Questions & Answers
Dremel rotary tool variable speed, low speed speeds up after short use. Will brush replacement solve this issue?
How stable is your line voltage? The SCR phase control used for speed control is more sensitive to line voltage changes at low speeds than at high speeds. Brushes should be changed when they are worn down to about 1/2 of their original length. Much more than this and they don't have enough tension to properly contact the commutator ring. Check with power off when the tool is cold and slowly turn the chuck by hand to feel the resistance. Run it a while and let the bearings warm up. Turn off power and turn by hand again. If it feels looser when warm (which would cause it to speed up at slow speeds), the tool might need to be disassembled and bearings oiled. I use Dexron automatic transmission fluid to lube most motors. Wipe down any excess.
202 views | 1 helpful votes
Dremel multipro variable speed only starts in 4 or 5 speed
with tool unplugged rotate tool end with your finger tips if it gives any resistance to this your bearings have forign material in them (happens if your doing grinding allot) if a liberal dose of light oil (sewing machine) does not improve this friction im sorry but you;ll have to replace tool to run slower speeds
84 views | 0 helpful votes
Have Dremel MOD 395 motor runs and speed control works bot shaft won't turn--worth fixing ??? and how
The tool that you require parts for was discontinued many years ago. Limited parts are available from Dremel.
Inside the tool is a flex coupling and spline driver.
The flex coupling is # 2615294309 and the price is about $ 1.25.
This is the hollow plastic sleeve about 1" long with grooves on the inside, that goes between the motor shaft and the output shaft.
The spline driver is # 2615294308 for about $ 1.00.
Spline driver sits on the direct end of the motor shaft. The flex coupling sits over the spline driver. Spline driver is about 1/4", hard plastic with grooves on the outside.
Total shipping for orders under $ 5.00 is $ 2.50. Orders over $5.00 is $ 4.00. There could be a tax charge depending on which state you live in.
Here is how to order:
Call Dremel Customer Service at 1-800-437-3635 , Monday-Friday from 7 am to 6 pm central time. VISA, MasterCard or Discover to place a Visa, MasterCard or Discover order.
To order by mail:
4915 21st Street
1-800-437-3635 ext. 3636
572 views | 1 helpful votes
How to release dremel tip .already got screw it wont release
Press release button and hold down while unscrewing bolt. Continue to hold button and unscrew bolt until tip is loose enough to pull out if it still won't come out unscrew all the way, take bolt off and pull out tip with channel locks. It just got jammed in when tightening because diameter is probably a little wider
60 views | 0 helpful votes
How to replace the brushes in a Dremel 395 Type 2?
I figured it out. Use a small std slot screwdriver (not a jewelers or hobby screwdriver, more like the smallest standard screwdriver in your regular tool kit). My Type 2 Model 395 has a couple small tabs. Put the blade of the screwdriver on one of the tabs (shaft of screwdriver perpendicular to the tool) and press downward (not too hard) and toward you (if right handed). The plastic tabbed cover should rotate in towards the tool. That's the brush holder and you are rotating it 180 degrees so that the brush comes to the top. It will take a couple of "bites" of the screwdriver to rotate it fully. Be careful b/c the brush is under spring tension and if you rotate it w/o care it will shoot out (my first one did). Anyway, you should see a carbon brush with a slight arc cut in it if you have any brush left. Hopefully, you have little or no brush and a spring. Then it's easy to replace (my brushes were OK and just re-seating them and my tool was OK). Note that the 90930 brushes sold at most hardware stores won't fit. They are for the Types 3,4, and 5 model 395 (and other dremel models). You need the 90929 brushes for the Type 2. My camera is klutzy. If you can't get it, let me know and I'll try to post a picture or video.
1,185 views | 2 helpful votes
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