Broken motor mount, craftsman table saw 315.228390 - Woodworking Talk - Woodworkers Forum
 
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post #1 of 15 Old 12-14-2017, 03:14 PM Thread Starter
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Broken motor mount, craftsman table saw 315.228390

Hello, I am new to this forum. I did some searching to see if this has been addressed, but didn't find anything. If there's a thread you can point me to where my question has already been answered, that would be great.

I have a craftsman table saw model 315.228390, about 20 years old. I love the thing, but it has a broken motor mount. This is the cast light-colored piece that the motor bracket attaches to, the one that has the parallel shafts penetrating through it, marked "shafts" in the pic (stolen from another thread, I think of an older saw). As I understand it, the part is no longer made.

I tried having it welded, but the welder didn't promise it would hold, and it broke easily. So I am left with a few options, as I see it:

1) Find the part through some third party manufacturer
2) Find it through a forum where people are selling off parts of their saws
3) Have it re-welded, maybe at a different shop
4) Try to rig up a substitute part, or have one fabricated. I suspect that it has to be metal, because of the weight and vibration and so on.
5) Sell it off for parts myself and get a new saw

I understand from some reading I did that this part is an achilles heel of the saw so my problem is not unique. I'd like to hear if anyone here has successfully solved this problem, and if so how.

Thanks!
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post #2 of 15 Old 12-14-2017, 03:25 PM
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Check Ebay if you want an original part, they do show up, otherwise have one made up from some steel plate that will last a lifetime.

Wise men speak because they have something to say; fools because they have to say something -Plato

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post #3 of 15 Old 12-14-2017, 04:50 PM
where's my table saw?
 
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Frank is correct

All kinds of them on Ebay:
https://www.ebay.com/sch/i.html?_odk...mount&_sacat=0

The answer to your question will only be as detailed and specific as the question is detailed and specific. Good questions also include a sketch or a photo that illustrates your issue. (:< D)
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post #4 of 15 Old 05-19-2018, 09:35 PM
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Hi guys,

I have been reading this site from time to time whenever I have troubles. And I really appreciate all the helps I have recieved by just reading the archives.

A couple days ago, I broke my craftsman 315.228390 motor mount support just like Bob, and possibly many others, did. I also searched all the possible places for the parts in vain and had to look them up on eBay. Just before I almost gave up and decided to hate myself to bend over to those eBayer for 70 bucks for a used and potentially soon-to-break again used parts, I stopped by our local woodshop that sells Sawstop. Here is the good news that I want to share with you, and hope no one will ever need to resort to buying craps from those eBayers.

Sawstop's contractor's table saw(one of the only three models of their saws), is exactly the same style as 315.228390, and possibly all the other back hanging motor style saws.

Here is the manual: http://www.sawstop.com/support/manuals/contractor-saw
Here is part order site: http://sawstop.3dcartstores.com/CNS_c_281.html

Here is a list of parts I ordered. I didn't order everything for that module as I planned to reuse some screws.
Their website is designed very well, when you search the parts, they show pictures. The replacement part is actually better than the old one; they reinforced it.

Happy sawing. :)

part name | unit price x amount | total price
--------------------------------------------------------------------
CNS-07-073 Motor Mounting Pin $2.15 x 2 $4.30
CNS-07-072 13mm E-Style Retaining Ring $0.10 x 2 $0.20
CNS-08-021 M10x19x1.45 Plastic Washer $0.45 x 1 $0.45
CNS-07-071 M6x12 Button Head Phillips Shoulder Screw $0.40 x 1 $0.40
CNS-07-074 Belt Guard Assembly for CNS $6.00 x 1 $6.00
CNS-07-061 New CNS Motor Mounting Bracket $8.00 x 1 $8.00
CNS-07-067 Motor Mount Plate $12.00 x 1 $12.00

Last edited by Min Peng; 05-19-2018 at 09:45 PM.
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post #5 of 15 Old 05-20-2018, 02:26 PM
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Not all ebay parts are bad. I broke the casting on the end of my Craftsman jointer that holds the fence. A poor welding job did not hold. The first one I saw on ebay and did not buy, was patched from the same failure as mine. The second one was from a later model that had been modified by the manufacturer to correct this problem. Just from the picture I could see the improvement. For 20 bucks I got an improved one on ebay. It is a crap shoot and I have been burned but sometimes it is the only game in town and there is no SawStop replacement.
Quote:
Originally Posted by Min Peng View Post
Hi guys,

I have been reading this site from time to time whenever I have troubles. And I really appreciate all the helps I have recieved by just reading the archives.

