Delta TS electric/switch issue? Not sure

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Forum topic by Dan posted 03-07-2011 10:11 PM 1608 views 0 times favorited 5 replies Add to Favorites Watch
View Dan's profile


3630 posts in 3022 days

03-07-2011 10:11 PM

I have a Delta contractor TS thats about 15 years old or so. I have been having a slight problem with the saw turning on and I cant tell if its the switch or some other electrical issue.

Here is what happens, every now and then I will go to turn the saw on and the saw will either power up for just a quick second then kill or it wont start at all. I am not flipping a breaker in my panel when that happens so I am thinking the issue is in the saw somewhere. When this happens I flip the switch on and off and nothing happens. I then unplug the saw, plug it back in, push the button on the motor (even though I don’t know what it does, just seemed to me to be some kind of reset button, its red) and turn the saw on. It will usually start after I do that but sometimes it doesn’t and I repeat the steps until it starts.

This does not happen very often so I just kind of ignored it. However I have noticed that the problem tends to only happen when the saw is unplugged and plugged back in or after moving the saw around in the shop.

The switch on the saw is NOT the original delta switch. I bought the saw used and the previous owner replaced the switch which had gone out with a single pole switch. Looking at his work it all appears to be wired just fine.

Also if someone could explain to me what that red button on the motor is and if it is a reset button like I assume what would be causing the motor to be doing this?

The problem only happens when its first turned on. I have never had the motor kill during use and I don’t see, feel or hear any problems when using the saw.

I am just stumped as to where to start looking. I am thinking it could be one of a few things either a loose wire, bad connection somewhere or not enough power being supplied to the motor. Worse case its a problem with something in the motor itself, its wired for 110 and I do use an extension cord with the correct gauge wire.

I hope I have explained enough for someone to hopefully help me with this. I am not to smart when it comes to motors and how they work.


-- Dan - "Collector of Hand Planes"

5 replies so far

View Roger's profile


20948 posts in 2946 days

#1 posted 03-08-2011 12:16 AM

Hey Dan.
1st I’d get rid of the extention cord. Even if it is the right gauge. That may be part of the problem. BUT, if it were me, I’d replace the switch with one o them that has a big red OFF flapper on it. I put one like this on my old Craftsman TS. You can see a pic of it in my shop pics. Was very easy to replace, and I think I actually caught it on sale for about 20 some bux.
I’m sure you’ll have some other suggestions and/or solutions.
Good luck with it.
Almost forgot, I had some trouble with one of my DC switches that pretty much did the same thing. so I changed it also, and it works fine

-- Roger from KY. Work/Play/Travel Safe. Keep your dust collector fed.

View klassenl's profile


188 posts in 2801 days

#2 posted 03-08-2011 04:24 AM

It sounds to me like a loose connection somewhere. Since you say it only happens after moving it around, the first place to check it the ends of the extension cords, the cord end of the saw, and maybe the plug in the wall. After that it could be a worn switch, or it could be loose connections in the motor itself.

Yes the red button is most likely a thermal overload reset. If the motor gets too hot there is a thermal element that disconnects the power so the motor won’t burn out. Many new motors have an automatic thermal reset.

If you PM me with some pictures I might be able to help you a little more.


-- When questioned about using glue on a garbage bin I responded, "Wood working is about good technique and lots of glue........I have the glue part down."

View JonSnc1's profile


46 posts in 3155 days

#3 posted 03-08-2011 04:44 AM

I actually had what sounds like the same problem with my Delta saw. Although, I didn’t notice if it only happened after being unplugged; it might have, just didn’t notice. Anyway, I had the original switch and I took it apart and didn’t see anything wrong. I replaced the switch anyway, and voila, problem solved. If it was anything else I’m sure I never would have figured out what it was. By the way the red button puts you in another dimension where the trees build stuff out of us.

View fredf's profile


495 posts in 3852 days

#4 posted 03-08-2011 05:58 AM

I had a problem with my jointer, it would not shut off. when I pulled the switch plate, there were so many chips in there that you couldn’t push the buttons!!!! I made sure to seal it up better when I re assembled it!!

-- Fred, Springfield, Ma

View Dan's profile


3630 posts in 3022 days

#5 posted 03-08-2011 06:51 AM

Thanks guys, sounds like I will check the switch first. Hopefully that is where it is. That is kind of what I was leaning towards.

-- Dan - "Collector of Hand Planes"

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