Rpm on table saw

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Forum topic by mojomunant posted 08-03-2017 09:04 PM 514 views 0 times favorited 7 replies Add to Favorites Watch
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2 posts in 624 days

08-03-2017 09:04 PM

The rpm’s on my Porter Cable PCB 220ts Table saw have seems to have picked up considerately on the last couple of times I have used it .Any Ideas what causes this. Thanks

7 replies so far

View knotscott's profile


8267 posts in 3703 days

#1 posted 08-03-2017 09:22 PM

Any chance there’s 220v going to it?

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

View bbasiaga's profile


1243 posts in 2323 days

#2 posted 08-03-2017 10:57 PM

How can you tell its spinning faster?

If its got an induction motor, the only thing I can think of that can change the speed of rotation would be the frequency of the power feeding it.

I suppose a belt could have been slipping before, and now is not slipping (if it is belt driven).


-- Part of engineering is to know when to put your calculator down and pick up your tools.

View bondogaposis's profile


5323 posts in 2679 days

#3 posted 08-03-2017 11:01 PM

Check your belts and pulleys.

-- Bondo Gaposis

View Woodknack's profile


12726 posts in 2708 days

#4 posted 08-04-2017 12:00 AM

Troubleshooting 101: What changed? Did you change any wiring, or anything electrical?

-- Rick M,

View Fresch's profile


412 posts in 2248 days

#5 posted 08-04-2017 12:35 AM

If it was wired for 120v and now running on 240v doubt it ran for long.
Did you but a new blade on?

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1687 posts in 3193 days

#6 posted 08-04-2017 12:46 AM

I think this is the job site version that has a universal motor.

The question is why do you think it is running faster? Is it the free RPM sound?

View mojomunant's profile


2 posts in 624 days

#7 posted 08-04-2017 01:57 PM

.Its 110v no change in wiring,same blade,I don’t know that its running faster but it sure sound like it.I have it mounted in a rolling shop table.I will have to dismantel and check it out further.I though this might be a common problem but probably not. Thanks everyone for all the responses

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