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Upgrading Sawstop Motor

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Blog entry by Manitario posted 03-09-2014 07:13 PM 5000 reads 0 times favorited 11 comments Add to Favorites Watch

I have a 1.75hp PCS Sawstop. I considered the 3hp version initially, but then balked at the extra cost and reasoned that 1.75hp would be more than enough. Fast forward two years and most of my woodworking involves thick 2” slabs…even with a sharp, thin kerf blade the motor really struggles. So, I called Sawstop to see if it was possible to upgrade the motor rather than have to buy a whole new saw. They were very helpful and explained that the 1.75 and 3hp PCS saws are the same, just with different motors and switch boxes. So yes, for $550 I could buy the motor and switch assembly and upgrade (which is basically the price difference between the two saws). I’d looked on the web to see if someone else had done the switch, but couldn’t find anything. Swapping motors was easy and took just over an hour; I documented the process in case anyone else does it.

Remove gas shock (top and bottom bolt):

Remove motor by removing mount bolts (19mm socket) and lift free from drive belt


Install new gas shock (easier to do with motor out)
Remove switch assembly and control box:

control box bolts:

Open switch assembly by removing seven screws

Then unclip white plug from old 120V control box and clip in plug from new control box. Reassemble and reinstall switch and control box onto saw

Reinstall new motor (may need someone to help hold the motor while you tighten the bolts, it’s heavy!) Make sure motor pulley lines up on drive belt. Drive belt tension: it should deflect less than 1/4” with finger pressure.

Feed motor power wire through opening in saw. Wire motor.

You’re now done, enjoy 3hp!

-- Sometimes the creative process requires foul language. -- Charles Neil



11 comments so far

View Mean_Dean's profile

Mean_Dean

5042 posts in 2607 days


#1 posted 03-10-2014 12:54 AM

All-in-all, looks like it went pretty easily! Gotta love it when that happens!

-- Dean

View Rob's profile

Rob

704 posts in 2531 days


#2 posted 05-21-2014 08:50 PM

Not bad! In the end you do end up paying a little extra ($120) but you end up with a spare 1.75hp motor. This is a great option for anyone who isn’t sure if they need the extra horsepower up front.

-- Ask an expert or be the expert - http://woodworking.stackexchange.com

View Manitario's profile

Manitario

2397 posts in 2343 days


#3 posted 05-22-2014 10:38 AM

Thanks Rob; I wasn’t sure I needed 3hp when I bought the saw, but it was nice to be able to do such a simple upgrade when I needed it.

-- Sometimes the creative process requires foul language. -- Charles Neil

View a1Jim's profile

a1Jim

115201 posts in 3037 days


#4 posted 05-22-2014 03:06 PM

Good thinking,well done.

-- http://artisticwoodstudio.com Custom furniture

View RustyHacksaw's profile

RustyHacksaw

82 posts in 724 days


#5 posted 04-21-2015 04:23 PM

Did you find a use for, or did you find a way to recoup some of the cost by selling your old motor? Would there be a market for it?

View Manitario's profile

Manitario

2397 posts in 2343 days


#6 posted 04-23-2015 06:08 AM

I kept the motor, I’m sure that someday I’ll find a use for it, I’‘m not sure there’s a big market for a used 1.75 hp Sawstop motor.

-- Sometimes the creative process requires foul language. -- Charles Neil

View Alan72's profile

Alan72

187 posts in 1493 days


#7 posted 07-18-2015 03:23 AM

Are you glad that you changed over to the 3hp motor? I have the same saw and was toying around with the same idea.

View Manitario's profile

Manitario

2397 posts in 2343 days


#8 posted 07-18-2015 03:52 PM

Alan; yes after a year of use, I’m glad that I’ve upgraded. The saw used to regularly have trouble with 8/4 stock, now I can cut pretty much any thickness of wood with ease.

-- Sometimes the creative process requires foul language. -- Charles Neil

View MikeNelson's profile

MikeNelson

2 posts in 364 days


#9 posted 12-05-2015 02:03 AM

I am making this same switch, in case anyone is interested in purchasing a 1.75 HP motor and 110 v wiring.

View Hewy's profile

Hewy

26 posts in 2147 days


#10 posted 12-06-2015 01:12 AM

I have the 1.75 HP motor which I run on 110V volts. I have found that that the saw runs the best if
you run a dedicated #12 wire, 20 amp circuit directly to the saw. When I first hooked up my saw I
plugged it into an existing 20 amp wall plug, but this circuit had other things also connect such as lights
and a radio, which lowers the available amps to the saw motor. After I made this change I cut 8/4 red oak with a full kerf 40 tooth Forrest blade with no trouble. The other thing to consider is changing the motor and switch to run the saw on 220 volts . I know this is a option from Saw Stop. The saw still has the same 1.75 HP but uses less amps.

Hewy

View MikeNelson's profile

MikeNelson

2 posts in 364 days


#11 posted 12-22-2015 05:00 PM

I have made the conversion and I agree with Manitario, I did experience a bit of bog down in the past, but not now! Also, it was pretty straight forward, a small thing, when you order parts, the pulley comes installed on the motor, so no need to order a pulley, set screw or key.

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