20 Most Recent Bosch 12" Dual - Bevel Compound Miter Saw with Upfront Controls and Laser Tracking 4212L Questions & Answers

On the Bosch compound sliding miter saw, turn the blade nut clockwise to remove it. I’m happy to assist further over the phone at https://www.6ya.com/expert/bill_f6ca18ca1db028ed

If it was fall ornot beaten by other falling tools in your truck and have no warranty loose a central locknut in the middle of the bottom to remove the bottom plate clean it from possible blocking dirty and mount it together again. Don,t tighten it to fast but so you like but just no tolerance has.

the brake is trying to work or there is dust or something in motor

Go to this site and put in your tool details and you will be able to see http://www.powertools-aftersalesservice.com/public/bosch;jsessionid=tFKSq-eZLkHmbJMuJakZOmx?lgRedirect=true

This can happen when the brushes get low, so check those first of all. They are at the back end of the motor, under the black end cap. If they are not worn low, then I would guess that it is a problem with an electronic module, but I am not 100% familiar with this model. Sometimes the module is clipped to the field coil, and some macines have it incorperated into the man switch or PCB.

ereplacementparts.com or searspartsdirect.com

blade for sure are very dull

You will have to use a regular square to check out the crafstsman and find out where it is wrong.

I have detailed instructions in the tip section, you might be able to click on my icon to find them. Let me know if you need more assistance

Hey John. Have you tried to find your part that you need at the sears parts website? www.searspartsdirect.com You should be able to look up your model and see a parts breakdown and get the part# you need. If you have any problems you can call there 800 phone number to get help. Hope this helps ya. Good luck. T-bone

Yes, Did you buy it new? It has two heavy plastic seen through plate that are attached to each other. This safety shield is gravity fed. That mean as one pull down the saw the safety guard will pivot into the upper shield. As the saw go back up after cutting a piece of wood. The safety shield will drop back into it safety position covering the 12" blade. GB...stewbsion

capacitor is bad

If it were my saw I would use some WD40 on the motor armature for both ends of it. A light spray and then turn by hand a dozen or so times to work it into the bearings. Should be no problem to turn it on after that. You can always add more, but it is difficult to take any away if you have added too much. Have some paper towels around in the event the WD40 starts flying around a bit.

The bevel is an angle fiding tool. it consists of a wooden section about 4" long with a swivel bolt at one end connected to a slotted metal blade (similar to a 1 foot steel ruler). The bolt has a wing nut and bolt to allow loosenig to allow the blade to rotate and slide to the required angle where it is locked into position using the wing nut.
The mitre is a wooden block with slots cut into it at pre determined angles. ie 45 degrees. When cutting a mitre joint the wood is placed against the block and the saw follows the line of the slot cutting the 45 degree angle.
Hope this makes sense and good luck