BD

"Bob Davis"

18/04/2004 2:51 AM

Dust collector tune up

My dust collector is hardly six months old and it seemed like it was losing
its suck. I've been gradually adding more to the duct network and figured
I'd miscalculated the loss or something. The plastic bag was about 2/3 full
and I decided it was time to bite the bullet and empty it. I also took off
the big cartridge filter and cleaned out the dust cake. Wow, its amazing
how much dust this cartridge will hold.

After I put everything back together and tried it out, I was amazed. Its
like I added another horsepower to the capacity. I have a 4" topside
collector for my tablesaw. The old gale force is back and doing what I
originally designed it to do - suck up everything but the paint on the saw.

Bob


This topic has 13 replies

SK

Steve Knight

in reply to "Bob Davis" on 18/04/2004 2:51 AM

22/04/2004 1:51 AM



>> Do you use compressed air and blow air from the outside of the
>> cartridge filter (and through the wire mesh screen)? How big your
>> compressor is? I assume a small air compressor will not be able to
>> handle this task. Or do you use a tire-inflator to blow air?

right from the outside in just the opposite of the airflow. the more airflow the
faster the job will be. You don't want too much pressure though I would not use
over 100 psi. I have a cheap 5hp crapsmen compressor that works fine.
but if you have a smaller compressor it may just take longer. I wonder maybe a
shop vac would do it in reverse? I have not tried it.


--
Knight-Toolworks & Custom Planes
Custom made wooden planes at reasonable prices
See http://www.knight-toolworks.com For prices and ordering instructions.

JJ

JGS

in reply to "Bob Davis" on 18/04/2004 2:51 AM

18/04/2004 6:25 AM

Hi Bob,
I have a girlie calendar hanging about 10' away from the exhaust port of my
dust cyclone. When the cartridge filter is clean she dances wildly, when she
slows up I know it's time to clean the filter. Cheers, JG

Bob Davis wrote:

> My dust collector is hardly six months old and it seemed like it was losing
> its suck. I've been gradually adding more to the duct network and figured
> I'd miscalculated the loss or something. The plastic bag was about 2/3 full
> and I decided it was time to bite the bullet and empty it. I also took off
> the big cartridge filter and cleaned out the dust cake. Wow, its amazing
> how much dust this cartridge will hold.
>
> After I put everything back together and tried it out, I was amazed. Its
> like I added another horsepower to the capacity. I have a 4" topside
> collector for my tablesaw. The old gale force is back and doing what I
> originally designed it to do - suck up everything but the paint on the saw.
>
> Bob

GR

Gerald Ross

in reply to "Bob Davis" on 18/04/2004 2:51 AM

18/04/2004 12:59 PM

Bob Davis wrote:

> My dust collector is hardly six months old and it seemed like it was losing
> its suck. I've been gradually adding more to the duct network and figured
> I'd miscalculated the loss or something. The plastic bag was about 2/3 full
> and I decided it was time to bite the bullet and empty it. I also took off
> the big cartridge filter and cleaned out the dust cake. Wow, its amazing
> how much dust this cartridge will hold.
>
> After I put everything back together and tried it out, I was amazed. Its
> like I added another horsepower to the capacity. I have a 4" topside
> collector for my tablesaw. The old gale force is back and doing what I
> originally designed it to do - suck up everything but the paint on the saw.
>
> Bob
>
>
It pays to check the blower itself occasionally. Mine collects curly
shavings hooked around the vanes sometimes.

--

Gerald Ross, Cochran, GA
To reply add the numerals "13" before the "at"
...........................................
One good turn gets most of the blanket.




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Ba

B a r r y

in reply to "Bob Davis" on 18/04/2004 2:51 AM

18/04/2004 11:31 AM

On Sun, 18 Apr 2004 02:51:30 GMT, "Bob Davis"
<[email protected]> wrote:

>My dust collector is hardly six months old and it seemed like it was losing
>its suck.

Maybe you've got a female dust collector? <G>

Actually, you probably need to empty it, as someone else already
pointed out.

Barry

SK

Steve Knight

in reply to "Bob Davis" on 18/04/2004 2:51 AM

20/04/2004 5:27 PM



>I believe that the original poster is using a canister dust collector
>that also has a "handle" (just like mine). The fact that he needed to
>take down the filter cartridge to clean out the dust cake seems to
>suggest that the "handle" alone may not be good enough, right?
>

the handle would knock off the outside stuff but a air hose is really needed to
get the filter clean. You need to get the pores clean of dust or the airflow
gets too low.

--
Knight-Toolworks & Custom Planes
Custom made wooden planes at reasonable prices
See http://www.knight-toolworks.com For prices and ordering instructions.

