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Reply by JayT

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Posted on Craftsman 113 Motor Upgrade 1.5hp or 2hp

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JayT

6270 posts in 2689 days


#1 posted 08-04-2015 07:23 PM

Comparing to your Makita is apples to oranges. The Makita was a jobsite saw with a universal motor, the Craftsman has an induction motor. Universal motors make HP by running at high speeds with low torque. An induction motor will have more torque and a lower speed. (BTW, there is no way your Makita was making 2HP. The most you can expect with a 15A motor is 1-1/2HP)

So, couple of questions. There were a ton of different 113 models put out. Which one do you have and what motor is on it now?

What is the new blade on the Craftsman? A good quality, thin kerf ripping blade will make the most of the saw’s performance. A lesser quality or full kerf blade will struggle with thicker hardwoods, as will one with too many teeth. For ripping, I use a 24 tooth Freud Diablo on my 113 with no real problems. Thicker hardwood requires slowing the feed rate, but it’ll still do the work.

Is the .005 alignment of the fence in or out? In other words, the back of the fence should be parallel to slightly farther from the blade to prevent pinching. If the fence is closer to the blade in the back, even by .005, that’s enough to pinch and bog down. Personally that’s about twice the amount I would want on my saw, but as long as its the right direction, won’t cause an issue.

Did you check the pulley alignment and belt? If the pulleys are out of line with each other, that will eat up quite a bit of power.

If you do replace the motor, I’d be very hesitant to go with something larger and heavier than stock. I don’t think the construction of the saw is really up to it. A 1-1/2HP motor should do anything you need with a good blade.

-- https://www.jtplaneworks.com - In theory, there is no difference between theory and practice. In practice, there is.


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