Instruction Manual & Parts Catalog Auto Darkening Welding Helmet Model 20702 Read and understand this entire manual before operating or servicing this product. SAVE THIS MANUAL Copyrightc 2011 by ArcPro. All rights reserved. No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of ArcPro. Due to continuing improvements, actual product may differ slightly from the product described herein.
IMPORTANT SAFETY INFORMATION This is a SAFETY ALERT symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. DANGER DANGER indicates a hazardous situation which, if not avoided, will result in death or injury. WARNING WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury. CAUTION CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate injury. NOTICE NOTICE indicates important information which, if not followed, may cause damage to equipment. SAVE THIS MANUAL Keep this manual for the warnings and precautions, the operating instructions and the maintenance tips that are included in it. Write the product s model number and purchase date on the cover page of this manual. Keep your purchase receipt in a safe location. UNPACKING The shipment should be thoroughly inspected as soon as it is received. The signed bill of lading is acknowledgement by the carrier of receipt in good condition or shipment covered by our invoice. For your own protection, if any of the goods called for on the bill of lading are shorted or damaged, do not accept them until the carrier makes a notation on the freight bill of the shorted or damaged goods. Notify ArcPro immediately if any hidden loss or damage is discovered after receipt. INSTRUCTION MANUAL Definition of Symbols WARNING concerning Risk of Eye Injury. Wear ANSI approved impact safety goggles with side shields, under the Welding Helmet. WARNING concerning Risk of Hearing Loss. Wear hearing protection. WARNING concerning Risk of Respiratory Injury. Wear NIOSH approved dust mask/respirator. WARNING concerning Risk of Inhalation of welding toxic fumes. IMPORTANT SAFETY INSTRUCTIONS Read and understand all safety warnings and instructions. Failure to follow the warnings and instructions may result in serious injury or death. Save all warnings and instructions for future reference. 2. Personal and Work Area Safety A. Always wear ANSI approved impact safety goggles with side shields, under the Welding Helmet. B. Always wear hearing protectection when working in noisy environments. Prolonged exposure to high intensity noise can cause hearing loss. C. Use safety equipment. Safety shoes, welding helmet, work gloves and dust mask/resperator must be used for applicable conditions. Model 20702 Page 2
Personal and Work Area Safety (continued) D. Dress appropriately. Never wear loose fitting clothing or jewelry when working. Contain long hair, and keep hair, clothing and gloves away from moving parts. Wear protective gear such as a leather welding apron, welding sleeves, pants without cuffs and work boots. E. Use common sense when working. Stay alert and concentrate when using this product. Never work while under the influence of alcohol, drugs or medications. F. Never use Welding Helmet in rainy, wet or damp conditions. G. Keep proper footing and good balance at all times while working. H. Never use this product in explosive atmospheres. Do not use in presence of flammable gases, liquids or dust. Sparks could result in ignition of fumes or dust. secondary protection from optical radiation and impact. Always wear primary protection such as ANSI approved safety goggles with side shields. This welding helmet will not protect against severe impact hazards. This welding helmet will not protect against corrosive liquids or explosive objects. E. Only use the Welding Helmet within the operating temperature range specified in the Specifications section of this manual. 