marianne kuiper milks on fri 29 jul 05
Hi everyone,
First of all: I am contacting Amaco as well, needless
to say. It's just that I'm puszzled and in a rush.
My Ammaco wheel 15 (or 1S..bad eyes) , a great
war-horse, started smelling like something burning
yesterday. We found a blown fuse in the wheel and
replaced it (35 watt, I believe). It worked fine this
monring, but it started to smike again and the metalk
housing was very hot to the touch. We're trying to
figure out & fix it as soon as possible so ANY
hints/knowledge would be highly azppreciated!!
The rush: we have a 17 yo deaf boy from Germany here
for 3.5 weeks. He just arrived and is here
specifically to throw and learn to build, full days.
He's good and loves it. We are attending a class at
Peters Valley with Randy Broadnax (sp?) on Surface
Altering. We have to bring 20 bisqued pots each, by
August 10 or 12(?). And Daniel needs practicing. He's
considering becoming a potter and in his case this is
a real possibility. (Does anyone out there take an
apprentice? His English is amazingly good and he's a
great kid!)
Anyway: we have no other possibility for him to work
now so any idea why this has happened, what part it
can be, would be great. It is NOT the belt. The cone
looks a bit far off the..whatever part. (sorry)
Hope to get some feedback
Marianne
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Brian Gracia on sat 30 jul 05
In motor speak, I could say that the motor is getting old. As you use the
wheel, your are putting pressure on the motor to maintain its power. This
resistance will cause the motor to overheat and melt the insulation on the
wires inside the motor. Vibration over time can also cause the wires to
rub together as well. The fact that you have blown the fuse indicates that
you have an arcing problem due to warn and melted insulation. Dust cloged
in the motor can also restrict air flow causing over heating and melting of
wiring.
If you take out the motor, you should be able to get one locally or have it
rebuilt. Home Depot sells some small motors, Harbor Freight, Northern
Tools and Granger Wholesale are a few. You can also get a replacement
overnight from the wheel manufacturer. Price should be 100-150 range
depending on HP. I would think 3/4 to 1HP max.
Brian G.
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William & Susan Schran User on sat 30 jul 05
On 7/29/05 6:17 PM, "marianne kuiper milks"
wrote:
> My Ammaco wheel 15 (or 1S..bad eyes) , a great
> war-horse, started smelling like something burning
> yesterday. We found a blown fuse in the wheel and
> replaced it (35 watt, I believe).
This is indeed a workhorse wheel. We had 8 of them in our studio at school.
They were old, from the 1970's, but still going.
Passed them along to a community center when we got new Axner wheels.
On a few of ours, if a student hit the reversing switch while the wheel was
on/engaged, it would blow the control panel. When we got replacement
controls, I had to rewire the motor to match the new panel.
Anyway, check to make sure the fuse is not too high. I can't remember with
these whether it was a 5 amp or a 15 amp fuse. If you've got smoke, then
you've got a short somewhere. You'll need to remove the control box and
inspect it well, checking for any burned/charred/melted wires.
Then contact Amaco. They have a very good wheel technician that can talk you
through troubleshooting.
--
William "Bill" Schran
Fredericksburg, Virginia
William & Susan Schran User on sat 30 jul 05
On 7/30/05 1:18 AM, "Brian Gracia" wrote:
> You can also get a replacement
> overnight from the wheel manufacturer. Price should be 100-150 range
> depending on HP. I would think 3/4 to 1HP max.
The motors in these wheels are 1/3 HP.
Could be motor, could be rubber ring.
This wheel is a cone & ring drive, like the old Shimpos.
Motor could simply be out of adjustment.
Four nut & bolts hold motor in place, slides back & forth.
Don't know, gotta turn the wheel over to see what's up, see if the rubber
ring is chewed up. Easy $15 replacement.
--
William "Bill" Schran
Fredericksburg, Virginia
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