An old friend finally gave up, here is the story of its restoration to
health:

http://wiki.diyfaq.org.uk/index.php?..._R eplacement


--
Cheers,

John.

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Refreshing to see something in this line that is repairable in an era where most things seem to be "throw away" or simply not cost effective to repair.

Richard

Almost anything could be repaird of course, but eh maker o

--
From the Sofa of Brian Gaff Reply address is active
"Tricky Dicky" wrote in message
...
Refreshing to see something in this line that is repairable in an era
where most things seem to be "throw away" or simply not cost effective to
repair.

Richard

Tricky Dicky wrote:
Refreshing to see something in this line that is repairable in an era where
most things seem to be "throw away" or simply not cost effective to repair.

I have two mains machines with failed armature windings that I would
love to fix.

In one case (a Bissell vacuum cleaner) the replacement motor is no
longer obtainable even though it's only a few years old. No chance of
just getting an armature.

In the other case (a Ryobi strimmer) a replacement motor is available
but it costs just about the same as a complete new strimmer.

Is there no one anywhere offering a rewind service for this type of
small armature? I'd guess there's pretty generic machinery for doing
the winding as there are zillions of these little motors around. I'd
happily pay £25 to £35 for such a repair as both machines are good
enough in other ways to want to preserve them.

--
Chris Green
·

On Friday, July 3, 2015 at 8:52:00 AM UTC+1, Brian-Gaff wrote:
Almost anything could be repaird of course, but eh maker o

--
From the Sofa of Brian Gaff Reply address is active
"Tricky Dicky" wrote in message
...
Refreshing to see something in this line that is repairable in an era
where most things seem to be "throw away" or simply not cost effective to
repair.

Richard


I dropped a Makita battery and the bottom half of the casing came adrift. It had been glued in place. Having little faith in re-glueing it I riveted it back together. (Because the cover was hexagonal and the battery pack was round there was room for a rivet in the corners.) Still going strong

On 03/07/2015 09:04, wrote:
Tricky Dicky wrote:
Refreshing to see something in this line that is repairable in an era where
most things seem to be "throw away" or simply not cost effective to repair.

I have two mains machines with failed armature windings that I would
love to fix.

In one case (a Bissell vacuum cleaner) the replacement motor is no
longer obtainable even though it's only a few years old. No chance of
just getting an armature.

In the other case (a Ryobi strimmer) a replacement motor is available
but it costs just about the same as a complete new strimmer.

Is there no one anywhere offering a rewind service for this type of
small armature?

Google gets a number of hits, although the company I used to use does
not appear to be among them. This company looks as though it knows what
it is doing, but I have no personal experience of them:

http://www.robsonandfrancisrewinds.co.uk/

I'd guess there's pretty generic machinery for doing
the winding as there are zillions of these little motors around. I'd
happily pay £25 to £35 for such a repair as both machines are good
enough in other ways to want to preserve them.

IME, rewinds are only economic if there really is no alternative motor
available, as with a surface grinding machine I had, where the motor
casing was part of the main machine casting.

--
Colin Bignell

Nightjar "cpb"@ insert my surname here.me.uk wrote:
On 03/07/2015 09:04, wrote:
Tricky Dicky wrote:
Refreshing to see something in this line that is repairable in an era where
most things seem to be "throw away" or simply not cost effective to repair.

I have two mains machines with failed armature windings that I would
love to fix.

In one case (a Bissell vacuum cleaner) the replacement motor is no
longer obtainable even though it's only a few years old. No chance of
just getting an armature.

In the other case (a Ryobi strimmer) a replacement motor is available
but it costs just about the same as a complete new strimmer.

Is there no one anywhere offering a rewind service for this type of
small armature?

Google gets a number of hits, although the company I used to use does
not appear to be among them. This company looks as though it knows what
it is doing, but I have no personal experience of them:

http://www.robsonandfrancisrewinds.co.uk/

Thanks for the link, I'd tried Google searches but it's very difficult
to decide if a particular company can/will rewind small armatures,
most (not unreasonably) seem to only do big motors.


I'd guess there's pretty generic machinery for doing
the winding as there are zillions of these little motors around. I'd
happily pay £25 to £35 for such a repair as both machines are good
enough in other ways to want to preserve them.

IME, rewinds are only economic if there really is no alternative motor
available, as with a surface grinding machine I had, where the motor
casing was part of the main machine casting.

Quite, I'd replace the motor/machine if it was more economical or
possible.

What sort of ball-park figure would you expect for the cost of a rewind?

--
Chris Green
·

On 03/07/2015 02:20, John Rumm wrote:
An old friend finally gave up, here is the story of its restoration to
health:

http://wiki.diyfaq.org.uk/index.php?..._R eplacement



Oh and I thought for a minute there you were going to show us an
armature rewind!

When I worked in an industrial research lab, we had a guy who could do
this. I don't know if he ever did them for "work" but you could take him
a car dynamo or just about anything else.

