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Forum topic by DonJ posted 537 days ago 660 views 0 times favorited 11 replies Add to Favorites Watch
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DonJ

234 posts in 2122 days


537 days ago

I was just out in the shop…turned on my 3hp Griz dust collection system and I heard a pop, turned around and saw some sparks and smoke coming out of the on/off control panel. Bummer!!

-- Don, San Antonio, TX


11 replies so far

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Gary

6955 posts in 2028 days


#1 posted 537 days ago

Bummer for sure. Hope it can be an eazy fix

-- Gary, DeKalb Texas only 4 miles from the mill

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SCOTSMAN

5241 posts in 2180 days


#2 posted 537 days ago

Make sure it’s all clean, and there’s no dust in the switchgear there.I suggest you take it apart and make sure a build up of swarf-wood-dust might have shorted it it has been known. Alistair

-- excuse my typing as I have a form of parkinsons disease

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RonInOhio

720 posts in 1459 days


#3 posted 537 days ago

And ????

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Dallas

2854 posts in 1082 days


#4 posted 537 days ago

look for fricasseed critters! lol.

We have a 3 HP/3Ph exhaust fan in the boss’s big shop up in the rafters.

The switch gear and power box are down below on a big panel.

One day I went in and flipped the power switch and a great cloud of BBQ smelling smoke emerged along with mounds of exciting sparks and strange thumping noises.

It turns out a big chameleon had crawled up in the switch box and a bird flew in to get it. As I flipped the power the bird, chameleon and at least 2 of the contacts made Rond- aye – Vous.

Poof!

-- Improvise.... Adapt...... Overcome!

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DonJ

234 posts in 2122 days


#5 posted 537 days ago

Well, I opened up the switch box…no critters or bugs, nor anything else in there that I could see. It appeared to be pretty well insulated from outside dust, etc. At any rate, the large white wire from the power source (wall outlet) was burned in two where it was connected to the thingy-majig. As is obvious, I’m not mechanically inclined. The impeller was spinning after all power was off, so hopefully there is no issue with a frozen shank or something like that. I’m assuming it would not be a wise idea to simply replace the switch box without having someone check out the motor and other aspects of the unit? I would hate to replace it and it do the same thing again. Any other thoughts? Thanks for the interest.

-- Don, San Antonio, TX

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JoeinGa

3086 posts in 602 days


#6 posted 537 days ago

Now you KNOW you’re not supposed to let the smoke out of them wires!

Hope it’s an easy fix!

-- Perform A Random Act Of Kindness Today ... Pay It Forward

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RonInOhio

720 posts in 1459 days


#7 posted 537 days ago

Just curious what is the load limit on that circuit ? And current draw of the DC ? Good idea to have it checked out.

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brunob

2275 posts in 2764 days


#8 posted 537 days ago

Since the white wire is burned and it’s supposed to be neutral, my guess is that is came in contact with one of the hot wires or contacts.

-- Bruce from Central New York...now, if you'll pardon me, I have some sawdust to make.

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Richard Miller

104 posts in 565 days


#9 posted 537 days ago

If the white wire is burned off check to see if it was grounded out . A 3hp motor should be on 220 volts so that makes the white wire one leg of the 220 volt system.

-- Dick F,Burg Iowa

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Don W

14574 posts in 1162 days


#10 posted 537 days ago

Warning: no pyrotechnics in the woodshop.

-- Master hand plane hoarder. - http://timetestedtools.com

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exelectrician

1458 posts in 1022 days


#11 posted 537 days ago

The white wire, Hot in this case, might have been trapped between the cover and the box. After a while the insulation gave way and it shorted to ground burning the wire off.
This is a common fault. To fix use a wire nut to join the white ends together.

-- Love thy neighbour as thyself

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