4. Specific Safety Instructions A. The warnings and precautions reviewed in this manual cannot cover all possible conditions and situations that may occur. The product s user must understand that common sense and caution are factors that cannot be built into this product, but must be supplied by the user. B. WARNING 3. Product Usage. A. Before each use, check for broken parts and any condition that may affect the operation of the Welding Helmet. Do not use if the lens or helmet are cracked. The product must be serviced by a qualified technician if any problem is noted. B. Always maintain the product properly. A well maintained product will perform better. C. This Welding Helmet is designed to provide protection for ARC and MIG welding. The Welding Helmet is not appropriate for use when TIG welding, plasma cutting, laser welding, performing Oxyacetylene welding/cutting, or for overhead welding. D. ANSI (American National Standards Institute) defines all welding helmets as INHALATION HAZARD: Welding and Plasma Cutting Produce TOXIC FUMES Exposure to welding or cutting exhaust fumes can increase the risk of developing certain cancers, such as cancer of the larynx and lung cancer. Also, some diseases that may be linked to exposure to welding or plasma cutting exhaust fumes are: - Early onset of Parkinson s Disease -Heart Disease -Ulcers -Damage to the reproductive organs -Inflammation of the small intestine or stomach -Kidney damage Model 20702 Page 3
Specific Safety Instructions (continued) -Respiratory diseases such as emphysema, bronchitis, or pneumonia Use natural or forced air ventilation and wear a respirator approved by NIOSH to protect against the fumes produced to reduce the risk of developing these illnesses. C. If the Auto Darkening Welding Helmet does not darken upon striking an arc, immediately stop welding. The helmet should be checked by a qualified service technician. In addition to offering protection while welding, the helmet has a Grinding mode where the filter changes to a shade DIN 4. This mode is used when grinding for pre-weld preparation and post-weld clean up activities. Steps needed to get the the Welding Helmet ready for use: 1. Remove protective film from each side of the filter s lens (both outside frame and inside the helmet). D. Never place the Auto Darkening filter on a hot surface. Never open or attempt to modify the Auto Darkening filter. 2. Make sure that the filter s frame is solidly secured in place. Check the outer lens to make sure that it is clean and not scratched. WARNING E. Failure to comply with the warnings already stated could result in blindness, and/or severe personal injury. 3. Adjust the Headband to meet your individual requirements. SAVE THESE WARNINGS USING THE AUTO DARKENING WELDING HELMET This Auto Darkening Welding Helmet is designed to be used for ARC and MIG welding. The helmet filter automatically changes from a light state (shade 4) to a dark state (shade 9 to 13) when an arc is struck. The helmet filter returns to the light state (shade 4) when the welding is completed. Arc rays generated by welding produce powerful visible and invisible (Ultraviolet and Infrared) rays that can damage eyes and skin. When welding or when in close proximity to a welding operation, always wear a welding helmet fitted with the proper shade to protect yourself. Underneath the helmet, always wear ANSI approved safety goggles with side shields. -Use the ratcheting knob on the headband to adjust width. -Loosen or tighten the top strap to adjust headband height. Make sure that the Helmet fits firmly on your head. -With the headband on your head, lower the Welding Helmet over your face. Lock in the proper Helmet position by using the Adjustment Knobs on either side of the Helmet (see illustration and photo below). Make sure that the front lens frame is aligned with your eyes. 10 to 12 --- Adjustment Knob Model 20702 Page 4
Selecting Shade Number Select the protective shade number needed for your particular welding application (see chart on page 7). Use the Shade Control Knob on the side of Welding Helmet to dial in the shade number needed (from 9 to 13). The arrow on the knob indicates the shade setting. Shade Control Knob If more than one shade is recommended for your job, always try the darkest shade setting first. WARNING Always test the auto darkening lens before welding. With the helmet on your head and in position over your face, strike a brief arc while keeping your eyes and face slightly turned away to one side. The lens should darken evenly even though it is not directly facing the arc. If this is not the case, do not use the Welding Helmet and have it serviced by a qualified service technician. Low / High Sensitivity Grinding / Welding Mode Welding Mode / Grinding Mode As seen in the above photo, on the inside of the Helmet is a switch to designate whether the Helmet is in Welding mode or Grinding