Pianotech

  • 1.  Schaff alcohol lamp

    Registered Piano Technician
    Posted 05-21-2024 17:44
      |   view attached

    Hi everyone,

    Last year, I purchased a Schaff alcohol lamp, product 185. When I first tried it, it worked well and I used it on a home regulation.

    However, recently I can't get it to perform well. I use denatured fuel alcohol and there's plenty of wick left, but after I light it, it only produces a sad little flame, which quickly dies. I've tried fresh fuel--not sure what else I can do.

    Anyone have any experience with these lamps? What can I try? It comes with a cotton wick--is there a different/better type?

    thanks!



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    Scott Cole, RPT
    rvpianotuner.com
    Talent, OR
    (541-601-9033
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  • 2.  RE: Schaff alcohol lamp

    Registered Piano Technician
    Posted 05-21-2024 19:11
    I don't have any experience using an alcohol lamp, but in order for it to work properly, the entire wick needs to be soaked in alcohol. I would suggest you tip the lamp so that the alcohol can drip through the spout with the wick can get soaked. 

    Wim





  • 3.  RE: Schaff alcohol lamp

    Registered Piano Technician
    Posted 05-21-2024 22:03

    I have the "Aladdins lamp" type with about a 4-5" long tube out the side for the wick. I have always used nearly straight methanol rather than DA (which can often contain water right out of the can). I buy "HEET" at the auto parts store which AFAIK is at least 95% methanol. You want a blue flame rather than a yellow flame. Methanol will give you that. ("Blue...no residue) 

    I fill up the reservoir with juice and blow into the fill hole until fuel drips out the end of the wick. That way I know all of it is saturated. Then I light it and let it run for a while till it calms down and then go to work. (It tends to sputter a little and drip fire at first, but then it seems to gain it's composure and a regular little flame just keeps on burning gently). Been doing it this way for many years. 

    However I recently replaced my butane mini blowtorch. It unfortunately has a flame that is uncomfortablely large and hot for burning shanks. It works, but I have to be careful and quick to avoid collateral damage (yes...stuff happens fast). I found in the accessories that it can be converted to a flame driven hot air "pencil". Upon assembling it and trying it out I have now decided that THAT is what I will carry around in my tool bag. The shop though retains the alcohol lamp (for the wood shanks...not CF).

    Hope something here helps,

    Peter Grey Piano Doctor 



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    Peter Grey
    Stratham NH
    (603) 686-2395
    pianodoctor57@gmail.com
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  • 4.  RE: Schaff alcohol lamp

    Registered Piano Technician
    Posted 05-22-2024 01:59

    Scott,

    As others have said, you might need to tip the lamp over to allow more alcohol to run down to the tip.

    These lamps are also intended to run warm.  Try warming/heating the shaft and tip to partially vaporize the alcohol.

    Use caution, you don't want a burning alcohol spray over an action.

    Keep a fire extinguisher handy.



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    Blaine Hebert RPT
    Duarte CA
    (626) 390-0512
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  • 5.  RE: Schaff alcohol lamp

    Registered Piano Technician
    Posted 05-22-2024 06:35
    I have 3 alcohol lamps that haven't seen the light of day since I bought a Weller heat gun (which you will need anyway for WNG composite shanks). They're expensive, but superior in every way.





  • 6.  RE: Schaff alcohol lamp

    Registered Piano Technician
    Posted 05-22-2024 09:01

    Mark,

    You're so "modern"...don't you like that 19th century feeling of gently coaxing wood into position with fire? Not to mention the occasional drips of burning fuel that.you need to keep an eye out for...it's so "heartwarming"...like sitting in front of the fireplace on a cold winter's night πŸŒ™ πŸ˜€ 

    Peter Grey Piano Doctor 



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    Peter Grey
    Stratham NH
    (603) 686-2395
    pianodoctor57@gmail.com
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  • 7.  RE: Schaff alcohol lamp

    Registered Piano Technician
    Posted 05-22-2024 10:54
    Thanks for responding everyone. Yes, my instinct was indeed to tip the lamp so the wick would soak up alcohol. And I do have a Weller heat gun.
    I may try a different fuel.

    By the way, someone mentioned having a fire extinguisher. I wonder how many tech have one handy in their shop? It’ll make a good Journal tip.




  • 8.  RE: Schaff alcohol lamp

    Registered Piano Technician
    Posted 05-22-2024 11:12
    Regarding a fire extinguisher. When I had my store in St. Louis, in order to get a license for the store, I was required to have several, and have them inspected every year. 

    Even when I had my shop next to my house, although it was not a requirement, I still had several extinguishers0 in strategic places and I had them inspected once a year. It's an expense that is well worth it, kind of like life insurance. So far, I have had to us it, either. lol

    Wim





  • 9.  RE: Schaff alcohol lamp

    Registered Piano Technician
    Posted 05-22-2024 12:12

    Thanks for the reminder, Wim! I just ordered 2 off Amazon - they are surprisinly inexpensive.  First Alert Home1-2, Standard Home Fire Extinguisher, Red 2pk, White, 2PACK - Amazon.com

    One thing I worry about is solvents that produce heat when thrown in a garbage can. A refinishing shop down the road had a major fire a while back from oily rags spontaneously combusting. Do you store oily rags correctly? Fire Safety Guidance - Harrington Group (hgi-fire.com)



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    Ryan Sowers RPT
    Olympia WA
    (360) 480-5648
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  • 10.  RE: Schaff alcohol lamp

    Registered Piano Technician
    Posted 05-22-2024 10:50

    I have one of the lamps you show in the picture. I've had some success with it. I did have a little trouble with leakage. Thin CA around where the tube goes into the base cured that. I'm sure they must be made in China. I bought mine on EBay. When it's working well it's pretty convenient because it sits nicely on a flat surface. I'm happy to know about using Methanol. I've used DA and maybe that's why it's performance is inconsistent. I even carried it in my kit for a while, but I find barbecue lighters ideal in the field. 



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    Ryan Sowers RPT
    Olympia WA
    (360) 480-5648
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