Upfront - I own a Jet supersaw and I like it a lot.
Now one of the most troubling things about this saw is the apparent number
of people who have had problems with the timing belt breaking. Its an 8
groove "Poly V-belt". I spoke to a Jet tech rep today. He readily
acknowledge that they had had problems, mostly in the early model
deliveries. "We had a rash of belts breaking, but it was sporadic". He
said there were two things contributing to failures
1. Someone at the factory was setting the belt too tight and they would fail
when the blade was raised up high.
2. Sawdust may get into the belt and cause premature failure.
He recommended inspection of the belt periodically to see if there is any
sawdust buildup. If so, use a toothbrush to clean it out. He also
recommended the use of a dust collector.
Bob
"Bob Davis" <[email protected]> wrote in message
news:[email protected]...
>
>
> 1. Someone at the factory was setting the belt too tight and they would
fail
> when the blade was raised up high.
> 2. Sawdust may get into the belt and cause premature failure.
Thanks Bob...
#2 is kind'a ironic - as I can guarantee that sawdust sure as heck will get
into the belt.... :)
And I do use a DC.
My nickel says - SuperSaw owners should heed the Ounce of Prevention. As I
found replacement very difficult. Those set screws are awful to loosen. All
in all, the replacement process is intrusive, lengthy and traumatic for a
newbie.
"Jim Giblin" <[email protected]> wrote in message
news:[email protected]...
> I also have a SuperSaw and have it connected to a Delta 50-850 duct
> collector. I question the efficiency of the dust collection design. When
I
> do a large project, considerable saw dust accumulates inside the saw's
> enclosure. It is as if the holes in the bottom of the enclosure are too
few
> or too small to allow the dust to get sucked into the lower compartment
that
> connects to the dust collector. I estimate that only about half of the
> dust that gets created, gets sucked directly into the dust collector. The
> good news is that the dust is at least contained and it is a simple
process
> to whisk broom the accumulated dust onto the area that has the holes. Do
> cabinet saws have a similar dust collection design? Do cabinet saw
require
> much manual clean-up effort?
>
>
<SNIP>
I think that I get only about 30% - 40% of the dust from my Unisaw. I use a
Penn State dust collector, that they claim has a 2.5 Hp. motor, and a 4"
line running directly to the saw. I had better luck when I had additional
dust collection from my Biesmeyer overhead blade guard but still not
anywhere near 100%.
Bob McBreen
> > cabinet saws have a similar dust collection design? Do cabinet saw
> require
> > much manual clean-up effort?
> >
> >
> <SNIP>
>
======================
Yes they do.... I pull the motor cover off my saw at least every 6 months
and vaccum the inside out...
HOWEVER
I do think that my Dust Collector does catch a pretty high percentage of the
SMALL particles that my screw up my luings etc...the stuff in the bottom of
the Saw IS LARGE STUFF...that was never suspended in the air in the first
place..
Bob
I believe all table saws have a resident layer of dust build up, no matter
who good the dust collection.
On mine, the level of the dust stabililzes and does not go any higher. Right
now I've a 2 hp Jet collector hooked to the cabinet through a 3 1/2 foot
hose.
What is much more intriguing to me is getting the dust above the table. If
you've followed any of my posts on this, you know that I'm after it with a
vengeance. I recently came up with a blade guard design that I am pretty
excited about. Its got an "articulating front piece" that drops down just
before the blade exits the wood when ripping or cross cutting. This helps
close in the guard at the point where a gob of dust breaks loose. My tests
show this extra little piece almost totally eliminates dust above the saw,
if you have a decent blade guard/hose setup. This design will be adaptable
to all over-the-table blade guards and I believe can help them do a much
better job. I have not seen anything like it on any commercial or shop made
guard.
I've been prototyping in plywood and will soon build the final product in
Lexan. I'll post pictures in alt.binaries.pictures.woodworking.
Bob
"Jim Giblin" <[email protected]> wrote in message
news:[email protected]...
> I also have a SuperSaw and have it connected to a Delta 50-850 duct
> collector. I question the efficiency of the dust collection design. When
I
> do a large project, considerable saw dust accumulates inside the saw's
> enclosure. It is as if the holes in the bottom of the enclosure are too
few
> or too small to allow the dust to get sucked into the lower compartment
that
> connects to the dust collector. I estimate that only about half of the
> dust that gets created, gets sucked directly into the dust collector. The
> good news is that the dust is at least contained and it is a simple
process
> to whisk broom the accumulated dust onto the area that has the holes. Do
> cabinet saws have a similar dust collection design? Do cabinet saw
require
> much manual clean-up effort?
>
> "mttt" <[email protected]> wrote in message
> news:[email protected]...
> >
> > "Bob Davis" <[email protected]> wrote in message
> > news:[email protected]...
> > >
> > >
> > > 1. Someone at the factory was setting the belt too tight and they
would
> > fail
> > > when the blade was raised up high.