mode. Make sure the switch is to the right when welding and to the left when grinding. Solar Cells / Batteries The Welding Helmet uses solar cells for power supply, backed up by a built-in battery. The battery is non-replacable and designed to last for many years. Lens Sensitivity Control This control on the inside of the Helmet allows the lens to be more responsive to various light levels in different welding applications. See photo upper right. The LOW position is best for higher amperage welding and for welding in bright light conditions. The HIGH position is designed for low amperage welding and when welding in lower light conditions. Model 20702 Page 5
Cartridge Specifications Power Source Solar Powered Cells with non-replacable back up battery Power ON/OFF Fully Automatic Lens Type ANSI Z87.1-2010 approved Viewing Field 3.86 x 1.61 Cartridge Size 4.33 x 3.54 x 0.35 Light Shade State Shade DIN 4 Darkened Shade State Shade DIN 9 to DIN 13 Variable UV/IR Protection* Permanent Shade DIN 16 Sensors Two Grinding Shade State Shade DIN 4 Sensitivity Control High/Low Switch Reaction Time 1/10,000 second Operational Temperature 23 degrees F to 131 degrees F Storage Temperature -4 degrees F to 158 degrees F *UV/IR auto-darkening filters provide full protection to eyes/face during the welding procedure, even when in clear state (UV/IR protection is shade DIN 16 all the time). Maintaining the Welding Helmet 1. Clean the Front and Inside Cover Lens with a dry lint-free cloth or tissue. Never immerse the Cover Lens in water and do not use solvents or abrasive products in the cleaning process. 2. Keep the Welding Helmet clean by using a mild soap and damp cloth. After cleaning, dry the helmet with a clean cloth. 3. Replace the Front Cover Lens when it becomes cracked, scratched or damaged in any other way. To replace the Lens: Lift up on tab at bottom of Frame and pull out the Lens. Remove protective film on the new Lens. Put the new Lens into place and snap Front Frame to secure Lens into position. 4. The Cartridge is not replaceable. Do not attempt to open or remove this Cartridge from the Helmet. Troubleshooting 1. Unclear vision. To correct, clean Front and Inside Cover Lens and clean Cartridge. Made sure shade number selected is correct for the application. Made sure surrounding light in the workplace is adequate. 2. Inconsistant Darkening. Headband may need adjusting. Made sure Headband positions Lens so that it is equal distance from left and right eye. 3. Cartridge Does Not Darken. If the Auto- Darkening Cartridge does not darken, or has a fluttering image, the front Cover Lens should be cleaned along with the sensors in the Cartridge (clean surface of sensors). Use a soft clean cloth to clean. This problem could also be caused by too low of a weld current. Correct by switching the Lens Sensitivity Control on the inside of Helmet to LOW. 4. Too Slow Response Time. Never use Welding Helmet in temperatures below 23 degrees Fahrenheit. When the Welding Helmet is stored in very cold temperatures, warm the Helmet to ambiant temperature before using. Limited Warranty ArcPro warrants to the original retail purchaser that the product is free of defects in material and workmanship at the time of shipment. This Welding Helmet is warranteed for 90 days from the date of purchase. This warranty is expressly in lieu of all other warranties, express or implied. Proof of purchase is required for warranty transactions; a copy of the original invoice or sales receipt is required. Model 20702 Page 6
Recommended Shade Settings Welding Application Arc Current in Amperes Protective Shade Number MIG Less than 100 10 100-175 11 175-300 12 300-500 13 Stick Electrodes Less than 40 9 40-80 10 80-175 11 175-300 12 300-500 13 Plasma Arc Welding Less than 50 11 50-200 12 200-400 13 Flux Core Less than 175 10 175-225 11 225-275 12 275-350 13 Parts List and Diagram 2 1 Helmet 2. Adjustable Headband 3. Front Velcro Cover 4. Inside Lens Cover 5. Cartridge 6. Front Lens Cover 7. Retaining Frame 3 1 4 5 7 6 Note: The Parts List and Assembly Diagram is provided as a reference tool only. Some parts are listed and shown for illustration purposes only, and are not available as replacement parts. All repairs to this tool (including replacing parts) should only be done by a qualified service technician. Model 20702 Page 7 Model 20702 Page 7