DSavant

Thank you for the exploded diagram! I have used a silicone lubricant. I will reference the PDF you so generously provided. Thanks Wingless!

I own the Bosch 4100 table saw attached to the portable stand and mount. I've worked with the saw for maybe 3 years without incident, but within the last week the blade adjustment has seized on me several times. I've been thorough in my cleaning of the undercarriage using compressed air and silicone based lubricants. No random wood chip has lodged itself in the gears. I have seen that others online have had this problem with the 4100, but have yet to read or find a fix. By turning the tool upside down and having it rest face down, (table top on the ground) with the assistance of gravity I was able to get the motor to move on its spindles, but in the upright position it consistently gets stuck or seizes. Bosch is sending me replacement gears for the blade adjustment crank. The service person acknowledged that other owners have had this issue and this seems to be Bosch's standard "fix", but I am skeptical. The gears are made of plastic unfortunately, and it seems reasonable that they would wear, but my gears seem to move freely in accordance with the crank, but they just aren't able to push the saw and motor north and south on the spindles. Anyone with any experience solving this problem it would be great to hear from you. Thanks in advance. Doug