Pn

Phisherman

in reply to "Bob Davis" on 18/04/2004 2:51 AM

19/04/2004 12:20 PM

The first thing I check is for a clog in the tubing when the DC seems
to bog in performance. Many times I find sticks blocking the way.
The felt bags get a 1/2" layer of fine sawdust on them, and I knock
that off but never wash them (per manufacturer's recommendations).
Over time, flex-type tubing will need replacing as more pin holes
appear. Another improvement is rewiring the DC for 220v for better
starts, smoother cooler running, and less power consumption.

jJ

[email protected] (Jay Chan)

in reply to "Bob Davis" on 18/04/2004 2:51 AM

19/04/2004 7:43 AM

> ... I also took off the big cartridge filter and cleaned out the
> dust cake...

How do you remove the dust cake from the cartridge filter? If I
remember this correctly, you are using a JET cansiter dust collector
that uses cartridge filter instead of a dust bag. I have recently
bought the same dust collector. I would like to learn from you before
the filter cartridge in my dust collector gets filled up.

Do you use compressed air and blow air from the outside of the
cartridge filter (and through the wire mesh screen)? How big your
compressor is? I assume a small air compressor will not be able to
handle this task. Or do you use a tire-inflator to blow air?

Thanks.

Jay Chan

jJ

[email protected] (Jay Chan)

in reply to "Bob Davis" on 18/04/2004 2:51 AM

20/04/2004 6:47 AM

> >How do you remove the dust cake from the cartridge filter?
>
> Isn't that what the "handles" are for? You should be able to move and
> beater or brush around the inside of the cartridge.

I believe that the original poster is using a canister dust collector
that also has a "handle" (just like mine). The fact that he needed to
take down the filter cartridge to clean out the dust cake seems to
suggest that the "handle" alone may not be good enough, right?

Hopefully, the original poster will help us with this.

Jay Chan

jJ

[email protected] (Jay Chan)

in reply to "Bob Davis" on 18/04/2004 2:51 AM

21/04/2004 9:33 AM

> the handle would knock off the outside stuff but a air hose is really needed > to get the filter clean. You need to get the pores clean of dust or the
> airflow gets too low.

Thanks for confirming what I think was happened to the original
poster.

Is this OK with you to help me with the following questions that I had
asked the original poster:

> Do you use compressed air and blow air from the outside of the
> cartridge filter (and through the wire mesh screen)? How big your
> compressor is? I assume a small air compressor will not be able to
> handle this task. Or do you use a tire-inflator to blow air?

Thanks.

Jay Chan

jJ

[email protected] (Jay Chan)

in reply to "Bob Davis" on 18/04/2004 2:51 AM

22/04/2004 9:34 AM

> right from the outside in just the opposite of the airflow. the more airflow
> the faster the job will be. You don't want too much pressure though I would
> not use over 100 psi. I have a cheap 5hp crapsmen compressor that works fine.
> but if you have a smaller compressor it may just take longer. I wonder maybe a
> shop vac would do it in reverse? I have not tried it.

Thanks for the useful info. I have a very small air compressor (1 HP
or 1.5 HP??). I will try it when I get enough dust built up in the
filter cartridge (It is absoluely clean right now).

Jay Chan

SK

Steve Knight

in reply to "Bob Davis" on 18/04/2004 2:51 AM

18/04/2004 6:46 PM



>You've just made an important discovery. I'm not quite sure why,
>but people who have no difficulty recognizing that their shop vac
>works best when empty frequently seem unable to grasp that their
>dust collector behaves the same way.

only if you have a cloth bag on bottom otherwise it won't matter. it's the
filter material that is clogged.

--
Knight-Toolworks & Custom Planes
Custom made wooden planes at reasonable prices
See http://www.knight-toolworks.com For prices and ordering instructions.

MD

Morris Dovey

in reply to "Bob Davis" on 18/04/2004 2:51 AM

17/04/2004 10:52 PM

Bob Davis wrote:

> My dust collector is hardly six months old and it seemed like
> it was losing its suck. I've been gradually adding more to
> the duct network and figured I'd miscalculated the loss or
> something. The plastic bag was about 2/3 full and I decided
> it was time to bite the bullet and empty it. I also took off
> the big cartridge filter and cleaned out the dust cake. Wow,
> its amazing how much dust this cartridge will hold.
>
> After I put everything back together and tried it out, I was
> amazed. Its like I added another horsepower to the capacity.
> I have a 4" topside collector for my tablesaw. The old gale
> force is back and doing what I originally designed it to do -
> suck up everything but the paint on the saw.

You've just made an important discovery. I'm not quite sure why,
but people who have no difficulty recognizing that their shop vac
works best when empty frequently seem unable to grasp that their
dust collector behaves the same way.

( If your shop vac is 2/3 full, then it's probably time to empty
that too :-)

--
Morris Dovey
DeSoto, Iowa USA

Ba

B a r r y

in reply to "Bob Davis" on 18/04/2004 2:51 AM

19/04/2004 11:48 PM

On 19 Apr 2004 07:43:59 -0700, [email protected] (Jay Chan) wrote:

>> ... I also took off the big cartridge filter and cleaned out the
>> dust cake...
>
>How do you remove the dust cake from the cartridge filter?

Isn't that what the "handles" are for? You should be able to move and
beater or brush around the inside of the cartridge.

Barry


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