search  current discussion  categories  tools & equipment - slab rollers 

broken slab roller

updated tue 12 apr 05

 

J Lutz on sun 10 apr 05


My slab roller just broke!!
I have a North Star and am using the large round wheel handle on it.
The little pin that holds the wheel on just broke off. It's a hollow tube
like pin. The half that fell out was also split in half vertically. The
other half is still in the shank. I've tried removing it with needle nose
pliers and by trying to push it out. No Luck.

How do I get the piece in the shank out and what do I ask for at the
hardware store when I try to find something to replace it? Wouldn't it be
better to get something solid rather than hollow?
Since there are no threads in it what holds it in place?

Any suggestions will be appreciated.

Jean Lutz
Prescott AZ (we had a snow storm yesterday!)

annsemple on sun 10 apr 05


Call North Star
they are great about customer service. Phones: 509-235-9200 and =
800-231-7896
Same thing happened to mine a short while ago and I called and a =
replacement part was in the mail the next day - no charge.
Sorry to hear about the snow!
Ann=20

Vancouver Island, BC, Canada
annsemple@shaw.ca
www.clayfootcrockery.com

"Life should NOT be a journey to the grave with the intention of =
arriving safely in an attractive and well preserved body, but rather to =
skid in sideways, champagne in one hand - strawberries in the other, =
body thoroughly used up, totally worn out and screaming WOO HOO - What a =
Ride!" (Hunter S. Thompson)

Mike Gordon on sun 10 apr 05


Jean,
The pins are split vertically so that they will compress as they are
inserted the hole. If you call North Star they will send replacements,
they are great people. If you have a carpenters nail set you can drive
the broken piece out. You can also use a large cotter key until you get
replacements. Mike Gordon
On Apr 10, 2005, at 12:48 PM, J Lutz wrote:

> My slab roller just broke!!
>
> _______________________________________________________________________
> _______
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
> melpots@pclink.com.
>

Andrew Lubow on sun 10 apr 05


Contact North Star directly @ their slab rollers have a lifetime =
warranty if they were built after 1997 with few exceptions =
http://www.northstarequipment.com/Site.htmlcom/Site.html>=20
The factory toll-free telephone number is (800) 231-7896. Our offices =
are open from 8:00 to 5:00 PST Monday through Friday except major =
holidays. The toll-free fax number, in use 24 hours a day every day, is =
(800) 447-3293.

Andy Lubow
"Live each day like it was going to be your last. Someday you'll be =
right" Benny Hill
----- Original Message -----=20
From: J Lutz=20
To: CLAYART@LSV.CERAMICS.ORG=20
Sent: Sunday, April 10, 2005 3:48 PM
Subject: broken slab roller


My slab roller just broke!!
I have a North Star and am using the large round wheel handle on it.
The little pin that holds the wheel on just broke off. It's a hollow =
tube
like pin. The half that fell out was also split in half vertically. =
The
other half is still in the shank. I've tried removing it with needle =
nose
pliers and by trying to push it out. No Luck.

How do I get the piece in the shank out and what do I ask for at the
hardware store when I try to find something to replace it? Wouldn't =
it be
better to get something solid rather than hollow?
Since there are no threads in it what holds it in place?

Any suggestions will be appreciated.

Jean Lutz
Prescott AZ (we had a snow storm yesterday!)

=
_________________________________________________________________________=
_____
Send postings to =
clayart@lsv.ceramics.org

You may look at the archives for the list or change your subscription
settings from =
http://www.ceramics.org/clayart/

Moderator of the list is Mel Jacobson who may be reached at =
melpots@pclink.com.

pdp1@EARTHLINK.NET on sun 10 apr 05


Hi Jean,


Drive out the broken piece with any similar but not larger
diameter 'round' anything, like a long enough Machine Screw
or short piece of slender rod.

The pin is called a 'Shear Pin' and they are meant to break,
or to shear, slightly in advance of what would have been a
more serious component of your Machine failing from some
applied stress or other.

You should be able to get a replacement from any decent
Hardware Store or earnest Automobile Supply Store, or places
that sell things for Out Board Motors or Machines
generally.


See if you can determine how or what was over-stressing your
Slab Roller, because it sounds like something was offering
too much resistance to the Wheel getting turned...


Best wishes,
Phil
el ve

----- Original Message -----
From: "J Lutz"


> My slab roller just broke!!
> I have a North Star and am using the large round wheel
handle on it.
> The little pin that holds the wheel on just broke off.
It's a hollow tube
> like pin. The half that fell out was also split in half
vertically. The
> other half is still in the shank. I've tried removing it
with needle nose
> pliers and by trying to push it out. No Luck.
>
> How do I get the piece in the shank out and what do I ask
for at the
> hardware store when I try to find something to replace it?
Wouldn't it be
> better to get something solid rather than hollow?
> Since there are no threads in it what holds it in place?
>
> Any suggestions will be appreciated.
>
> Jean Lutz
> Prescott AZ (we had a snow storm yesterday!)

