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Powermatic 66 won't run after storage

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Forum topic by Hippockets posted 376 days ago 957 views 0 times favorited 19 replies Add to Favorites Watch
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Hippockets

83 posts in 1606 days


376 days ago

I have a Powermatic 66, 220V single phase 5 hp. It has been in storage 7 to 8 years. I plugged it in to a tested outlet and absolutely nothing happened when I hit the ON button. No hum, no buzz, no breaker shut off. Where do I start to check for the problem?

-- Bruce, Arnold MD bjordan443@aol.com


19 replies so far

View JustJoe's profile

JustJoe

1554 posts in 538 days


#1 posted 376 days ago

I’d check the switch itself.

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shampeon

1069 posts in 683 days


#2 posted 376 days ago

Yeah, I agree with JustJoe. If you’ve got a multimeter you can check for connectivity. A little contact cleaner spray wouldn’t be a bad investment, from Radio Shack or the like.

-- ian | "You can't stop what's coming. It ain't all waiting on you. That's vanity."

View JJohnston's profile

JJohnston

1572 posts in 1791 days


#3 posted 376 days ago

Obvious question here – does everything turn freely?

-- The whole aim of practical politics is to keep the populace alarmed (and hence clamorous to be led to safety) by menacing it with an endless series of hobgoblins, all of them imaginary. - H.L. Mencken

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Nicky

628 posts in 2591 days


#4 posted 376 days ago

As mentioned, checking the switch is a good starting point.

Other things….

Check for a good connection from your plug to the switch

You said the saw has been sitting in storage, so I’d look at the motor. Check the centrifugal switch contacts.

I’m sure its a simple connection or contact problem.

-- Nicky

View huff's profile

huff

2721 posts in 1784 days


#5 posted 376 days ago

Simply bypass the switch and wire the motor to see if it starts; if it does, then the swithch or plug is the problem, if it doesn’t, the start capacitor could be bad.

I had the start capacitor go bad a couple times over the years with my 5hp Powermatic. (over a 25 year period).

-- John @ http://www.thehuffordfurnituregroup.com

View Fred Hargis's profile

Fred Hargis

1475 posts in 993 days


#6 posted 376 days ago

I think I would look the wiring over to see if any critters chewed on it while in storage, then move on to checking the other stuff. Bypassing the switch to see if it runs is a good quick way to find out where the problem is.

-- I long for the days when Coke was a cola, and a joint was a bad place to be (Merle Haggard)

View Fettler's profile

Fettler

78 posts in 496 days


#7 posted 376 days ago

check the breaker =)

-- --Rob, Seattle, WA

View felkadelic's profile

felkadelic

188 posts in 1039 days


#8 posted 376 days ago

First thing I thought of was rodent damage. Hope that’s not the case.

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Jimbo4

1076 posts in 1262 days


#9 posted 375 days ago

Send it to me – I’ll fix it.

-- BELT SANDER: Used for making rectangular gouges in wood.

View GT350's profile

GT350

265 posts in 481 days


#10 posted 375 days ago

I would check the breaker like Fettler said, then get a voltmeter and check to make sure you have 220v at the outlet. I always start at the beginning,and easiest place to check, first. Next take the voltmeter and see if you have voltage at the switch and move on down the line. Oh wait, I just reread your post and you said it was a tested outlet so disregard the first part, although it may not hurt to recheck just to make sure it didn’t blow the breaker and you didn’t realize it.
Mike

View helluvawreck's profile

helluvawreck

14580 posts in 1366 days


#11 posted 375 days ago

Maybe a little corrosion or dust in or on the contacts (motor starter, auxillary contacts, and and/or switches).

helluvawreck aka Charles
http://woodworkingexpo.wordpress.com

-- If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away. Henry David Thoreau

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waho6o9

4443 posts in 1076 days


#12 posted 375 days ago

+1 on the capacitor being the problem

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MrRon

2393 posts in 1743 days


#13 posted 375 days ago

This may sound like a dumb question, but did the saw run before being put into storage? If it did, then I would suspect corrosion on the contact points of the magnetic starter or even a build-up of cobwebs in and around contacts. A meter should find the problem.

View Loren's profile

Loren

6742 posts in 2147 days


#14 posted 375 days ago

It’s pretty easy to bypass a switch to test a motor. Take
the belts off, bypass the switch and test the motor
that way.

Sometimes a motor that’s been sitting for a long time
can’t self-start but if you give it a spin and run
it for awhile it will recover its ability to start under load.

Bad capacitors are a likely culprit as well.

View REO's profile

REO

541 posts in 573 days


#15 posted 374 days ago

if it was a bad cap it would hum. if the start winding centrifugal switch is bad it will hum also but not start up. if it has a contactor and it doesent click when you hit the switch it is very likely the contacts on the start button. if you get it to start when you push the button but it stops when you let go of the button then the stop switch contacts are fouled also. You said you had tested the outlet so that eliminates the breaker or voltage at the outlet.

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