Question about Dewalt DW056 18 Volt Cordless Impact Driver - 1/4" Drive Hex Shank (Battery Charger and Case Not Included) - Tool Only

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Troubleshooting DeWalt DW567 Type 1 1" SDS Rotary Hammer

I need to know how to troubleshoot the above rotary hammer. The cord is plugged in and there is power to the trigger switch. When the trigger is pulled, there is no response. Using a VOA meter, how do I determine if the problem is the 324556-49 switch or the 324552-02 module or perhaps some other electrical component. DeWalt customer assistance was of no help. Please note that that the "Product" below is different from the "Subject" above. I previously tried to submit this request, but kept getting the message to "enter a valid product". After a couple of emails to FixYa support, I was instructed to choose any DeWalt product for the "Product" field and then click "Get Assistance". Thank you in advance for your prompt reply and assistance.

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  • John W. McLaughlin Mar 05, 2008

    Thank you for your response. Due to my having a senior moment, I neglected to check the brushes. They are worn out. I will order a set and install. The fields checked OK as did the segments on the armature. Upon receipt of the brushes, I will install and report back. Thank you for jump starting my mind.

  • John W. McLaughlin Mar 17, 2008

    Recieved the brushes and installed. That solved the problem. Thank you again for jumpstarting my brain.


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Hope to help but may need more info what problem are you having is it just not working?
did it just stop one day?
did it smoke? or splutter then stop?
have you checked all the segments (copper strips that the brushes rub against) on the armature are still on.
Are your brushes ok?
One problem I used to get a lot on that model is the field, the field is the part that sits around the armature with all copper windings on this sits inside a plastic case called a "jam pot" if you look at the field you will see the windins of copper are connected to 4 terminals, picture the field as 2 halfs top and bottom 2 terminals on top 2 on the bottom now the top 2 terminals should have continuerty through because they are wound together and the same with the bottom so if you get cont through the top and bottom the field is ok if not the field is faulty.
Hope this helps. Sean

Posted on Mar 04, 2008

  • Sean Finnerty Mar 05, 2008

    Ok happy to help hope it sorts it!!!


  • Sean Finnerty Mar 23, 2008

    Ok no probs happy to help!!



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