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HELP- Dewalt Ocslilating Tool Electrical Repair

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KDoug

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Hi,

So I've bought a Dewalt DCS355 off EBay that wasn't working. Took a risk buying it not knowing exactly what was wrong with it, but I have some experience repairing Dewalt power tools. I assumed there was a burnt out wire and I was correct. I finally got around to taking it apart today and and found the problem, but need some guidance on where to buy the parts I need. I wasn't sure if I'd have enough wire to solder back on to the battery terminal, so I would like to replace the whole connector. I should have just spliced some wire to give me more length, but I like taking stuff apart and learning.

Attached are some photos. I'd appreciate anybody's advice.

Thanks
 
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KDoug

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Here's the connector:

The picture with the ruler is the back side of the circuit board where the pins stick out. I basically need to know the correct name of a similar part and where to buy it. It's 20AWG wire.
 

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thertel

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Oct 25, 2016
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297
Mouser or if you have a local Fry's Electronics. Easier solution is to get a pin removal tool and back out the damaged pin and then connect that pin to a new wire
 
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KDoug

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thertel said:
Mouser or if you have a local Fry's Electronics. Easier solution is to get a pin removal tool and back out the damaged pin and then connect that pin to a new wire
Click to expand...

Ok, please be patient with me here, I'm very new to electronics. I've got a few questions:

Fixing to buy me a Hakko Soldering station, what tips do I need for desoldering and soldering a new connector on?

I type in pin removal on Mouser's website and I get a couple hundred items, could you give me a link to one you would recommend?

Also, I'm not sure what the connector is called that I'm looking for, kind of lost right now.

Thanks
 
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captaindiode

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NC
Can you just remove both parts of the connector and solder the wires directly to the board?
 
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LXCam

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Get some solder removing tape. It's just a woven wire that acts like a heat sink and you lay it on the connection then use your iron to heat it up at the backside. Solder is the only thing that will defy gravity and flow towards the heat source. This will clean all the excess solder from the board and you'll be able to remove the pins. I'd suggest for right now you just solder the wires to the board as well and test. But that's a very common connector, any electronics supply will have those in stock.

https://www.wago.com/powerelectroni...50oBsch1QV0b-R2UETuKvhfeXNvdAV1RoCcVcQAvD_BwE

http://www.te.com/usa-en/products/c...-board-headers-receptacles.html?tab=pgp-story

Desoldering wick; https://www.amazon.com/dp/B01I14V4X8/?tag=atomicindus08-20
 
Last edited:
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KDoug

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Southeast Texas
LXCam said:
Get some solder removing tape. It's just a woven wire that acts like a heat sink and you lay it on the connection then use your iron to heat it up at the backside. Solder is the only thing that will defy gravity and flow towards the heat source. This will clean all the excess solder from the board and you'll be able to remove the pins. I'd suggest for right now you just solder the wires to the board as well and test. But that's a very common connector, any electronics supply will have those in stock.

https://www.wago.com/powerelectroni...50oBsch1QV0b-R2UETuKvhfeXNvdAV1RoCcVcQAvD_BwE

http://www.te.com/usa-en/products/c...-board-headers-receptacles.html?tab=pgp-story

Desoldering wick; https://www.amazon.com/dp/B01I14V4X8/?tag=atomicindus08-20
Click to expand...


Thanks LXCam, this helps me get started a little bit. About soldering the wires directly to the board, I suppose I could. I am just being cautious because I feel a bit intimidated by this repair because I've never done any type of electronic repair before. Won't learn unless I try though. I knew about the solder wick material and was going to get some.

Thanks for the links
 
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fasteddie

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Most people would solder splice a new section of wire with some shrink tube over the splice. You already have the connector crimped to a wire, why look for a new one? Question is why did the wire burn up?
Re: desoldering - I prefer a bulb/sucker type. The braided wick works but sometimes requires a lot of heat which may damage other components.
 
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KDoug

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Messages
388
Location
Southeast Texas
fasteddie said:
Most people would solder splice a new section of wire with some shrink tube over the splice. You already have the connector crimped to a wire, why look for a new one? Question is why did the wire burn up?
Re: desoldering - I prefer a bulb/sucker type. The braided wick works but sometimes requires a lot of heat which may damage other components.
Click to expand...

Yea, I know. I'm kicking myself right now. I assumed the connector was one that was snapped in so I started pulling on it and now it's kind of loose. I've got some scrap circuit boards to try my new soldering station out to get my temperature adjusted right. What's a good temperature to start at?
 
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