A couple days ago, I broke my craftsman 315.228390 motor mount support just like Bob, and possibly many others, did. I also searched all the possible places for the parts in vain and had to look them up on eBay. Just before I almost gave up and decided to hate myself to bend over to those eBayer for 70 bucks for a used and potentially soon-to-break again used parts, I stopped by our local woodshop that sells Sawstop. Here is the good news that I want to share with you, and hope no one will ever need to resort to buying craps from those eBayers.

Sawstop's contractor's table saw(one of the only three models of their saws), is exactly the same style as 315.228390, and possibly all the other back hanging motor style saws.

Here is the manual: http://www.sawstop.com/support/manuals/contractor-saw
Here is part order site: http://sawstop.3dcartstores.com/CNS_c_281.html

Here is a list of parts I ordered. I didn't order everything for that module as I planned to reuse some screws.
Their website is designed very well, when you search the parts, they show pictures. The replacement part is actually better than the old one; they reinforced it.

Happy sawing. :)

part name | unit price x amount | total price
--------------------------------------------------------------------
CNS-07-073 Motor Mounting Pin $2.15 x 2 $4.30
CNS-07-072 13mm E-Style Retaining Ring $0.10 x 2 $0.20
CNS-08-021 M10x19x1.45 Plastic Washer $0.45 x 1 $0.45
CNS-07-071 M6x12 Button Head Phillips Shoulder Screw$0.40 x 1 $0.40
CNS-07-074 Belt Guard Assembly for CNS $6.00 x 1 $6.00
CNS-07-061 New CNS Motor Mounting Bracket $8.00 x 1 $8.00
CNS-07-067 Motor Mount Plate $12.00 x 1 $12.00
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post #6 of 15 Old 05-20-2018, 04:58 PM
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Quote:
Originally Posted by Mycrossover View Post
...For 20 bucks I got an improved one on ebay. It is a crap shoot and I have been burned but sometimes it is the only game in town....
Better odds than Vegas and when it works out I feel so cool! Besides, $20 isn't that big of a bet, what's the smallest chip on the Vegas Strip these days?
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post #7 of 15 Old 09-14-2018, 10:23 AM
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Quote:
Originally Posted by Min Peng View Post
Hi guys,

I have been reading this site from time to time whenever I have troubles. And I really appreciate all the helps I have recieved by just reading the archives.

A couple days ago, I broke my craftsman 315.228390 motor mount support just like Bob, and possibly many others, did. I also searched all the possible places for the parts in vain and had to look them up on eBay. Just before I almost gave up and decided to hate myself to bend over to those eBayer for 70 bucks for a used and potentially soon-to-break again used parts, I stopped by our local woodshop that sells Sawstop. Here is the good news that I want to share with you, and hope no one will ever need to resort to buying craps from those eBayers.

Sawstop's contractor's table saw(one of the only three models of their saws), is exactly the same style as 315.228390, and possibly all the other back hanging motor style saws.

Here is the manual: http://www.sawstop.com/support/manuals/contractor-saw
Here is part order site: http://sawstop.3dcartstores.com/CNS_c_281.html

Here is a list of parts I ordered. I didn't order everything for that module as I planned to reuse some screws.
Their website is designed very well, when you search the parts, they show pictures. The replacement part is actually better than the old one; they reinforced it.