> > > 2. Sawdust may get into the belt and cause premature failure.
> >
> > Thanks Bob...
> >
> > #2 is kind'a ironic - as I can guarantee that sawdust sure as heck will
> get
> > into the belt.... :)
> > And I do use a DC.
> >
> > My nickel says - SuperSaw owners should heed the Ounce of Prevention. As
I
> > found replacement very difficult. Those set screws are awful to loosen.
> All
> > in all, the replacement process is intrusive, lengthy and traumatic for
a
> > newbie.
> >
> >
>
>
I will look forward to your post.
"Bob Davis" <[email protected]> wrote in message
news:[email protected]...
> I believe all table saws have a resident layer of dust build up, no matter
> who good the dust collection.
>
> On mine, the level of the dust stabililzes and does not go any higher.
Right
> now I've a 2 hp Jet collector hooked to the cabinet through a 3 1/2 foot
> hose.
>
> What is much more intriguing to me is getting the dust above the table.
If
> you've followed any of my posts on this, you know that I'm after it with a
> vengeance. I recently came up with a blade guard design that I am pretty
> excited about. Its got an "articulating front piece" that drops down just
> before the blade exits the wood when ripping or cross cutting. This helps
> close in the guard at the point where a gob of dust breaks loose. My tests
> show this extra little piece almost totally eliminates dust above the saw,
> if you have a decent blade guard/hose setup. This design will be
adaptable
> to all over-the-table blade guards and I believe can help them do a much
> better job. I have not seen anything like it on any commercial or shop
made
> guard.
>
> I've been prototyping in plywood and will soon build the final product in
> Lexan. I'll post pictures in alt.binaries.pictures.woodworking.
>
> Bob
>
> "Jim Giblin" <[email protected]> wrote in message
> news:[email protected]...
> > I also have a SuperSaw and have it connected to a Delta 50-850 duct
> > collector. I question the efficiency of the dust collection design.
When
> I
> > do a large project, considerable saw dust accumulates inside the saw's
> > enclosure. It is as if the holes in the bottom of the enclosure are too
> few
> > or too small to allow the dust to get sucked into the lower compartment
> that
> > connects to the dust collector. I estimate that only about half of the
> > dust that gets created, gets sucked directly into the dust collector.
The
> > good news is that the dust is at least contained and it is a simple
> process
> > to whisk broom the accumulated dust onto the area that has the holes.
Do
> > cabinet saws have a similar dust collection design? Do cabinet saw
> require
> > much manual clean-up effort?
> >
> > "mttt" <[email protected]> wrote in message
> > news:[email protected]...
> > >
> > > "Bob Davis" <[email protected]> wrote in message
> > > news:[email protected]...
> > > >
> > > >
> > > > 1. Someone at the factory was setting the belt too tight and they
> would
> > > fail
> > > > when the blade was raised up high.
> > > > 2. Sawdust may get into the belt and cause premature failure.
> > >
> > > Thanks Bob...
> > >
> > > #2 is kind'a ironic - as I can guarantee that sawdust sure as heck
will
> > get
> > > into the belt.... :)
> > > And I do use a DC.
> > >
> > > My nickel says - SuperSaw owners should heed the Ounce of Prevention.
As
> I
> > > found replacement very difficult. Those set screws are awful to
loosen.
> > All
> > > in all, the replacement process is intrusive, lengthy and traumatic
for
> a
> > > newbie.
> > >
> > >
> >
> >
>
>
I also have a SuperSaw and have it connected to a Delta 50-850 duct
collector. I question the efficiency of the dust collection design. When I
do a large project, considerable saw dust accumulates inside the saw's
enclosure. It is as if the holes in the bottom of the enclosure are too few
or too small to allow the dust to get sucked into the lower compartment that
connects to the dust collector. I estimate that only about half of the
dust that gets created, gets sucked directly into the dust collector. The
good news is that the dust is at least contained and it is a simple process
to whisk broom the accumulated dust onto the area that has the holes. Do
cabinet saws have a similar dust collection design? Do cabinet saw require
much manual clean-up effort?
"mttt" <[email protected]> wrote in message
news:[email protected]...
>
> "Bob Davis" <[email protected]> wrote in message
> news:[email protected]...
> >
> >
> > 1. Someone at the factory was setting the belt too tight and they would
> fail
> > when the blade was raised up high.
> > 2. Sawdust may get into the belt and cause premature failure.
>
> Thanks Bob...
>
> #2 is kind'a ironic - as I can guarantee that sawdust sure as heck will
get
> into the belt.... :)
> And I do use a DC.
>
> My nickel says - SuperSaw owners should heed the Ounce of Prevention. As I
> found replacement very difficult. Those set screws are awful to loosen.
All
> in all, the replacement process is intrusive, lengthy and traumatic for a
> newbie.
>
>