How do I lubricate/unfreeze the blade positioning mechanism on table saw?

CHECK THE RETURN SPRING

In most cases this is simply a lubrication situation. Good luck getting to the mechanism, but it can be done. If you have shop air, blow all the sawdust off the mechanism, use a rag and brush if you don't, and then put a very light coat of grease on the screw mechanism or whatever the saw uses to raise the blade.

The only solution is to remove the trunnions and threaded rod, thoroughly clean them and lubricate with a silicone based product. Clean these areas at the end of each use to extend the period between tear-downs (yes, you'll probably need to do it periodically). Also, once disassembled, clean and lubricate the guides on the motor mount.
I removed the motor altogether to make this task easier. I recommend cutting the power lead to it and installing a quick connect to avoid having to go through the trouble of disassembling the power switch. Good luck.

I have a band saw and I am using a sawing fluid for blade lubrication. Try looking at lowes . You can ask them how to lubricate and what lubricant to use. Watch this video .

Check that the blade is not warped or binding. Don't use long extension cords. Check your home breakers. Also check if the table saw has a breaker. Don't force lumber into the blade too fast and don't jam the lumber between the guide and blade. Try a different outlet and check your wire for breaks. Good luck!

Unplug the saw. Look inside the blade housing for any foreighn objects. if it is clear, shoot some oil into the bearings and work it in well.

Try lubricating with silicone spray. I use it for just such things, and I'm happy with how it works. Also, clean and lubricate the lock on the elevation control.

--W/D--

Usually the guard sticks due to dirt ... clean the entire mechanism and lub with a dry lubricant (graphite or similar) Check for screws that may be too loose or to tight.

You are right, this saw is dangerous ... dont use it until you have it repaired (by you or the DeWalt Service Center near you).

Thanks for your interest in FixYa.com

There should be a locking knob on the front of the crank or a locking collar behind the crank depending on which model or age of the saw that you need to tighten down to lock the arbor height.

If this is a new saw, return it to the store for an exchange, but if it's an older than a few months:

These contractor saws often acquire this problem. It's usually dust, specifically pine dust (it has sap thus making it stickier), on the screw or the sliding mechanism. What I do is:

1. Unplug the saw
2. Remove the blade
3. Dismount the saw from its stand
4. Lower the mechanism all the way
5. Flip the saw over onto its table
6. Access the screw and the lift mechanism
7. Use a brush to remove the accumulated wood dust from the screw and the mechanism.
8. If you have a leaf blower or access to one; blow the interior of the saw (wear eye protection always!)
9. Do NOT oil the mechanism, this will only serve to gum everything up faster - use a dry lubricant (graphite or silicone) or none at all.

To avoid this in the future;

1. Avoid resinous woods (not a likely solution).
2. Blow the dust from the saw interior when finished using it (this works well) - use an air hose or a leaf blower, the leaf blower actually works best.
3. After cutting and before stowing the saw; run the blade to its highest position and then down below the table. This pushes any dust off the mechanism and screw.

If you find little or no dust accumulation, it's possible the saw has a bent screw or binding mechanism and will require service.

Always be safe; unplug the saw and remove the blade when working on it, and always retract the blade below the table when not in use to prevent damage to the blade - or being cut by an exposed blade; they're sharp!