Happy sawing. :)

part name | unit price x amount | total price
--------------------------------------------------------------------
CNS-07-073 Motor Mounting Pin $2.15 x 2 $4.30
CNS-07-072 13mm E-Style Retaining Ring $0.10 x 2 $0.20
CNS-08-021 M10x19x1.45 Plastic Washer $0.45 x 1 $0.45
CNS-07-071 M6x12 Button Head Phillips Shoulder Screw $0.40 x 1 $0.40
CNS-07-074 Belt Guard Assembly for CNS $6.00 x 1 $6.00
CNS-07-061 New CNS Motor Mounting Bracket $8.00 x 1 $8.00
CNS-07-067 Motor Mount Plate $12.00 x 1 $12.00
How did it go using those parts? Did everything fit?

Thanks,

John
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post #8 of 15 Old 09-17-2018, 03:05 PM
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Hi John,

Motor Mounting Pin turns out to be too short, so I reused the old ones.
Belt Guard has a different shape than the old one but the positions of screws are the same, so it's good.
The most important part, the Motor Mount Plate and Bracket have the same dimensions as the old ones and the plate is fortified. Fit perfectly.

I also bought the belt and hoped it will fit but it's totally wrong length. So, don't spend money on trying it.

Cheers,

Min
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post #9 of 15 Old 09-24-2018, 07:00 PM
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I saw this and am quite happy to see the post about the SawStop plates. Will the Craftsman Motor Mount Bracket work on the SawStop Motor Plate (the one with the metal rods)? If so, thank you s much for making my day. Or do I need to order the motor mount assembly: https://sawstop.3dcartstores.com/CNS...ly_p_1387.html ?


Thanks,
Mike
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post #10 of 15 Old 09-25-2018, 12:15 AM
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Yes, the craftsman bracket can work on SawStop motor plate. SawStop's motor mount bracket is identical to Craftsman's. Like I said, the biggest effort is to reuse the mounting rod from Craftsman's. A bit of lubricants help a lot on removing and inserting them.
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post #11 of 15 Old 09-25-2018, 12:43 PM
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I find it very interesting that a company that is so protective of their patents just happens to use a part almost identical to another brand of tool. ��

Wise men speak because they have something to say; fools because they have to say something -Plato

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post #12 of 15 Old 10-18-2018, 11:31 AM
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Ryobi, no less (315.***). Sawstop is made in Taiwan. You can never tell who was involved in the design. Maybe the same factory made both parts. Maybe the same guy designed both saws and had the prints in the drawer.
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I find it very interesting that a company that is so protective of their patents just happens to use a part almost identical to another brand of tool. ��
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post #13 of 15 Old 11-25-2018, 03:18 PM
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I had the same exact problem with my table saw model # 315.228390. I bought the parts mentioned above from Sawstop. They fit perfectly. Here are some before and after pics as well as part comparison.
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post #14 of 15 Old 05-09-2020, 02:03 PM
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Just like was posted earlier, the motor mount plate sold by saw stop fits perfectly on the Craftsman model 3151.228310 saw except don't bother getting the assembly from Saw Stop since the pins are too short so just pound out the old pins and reuse them (don't forget to loosen the two hex set screws before trying to remove the pins). And the motor mount plate by itself is only $12.00 vs $25.00 for the assembly. The motor mount plate is Part Number:CNS-07-067 on Saw Stop website http://sawstop.3dcartstores.com/Moto...ate_p_356.html



Hope this helps everyone.



Dan

Last edited by John Smith_inFL; 05-09-2020 at 02:25 PM. Reason: removed email
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post #15 of 15 Old 08-06-2020, 01:08 PM
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Thank you Min Peng!

Thought I'd give this a shot to replace the broken motor mounting plate on my Craftsman 113.298720 (I understand the 113. and 315. mounting plate to be the same). I asked the SawStop online chat technicians and the best they could give me was a solid "maybe". Guessing that they probably don't want to go advertising this or are concerned about liability should something unforeseen happen - can't blame them.

Yet to install, but have put the parts side by side and they are almost identical - just need a couple of set screws for the mounting pins. I don't foresee any issue with this part working as a replacement.

Am in Canada and as Sears is no more here, I was left with the only option of buying used off ebay where they are wanting ~$80 for the part plus another ~$60 for shipping. Shipping to Canada from SawStop was still more than is rational ($26 US), but a far cheaper option overall.


Really hope this thread helps someone else too.

Jared
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