been using my delta 14" saw for about 10 years. been using the same blades
lenox bi metal blades forever too.
the first time it happed I was removing a piece of wood I cut only part way.
sometimes the wood binds a bit and pulls the blade. but it does not cause a
problem. but now the blade will jump forward and be about 1/2 on and 1/2 off the
wheel. at first I played around with the tracking to get it normal. but I found
that if I just undo the tension and get the blade in the middle and tighten it
it will move again the first time and stay the second usually. till something
causes it to jump 1/2 off the wheel again.
it tracks fine till that sudden jump. then it will stay there untilled I change
the tracking or undo and redo the tension.
the second time it happened it cut right through the blade guard sure startled
me (G)
--
Knight-Toolworks & Custom Planes
Custom made wooden planes at reasonable prices
See http://www.knight-toolworks.com For prices and ordering instructions.
It is not obvious from your post, but have you tried changing the
blade? I am using the same saw and had a similar problem before
finding an ever so slight kink in the bandsaw blade that caused it to
jump on the wheel from time to time. I had virtually overhauled my
machine before figuring it out, but it probably needed a good cleaning
and alignment. After putting a new blade on, I was back in business.
Sawblade
It is not obvious from your post, but have you tried changing the
blade? I am using the same saw and had a similar problem before
finding an ever so slight kink in the bandsaw blade that caused it to
jump on the wheel from time to time. I had virtually overhauled my
machine before figuring it out, but it probably needed a good cleaning
and alignment. After putting a new blade on, I was back in business.
Sawblade
Steve; Sounds like you did sumpin to anger the tool gods. Add the chisel and
now the BS, what's next? I wouldn't ride that recumbent any longer, it might
conspire to do you in. Reminds me of the twilight zone epp where all the
appliances conspire against the critic. Regards Pat (stratus rider n
sawdust maker)
"Steve Knight" <[email protected]> wrote in message
news:[email protected]...
> been using my delta 14" saw for about 10 years. been using the same
blades
> lenox bi metal blades forever too.
> the first time it happed I was removing a piece of wood I cut only part
way.
> sometimes the wood binds a bit and pulls the blade. but it does not cause
a
> problem. but now the blade will jump forward and be about 1/2 on and 1/2
off the
> wheel. at first I played around with the tracking to get it normal. but I
found
> that if I just undo the tension and get the blade in the middle and
tighten it
> it will move again the first time and stay the second usually. till
something
> causes it to jump 1/2 off the wheel again.
> it tracks fine till that sudden jump. then it will stay there untilled I
change
> the tracking or undo and redo the tension.
> the second time it happened it cut right through the blade guard sure
startled
> me (G)
>
Tires could be your problem. If they're gummed flat or losing their crown,
it's easier for the blade to run forward. Keep a couple of wedges at hand
to open the kerf before you start backing out, BTW.
On Sun, 10 Apr 2005 09:46:52 -0700, Steve Knight
<[email protected]> wrote:
> been using my delta 14" saw for about 10 years. been using the same blades
>lenox bi metal blades forever too.
> the first time it happed I was removing a piece of wood I cut only part way.
>sometimes the wood binds a bit and pulls the blade. but it does not cause a
>problem. but now the blade will jump forward and be about 1/2 on and 1/2 off the
>wheel. at first I played around with the tracking to get it normal. but I found
>that if I just undo the tension and get the blade in the middle and tighten it
>it will move again the first time and stay the second usually. till something
>causes it to jump 1/2 off the wheel again.
> it tracks fine till that sudden jump. then it will stay there untilled I change
>the tracking or undo and redo the tension.
> the second time it happened it cut right through the blade guard sure startled
>me (G)
Check the bearing on your idle wheel. We were having a problem with
this on one of the big saws at work, and about a week later the whole
bearing ripped itself to shreds. Made a lot of noise, but it didn't
damage anything- but with a 14" shop saw, that may be a different
story. It's definately worth checking out, anyhow.
Aut inveniam viam aut faciam
On 10 Apr 2005 20:33:11 -0700, "Sawblade" <[email protected]> wrote:
>It is not obvious from your post, but have you tried changing the
>blade?
two or three blades have done this. though it seems to be getting worse.
--
Knight-Toolworks & Custom Planes
Custom made wooden planes at reasonable prices
See http://www.knight-toolworks.com For prices and ordering instructions.
On Mon, 11 Apr 2005 05:50:49 -0700, "patrick mitchel" <[email protected]>
wrote:
>Steve; Sounds like you did sumpin to anger the tool gods. Add the chisel and
>now the BS, what's next? I wouldn't ride that recumbent any longer, it might
>conspire to do you in.
you would think with all of the added gods I have made I would be immune?
--
Knight-Toolworks & Custom Planes
Custom made wooden planes at reasonable prices
See http://www.knight-toolworks.com For prices and ordering instructions.
> Tires could be your problem. If they're gummed flat or losing their crown,
>it's easier for the blade to run forward. Keep a couple of wedges at hand
>to open the kerf before you start backing out, BTW.
I glanced at them and they seemed ok. I don't get gum as I only cut tropicals.
when the wood dues pull at the blade when I pull it out it is only slightly
since I am cutting tropicals. but it even happens if a piece of wood jams in the
throat plate. I will inspect my rubbers tomorrow (G)
--
Knight-Toolworks & Custom Planes
Custom made wooden planes at reasonable prices
See http://www.knight-toolworks.com For prices and ordering instructions.
That is the main thing they warn of when you try to back out of a partial
cut. Have you rounded the back of the blade? That might help. I have a
cut blade guard too, from the back of the blade cutting in. Part of my
education.
Steve
"Steve Knight" <[email protected]> wrote in message
news:[email protected]...
