Tube fuse stuck in the tube

C

Chipperoni

Guest
Hi, I have a ceramic tube fuse that is stuck. The fuse blew last week
and is set inside a tube that is just barely larger than the fuse
diameter. The fuse is recessed about a 1/2" back. It's not magnetic
so a little magnet rod won't work. I've tried a little super glue o
the end of a nail head, but that didn't work either, the glue connectio
failed. It's really stuck. This happened once before and we ended u
tearing apart the fuse trying to dislodge it and in turn tore up th
housing. Cost us $125 to replace that. I'd prefer not to go that rout
again if it's avoidable. Any ideas???

Thanks!
Chi


--
Chipperoni
 
Chipperoni Inscribed thus:

Hi, I have a ceramic tube fuse that is stuck. The fuse blew last
week, and is set inside a tube that is just barely larger than the
fuses
diameter. The fuse is recessed about a 1/2" back. It's not magnetic,
so a little magnet rod won't work. I've tried a little super glue on
the end of a nail head, but that didn't work either, the glue
connection
failed. It's really stuck. This happened once before and we ended up
tearing apart the fuse trying to dislodge it and in turn tore up the
housing. Cost us $125 to replace that. I'd prefer not to go that
route
again if it's avoidable. Any ideas???

Thanks!
Chip
Click to expand...
Drill a small 1mm hole in the end and use a barbed fish hook
straightened out, grip with pliers to pull it out.

--
Best Regards:
Baron.
 
Chipperoni wrote:

Hi, I have a ceramic tube fuse that is stuck. The fuse blew last week,
and is set inside a tube that is just barely larger than the fuses
diameter. The fuse is recessed about a 1/2" back. It's not magnetic,
so a little magnet rod won't work. I've tried a little super glue on
the end of a nail head, but that didn't work either, the glue connection
failed. It's really stuck. This happened once before and we ended up
tearing apart the fuse trying to dislodge it and in turn tore up the
housing. Cost us $125 to replace that. I'd prefer not to go that route
again if it's avoidable. Any ideas???

Thanks!
Chip

get a 6/32 start tap (tapered) and proper drill bit, something tells
Click to expand...
me it maybe a #29 but don't quote me on that one. Drill a hole in the
end cap of the fuse, and then try to tap it. Use the tap or a 6/32 screw
to gently pull it out.

Jamie
 
Jamie <jamie_ka1lpa_not_valid_after_ka1lpa_@charter.net> wrote:
Chipperoni wrote:

Hi, I have a ceramic tube fuse that is stuck. The fuse blew last week,
and is set inside a tube that is just barely larger than the fuses
diameter. The fuse is recessed about a 1/2" back. It's not magnetic,
so a little magnet rod won't work. I've tried a little super glue on
the end of a nail head, but that didn't work either, the glue connection
failed. It's really stuck. This happened once before and we ended up
tearing apart the fuse trying to dislodge it and in turn tore up the
housing. Cost us $125 to replace that. I'd prefer not to go that route
again if it's avoidable. Any ideas???

Thanks!
Chip

get a 6/32 start tap (tapered) and proper drill bit, something tells
me it maybe a #29 but don't quote me on that one. Drill a hole in the
end cap of the fuse, and then try to tap it. Use the tap or a 6/32 screw
to gently pull it out.

Jamie
Click to expand...
If you have a good ironwith a chisel tip you may be able to solder a lead
to the end cap and yank it out. You might also melt something.
 
Chipperoni <Chipperoni.ba8da48@diybanter.com> wrote in message
news:Chipperoni.ba8da48@diybanter.com...
Hi, I have a ceramic tube fuse that is stuck. The fuse blew last week,
and is set inside a tube that is just barely larger than the fuses
diameter. The fuse is recessed about a 1/2" back. It's not magnetic,
so a little magnet rod won't work. I've tried a little super glue on
the end of a nail head, but that didn't work either, the glue connection
failed. It's really stuck. This happened once before and we ended up
tearing apart the fuse trying to dislodge it and in turn tore up the
housing. Cost us $125 to replace that. I'd prefer not to go that route
again if it's avoidable. Any ideas???

Thanks!
Chip




--
Chipperoni
Click to expand...

I would find a metal cylinder sleeve to protect the housing and a small
sharp drill bit, Don't drill for long or the heat will break the bond to the
cap. Stop the drill , in situ, and hopefully pull out the fuse. Failing that
, assuming you have a hole, then a thin tapered screw jammed in the hole and
pulled.
If the cap, only, dislodges then use the fuse barrel as a sleeve and
continue drilling to the end , for a second attempt at snagging the drill
bit.
 
"Chipperoni"
Hi, I have a ceramic tube fuse that is stuck. The fuse blew last week,
and is set inside a tube that is just barely larger than the fuses
diameter. The fuse is recessed about a 1/2" back. It's not magnetic,
so a little magnet rod won't work. I've tried a little super glue on
the end of a nail head, but that didn't work either, the glue connection
failed. It's really stuck. This happened once before and we ended up
tearing apart the fuse trying to dislodge it and in turn tore up the
housing.
Click to expand...

