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Glue Gun Repaired

By Jestine Yong on January 2, 2015

I was making some low voltage polarity checkers to give away as Christmas presents when my glue gun started acting up and not giving out very much glue. I made the mistake of not letting the glue gun heat up for 10 minutes before using it. Instead I started using it after only 5 minutes.

The mail didn’t deliver my test leads in time, so I had to wait until after Christmas to make them. I’ve never worked on a glue gun before. After letting it cool down, I opened it up.

This polarity checker has a 3watt 2.2K resistor, so it will handle up to 48 volts easily. These are some pretty good 36 inch long test leads that I got from www.allelectronics.com for only $2.50 a set. I cut the banana plugs from the ends of them.

I took it apart and removed the swollen glue stick. Next time I need to let it warm up for at least 10 minutes like I’m supposed to. Pulling on the trigger before the glue gun was heated up enough made the glue stick swell up inside and not work properly.

There isn’t a lot to a glue gun but I thought that maybe some of you would like to see the pictures of the insides of one in case you have not taken one apart.

Robert Calk Jr. is an electronics hobbyist from the USA that loves learning electronics and device repair.

Happy New Year!

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Glue Gun Repair

6 Comments

beh

January 2, 2015 at 11:29 pm

HAPPY NEW YEAR ROBERT. and thank s for sharing your explore inside the machines with us.

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- Robert
  
  January 3, 2015 at 11:09 am
  
  Thanks Beh. Happy New Year to you also!
  
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Arnab Kumar Chatterjee

January 3, 2015 at 12:02 am

A VERY VERY HAPPY NEW YEAR TO YOU JESTINEYONG.

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- admin
  
  January 3, 2015 at 9:30 am
  
  HI Arnab,
  
  Thanks and Happy New Year to you too.
  
  Jestine
  
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Yogesh Panchal

January 6, 2015 at 3:33 pm

Sir,
I have got one for me last week ,it is taking 10 to 15 minutes for proper heating and after words it works fine . glue stick is bulged because you have pressed triger befor gun gets proper heating. thanks for sharing.

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- Robert
  
  January 6, 2015 at 9:08 pm
  
  You are welcome Yogesh. Yes, I was pulling on the trigger before it was heated up properly.
  
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