Monica Wright on thu 3 sep 09
Mine is a a metalic grinding sound.=3DA0 Kind of like brake pads on a car t=
ha=3D
t are worn down too far.=3DA0 Or maybe twice as loud as the sound that is m=
ad=3D
e when grinding a lithography stone (for the printmakers out there).=3DA0 A=
bo=3D
ut 95% sure it is inside the motor.=3DA0 Threw some oil on the belt last ye=
ar=3D
and it didn't seem to help.=3DA0 Doesn't look to be that easy to crack one=
o=3D
f those suckers open to see what the deal is though.=3DA0 Can't afford a ne=
w =3D
motor either.=3DA0 Maybe I can find a used motor somewhere that will work.
--- On Thu, 9/3/09, jonathan byler wrote:
From: jonathan byler
Subject: Re: Noisy Pacific GT800
To: "Monica Wright" , "Clayart" =3D
ICS.ORG>
Date: Thursday, September 3, 2009, 1:18 PM
if you have a newer pacifica wheel, there are 4 polyurethane belts instead =
=3D
of a v belt.=3DA0 you can quite the sqeek with some silicone spray or the l=
ik=3D
e.=3DA0 all of our wheels here (20+) have had this problem at one time or a=
no=3D
ther and all of the wheels came from pacifica with a can of the spray lube,=
=3D
so it must be a common problem.=3DA0 we never found that the wheels perfor=
me=3D
d badly when they were sqeeking, just that the noise was annoying.
new belts are cheapest from mcmaster-carr:
part # =3DA0=3DA0=3DA0 1835T281=3DA0 cost about 7.72 $each.
a whole lot less than what the clay supply people and laguna want.
On Sep 2, 2009, at 9:39 PM, Monica Wright wrote:
> My Lord!!!=3DA0 Mine too.=3DA0 Motor squeeks like something aweful.=3DA0 =
Used t=3D
o be super quiet.=3DA0 Sat unused in my garage for about 3 years and then "=
SQ=3D
UEEEEEK".=3DA0 I am guessing my wheel drew some moisture into the motor fro=
m =3D
sitting on a concrete floor for so long.=3DA0 Rusty in there?=3DA0 Maybe?=
=3DA0 Ca=3D
n't afford a new motor so will just grin and bear it.=3DA0 Any suggestions =
fo=3D
r my wheel as well?
>=3D20
> --- On Wed, 9/2/09, J Motzkin wrote:
>=3D20
>=3D20
> From: J Motzkin
> Subject: Noisy Pacific GT800
> To: Clayart@LSV.CERAMICS.ORG
> Date: Wednesday, September 2, 2009, 5:06 PM
>=3D20
>=3D20
> We just got a used Pacifica GT800 and it is noisier than expected. It was
> not used for 5 years. Is there anything specific that this needs by way o=
=3D
f
> maintenance that might soothe the noisy beast?
> Judy
Michael Wendt on fri 4 sep 09
New bearings cost about $7-8 each and take a few minutes to
replace. I have done it myself on many different brands and
sizes of motors.
The outer part of the bearings slip fit into the end caps of
the motor.
The inner race is a light press fit so you will need a gear
puller. Most electric motor shops do this all the time so
for a one time cost of bearings plus labor, you can have
them do this if you are not comfortable doing it. Just get a
quote first to see if it is in budget.
Regards,
Michael Wendt
Steve Slatin on fri 4 sep 09
Doesn't sound like a belt, could well be a bearing.
The wheel head itself is mounted on a bearing (I believe
it is a single bearing, unlike some Brents that have
a dual-bearing system) and there are also (IIRC) two
bearings in the motor.
Because the fault could be in either, make sure you're
free of all dangling clothing, jewlery, etc., remove
all extraneous materials from the vicinity of the wheel,
turn it on and get it grinding. Kneeling at the side
of the wheel, take a good look underneath and being careful
not to get anything caught in a belt, feel the meachanism
supporting the wheel-head and then the motor housing.
You should be able to feel the vibration that's associated
with the grinding sound. Whichever it's coming from is
where the likely defective bearing is that needs to be
replaced.
A motor repair place or a machine shop can very likely
do the fix for you if you don't feel up to it.
Steve (not writing too clearly today, am I?) Slatin=3D20
--- On Thu, 9/3/09, Monica Wright wrote:
> Date: Thursday, September 3, 2009, 7:51 PM
> Mine is a a metalic grinding sound.=3DA0
> Kind of like brake pads on a car that are worn down too
> far.=3DA0 Or maybe twice as loud as the sound that is made when
> grinding a lithography stone (for the printmakers out
> there).=3DA0 About 95% sure it is inside the motor.=3DA0 Threw
> some oil on the belt last year and it didn't seem to help.=3DA0
> Doesn't look to be that easy to crack one of those suckers
> open to see what the deal is though.=3DA0 Can't afford a new
> motor either.=3DA0 Maybe I can find a used motor somewhere that
> will work.
