JOBSMART 1875790 Welding Helmet Owner’s Manual

JOBSMART 1875790 Welding Helmet Owner’s Manual

SAFETY WARNINGS – READ BEFORE USING

WARNING

Read & Understand All Instructions Before Using

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
automatically changes from a light state to a dark state when an arc is struck and it
returns to the light state when welding stops.

The Auto-Darkening welding helmet comes assembled. But before it can be used, it must be adjusted to fit the user properly. Check battery surfaces and contacts and clean it if necessary. Verify if the battery is in good condition and installed properly. Set up for delay time, sensitivity and shade number for your application.

The helmet should be stored in dry, cool and dark area and remove the battery, when not using it for a long time.

WARNING

• This Auto-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.

• This Auto-Darkening welding helmet will not protect against severe impact hazards.

• This helmet will not protect against explosive devices or corrosive liquids.

• Do not 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 and
  contact your supervisor or your dealer.

• Do not immerse the filter in water.

• Do not use any solvents on the filter screen or helmet components.

• Use only at temperatures: -10°C ~ +55°C (14°F ~ 131°F).

• Storing temperature: -20°C ~ +70°C (- 4°F ~ 158°F). The helmet should be stored in dry cool and dark area and remove the battery, when not using it for a long time.

• Protect filter from contact with liquid and dirt.

• Clean the filter surface regularly; do not 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.

• The materials which may come into contact with the wearer’s skin can cause allergic reactions in some circumstances.

WARNING

Severe personal injury could occur if the user fails to follow the above mentioned warnings, and/or fails to follow the operating instructions

COMMON PROBLEMS AND REMEDIES

Irregular Darkening Dimming
Headgear has been set unevenly and there is an uneven distance from the eyes to the
filter lens (Reset the headgear to reduce the difference to the filter).

Auto-Darkening filter does not darken or flickers

1. Front cover lens is soiled or damaged (Change the cover lens).
2. Sensors are soiled (Clean the sensors surface).
3. Welding current is too low (Adjust the sensitivity level to higher).
4. Check battery and verify that it’s in good condition and installed properly. Also, check battery surfaces and contacts and clean if necessary. Please refer to the “POWER” on page 2.

Slow response
Operating temperature is too low (Do not use at temperatures below -10°C or 14°F).

Poor vision

1. Front / inside cover lens and / or the filter is soiled (Change lens).
2. There is insufficient ambient light.
3. Shade number is incorrectly set (Reset the shade number).
4. Check if removing the film on the front cover lens.

Welding helmet slips
Headgear is not properly adjusted (Readjust the headgear)

INSTRUCTIONS FOR USE

WARNING! Before using the helmet for welding, ensure that you have read and understood the safety instructions.

BATTERY INSTALLATION
Install battery into helmet properly, according to positive and negative terminal marking on battery jar (See fig.1).

POWER

This ADF cartridge is powered by solar cell and 1 AAA Alkaline battery. Replace battery
when LOW BATTERY light is lit ( See fig.1)

SELECTING SHADE LEVEL
Select the shade level you require according to the welding process you will use by
referring to the “Shade Guide Table” below for settings. Turn the shade control knob on the side of the helmet to the shade number required.

SENSITIVITY

The sensitivity can be set to “HI” (high) or “LO” (low) by using the adjustment knob on the back of the shade cartridge. The “Mid-High” setting is the normal setting for everyday use. The maximum sensitivity level is appropriate for low welding current work, TIG, or special applications. Where the operation of the helmet is disturbed by excess ambient light, or another welding machine close by, use the “LO” setting. ( See fig.2a ). As a simple rule for optimum performance, it is recommended to set sensitivity to the maximum at the beginning and then gradually reduce it, until the filter reacts only to the welding light flash and without annoying spurious triggering due to ambient light conditions (direct sun, intensive artificial light, neighbouring welder’s arcs etc.).

SELECTING DELAY TIME
When welding ceases, the viewing window automatically changes from dark back to light but with a pre-set delay to compensate for any bright afterglow on the workpiece. The delay time / response can be set to “S” (short: 0.1 sec.) or “L” (long: 1.0 sec.). As you require using the adjustment knob on the back of the shade cartridge. (See fig.2b ). It is recommended to use a shorter delay with spot welding applications and a longer delay with applications using higher currents. Longer delays can also be used for lower current TIG welding, and TIG / MIG / MAG pulse.

SELECTING THE GRIND OPTION
When the shade knob is turned to the “Grind” position, the shade function is turned off allowing a clear view to grind a weld with the helmet providing face protection. Before restarting welding work, ensure that the shade function is turned back on before welding again (See fig.3).

ADJUSTING THE FIT OF THE HELMET
The overall circumference of the headgear can be made larger or smaller by rotating the knob on the back of the headgear (See adjustment “Y” in fig.4). This can be done whilst 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 headgear 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.4).
• Test the fit of the headgear by lifting up and closing down the helmet a few times while wearing it. If the headgear 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.4) 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.4). 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 complete.

ADJUSTING VIEW ANGLE POSITION
TILT: Tilt adjustment is located on right side of helmet. Loosen the right headgear tension knob and push the top end of the adjustment lever outward until the lever’s Stop Tab clears the notches. Then rotate the lever forward or back to the desired tilt position. The Stop will automatically engage again when released locking the helmet into position **(See fig.5).

**

SHADE GUIDE TABLE

NOTE:

• SMAW – Shielded Metal Arc Welding

• MIG (Heavy) – MIG on Heavy Metals
  PAW – Plasma Arc Welding

• SAW – Shielded Semi-Automatic Arc Welding

• TIG, GTAW – Gas Tungsten Arc Welding

• MIG (Light) – MIG on Light Alloys

• PAC – Plasma Arc Cutting

• MAG/CO2 – Metal Active Gas

MAINTENANCE

• REPLACING FRONT COVER LENS
  To replace the front cover lens remove lens cassette by unlocking the holder lock below the cartridge ( fig.6 ), lift up the cartridge to remove / replace the front cover lens.
  

• REPLACING INSIDE COVER LENS
  Replace the inside cover 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 AUTO DARKENING FILTER
  Remove ADF holder assembly from helmet shell. See fig.6 for removal. Flex top end of the ADF holder to allow for ADF cartridge to be removed from frame. Install new ADF cartridge into frame per fig.7 below. Make sure that the ADF cartridge is inserted in ADF holder correctly as shown. Install ADF holder assembly into helmet shell.
  

• CLEANING
  Clean helmet by wiping with a soft cloth. Clean the auto darkening filter surfaces regularly. Do not use strong cleaning solutions. Clean sensors and solar cells with methylated spirit and a clean cloth and wipe dry with a lint- free cloth.

TECHNICAL SPECIFICATIONS

PARTS LIST & ASSEMBLY

Part List

**Part List of H***

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