A Turkish Welding Machine With Very Weak Welding Repaired
A guy that owns an electrical supply shop brought this machine for repair. The welding on this machine was very weak and needed some attention.
Another Turkish welding machine that failed to do a strong welled and from experience one thing that causes this kind of faults.
According to the customer this machine is still under warranty but he does want to wait for a long time to get back so he brought it to me.
As you can see in the photo, that is a new one and hardly used welding machine.
When my brother next door tested it out, there was a little weak welding going on but not enough to bound two metal pieces together.
When I checked the voltage coming out, it was suppose to be 40 DC volt or higher but this one was below that rate.
Usually, in this kind of fault, it has to do with a transistor with the part number SS8050 either locate where it shows in the photo or the same part number that is located next the amp knob on the other side of the machine. In this case this one here was the fault.
Please click here to visit the SS8050 datasheet
This kind of transistor is a well know one and found a lot in the home appliances like the microwave ovens. So I got a replacement and soldered on board and gave it a try.
This voltage what I was hoping for and most of all I took it next door to my brother and tested and it was working according to its specs.
Mission accomplished.
This article was prepared for you by Waleed Rishmawi, one of our ‘Master Authors’ and currently working in the Bethlehem area of Palestine repairing electrical and electronic equipment.
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Note: You can check his previous article on A Broken Fan Replacement On A Tiny Welding Machine. Model: Hugong
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Parasuraman S
June 10, 2022 at 10:02 pm
The 'welding' expert fixed another welding machine; well done!
Waleed Rishmawi
June 11, 2022 at 1:58 pm
Parasuraman: thanks man. it is always fun to work on such machines. have a blessed day
Babu M S
June 10, 2022 at 10:26 pm
This kind of repair work shows your expert in welding machine.very good job done and added one more knowledge to me.Thank you very much for sharing.
Waleed Rishmawi
June 11, 2022 at 1:58 pm
Babu: I have been working on these machines for a long time so experience pays off the effort. have a blessed day
Neto
June 10, 2022 at 10:40 pm
Can you show the schematics? what is the function of that transistor?
Waleed Rishmawi
June 11, 2022 at 2:00 pm
Neto: sorry I do not have a the schematics, they are not found in the market so we have to go by what we know and experience in such filed. the transister is connected in the same circuit with the amp pot so it will increase the amp rate that goes to the output of the machine to do the welding. have a blessed day
Albert van Bemmelen
June 10, 2022 at 11:21 pm
Obviously the customer Did NOT want to wait for a long time on the repair under warranty.
Waleed Rishmawi
June 11, 2022 at 2:03 pm
Albert: warranty job in this cournty is very frustrating because of the long wait and the shipping withing the cournty. for the customer it is better to have his welding machine in one or two days tops and he will have it ready to go while in the warranty it takes forever to get it back and sometime it comes back faulty. have a blessed day
Josh
June 10, 2022 at 11:32 pm
Thanks for the info.
Waleed Rishmawi
June 11, 2022 at 2:03 pm
Josh: you are most welcome. have a blessed day
Yogesh Panchal
June 11, 2022 at 6:33 pm
Well Done! Waleed
Waleed Rishmawi
June 15, 2022 at 12:56 am
Yogesh: thanks man.
Mr.Chinnappan Innasu
June 14, 2022 at 7:29 pm
This kind of repair work shows your expert in welding machine.very good job done and added one more knowledge to me.Thank you very much for sharing.
Waleed Rishmawi
June 15, 2022 at 4:48 pm
Mr. Chinnappan: I appreciate your comment and I am glad you learned something from this. have a blessed day