Come to think of it, there were people there who could mend anything!
Several superb welders, a glassblower, etc.

On 03/07/2015 11:16, wrote:
....
What sort of ball-park figure would you expect for the cost of a rewind?

Long time since I had it done, but IIRC, it was about 50% dearer than
buying a new 3 phase industrial motor of the same power. It was a lot
cheaper than buying a new surface grinder though.

--
Colin Bignell

On 03/07/2015 11:30, newshound wrote:
On 03/07/2015 02:20, John Rumm wrote:
An old friend finally gave up, here is the story of its restoration to
health:

http://wiki.diyfaq.org.uk/index.php?..._R eplacement




Oh and I thought for a minute there you were going to show us an
armature rewind!

Not at £26 for a shiny new one!

(there is a local motor service place I have used before, but I doubt
they could match that price...)

When I worked in an industrial research lab, we had a guy who could do
this. I don't know if he ever did them for "work" but you could take him
a car dynamo or just about anything else.

Come to think of it, there were people there who could mend anything!
Several superb welders, a glassblower, etc.


--
Cheers,

John.

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| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

Oh and I thought for a minute there you were going to show us an
armature rewind!

Not at £26 for a shiny new one!

Thats one thing that steers me in the direction of that maker, the fact
that you can get spares and reasonable prices.

Mind you I've had my Mak SDS for must be 8 years now and its still fine
on the original armature yet after years of punishment..

So much so just bought a 115 mm angle grinder off them was only around
40 quid from Tool Satan much better quality than the cheapies..


(there is a local motor service place I have used before, but I doubt
they could match that price...)

When I worked in an industrial research lab, we had a guy who could do
this. I don't know if he ever did them for "work" but you could take him
a car dynamo or just about anything else.

Come to think of it, there were people there who could mend anything!
Several superb welders, a glassblower, etc.



Very useful to have around...
--
Tony Sayer

On 03/07/2015 20:21, tony sayer wrote:

Oh and I thought for a minute there you were going to show us an
armature rewind!

Not at £26 for a shiny new one!

Thats one thing that steers me in the direction of that maker, the fact
that you can get spares and reasonable prices.

You would probably get a similar experience with DeWalt or Blue Bosch
etc... But yup, Mak spares are usually available even for quite old
models.




--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
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| John Rumm - john(at)internode(dot)co(dot)uk |
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In message , writes

Is there no one anywhere offering a rewind service for this type of
small armature?

Yes. Armature rewinding is a large part of 0 gauge and larger old toy
train restoration. Two known experts in the UK are Geoff Brown in
Lincoln and Nat Donnelly in Manchester, although whether either would be
interested in non train items is unknown. The point is, though, that
there are people out there with the equipment and expertise. Doubtless
there are others in, say, classic cars or similar.

--
Graeme

News wrote:
In message , writes

Is there no one anywhere offering a rewind service for this type of
small armature?

Yes. Armature rewinding is a large part of 0 gauge and larger old toy
train restoration. Two known experts in the UK are Geoff Brown in
Lincoln and Nat Donnelly in Manchester, although whether either would be
interested in non train items is unknown. The point is, though, that
there are people out there with the equipment and expertise. Doubtless
there are others in, say, classic cars or similar.

For that matter is it possible to hand wind such armatures?

--
Chris Green
·

wrote:
wrote:
In , writes

Is there no one anywhere offering a rewind service for this type of
small armature?

Yes. Armature rewinding is a large part of 0 gauge and larger old toy
train restoration. Two known experts in the UK are Geoff Brown in
Lincoln and Nat Donnelly in Manchester, although whether either would be
interested in non train items is unknown. The point is, though, that
there are people out there with the equipment and expertise. Doubtless
there are others in, say, classic cars or similar.

For that matter is it possible to hand wind such armatures?


Yes, they can be handwound, seen it done for a dynamo, IIRC however you
need to pass a large current through the finished winding to give the
iron some residual magnetism. May be wrong about the latter, can anybody
confirm?

In article ,
Capitol writes:
wrote:
wrote:
In , writes

Is there no one anywhere offering a rewind service for this type of
small armature?

Yes. Armature rewinding is a large part of 0 gauge and larger old toy
train restoration. Two known experts in the UK are Geoff Brown in
Lincoln and Nat Donnelly in Manchester, although whether either would be
interested in non train items is unknown. The point is, though, that
there are people out there with the equipment and expertise. Doubtless
there are others in, say, classic cars or similar.

For that matter is it possible to hand wind such armatures?


Yes, they can be handwound, seen it done for a dynamo, IIRC however you
need to pass a large current through the finished winding to give the
iron some residual magnetism. May be wrong about the latter, can anybody
confirm?

I don't know that it needed to be a particularly high current. With
car dynamos, you passed a current through whilst gently tapping it
with a hammer to shake up the magentic nodes in the metal. Most often
this was done if you wanted to change the polarity of the electrical
system from +ve chassis to -ve chassis car, which required reversing
the output polarity of the dynamo.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]