** There was a certain brand of 3AG size cartridge fuse holder that was
widely on sale in Australia - it was labelled as having local ( WA)
Energy Authority approval too - a rarity indeed. This was mainly based on
the fact it was " finger safe" even when the circuit was live.

It seemed rather well mad,e so I bought a number of them for use in various
situations, as did many others.

Soon I found they had a major flaw - if the 3AG fuse ever got hot, the
plastic body shrank and trapped it inside for ever.

A 5 amp rated fuse running at 5 amps or so was enough to do it over time.

A 10 amp fuse running at 10 amps would do it in a matter of minutes.

So fucking much for authority approval - eh ?


..... Phil
 
"Cydrome Leader"
** There was a certain brand of 3AG size cartridge fuse holder that was
widely on sale in Australia - it was labelled as having local ( WA)
Energy Authority approval too - a rarity indeed. This was mainly based
on
the fact it was " finger safe" even when the circuit was live.

It seemed rather well made, so I bought a number of them for use in
various
situations, as did many others.

Soon I found they had a major flaw - if the 3AG fuse ever got hot, the
plastic body shrank and trapped it inside for ever.

A 5 amp rated fuse running at 5 amps or so was enough to do it over time.

A 10 amp fuse running at 10 amps would do it in a matter of minutes.

So fucking much for authority approval - eh ?


It's like the UL stickers on stuff in US. It only means somebody payed for
the holographic sticker, and if you can't get those fake, in China I'd be
shocked, even more than from the device itself.
Click to expand...

** The labelling was not fake, the supplier was one of Australia's largest
and the holders were not from China.

My information was that the testing required for agency approval did not
include operating with a fuse that dissipated several watts of heat.

The failure mode was not unsafe - just damn stupid.



..... Phil.
 
Phil Allison <phil_a@tpg.com.au> wrote:
"Chipperoni"

Hi, I have a ceramic tube fuse that is stuck. The fuse blew last week,
and is set inside a tube that is just barely larger than the fuses
diameter. The fuse is recessed about a 1/2" back. It's not magnetic,
so a little magnet rod won't work. I've tried a little super glue on
the end of a nail head, but that didn't work either, the glue connection
failed. It's really stuck. This happened once before and we ended up
tearing apart the fuse trying to dislodge it and in turn tore up the
housing.


** There was a certain brand of 3AG size cartridge fuse holder that was
widely on sale in Australia - it was labelled as having local ( WA)
Energy Authority approval too - a rarity indeed. This was mainly based on
the fact it was " finger safe" even when the circuit was live.

It seemed rather well mad,e so I bought a number of them for use in various
situations, as did many others.

Soon I found they had a major flaw - if the 3AG fuse ever got hot, the
plastic body shrank and trapped it inside for ever.

A 5 amp rated fuse running at 5 amps or so was enough to do it over time.

A 10 amp fuse running at 10 amps would do it in a matter of minutes.

So fucking much for authority approval - eh ?
Click to expand...
It's like the UL stickers on stuff in US. It only means somebody payed for
the holographic sticker, and if you can't get those fake, in China I'd be
shocked, even more than from the device itself.

I'd be terrified to even run 24 volts though the christmas tree lighting
stuff they sell here.
 
qOn Fri, 12 Apr 2013 09:17:23 +1000, "Phil Allison"
<phil_a@tpg.com.au> wrote:


My information was that the testing required for agency approval did not
include operating with a fuse that dissipated several watts of heat.

The failure mode was not unsafe - just damn stupid.
.... Phil.
Click to expand...

That is true that the approvals testing is absolutely only for the
electrical safety of the device. No consideration is made of the
suitability or whether it does what it claims. But so long as it does
not burn the environment, or allow little fingers to probe into live
parts, then that is all that is being tested.

peter
 
Chipperoni;3043234 Wrote:
Hi, I have a ceramic tube fuse that is stuck. The fuse blew last week
and is set inside a tube that is just barely larger than the fuse
diameter. The fuse is recessed about a 1/2" back. It's not magnetic
so a little magnet rod won't work. I've tried a little super glue o
the end of a nail head, but that didn't work either, the glue connectio
failed. It's really stuck. This happened once before and we ended u
tearing apart the fuse trying to dislodge it and in turn tore up th
housing. Cost us $125 to replace that. I'd prefer not to go that rout
again if it's avoidable. Any ideas???

Thanks!
Chip
Click to expand...
Well, after a couple days (and a trial run on another fuse) I attempte
the drill/screw/pull technique. I'm happy to say it was successful.
Here's what happened. There is a plastic ring that heat shrunk aroun
the middle of the fuse. The ring's purpose was to give the end ca
something to lock on to. So I got the fuse out, but the ring came wit
it. So now I have to figure out how to get the cap to stay depressed i
the unit so the fuse stays connected. A much easier problem to conten
with. Thanks for all the help


--
Chipperoni
 
"Baron" <baron@linuxmanic.net> wrote in message
news:kjv87u$mth$1@dont-email.me...
Chipperoni Inscribed thus:


Hi, I have a ceramic tube fuse that is stuck. The fuse blew last
week, and is set inside a tube that is just barely larger than the
fuses
diameter. The fuse is recessed about a 1/2" back. It's not magnetic,
so a little magnet rod won't work. I've tried a little super glue on
the end of a nail head, but that didn't work either, the glue
connection
failed. It's really stuck. This happened once before and we ended up
tearing apart the fuse trying to dislodge it and in turn tore up the
housing. Cost us $125 to replace that. I'd prefer not to go that
route
again if it's avoidable. Any ideas???

