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Resurrection of a CFEI 100 KVA Induction Furnace

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awemawson:
I've been swinging my not inconsiderable mass on the end of a 6 foot pry bar this morning, and no movement what so ever!

This afternoons job is to make a slightly more substantial slide hammer !

hermetic:
This may sound daft, but have you tried putting a couple of manhole keys in the slots, then putting a bar between them and trying to turn the manhole lid inside the frame, it occurs to me that those two prying slots could also be the holes for a couple of tabs to come out if the manhole cover is a bayonet type fitting, and locks down to the frame.
  I like the fire idea, but then, anything to do with fires.......... my late aunt used to say "the smell of smoke follows naughty boys"
Phil

awemawson:
Phil, There is a location tab that stops it rotating and ensures correct alignment.

But never mind:

We Have A Borehole

I made up my more substantial slide hammer, and even using it like a maniac for quite some time had no effect. In places I could get a hacksaw blade into the gap the full two inches of cover thickness, but elsewhere it would not go in at all - managed to clear a bit of debris using it but nothing substantial.

So I decided to use the slide hammer as an attachment and do a tentative lift with the Fork Lift to put tension on the cover - no lid movement what so ever, and continuing the entire massive concrete structure started lifting  :bugeye:

Clearing the turf away from round it, (to stop it falling into my nice water source!) I carried on lifting until a gap appeared showing WATER - lots of water !

Getting my cable drawing fibreglass duct rod, I tried pushing it down - there was a definite circular 'thing' in the centre under water - presumably a pipe, and I was able to push at least 20 maybe 25 metres down the hole before feeling any resistance. All this was at an odd angle as the concrete structure was balancing on one key (my slide hammer) off the fork lift.

Common sense told me to lower it back before there were any accidents  :clap:

So now I need to work out what's next  :scratch:

Sea.dog:
What a result  :beer:

Things are definitely looking good for the future of this project  :clap:

hermetic:
that manhole cover is REALLY stuck, but no matter, you have a supply of cool water! onward!!
Phil

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