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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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Autodark Welding Helmet Repair
The Harbor Freight autodarkening welding helmet with the solar cell actually has two coin cell batteries inside, and when they get weak, the autodarkening ceases to function Some times this happens in a little over a year. A fellow student in my evening welding class took his apart and documented the repair in the following web page: http://www.pskl.us/wp/?p=648 I've also printed this page as a pdf file and uploaded it to the metalworking dropbox since that's a longer term storage site and the instructions will be around two years from now when somebody needs them. RWL |
#2
Posted to rec.crafts.metalworking
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Autodark Welding Helmet Repair
GeoLane at PTD dot NET wrote:
The Harbor Freight autodarkening welding helmet with the solar cell actually has two coin cell batteries inside, and when they get weak, the autodarkening ceases to function Some times this happens in a little over a year. A fellow student in my evening welding class took his apart and documented the repair in the following web page: http://www.pskl.us/wp/?p=648 Very nice writeup! Thanks, R. --Winston |
#3
Posted to rec.crafts.metalworking
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Autodark Welding Helmet Repair
On 2011-09-27, GeoLane at PTD dot NET GeoLane wrote:
The Harbor Freight autodarkening welding helmet with the solar cell actually has two coin cell batteries inside, and when they get weak, the autodarkening ceases to function Some times this happens in a little over a year. A fellow student in my evening welding class took his apart and documented the repair in the following web page: http://www.pskl.us/wp/?p=648 I've also printed this page as a pdf file and uploaded it to the metalworking dropbox since that's a longer term storage site and the instructions will be around two years from now when somebody needs them. Downloaded the file and read it. The name it has in the dropbox, BTW, is: Harbor_Freight_Autodark_Welding_Helmet_repair.pdf to save some searching. Note that there are holders for coin cells which could have been soldered in there in place of the coin cells with the solder tails which you found there. This would allow future replacement of the coin cells without having extra wires and battery boxes inside the hood. Probably a 2032 cell to get the ones without the solder tails for this purpose. Thanks, DoN. -- Remove oil spill source from e-mail Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
#4
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Autodark Welding Helmet Repair
On 28 Sep 2011 04:33:56 GMT, "DoN. Nichols"
wrote: On 2011-09-27, GeoLane at PTD dot NET GeoLane wrote: The Harbor Freight autodarkening welding helmet with the solar cell actually has two coin cell batteries inside, and when they get weak, the autodarkening ceases to function Some times this happens in a little over a year. A fellow student in my evening welding class took his apart and documented the repair in the following web page: http://www.pskl.us/wp/?p=648 I've also printed this page as a pdf file and uploaded it to the metalworking dropbox since that's a longer term storage site and the instructions will be around two years from now when somebody needs them. Downloaded the file and read it. The name it has in the dropbox, BTW, is: Harbor_Freight_Autodark_Welding_Helmet_repair.pdf to save some searching. Excellent. Note that there are holders for coin cells which could have been soldered in there in place of the coin cells with the solder tails which you found there. This would allow future replacement of the coin cells without having extra wires and battery boxes inside the hood. Probably a 2032 cell to get the ones without the solder tails for this purpose. I didn't see how the cells were electrically oriented from the article. Are they 2 separate 3v circuits, in serial for 6v, or in parallel for a higher ampacity 3v circuit? -- Live in the sunshine, swim the sea, drink the wild air… -- Ralph Waldo Emerson |
#5
Posted to rec.crafts.metalworking
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Autodark Welding Helmet Repair
On Wed, 28 Sep 2011 06:23:29 -0700, Larry Jaques
wrote: On 28 Sep 2011 04:33:56 GMT, "DoN. Nichols" wrote: On 2011-09-27, GeoLane at PTD dot NET GeoLane wrote: The Harbor Freight autodarkening welding helmet with the solar cell actually has two coin cell batteries inside, and when they get weak, the autodarkening ceases to function Some times this happens in a little over a year. The name it has in the dropbox, BTW, is: Harbor_Freight_Autodark_Welding_Helmet_repair.pdf I didn't see how the cells were electrically oriented from the article. Are they 2 separate 3v circuits, in serial for 6v, or in parallel for a higher ampacity 3v circuit? There are two separate circuits. If the case were easier to open / could be opened and closed easily, just replacing the coin cells would be the easiest fix, but since the case wasn't meant to be opened, it's best to buy AAA battery holders and run wires through the case to the contacts. RWL |
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