Cuisinart cbt500 does not start

Pretty much that is what happened to me. I found that the motor has 2 "thermal cut-offs" (SEFUSE 113oC). If the motor heats up even a little, these babies kill your blender. They are thermal fuses. Once they blow, it is over until they are replaced. To fix this, the motor must be removed. The spline gismo on top of the blender unscrews with reversed threads. I suggest unsoldering the lead wires from the power supply board, and replacing when done. The cut-offs are inside the taped on white cloth insulation on the top of the field magnets near the brush assemblies on both sides. I replaced them (both were blown) with 2 of NTE8242 ($1.60 each, 240oC 15A). These are way too hot, but that is what I had on hand. I thought that the electronics were defective at first, and I replaced the entire board assembly with a small/cheap ceiling fan wall switch /speed controller from the hardware store (600W 5A) for $10. The root cause of all of this is that the motor fan is not working. The airflow is blocked by base. I put small extenders on the feet and now there is much more airflow. Only time will tell if this is an effective fix. It appears to me that the device my have started out "nice" when it was designed, but cheapened (probably by middle managers taking bonuses for "improving" the design) many times. The fuse is gone, the case is plastic, etc. It really makes me wonder how it got past UL approval.

The clutch assembly is for the teeth on the base itself. If your problem is with the teeth that are connected to the bottom of the blade that sits in the jar, you want to order a blade assembly instead.

-Tha Mp3 Doctor (also loves Cuisinart)

The motor brushes may be in need of replacement.

The gasket goes between the cutting assembly and the glass. So you slip it on over the top of the blades and then put the glass jar over top of that. Screw the bottom cap on to tighten everything together.

The drive is replacable and available from Cuisinart, you will have to sign a waver to get the part. the drive is screwed onto the motor shaft with reverse threads. the plastic drive will have to be completely broken off of the unit to expose a brass"nut" which was internal to the drive. depending upon your model you may have to remove the lower half of the base unit to access the lower part of the motor shaft. there will be a slot in the end of the shaft for a large flat blade screwdriver. this is used to hold the shaft still while turning the drive "nut" with a vice grip pliar or similar. the new drive is just threaded onto the shaft and normal operation tightens it.

Here is the link to the manual; http://www.cuisinart.com/share/man/9_man.pdf Page 4 should tell you what you need. Hope this helps :)