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Delta 36-725 Table Saw Motor Died!

14K views 16 replies 8 participants last post by  justinbchristensen  
#1 · (Edited by Moderator)
I was cutting box joints with a dado set and the motor bogged down (I guess I was going too fast) and then it just stopped completely. The switch now doesn't do anything at all (no sound or humming). I checked the extension cord and it seems to work with a trim router. I found the little red reset button on the bottom of the motor housing but it doesn't seem to do anything (it doesn't depress very far). Any other ideas? I haven't taken the switch apart too see if maybe it is burned. I have only had it maybe a year and have only used it sparingly.
 
#3 ·
Normal troubleshooting - check power at the outlet, then at the switch (input and output), then power at the motor. Be careful and don't shock yourself. If you have power to the motor, then it's something with the motor itself. First thing I'd do would be to test the capacitors (IIRC, there is both a start and run capacitor in there) - all you need is a simple multimeter in resistance mode. Report back what you find.

Cheers,
Brad
 
#5 ·
I have had the thermal breaker (the reset switch) fail after being tripped by bogging down the saw before (not this model though). I seem to remember that pushing the failed one was sort of squishy like you described. It is possible that you need to replace it .

Did you make sure that breaker in the panel didn't trip? Bogging down a saw can cause it to overload and trip. Make sure that you have power to the outlet before you do anything else. You say that you checked out the extension cord but you didn't say if it was plugged into the same outlet. Also make sure that your GFCI didn't trip either. I had a GFCI melt down once. I am lucky I noticed the burning smell or it could have burned the house down

BTW, using too long or too small a gauge extension cord can cause problems such as tripping a breaker or at least contribute to it when you push a motor too hard. What gauge or amp rating is your cord and how long?
 
#6 ·
Problem solved (duh!). Dumb me had not pressed the reset button hard enough. Tried again pushing hard and it clicked. Great to know that it is there and how to use it, even if it does make me feel like an idiot. Back to work now.

P,S. Cutting the box joint fingers was a little scary on the table saw. It is difficult to firmly hold the piece down and against the jig while taking 1/2""w x 3/4" notches. This is my first time to try box joints. Any hints on how to safely cut them?
 
#7 ·
Problem solved (duh!). Dumb me had not pressed the reset button hard enough. Tried again pushing hard and it clicked. Great to know that it is there and how to use it, even if it does make me feel like an idiot. Back to work now.

P,S. Cutting the box joint fingers was a little scary on the table saw. It is difficult to firmly hold the piece down and against the jig while taking 1/2""w x 3/4" notches. This is my first time to try box joints. Any hints on how to safely cut them?

- DannyW
Need more information. What size pieces are you working with?
 
#13 ·
As an aside to everyone:

What type of blade should be used to make end grain cuts? It's not a crosscut, nor is it a rip. Is there a specific cutter that should be used for end grain? Is a dado cutter the best tool for this cut?

Same question for routing. When I router cut finger joints the "sawdust" is all stringy and threads. Is there a better cutter to use? I've used both straight and angled cutters with similar results.
 
#15 ·
It's only sorta a rip. The grain doesn't clear the same way. Look at the sawdust produced by each and see.

Crosscut dust is about as long as it is wide. Rip cuts are short strings but end cuts are long strings. Should there be different gullets?
 
#16 ·
I use a spiral upcut bit when routing finger joints. It tends to leave fewer fuzzies IME though the type of wood makes a huge difference. I've not had great luck trying to cut FJ in plywood for example but it can be done with the right technique and patience. I prefer to cut them with a bit that is smaller than the finger width with a jig similar to the ones often used for dovetails because it allows you to make a light cut that helps to prevent the fuzzies and chipout.