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Ridgid R4511 table saw motor fix

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Forum topic by john1102 posted 01-31-2012 05:27 AM 8544 views 0 times favorited 27 replies Add to Favorites Watch
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john1102

60 posts in 2130 days


01-31-2012 05:27 AM

Topic tags/keywords: motor fix ridgid r4511

I turned on the tablesaw today and it runs and starts fine but it smells electrical burning and sounds different. Anyone knows what causes this, are there any motor adjustments?

Thanks hoping its not the motor windings.

John p.


27 replies so far

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William

9906 posts in 2304 days


#1 posted 01-31-2012 06:08 AM

I’d get around back and have a good look under it.
Remove the belt and try running the motor without the belt.
I have a TS3650. Mine once I thought the motor was going out for the same reasons as you. It turned out that the bolt holding the motor in place when tilted for beveled cuts had backed out. This cause the motor to slide over and the belt had ridden off the pulley on the arbor end. With it in this position, the belt was rubbing the cabinet and causing a smell much like electrical problems.
I tightened the bolt back up, put the belt back on the pulley correctly, and haven’t had any problems with it since.

-- http://wddsrfinewoodworks.blogspot.com/

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john1102

60 posts in 2130 days


#2 posted 01-31-2012 06:17 AM

I will remove the belt and turn on the motor to help eliminate sources of the problem, i have a meter i may clamp to the wires to measure the load pulls also. I am hoping for a less expensive fix, if its the motor it may not be worth replacing. I will have to cross my fingers.

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William

9906 posts in 2304 days


#3 posted 01-31-2012 07:03 AM

I disagree that about it being to expensive to fix if the motor is the problem. Motors aren’t nearly as high priced as a new saw. It doesn’t necessarily have to be a Ridgid motor on it is it has to be replaced. You could probably even go for more horsepower with a new motor way cheaper than you could get a comparable saw.

-- http://wddsrfinewoodworks.blogspot.com/

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Brandon

4151 posts in 2413 days


#4 posted 01-31-2012 07:08 AM

Did you purchase the saw new or used? If new, it’s likely under warranty. Either way, I agree with William, if you need to purchase a new motor that’s much cheaper than a new saw; plus you just made that nice mobile new base for the saw. :-)

-- "hold fast to that which is good"

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dbhost

5604 posts in 2694 days


#5 posted 01-31-2012 07:35 AM

Hopefully you bought that saw new…. Should be under warranty…

-- My workshop blog can be found at http://daves-workshop.blogspot.com

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knotscott

7210 posts in 2838 days


#6 posted 01-31-2012 04:16 PM

Could the belt rubbing, could be a bad capacitor (easy and cheap to fix), could be motor windings, could be a switch problem. If it’s not obviously the belt, pull the cans off the caps and take a look (outside of the motor housing)...they’d usually look exploded, blackened, or oozing if bad.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

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john1102

60 posts in 2130 days


#7 posted 01-31-2012 06:02 PM

I have priced a comparable leeson 1.5 HP motor and it is $288 shipped and if I was to replace the motor I would probably upgrade to a 2 or 2.5HP motor that isn’t that much more. I built a custom mobile base for this saw recently and am in the process of modifying the dust collection so I am inclined to worst-case scenario replace the motor. I was also looking at upgrading the fence since it isn’t that stout. When I add all this up I just wonder about total invested cost.

I bought the saw on CL about 1 year ago ($300) at that time the saw was probably 1-2 years old. I am going to call Ridgid today to check on if it still falls under the 3 year warranty.

Thanks

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john1102

60 posts in 2130 days


#8 posted 01-31-2012 08:18 PM

Its not under warranty so i will start checking amperage pull and load amperage. Run capacitor and start capacitor and will go from there, and the belt and also the switch.

View William's profile

William

9906 posts in 2304 days


#9 posted 02-01-2012 01:27 AM

As for motor size, I may be wrong about this, but would like to offer my personal opinion.
My TS3650 has a 1.5 motor. I recently aquired and antique Craftsman ten inch table saw that is in a nice roll around cabinet with a one horse motor. I have to say that with side by side testing, the Craftsman saw outcuts the Ridgid, hands down, with a smaller motor. No, let me say lesser, because the one horse motor is actually about one and a half times the size of the one on the Ridgid.
I have a theory on this.
I honestly believe that a one horse motor made back then was actually one horse. I am not so certain about how accurately the power is measured in modern motors. I say this because I have seen with my own eyes these older, lesser motors, outperform newer, higher capacity motors time and time again.

So how about an older motor?
I don’t have the know how on them. It is my understanding though that they are not difficult to rebuild.
From reading your responses, I get the idea that you already know a little about electricity and motors. KTMM, the fellow Lumberjerk I purchased the Craftsman saw from rebuilt the motor on mine. He may be able to give you some suggestions.

This post is what I got with the Craftsman saw. Go to the link there and you can see photos of the rebuild of it, including the motor. The motor rebuild is on pages 5,6, and 7 of the photo gallery after you go to the link.

-- http://wddsrfinewoodworks.blogspot.com/

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john1102

60 posts in 2130 days


#10 posted 02-01-2012 06:23 AM

Well i took off the two capacitor covers. The run capacitator was bad, it is fried and was starting to melt a little where the wire popped out. Should be an easy fix as long as thats all thats wrong but wont know till new capacitor arrives.

John

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john1102

60 posts in 2130 days


#11 posted 02-05-2012 05:22 AM

Got new capacitor installed this morning, it’s running like a champ again. Got the part shipped to my door for $27, that saved me a bunch.

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William

9906 posts in 2304 days


#12 posted 02-05-2012 05:24 AM

Glad to hear you have it up and purring again.

-- http://wddsrfinewoodworks.blogspot.com/

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toolie

2023 posts in 2091 days


#13 posted 02-05-2012 03:46 PM

john1102…....so you paid $27 for a part that would have been replaced for you without cost had your 4511 been registered for the LSA?

-- there's a solution to every problem.......you just have to be willing to find it.

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William

9906 posts in 2304 days


#14 posted 02-05-2012 03:53 PM

He couldn’t have had a lifetime service warranty. This is only available to original buyers of Ridgid tools that bought them at Home Depot and registered them within ninety days. Also, they are not transferrable if you sell the tool.
He stated in response #7 that the saw was one to two years old when he purchased it used.

-- http://wddsrfinewoodworks.blogspot.com/

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knotscott

7210 posts in 2838 days


#15 posted 02-05-2012 03:54 PM

Good to hear. For future reference and for others facing similar repairs, you could likely source the cap yourself for much less….the capacitance value should be close but doesn’t have to be exact, the voltage should be at least what the original was, and it needs to physically fit in the can, but otherwise any cap fitting that criteria should work. Thanks for posting followup.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

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