On 30/11/21 2:38 am, MDR wrote:
Hi All,
Dead heating element on steam boiler. Broken free with impact wrench
and then unthreaded with regular ratchet.
I cannot get the element out of the boiler. The diameter of the
element coil winding seems to be greater than the threaded hole in the
bottom of the boiler ????? Any ideas? I can go the grinder route,
but that shouldn't be necessary.
Also, any other things to replace while it's torn down? I hate it when
one component fails and the machine goes out of service (for my wife
and me) for a week waiting for a part.
I have experienced a similar issue with a NS Oscar. The heating element
was coiled and the coils just expanded a tiny bit. One coil was the
primary problem - it was the site of the rupture of the element. The
Oscar has a copper boiler which is pretty thin and bendy, so I pulled
the element out as far as it would go and cut it off, then kind-of
'unwound' the spiral element with two pairs of angled pointy nosed
pliers. The inside of the element had a softish ceramic material that
made a mess but yielded to the bending. After a bit of wrangling, the
remaining coils kind of 'unscrewed out' the hole... I have to admit I
did look up the price and availability of a replacement boiler during
the exercise.....
If the fit is just a tiny bit off, it is probably just scale and oxide
build up. So as suggested: acid. I'd use citric rather than vinegar,
but that's just me :)
Cheers
/Kevin
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