I NEED TO REPALCE A FUSE IN A DEWALT DW9106 GAHRGER BUT DON'T KNOW WHAT SIZE IT IS

A fuse blown ? measure always first the mosfet irf740 if thats not shorted that could be the cause of the defect in case ? or some of the 4 primary bridge diodes replace 1n5408 or by299 presumably c32 its a blue or black high-voltage capacitor .i don,t know for sure but lies in the expectations this is a repair suggestion that could be to find in some popular Dewalt chargers , and do a error research proof allways over a 200w lamp thats in serial with the loader power cable if you make error research to find the part that caused the problem. then you will not blow up parts again if the cause is not find in priority , but a variac and oscilloscope can also be used.

From what i gathered there are two
Fuse (part No. 5140019-09)
Fuse 1A (part No. 429790-32)

Scotty you need a Torx screw driver

Don, I don't know where you might have called but you can download this manual in a couple minutes by going to "dewaltservicenet.com" and on the left hand side type in your model number under manuals and it will redirect you so that you can download. The manual is 60 pages long if you choose the full manual or you can see what language you want and set your printer accordingly. Please let me know if you need more assistance.

go to the tip section under my handle and there are detailed instructions that will work with your drill. If you have a problem finding them let me know.

This takes a 1 Amp fuse

I just picked up a similar model someone was throwing away. turns out there is a thermal fuse inside the motor housing that blew. I just need to find the values of the fuse and repalce with appropriate size. motor runs when fuse is bypassed.

Inside my (older, non nano) dewalt charger there is indeed a fuse, which has never blown (yet).
I'd be suggesting that you contact dewalt before you void your warranty by opening it up though.

Hi the only other problem it could be is it should have a button battery inside that keeps the memory with power whilst its not plugged into mains.
If it hasnt been used for while this might be flat or if is being used regular then the chances are you need this replacing let me know how you get n ill help you more the button battery is about the size of a bottle top it might have come loose or just not working but you need to remove the case to do this let me know how you get on ok

I have one of these for parts, fuses look ok, but doesn't power on..do you know where your fuse is on the board?jerrye@rock.com