Y” in Fig.1).
This can be done while wearing the helmet and allows just the right tension to be set
to keep the helmet firmly on the head without it being too tight.
If the headband is riding too high or too low on your head, adjust the strap which
passes over the top of your head. To do this, release the end of the band by pushing
the locking pin out of the hole in the band. Slide the two portions of the band to a
greater or lesser width as required and push the locking pin through the nearest hole.
(See adjustment “W” in Fig. 1).
Test the fit of the headband by lifting up and closing down the helmet a few times while
wearing it. If the headband moves while tilting, re-adjust it until it is stable.
ADJUSTING THE DISTANCE BETWEEN THE HELMET AND THE FACE
Step 1.Undo the block nut (See “T” in Fig. 1) to adjust the distance
between the helmet and your face in the down position.
Step 2. Loosen the block nut on either side of the helmet and slide
it nearer or further from your face. (See adjustment “Z” in
Fig.1). It is important that your eyes are each the same
distance from the lens. Otherwise the darkening effect may appear uneven.
Step 3: Re-tighten the block nut when adjustment is satisfactory.
WARNING! Befor
e using the helmet for welding, ensure that you have read and understood the safety instructions.
INSTRUCTIONS FOR USE

ADJUSTING VIEW ANGLE
There are 5 holes on both side of the helmet (see Fig.2). You can change view angle
position by moving the adjustable limitation washer into different holes.
NOTE:
SMAW – Shielded Metal Arc Welding MIG (Heavy) – MIG on Heavy Metals
SAW – Shielded Semi-Automatic Arc Welding TIG, GTAW – Gas Tungsten Arc Welding
PAW – Plasma Arc Welding MIG (Light) – MIG on Light Alloys
PAC – Plasma Arc Cutting MAG/CO² - Metal Active Gas
TROUBLE SHOOTING
Irregular Darkening or Dimming
Headband has been set unevenly on the two sides of the helmet resulting in an uneven
distance from the eyes to the filter lens. (Adjust the headband to reduce the difference in
distances to the filter).
Auto-Darkening filter does not darken or flickers
Helmet was not properly charged before first use. (See “Before First Use” section
on page 2 of this manual.)
Front cover lens is dirty or damaged. (Change the cover lens).
Sensors are dirty. (Clean the sensors surface).
Slow response when darkening
Operating temperature is too low.(Do not use at temperatures below -10ºC or 14ºF)
MAINTENANCE

Poor vision
Front/inside cover lens and/or the filter are dirty. (Clean or change lens).
There is insufficient ambient light.
Welding helmet slips
Headband is not properly adjusted. (Readjust the headband).
REPLACING FRONT COVER LENS.
Replace the front cover lens if it is damaged (cracked or pitted). Place your finger or
thumb into the recess at the bottom edge of the window and flex the window upwards until
it releases from one edge. (See Fig. 4).
REPLACING THE INSIDE COVER LENS.
Replace the inner cover lens if it is damaged (cracked or pitted). Place your finger or
thumb into the recess at the upper edge of the window and flex the window upwards until
it releases from one edge.
CHANGING THE SHADE CARTRIDGE. Loosen the holding spring (see D in Fig.5a),
move out the shade cartridge and put new shade cartridge into the filter frame; fix the
cartridge by using the spring (see E in Fig.5a).
FITTING NEW CARTRIDGE
Take the new shade cartridge and pass the potentiometer cable under the wire loop
before dropping the cartridge into its retaining frame inside the helmet. Hinge down the
wire loop clip and ensure that the front edge of the loop is properly retained under the
retaining lugs as shown in Fig. 5b. Fasten the potentiometer to the inside of the helmet
with the shaft protruding through the hole. Push the shade control knob onto the shaft.
CLEANING
Clean helmet by wiping with a soft cloth. Clean cartridge surfaces regularly. Do not use
strong cleaning solutions. Clean sensors and solar cells with methylated spirit (ethyl
alcohol 95% and methyl alcohol 5%) and a clean cloth and wipe dry with a lint-free cloth.
.
The user must stop using the auto-darkening welding helmet immediately if
the above
-
mentioned problems cannot be cor
rected. Contact the dealer.
WARNING
MAINTENANCE

Welding Helmet Service Kit
For Repair Parts, call 1-800-323-0620
24 hours a day – 365 days a year
Please provide the following:
- Model Number
- Serial Number (if any)
- Part description and number as shown on parts list
Figure – Repair Parts Illustration for Model(s) 4UZY9
Repair Parts List
1 Shell (Welding mask) TTIXSG 1
2 Head GearAssembly TTADFHGG 1
3 Front Cover Lens TTADF2X4FG 1
4 Auto-Darkening Filter TTADF100FLG 1
3 YEAR WARRANTY
Should this welding helmet ever fail to perform satisfactorily due to a defect or poor
workmanship within 3 years from the purchasing date, return it to the place of purchase
and it will be replaced, free of charge. Incidental or consequential damages are excluded
from this warranty.
Reference
Number Description Part Number Qty.

TECHNICAL SPECIFICATIONS

Manufactured for Grainger International, Inc.
100 Grainger Pkwy., Lake Forest IL 60045 U.S.A.