Discussion for the Dremel 4000 Variable-Speeds Rotary Tool
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Question: Dremel 4000 Armature Insulation ...
Towards the back end of the armature on my Dremel 4000, there is a spot about the size of a bb where the reddish colored insulation has been burned off, and I see a bright arcing there through the housing.
Is this something I can repair, or, do I need to buy a new armature?
Reply: Obsolete Part
If you can't find parts on ereplacement go to "link removed" and google it. There is several places. The parts you are looking for are on eBay
Question: Dremel 4000 Repair
My sister borrowed my Dremel 4000 a month or so ago. When I tried to use it the other day it wouldn't come on. She told me that while using it the motor just stopped. I took it apart and nothing seems to be burnt or disconnected. Do you have any ideas what I can do to resolve the issue?
Reply: Dremel 4000 Repair
Well without looking at it I could only go with what generally fails on that tool and that's the Electronic Speed Switch
Part Number: 2610004636.Hope that helps.Good luck.
Question: Dremel 4000
brush & spring 2610005646 shows as obsolete. Now what? 3 year old dremel useless?
Reply: Dremel 4000
[QUOTE=gramajen;82565]brush & spring 2610005646 shows as obsolete. Now what? 3 year old dremel useless?"
The link below seems to have those brushes available. Looks like free shipping as well.
link removed 5646 Carbon motor brush for 4000 rotary tool
Question: Speed Hunts
Is the electronic module suspect if the speed "hunts" (varies up and down continuously) with any selection of the speed knob?
Reply: Speed Hunts
Since the 2610004636 Electronic Speed Switch is the unit that controls the speed of the tool. I would suspect that it is the cause of your problem.
Question: Thread Size On End Of Armature
I damaged the threads on the very end of the armature of my model 4000 - need to know the size so I can renew the threads. Thank you
Reply: Thread Size On End Of Armature
As far as I can see the threads on the 261004634 armature are .28 (pitch) x 40 (threads per inch).
Hope this helps,