|Bosch 4100 (Mine is the 4000)|
This is a picture of the newer 4100, but it evidently has the same issues, which is a poorly built motor field winding assembly. When this starts to go bad, you will hear the motor kind of stutter, rpm's go up and down, often hear a chattering noise and see lots of sparking underneath the motor dust cover. The bearing in the armature tailpiece often goes out too, talking the plastic motor case with it. And the motor speed control often has issues and does things like make the motor run backwards and stuff. This is a $600 saw, not that I paid that much for it, and I would be PISSED if my 1 year warranty had just expired. I, of course, bought mine used off of Craigslist for $70 with a stuck lifting mechanism. Oh yeah, it has the least effective dust collection system out of any tool that I have ever seen. The old saws in my highschool wood shop had better dust collection, and they had NOTHING! At least they dropped their dust on the floor. This one throws it in your face and the front of your pants. That IS with the vacuum hooked up!
What do I like? The aluminum table is flat, the blade is square to the slots, and the fence works well and is tolerably sturdy. It has a "soft-start" which should prolong motor life (hahhahahah) and the wheeled stand is sturdy and works very well. The right side of the table is a sliding extension the allows you to rip to the middle of a 4x8 sheet and the fence still stays square. the arbor/shaft thing has NO wobble and it makes great, accurate cuts, which is more than I can say for a lot of saws. I also have a basement workshop, so I don't have very much room at all, much less a REAL table saw, and this one is nicely mobile. If only the damn thing didn't smell like bacon frying.
So where does this leave us?
|Not much under here, is there?|
|Smells like barbecue|
|Replacement mark on the brushes|
|Bad Bearing! Bad!!|
As I said, the parts won't be here for a few days, so I'll show you the actual replacement later. Time to work on some other tools. Kanna re-hab, anyone?