Hank Murrow on sun 10 apr 05


On Apr 10, 2005, at 12:48 PM, J Lutz wrote:
>
> I have a North Star and am using the large round wheel handle on it.
> The little pin that holds the wheel on just broke off. It's a hollow
> tube
> like pin. The half that fell out was also split in half vertically.
> The other half is still in the shank. I've tried removing it with
> needle nose
> pliers and by trying to push it out. No Luck.

Dear Jean;

Your oin is called a 'split pin', and the small tension of being
slightly larger in diameter than the hole, and the split nature of the
pin holds it in place. It is a fine solution for that connection. What
you need to do is use a drift pin slightly smaller than the hole and of
hardened steel to drive the broken pin out, replacing it with another
just like it. A good hardware store will have them.

Cheers, Hank
www.murrow.biz/hank

Earl Brunner on sun 10 apr 05


I think they are intended to break. If they don't then your nylon gears
might. Mine came with several replacement pins. (You should be able to get
a nail that will fit in the hole and just pound the thing out) You could use
something like a nail in its place but I would only do it as a temporary
fix. Cotter pins might be a good replacement but get them to fit tightly.
You can get the "real" pins from North Star.

Earl Brunner
Las Vegas, NV
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of J Lutz
Sent: Sunday, April 10, 2005 12:49 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: broken slab roller

My slab roller just broke!!
I have a North Star and am using the large round wheel handle on it.
The little pin that holds the wheel on just broke off. It's a hollow tube
like pin. The half that fell out was also split in half vertically. The
other half is still in the shank. I've tried removing it with needle nose
pliers and by trying to push it out. No Luck.

How do I get the piece in the shank out and what do I ask for at the
hardware store when I try to find something to replace it? Wouldn't it be
better to get something solid rather than hollow?
Since there are no threads in it what holds it in place?

Any suggestions will be appreciated.

Jean Lutz
Prescott AZ (we had a snow storm yesterday!)

____________________________________________________________________________
__
Send postings to clayart@lsv.ceramics.org

You may look at the archives for the list or change your subscription
settings from http://www.ceramics.org/clayart/

Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.

Vince Pitelka on sun 10 apr 05


> How do I get the piece in the shank out and what do I ask for at the
> hardware store when I try to find something to replace it? Wouldn't it be
> better to get something solid rather than hollow?
> Since there are no threads in it what holds it in place?

Judith -
The pin in question is called a "roll pin," and is available from any good
auto parts store, but probably not from a hardware store.

You need to use a small drift-pin to drive out the section of the pin that
still in the main shaft. A drift pin is like a chisel, but it has a small
round flat end, and it is made for driving small pins in situations like
this. They are not expensive, but you might have trouble finding one. As
an alternate, you could simply find a nail of about the right size, and
grind the tip flat.

The roll pin is made from spring steel, and is designed to be a tight fit in
the center shaft - that's what holds it in, and that's why you are having
trouble getting that fragment out.

You do not want to put in a solid pin, because this is the weak link. This
is the inexpensive part that breaks instead of stripping gears or some much
more expensive breakage. This represents good industrial design sense.

When you get the pin, get a supply of them, so you'll have one on hand next
time this happens. When you drive out the center section, take it with you
to the store to determine the right diameter pin. Measure the overall length
of the hole through the wheel hub, in order to determine the length of the
original pin.
Good luck -
- Vince

Vince Pitelka
Appalachian Center for Craft, Tennessee Technological University
Smithville TN 37166, 615/597-6801 x111
vpitelka@dtccom.net, wpitelka@tntech.edu
http://iweb.tntech.edu/wpitelka/
http://www.tntech.edu/craftcenter/

Linda Ferzoco on mon 11 apr 05


Hi Jean,

That'a cotter pin that's holding the wheel on. It's a very old system for
this kind of application. The split pin (looks like a hairpin), is pushed
through the hole and the opposing legs of the split pin are tightly pushed
down and secured.

I'm wondering if drilling it out mightn't work. Then just go to your local
hardware store and get another cotter pin.

Cheers, Linda

On Sun, 10 Apr 2005 12:48:52 -0700, J Lutz wrote:

>My slab roller just broke!!

Jim Willett on mon 11 apr 05


Hello Jean,
The pin you are looking at is called a split pin. The fact it is split and
not solid is what holds it in place. It is compressed slightly when driven
into the hole in the first place. To remove the piece which remains in the
hole you need to drive (or push) the broken piece out with a steel punch
just slightly smaller diameter than the hole.If you purchased this slab
roller new it should have come with a spare or two. If not just take the
pieces of the pin with you to the hardware store and tell them you need a
split pin the diameter of the one you have in pieces. Sometimes you can
use the new pin to drive the old one out if you don't have a punch....(of
course if you are going to the hardware store anyway...!) Hope this helps.

Jim Willett
Out of the Fire Studio
Edmonton Alberta
http://www.outofthefirestudio.com