> been using my delta 14" saw for about 10 years. been using the same
> blades
> lenox bi metal blades forever too.
> the first time it happed I was removing a piece of wood I cut only part
> way.
> sometimes the wood binds a bit and pulls the blade. but it does not cause
> a
> problem. but now the blade will jump forward and be about 1/2 on and 1/2
> off the
> wheel. at first I played around with the tracking to get it normal. but I
> found
> that if I just undo the tension and get the blade in the middle and
> tighten it
> it will move again the first time and stay the second usually. till
> something
> causes it to jump 1/2 off the wheel again.
> it tracks fine till that sudden jump. then it will stay there untilled I
> change
> the tracking or undo and redo the tension.
> the second time it happened it cut right through the blade guard sure
> startled
> me (G)
>
>
>
>
> --
> Knight-Toolworks & Custom Planes
> Custom made wooden planes at reasonable prices
> See http://www.knight-toolworks.com For prices and ordering instructions.
Steve Knight says...
> been using my delta 14" saw for about 10 years. been using the same blades
> lenox bi metal blades forever too.
> the first time it happed I was removing a piece of wood I cut only part way.
> sometimes the wood binds a bit and pulls the blade. but it does not cause a
> problem. but now the blade will jump forward and be about 1/2 on and 1/2 off the
> wheel. at first I played around with the tracking to get it normal. but I found
> that if I just undo the tension and get the blade in the middle and tighten it
> it will move again the first time and stay the second usually. till something
> causes it to jump 1/2 off the wheel again.
> it tracks fine till that sudden jump. then it will stay there untilled I change
> the tracking or undo and redo the tension.
> the second time it happened it cut right through the blade guard sure startled
> me (G)
Just a few guesses that you probably already thought of. Maybe some
embedded saw dust on the tires or just worn tires. Maybe the tires are
concave after years of use. Maybe there is a loose spot where the glue
let go or maybe there is a crack in a tire. I would change the tires if
it keeps happening.
In article <[email protected]>,
Prometheus <[email protected]> wrote:
> The idle wheel is the one that spins freely when you do not have a
> blade installed. I never really bothered to check to see what Delta
> called it in the manual for my little benchtop one, that's just what
> HE&M calls them in the big ones. Sorry for any confusion on that
> point.
Ah, I was thinking along the lines of an idler pulley - to tension a
drive belt or somethingalongthoselines.
--
Owen Lowe
The Fly-by-Night Copper Company
____
"I pledge allegiance to the flag of the
Corporate States of America and to the
Republicans for which it stands, one nation,
under debt, easily divisible, with liberty
and justice for oil."
- Wiley Miller, Non Sequitur, 1/24/05
In article <[email protected]>,
Steve Knight <[email protected]> wrote:
> >Check the bearing on your idle wheel. We were having a problem with
> >this on one of the big saws at work, and about a week later the whole
> >bearing ripped itself to shreds. Made a lot of noise, but it didn't
> >damage anything- but with a 14" shop saw, that may be a different
> >story. It's definately worth checking out, anyhow.
> >Aut inveniam viam aut faciam
>
> will do.
Hmmm. I have a 14" saw but don't know what an idle wheel might be...
BUT this brings another thought to mind - maybe one of your wheel
bearings is sloppy or perhaps something has entered the bearing and
intermittently gets pulled into the rotating action - causing the wheel
to jump.
--
Owen Lowe
The Fly-by-Night Copper Company
____
"I pledge allegiance to the flag of the
Corporate States of America and to the
Republicans for which it stands, one nation,
under debt, easily divisible, with liberty
and justice for oil."
- Wiley Miller, Non Sequitur, 1/24/05
>BUT this brings another thought to mind - maybe one of your wheel
>bearings is sloppy or perhaps something has entered the bearing and
>intermittently gets pulled into the rotating action - causing the wheel
>to jump.
ok I checked the bearings atleast in the top wheel. don't know why I did not
check the bottom (G) but they seemed nice and smooth. the rubber looks good and
still has the same crown it always has.
nothing gets pulled in just sawdust.
--
Knight-Toolworks & Custom Planes
Custom made wooden planes at reasonable prices
See http://www.knight-toolworks.com For prices and ordering instructions.
On Mon, 11 Apr 2005 13:55:30 -0700, Fly-by-Night CC
<[email protected]> wrote:
>In article <[email protected]>,
> Steve Knight <[email protected]> wrote:
>
>> >Check the bearing on your idle wheel. We were having a problem with
>> >this on one of the big saws at work, and about a week later the whole
>> >bearing ripped itself to shreds. Made a lot of noise, but it didn't
>> >damage anything- but with a 14" shop saw, that may be a different
>> >story. It's definately worth checking out, anyhow.
>> >Aut inveniam viam aut faciam
>>
>> will do.
>
>Hmmm. I have a 14" saw but don't know what an idle wheel might be...
The idle wheel is the one that spins freely when you do not have a
blade installed. I never really bothered to check to see what Delta
called it in the manual for my little benchtop one, that's just what
HE&M calls them in the big ones. Sorry for any confusion on that
point.
>BUT this brings another thought to mind - maybe one of your wheel
>bearings is sloppy or perhaps something has entered the bearing and
>intermittently gets pulled into the rotating action - causing the wheel
>to jump.
Aut inveniam viam aut faciam
>Check the bearing on your idle wheel. We were having a problem with
>this on one of the big saws at work, and about a week later the whole
>bearing ripped itself to shreds. Made a lot of noise, but it didn't
>damage anything- but with a 14" shop saw, that may be a different
>story. It's definately worth checking out, anyhow.
>Aut inveniam viam aut faciam
will do.
--
Knight-Toolworks & Custom Planes
Custom made wooden planes at reasonable prices
See http://www.knight-toolworks.com For prices and ordering instructions.