Thanks!
Chip


Drill a small 1mm hole in the end and use a barbed fish hook
straightened out, grip with pliers to pull it out.
Click to expand...
And if none of the suggestions so far get the fuse out - replacing the fuse
holder outright would be a *VERY* good idea!
 
"Chipperoni" <Chipperoni.bae74a8@diybanter.com> wrote in message
news:Chipperoni.bae74a8@diybanter.com...
Chipperoni;3043234 Wrote:
Hi, I have a ceramic tube fuse that is stuck. The fuse blew last week,
and is set inside a tube that is just barely larger than the fuses
diameter. The fuse is recessed about a 1/2" back. It's not magnetic,
so a little magnet rod won't work. I've tried a little super glue on
the end of a nail head, but that didn't work either, the glue connection
failed. It's really stuck. This happened once before and we ended up
tearing apart the fuse trying to dislodge it and in turn tore up the
housing. Cost us $125 to replace that. I'd prefer not to go that route
again if it's avoidable. Any ideas???

Thanks!
Chip

Well, after a couple days (and a trial run on another fuse) I attempted
the drill/screw/pull technique. I'm happy to say it was successful.
Here's what happened. There is a plastic ring that heat shrunk around
the middle of the fuse. The ring's purpose was to give the end cap
something to lock on to. So I got the fuse out, but the ring came with
it. So now I have to figure out how to get the cap to stay depressed in
the unit so the fuse stays connected. A much easier problem to contend
with. Thanks for all the help!
Click to expand...
Sounds like that fuse holder will just be a PITA again at some later date -
best bet is replace it with one that isn't a bit dodgy.
 
On Mon, 08 Apr 2013 20:15:01 -0400, Jamie
<jamie_ka1lpa_not_valid_after_ka1lpa_@charter.net> wrote:

Chipperoni wrote:

Hi, I have a ceramic tube fuse that is stuck. The fuse blew last week,
and is set inside a tube that is just barely larger than the fuses
diameter. The fuse is recessed about a 1/2" back. It's not magnetic,
so a little magnet rod won't work. I've tried a little super glue on
the end of a nail head, but that didn't work either, the glue connection
failed. It's really stuck. This happened once before and we ended up
tearing apart the fuse trying to dislodge it and in turn tore up the
housing. Cost us $125 to replace that. I'd prefer not to go that route
again if it's avoidable. Any ideas???

Thanks!
Chip

get a 6/32 start tap (tapered) and proper drill bit, something tells
me it maybe a #29 but don't quote me on that one. Drill a hole in the
end cap of the fuse, and then try to tap it. Use the tap or a 6/32 screw
to gently pull it out.
Click to expand...
I like this but don't think you need the tap. It's hard to tap sheet
metal anyhow. Drill the hole, use a sheet metal screw that at the
hole's diameter is still getting bigger, screw it in until it's hard
to screw, pull it all out with needle nose.
Jamie
Click to expand...
 
micky wrote:
On Mon, 08 Apr 2013 20:15:01 -0400, Jamie
jamie_ka1lpa_not_valid_after_ka1lpa_@charter.net> wrote:


Chipperoni wrote:


Hi, I have a ceramic tube fuse that is stuck. The fuse blew last week,
and is set inside a tube that is just barely larger than the fuses
diameter. The fuse is recessed about a 1/2" back. It's not magnetic,
so a little magnet rod won't work. I've tried a little super glue on
the end of a nail head, but that didn't work either, the glue connection
failed. It's really stuck. This happened once before and we ended up
tearing apart the fuse trying to dislodge it and in turn tore up the
housing. Cost us $125 to replace that. I'd prefer not to go that route
again if it's avoidable. Any ideas???

Thanks!
Chip


get a 6/32 start tap (tapered) and proper drill bit, something tells
me it maybe a #29 but don't quote me on that one. Drill a hole in the
end cap of the fuse, and then try to tap it. Use the tap or a 6/32 screw
to gently pull it out.


I like this but don't think you need the tap. It's hard to tap sheet
metal anyhow. Drill the hole, use a sheet metal screw that at the
hole's diameter is still getting bigger, screw it in until it's hard
to screw, pull it all out with needle nose.
Click to expand...
Well I always have a portable tap drill set with a battery operated
drill in my tool set, it isn't much (small) but it gets me by. I also
use it for screw and nut driver functions. Using the tap to extract an
end cap of a fuse would be handy for me since I would already have it..

Also, depending on how deep the fuse end would be, would determine if
a skinny sheet metal screw long enough to reach would be available.


Jamie
 
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