Biggie Posted October 5, 2017 Report Share Posted October 5, 2017 Well last week one of the guys at work brings me my 2712 fuel rotary hammer "was drilling just fine set it down in between holes and now nothing but the light." It was a factory reconditioned that I picked up cheap a few years back when I still wasn't sold on the idea of a cordless rotary hammer. Well turns out I love the thing and hardly ever use a corded sds anymore. So $80 on ebay for a new electronic assembly and a night of fun and it's back from the dead. 3 Quote Link to comment Share on other sites More sharing options...
HiltiWpg Posted October 5, 2017 Report Share Posted October 5, 2017 Hard to tell by looking at the pic, but did you have to replace the entire stator assembly with the electronics as well? This is akin to what I was mentioning to Kornomaniac.Sent from my iPad using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
HiltiWpg Posted October 5, 2017 Report Share Posted October 5, 2017 Can you take some close up pics of the faulty stuff?Sent from my iPad using Tapatalk Quote Link to comment Share on other sites More sharing options...
Biggie Posted October 6, 2017 Author Report Share Posted October 6, 2017 Yep the electronics assembly comes complete with trigger, battery terminal, little black box of podded electronics, light, and stator. The only thing that doesnt come with it is the armature, gear box, and case. As far as I could tell the only way to replace any of these components was to buy the entire assembly pre wired. Which would have been $106 had I not found it on ebay. I guess it takes some of the trouble shooting out of it haha. I took the old assembly back to work, I'll try to post some more pictures of the old stator and electronics. I dont really know what part of it failed but it was all pretty dirty with concrete dust. These are some pictures I took just so I had something to go off of for reassembly. 1 Quote Link to comment Share on other sites More sharing options...
HiltiWpg Posted October 6, 2017 Report Share Posted October 6, 2017 Potting is a blessing and a curse. Great for moisture, terrible for high demand heat dissipation and hard to repair. Smell around those MOSFETs !Doesn't look like there is any airflow or cooling either. Still, $80 well spent! Sent from my Pixel using Tapatalk Quote Link to comment Share on other sites More sharing options...
Biggie Posted October 6, 2017 Author Report Share Posted October 6, 2017 Yea it was still the cheapest way to get a working cordless rotary hammer. Quote Link to comment Share on other sites More sharing options...
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