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Delta dust collector model 50 -850

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Forum topic by Eloyd posted 10-12-2016 06:25 AM 245 views 0 times favorited 5 replies Add to Favorites Watch
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Eloyd

10 posts in 860 days


10-12-2016 06:25 AM

I have the Delta model 50 – 850 dust collector. I bought it used, and have had no trouble with it for much of the time I have owned it. However, now when I use it, very soon it blows the collector bags apart and dust blows EVERYWHERE until I get to the switch to turn it off. At first I thought that I was allowing the bottom bag to get too full of wood dust and maybe that was creating too much back pressure. So I started emptying it when it was about 1/3 full. No luck. Then I made the clamp band tighter thinking it was too loose. No luck. I don’t know what to think, or do now. I am currently not using it and rely on dust masks. I would sure like to start using it again. I have thought of selling it, and buying another dust collector as there are many in the woodworking market. Can anyone help??

-- Eloyd


5 replies so far

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Woodchuck2010

513 posts in 325 days


#1 posted 10-12-2016 12:43 PM

Very strange. I’m not sure why its doing that, but a way to possibly make it workable is to install a blast gate and partially close the gate until it doesn’t blow you bag apart. It doesn’t solve your problem, but works around it a little. Obviously air flow is restricted this way. Not ideal.

-- Chuck, Michigan,

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bondogaposis

4036 posts in 1818 days


#2 posted 10-12-2016 12:55 PM

Your filter bag is plugged up with dust. The air has to go somewhere and it is not getting through the filter bag. Knock the dust out of the bag and see if that helps. I think they are supposed to be washable.

-- Bondo Gaposis

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Rick Dennington

5182 posts in 2661 days


#3 posted 10-12-2016 01:33 PM

Eloyd,

I have a Delta 50-850 that I bought new in 1990…..I’ve have not had a single problem with it in all those years. A few years ago I bought a Wynn filter to replace the top bag, and it came with 3 plastic bags to replace the cloth filter bag on the bottom…But… I went one step further, and built a doughnut for the Wynn to sit on….it’s clamped underneath to hold it in place. The doughnut is made of 3/4 ” plywood, and I cut a groove on the underside and lined it with a rubber sealer to keep it from leaking dust out…..The filter, along with the 3 millimeter heavy-duty bags made a vast improvement in the filtration, and it doesn’t leak. Best thing I ever did for the old gal….I have a few pictures of the d.c., so it might give you an idea of how to fix your problem….I’ve helped a couple of other guys with this problem, also….

-- At my age, an "all--nighter" is not having to get up and pee...!!!

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Eloyd

10 posts in 860 days


#4 posted 10-14-2016 05:31 AM

Rick, the clamps on the underside, is it to hold the wynn?, or the whole assembly (donut and all)? Also the rubber seal, is that the same dia. as the metal bottom piece so the bottom fits into the groove with rubber seal?

-- Eloyd

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Rick Dennington

5182 posts in 2661 days


#5 posted 10-14-2016 05:58 PM

Hello Eloyd,

Those are some good questions…..No, the small clamps are just to hold the doughnut down on the basin of the d.c. I routed a 3/8’ wide x 3/8” deep groove on the underside so it would sit down on top of the basin rim, and the hole is the same size as the Wynn opening to drop all the dust and chips down in the bag….The filter has a rubber seal on it from the factory, and it just sits on top of the doughnut. It’s heavy enough that gravity keeps it from moving. You could clamp it down if you like. If I remember right, the doughnut is about 20” round, or is 10” in diameter…..I think I used a 1/2” rubber window seal w/ a sticky back to line the groove in the doughnut.

-- At my age, an "all--nighter" is not having to get up and pee...!!!

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