=3D0A=3D0A=3D0A
David Hendley on fri 4 sep 09
Monica, this sounds like bad bearings, without a doubt.
First, as I advised yesterday, remove the belt and then
run the motor - this will let you know if the bad bearings
are in the motor or the wheelhead.
Also, as I said yesterday, I posted step-by-step instructions,
for complete novices, of how to install new bearings in a
motor. It's really not too hard, but you will need some
tools. Search for a post called "The crickets are dead"
by hendley@tyler.net in the Clayart archives.
Just remove the old bearings and take them to a bearing
shop to make sure you get the right replacement ones.
There's no reason to buy a new motor.
David Hendley
david@farmpots.com
http://www.farmpots.com
----- Original Message -----
Mine is a a metalic grinding sound. Kind of like brake pads on a car that
are worn down too far. Or maybe twice as loud as the sound that is made whe=
n
grinding a lithography stone (for the printmakers out there). About 95% sur=
e
it is inside the motor. Threw some oil on the belt last year and it didn't
seem to help. Doesn't look to be that easy to crack one of those suckers
open to see what the deal is though. Can't afford a new motor either. Maybe
I can find a used motor somewhere that will work.
Tracy Shea on sat 5 sep 09
I have a GT400 with the 4 belts- and I got the can of silicone spray, too,
with my wheel. When it gets a little squeaky, the spray fixes her right up.
I also take an old rag, get under there and grab the belts gently while it'=
s
on to clean any gook off of the belts. I've had my wheel since the early
90's and she's really quiet . The only other prob I've ever had is that the
little magnet in the pedal shifts some and it doesn't want to totally turn
off. I've been able to fix that several times by just pushing it back in
place.
--
SheaClay Pottery
http://www.sheaclay.com
http://www.sheaclay.etsy.com
http://www.sheaclay.1000markets.com
Snail Scott on sat 5 sep 09
My own GT800 was on loan to the local nonprofit
art center for two years, and when it came home,
it had a rhythmic but intermittent clank. (???)
Still haven't figured it out.
-Snail
Monica Wright on sat 5 sep 09
So the moral is to never buy a Pacifica?=3DA0 Are these noise problems comm=
on=3D
with other wheel models?=3DA0 Wish I had a Randall wheel.=3DA0 Used one fo=
r qu=3D
ite a while and never had a lick of problems.=3DA0 Anyone have one sitting =
ar=3D
ound collecting dust in the midwest (Illinois)?
--- On Sat, 9/5/09, Snail Scott wrote:
From: Snail Scott
Subject: Re: Noisy Pacific GT800
To: Clayart@LSV.CERAMICS.ORG
Date: Saturday, September 5, 2009, 10:31 AM
My own GT800 was on loan to the local nonprofit
art center for two years, and when it came home,
it had a rhythmic but intermittent clank.=3DA0 (???)
Still haven't figured it out.
=3DA0 =3DA0 =3DA0 =3DA0 =3DA0 =3DA0 =3DA0 =3DA0 =3DA0 =3DA0 =3DA0 =3DA0 =3D=
A0 =3DA0 =3DA0 =3DA0 =3DA0 =3DA0 =3DA0=3D
=3DA0 =3DA0 =3DA0 =3DA0 =3DA0 =3DA0 =3DA0 =3DA0 =3DA0 -Snail
Snail Scott on sat 5 sep 09
On Sep 5, 2009, at 11:36 AM, Monica Wright wrote:
> So the moral is to never buy a Pacifica?=3DA0 Are these noise problems=3D=
20=3D
> common with other wheel models?=3DA0
No, I've found them to be reliable and quite good,
especially for the price. The topic simply brought out
all the issues that have developed for that model.
A previous thread on Brent had a similar effect. No
mechanical device is free of maintenance issues.
-Snail
Jess McKenzie on sat 5 sep 09
We visited a studio last week. The potter, a high volume
thrower, has three Pacificas, older models that have seen lots
of heavy use. And all three are as quiet as mice!
Further, more than a few ClayArt folks have sworn by their
Pacificas.
So, the *real* moral seems to be: buy a Pacifica, practice
preventive maintenance, and don't lend it out to be used by
people you don't know.
Lordy, we hope that's true, 'cause we just ordered one.
~joan ane jess
Monica Wright wrote:
So the moral is to never buy a Pacifica?=3DA0 Are these noise
problems common with other wheel models?=3DA0 Wish I had a Randall
wheel.=3DA0 Used one for quite a while and never had a lick of
problems.=3DA0 Anyone have one sitting around collecting dust in
the midwest (Illinois)?
--- On Sat, 9/5/09, Snail Scott
wrote:
My own GT800 was on loan to the local nonprofit
art center for two years, and when it came home,
it had a rhythmic but intermittent clank.=3DA0 (???)
Still haven't figured it out.
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