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Delta 36-725 Repair help and warning

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Forum topic by dbdors posted 12-07-2019 03:43 PM 557 views 0 times favorited 11 replies Add to Favorites Watch
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dbdors

10 posts in 1851 days


12-07-2019 03:43 PM

Topic tags/keywords: tablesaw repair motor replacement

I am writing this post for two reasons.
1. I am looking for any last hope that I can repair this motor on this saw.
2. As a warning to others that are searching out reviews and trying to make a decision to purchase this saw.

First. I bought this saw used several months back and it had had worked well for me up till now. I have been away from woodworking for some time, and decided to downsize my tools from a unisaw to this 36-725. I was not doing much woodworking a needed the space in my garage.

It had done all that I needed. Then on Saturday in the middle of a project, it quit running. First the motor slowed, then quit running all together. The rear end of the motor was very hot. I let it cool and reset the breaker and still it would only hum.

The saw has been running on 220v since I have had it. After searching some threads I bought both the start and run capacitors. The saw tries to start (stronger than the hum), but wont turn.

I believe at this point that the bearing or something internal has it jammed. I can turn the arbor, but is maybe a bit tighter than I would expect.

As I see it I have two options, 1. try and make a DIY repair (saw new is $600 and replacement motors are $750-1000, or 2. throw it away and go buy a Ridgid or Grizzly.

As I have made upgrades and other add to the saw, throwing it a way is not the best choice.

So with that said, I am looking for thoughts on how to remove the motor and disassemble. I called Delta and they were absolutely no help. The tech basically said open the parts schematic and have at it. There has been a guy on the local craigslist that say they can repair tools like saws, I may give them a shot before I try myself.

So please share any thoughts if you have tried to repair one of these.

Finally, If you are considering this saw, I would highly caution you against is. Unless you buy new and it is under warranty. I think my saw is about 4 or 5 years old. It was in great condition and care. But from reading, its seems that motor failure is a common failure with the saw. So be warned. And consider another saw.


11 replies so far

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dbdors

10 posts in 1851 days


#1 posted 12-07-2019 04:21 PM

I did not know that there will be a delay in making the post.

A couple of things have happened since initially posting:
1. I bought both start and run capacitors. The humming became more of a strong click and hum rather than a mild hum. But is still will not run.

2. I have since taken the motor out of the saw and took it to a guy that does motor repair. I am hopeful that he can find a fix. Taking that thing apart was a major pain.

Was hoping that it would be fixed and I could pick it up today, but the guy is busy. When I dropped off the motor, some had just dropped off a very old Porter cable belt sander and router. So I was next in line.

View Dan Katz's profile

Dan Katz

93 posts in 3246 days


#2 posted 12-07-2019 04:30 PM

You can buy motors from Harbour Freight and Northern Tool pretty
cheap just depends how it needs to be mounted…
Dan

-- VillageCarver,Chattanooga

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dbdors

10 posts in 1851 days


#3 posted 12-08-2019 01:43 AM


You can buy motors from Harbour Freight and Northern Tool pretty
cheap just depends how it needs to be mounted…
Dan

- Dan Katz


I only wish it were that easy or I would have done it already. But unfortunately this thing has a proprietary unit that is combined with the motor, drive belt, arbor and trunnion assembly all in one unit. Looks like they started with a radial arm saw motor design and modified it for table saw use.

View Underdog's profile

Underdog

1437 posts in 2642 days


#4 posted 12-08-2019 02:44 AM

I hate those proprietary motor things… And this is why.
Any other saw you could get a motor and hang it where the old one was. With those direct drive things, you’re just out of luck.

-- Jim, Georgia, USA

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MrUnix

7595 posts in 2806 days


#5 posted 12-08-2019 06:12 AM

Sounds like you need to open it up and see what is happening. Description sounds a lot like a bearing that has seized, but you won’t know for sure until you pull those 4 bolts. Hopefully it’s just a $5 fix and didn’t do additional damage.

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

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dbdors

10 posts in 1851 days


#6 posted 12-09-2019 02:04 AM

I dont believe the issue is bearings or mechanical. No noise or excessive stiffness. This is an electronics issue. i have it at a motor repair guy. Hopefully he can fix.

View Buck_Thorne's profile

Buck_Thorne

43 posts in 1678 days


#7 posted 12-10-2019 04:38 PM

I have that saw as well. The top warped on me about a year in. I wasn’t able to find my receipt, so gave up on trying to get a warranty repair and have just lived with it. Haven’t had any problems due to that, but it still didn’t make me happy. Aside from that, I love the saw, but I’m very much interested in how you resolve your problem. Please keep us posted.

View DNHerring's profile

DNHerring

2 posts in 1443 days


#8 posted 12-10-2019 07:44 PM

I have the same saw with no issues thus far. I am curious what other upgrades you have made that make replacing it difficult.

View dbdors's profile

dbdors

10 posts in 1851 days


#9 posted 12-13-2019 02:29 PM

UPDATE:
Got a call earlier from the repair guy.
1. The motor seems to have a number of issues
2. He has been able to get it to run but only intermittently.
3. Found a broken wire, right where the power feed connects to the motor via the strain clip. That is weird.
4. The little white device is a micro switch and he said when it ran it was sparking. He has since replaced it with a new one.
5. In the process of testing, switching from 220v to 110v, found that the switch had issues. Unfortunately it is broken in the process or removal. Has a new one coming (sounds like from China).
6. He still thinks that there is some sort of internal wiring issue, that only lets the motor run for a minute or so, (like a poor connection that heats up and breaks connection, sort of what I was experiencing at the start).

Unfortunately the parts will take a while, if you have every ordered from China, the process can be slow (mostly waiting in customs here in the US.)

Really sounds like this motor has a lot of substandard parts.

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dbdors

10 posts in 1851 days


#10 posted 12-13-2019 02:30 PM



I have the same saw with no issues thus far. I am curious what other upgrades you have made that make replacing it difficult.

- DNHerring


A drop down outfeed table. A 4” dust port on the bottom. Made some zero clearance inserts. I bought a Shark guard, but may not use it much. Was getting ready to make a tool box for the right wing opening.

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dbdors

10 posts in 1851 days


#11 posted 12-20-2019 03:12 AM

Update 2:
1. As I mentioned above, one issue that the repair guy found was that he thought the switch that transitions from 110v to 220v was bad, and he broke the switch in the process of getting it out, so he couldn’t fully test it.
2. He ordered a replacement on Amazon, but the one he got was coming from China. I’ve ordered lots of stuff from China and I know that takes a long time, and I didnt want to wait. I found one that was in the US and shipped it to him in a couple of days.
3. He was able to work on it today and got the new switch installed today, and said that it is running great. So the 110VC/220V switch was the main issue. He said it was not an exact match in that it needs a jumper to make it work on 220V. But he got the saw running. So I hope to have it back by Monday.

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