Use of unauthorized parts or failure to follow maintenance instructions may create a risk of electric shock or injury. Ground this product. Only a qualified electrician should install the Power Cord Plug. Never remove the grounding prong or modify the Power Cord Plug in any way. Do not use adapter plugs with this product. To comply with the National Electric Code, and to provide additional protection from the risk of electrical shock, this product should only be connected to a volt, 3-hole outlet that is properly grounded.
Maintain labels and nameplates on theWelder. These carry important information. Avoid unintentional starting. Make sure you are prepared to begin work before turning on the Welder. Do not force the Welder. This tool will do the work better and safer at the speed and capacity for which it was designed.
Never leave the Welder unattended when it is plugged into an electrical outlet. Industrial applications must follow OSHA guidelines. Never stand on the Welder. Serious injury could result if the Welder is tipped or if hot surfaces are accidently contacted.
Maintain a safe working environment. Keep the work area well lit. Make sure there is adequate surrounding workspace. Always keep the work area free of obstructions, grease, oil, trash, and other debris. Do not use a power tool in areas near flammable chemicals, dusts, and vapors.
Do not use this product in a damp or wet location. Prevent eye injury and burns. Wearing and using ANSI-approved personal. Do not wear pants with cuffs, shirts with open pockets, or any clothing that can catch and hold molten metal or sparks.
Wear dry, insulating gloves and protective clothing. Use aprons, cape, sleeves, shoulder covers, and bibs designed and approved for welding and cutting procedures. Prevent accidental fires. Remove any combustible material from the work area. If relocation is not possible, protect the combustibles with a cover made of fire resistant material. Use a fire resistant material to cover or block all open doorways, windows, cracks, and other openings. Protect combustible walls, ceilings, floors, etc.
If relocation of combustibles is not possible, designate someone to serve as a fire watch, equipped with a fire extinguisher, during the cutting process and for at least one half hour after the cutting is completed. Keep a fire extinguisher nearby and know how to use it. Be aware that easily-visible smoke or flame may not be present for some time after the fire has started.
Do not weld or cut in atmospheres containing dangerously reactive or flammable gases, vapors, liquids, and dust. Provide adequate ventilation in work areas to prevent accumulation of flammable gases, vapors, and dust.
Do not apply heat to a container that has held an unknown substance or a combustible material whose contents, when heated, can produce flammable or explosive vapors.
Clean and purge containers before applying heat. Vent closed containers, including castings, before preheating, welding, or cutting. Avoid overexposure to fumes and gases. Always keep your head out of the fumes. Do not breathe the fumes. Use enough ventilation or exhaust, or both, to keep fumes and gases from your breathing zone and general area. Use mechanical ventilation to improve air quality. If engineering controls are not feasible, use an approved respirator.
Exposure to welding gasses 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 gasses or fumes are:. Do not touch live electrical parts.
Wear dry, insulating gloves. Do not touch electrode or conductor tong with bare hand. Do not wear wet or damaged gloves. Protect yourself from electric shock. Do not use outdoors. Insulate yourself from the workpiece and ground. It worked great for the first 2 years and then started producing weak welds. So weak that I started using a wire feed welder to strengthen the welds.
I have stripped it down, cleaned everything, tightened all the screws, replaced the tongs and nothing has improved the quality of the welds. I think I will throw it away and use another welding method. The welds were beautiful and strong when it worked. I think the moral of the story is emerging: the HF spot welders don't hold up.
I have a Miller spot welder made on or before which still works perfectly. Keep the arms bright and shiny with steel wool, and pay attention to your tips. If the tips get deformed or mushroomed, they don't work nearly as well.
You guys are right, I know it's only a Harbor Freight unit. I also have read on this forum that several people have said the HF unit is a copy of the Miller, just cheapened up.
My hope was that some one would say "Yes that has happened to me. Replace the I'm afraid I'm not as smart as most of you guys, but that's why I'm here. To learn. I don't know how to test voltage and properly figure this out. As discribed earlier.
I just don't understand that technical electrical stuff. Hate to give up on the machine, it was working fine. I gotta' think it's just something dumb, something simple that needs replaced or cleaned.
To me at this time though, I have NOT had to take one apart, since the only one I have worked with works fine. But it isn't hard to figure that a very small amount of resistance is sufficient to ruin the working. Think about it The unit is rated at A max, which is likely with no to-be-welded metal in-circuit.
And VA manual states If unreadable or missing, contact Harbor Freight Tools for a replacement. Unplug before maintenance. Ltd is a popular spot welder for home use. It is sold under a number of other names in different countries; Harbor Freight is the brand name in the US. The picture shows one sold by a Swedish importer.
Carbon-center electrodes provide welds each. The spot welder has 6 in. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies, we will not know when you have visited our site, and will not be able to provide you the best experience possible. Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.
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