Question about Tools & Hardware - Others
Where can I obtain a manual for a rockwell model 503 belt sander ?
Posted by Anonymous on
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Posted on Jan 02, 2017
Did you dress the brushes to the contour of the commutator?
You wrap the commutator with fine sandpaper and rotate under the brushes till the curve conforms.
If this does not reduce the arcing, then you may have an armature with a bad winding.
Posted on Sep 30, 2009
Testimonial: "Sounds logical. I'll try it."
SOURCE: Porter Cable belt sander
try to rig the nozzle of a shop vac to the part where the bag would normally connect and run the sander simultaneously with vac for a few minutes and see if that helps
Posted on Jan 11, 2009
I have just purchased a Makita 9401 belt sander however, have no manual and it is unclear how to change the belt. Any help would be appreciated.
Posted on Mar 15, 2009
SOURCE: broken drive belt on belt sander
My answer comes almost a year after the original question, but I'll post it anyway for those who end up here after a search.
Black & Decker no longer supplies drive belts for the BR400 sander, but you can get a replacement elsewhere if you know what to ask for.
The belt is a synchronous, single-sided "XL" series belt, and mine had 120XL031 printed on it. The belt width is 0.31in or 5/16in or 7.9mm. Its pitch (distance from tooth to tooth) is 0.20in or 1/5in or 5mm. Its total height is 0.09in, and tooth height is 0.045in. It has 60 teeth, making the total length 12in.
I found a replacement at sdp-si.com, part number A 6R 3-060031.
Look here for timing belts (inch), then narrow the search for single-sided, .200 (XL) pitch, 60 grooves, 5/16 width.
Posted on Jun 16, 2010
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