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Older Craftsman 10' Table saw help

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Forum topic by movinonthrough posted 04-12-2017 10:49 PM 1093 views 0 times favorited 14 replies Add to Favorites Watch
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movinonthrough

9 posts in 971 days


04-12-2017 10:49 PM

Topic tags/keywords: tablesaw

This is my first post no the forums here and I thought I would join to get some advice on some projects I have going right now. I am not new to DIY and working some small furniture projects but its been a few years and I am really looking forward to working in the garage a lot more. I hope this is the right way to go about soliciting advice as I did not see any powertool related sub forums, if not feel free to direct me to the correct channel.

Firstly, I just purchased a older Craftsman that seems to be in really good shape. I would like to get this thing in top top shape and I am noticing some things that I know need attention but I haven’t been able to get the right info on YouTube or other channels.

First thing I would like to address is the motor and its mount. The motor on it seems to have been replaced with a GE 1 hp motor that seems to be running fine but I went to put a new belt on it today and when I ran it just before the spindle or bushing on the arbor of the motor flew off. I noticed when i put it back on and tightened it down with there is some play from racking left and right on the entire motor from coming from the bottom of pin that the motor and housing moves on.

There is a small screw with a washer that I replaced that sits between sliding channel im assuming to tighten the belt. Am I supposed to tighten that screw down or keep it loose for moving the blade up and down?

When it is tight it does not fix that the motor is slightly twisted and the belt is just noticeably slightly right from the mount that twists. If you can see in the picture from the top down of the motor and mounting bracket, there is a larger space on one side.

Thank you for the consideration on this topic and I appreciate any comments.


14 replies so far

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bandit571

24110 posts in 3245 days


#1 posted 04-13-2017 12:32 AM

I remember I had to just snug that bolt up….but, after all the use the saw went through, that bolt wandered off, never to return…The weight of the motor supplies all the tension needed. The 113 saw I used to have, was upgraded to a dual belt drive. Double v belts.

Might try moving the motor a tad in either direction on the mounting, to find a better balance point? As for that bolt…meh, never found much good in it.

-- A Planer? I'M the planer, this is what I use

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movinonthrough

9 posts in 971 days


#2 posted 04-13-2017 12:41 AM

The dual belt drive looks nice. Thank you for the response here. The issue I am having is that I can move the motor in a direction in a lateral plane, however there is rotation that causes the motor to twist just a little bit and in the picture above it is just barely visible.

I am wondering how much of an issue that is. it takes forever for the saw to slow down and when its slowing i see the belt start to vibrate a bit and wobbles a bit

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movinonthrough

9 posts in 971 days


#3 posted 04-13-2017 01:00 AM

This is a better angle

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MrUnix

7531 posts in 2761 days


#4 posted 04-13-2017 01:05 AM

Got a model #? Grab the manual – it will explain how to mount and align the motor properly.
Manuals can be found at the vintagemachinery site here.

Cheers,
Brad

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

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tool_junkie

327 posts in 3091 days


#5 posted 04-13-2017 01:06 AM

As bandit 571 suggested, keep the screw snug so that it still allows for the motor to swing freely as the blade is raised and lowered because tension on the belt is provided by the motor’s weight.

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movinonthrough

9 posts in 971 days


#6 posted 04-13-2017 02:19 AM

Thank you both for the responses. I have read the manual from cover to cover and there is no mention of the solution to adjust the motor in this case. that screw is binding occasionally because of this issue the slot the screw goes in from the metal wall does not line up parallell to the mount because of this slight rotation I have been asking about.

Thank you both for the response.

View Mainiac Matt 's profile

Mainiac Matt

9374 posts in 2890 days


#7 posted 04-13-2017 02:44 AM

My Craftsman 113 had a spring in between the motor plate and the mounting plate, so the belt was tensioned by both the weight of the motor and the compression of the spring.

Not sure about your alignment concerns, but what’s important is that the plane of the motor pulley should be parallel to the plane of the pulley on the arbor.

Your saw was retro-fit with a Harbor Freight segmented belt. It looks a little long to me. You might want to remove a link or two so your not on the extreme edge of the range of motion of the motor swing.

-- Matt -- I yam what I yam and that's all what I yam

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movinonthrough

9 posts in 971 days


#8 posted 04-13-2017 02:55 AM

I read in the manual there should be a spring but I don’t know what function it has or if it is supposed to help with this issue. With respect to the longer belt, in the video here i just took describing the issue, you can see the belt is too short? its at the end of the range of the slot for that screw and the motor will not swing back anymore without the belt being lengthened.

<iframe src=”https://www.youtube.com/embed/__1V0taIzeE” frameborder=”0” height=”315” width=”560”></iframe>

https://youtu.be/__1V0taIzeE

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movinonthrough

9 posts in 971 days


#9 posted 04-13-2017 02:57 AM

in the video i meant too short for the belt.

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movinonthrough

9 posts in 971 days


#10 posted 04-13-2017 03:01 AM

my attempt to embed a video has failed.

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bandit571

24110 posts in 3245 days


#11 posted 04-13-2017 10:27 PM

Pulley on arbor is out farther than the one on the motor….tap the arbor pulley in toward the saw blade a hair. Lay a straight edge into both pulleys ( without the belt on) move the arbor pulley until the straight edge say both pulleys are line up straight. Being out of alignment just a hair like that, will cause wear to the belt, and make the belt jump off a pulley. It will also cause a bit of vibration, too. Those pulleys should also have two set screws in them, second one locks the first one in place. Otherwise, the pulley will soon become loose, and slide out.

-- A Planer? I'M the planer, this is what I use

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movinonthrough

9 posts in 971 days


#12 posted 04-13-2017 11:15 PM

Bandit thank you for the response. These pulleys have one set screw hole in them. Any good ideas where to replace them with 2 set screw pulleys?

If i move the the pulley farther on the arbor it does not fix the problem because the pulley is aligned with the arbor and motor. The motor mount has play in it as you can see in the video and that is what is causing the misalignment. I can move the pulley and the twist still exists. It most certainly is coming from the pin on the bottom of the motor mount that holds the motor and allows it to rotate when the blade is moved. The hole the pin goes in is the same size on both sides however the left side moves likely because the same force is not being applied to the side without the pulley and belt.

I dont want to run this thing with any more vibration or wear and tear than is optimal.

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bandit571

24110 posts in 3245 days


#13 posted 04-13-2017 11:53 PM

The two set screws are stacked in the single hole…..

Two more views, of the old saw..

Not sure IF you can enlarge either of these. I ran this saw from the late 1980s ( bought it new) up to about 6 years ago….Motor upgrade was due to the original trunion cracking. Replaced a lot of other parts, went from 2 wings to 4 wings.

Didn’t that pin have a couple washers on it? might look to see IF there is a groove on the pin for them. Not really “washers” more like a snap ring.

I sold my 113 a while back, so unable to go out and look at mine.

-- A Planer? I'M the planer, this is what I use

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movinonthrough

9 posts in 971 days


#14 posted 04-14-2017 12:23 AM

Ok, I see exactly what you are talking about and ill make another video because it will be easier later tonight. The pin has two groves for the stoppers, they are spaced far enough apart that they don’t limit movement though. Funny you say that because I just tried stacking about 8 washers on eihter side but i ran out of washers. That may be a solution.

I really appreciate all the help Bandit.

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