| The Craftmans Shop > New from Old |
| Resurrection of a CFEI 100 KVA Induction Furnace |
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| mc:
Page 9 is apparently too big for the viewer? |
| mc:
And what you really want is a manhole lifter. Utility engineers who deal with underground pipes/cables should have them in their vehicles. You really want an Openreach cabling engineer though, as they carry hydraulic lifters. |
| AdeV:
Cut a new one from steel plate, using your plasma cutter table... then have at the old one with the biggest hammer you own :) :med: |
| awemawson:
Wow Morray how did you do that ? Thank you so much - all the various browsers that I tried would only open half a page at a time. Yes a hydraulic lifter probably is the way unless I take the Ade approach, which I must say I have considered ! This morning I welded up a simple slide hammer from some re-bar and a bit of 8 mm plate - it's not strong enough, as you can see in the picture the Tee bar is bending. Ideally I'd use Pete.s approach with an HT bolt with the head cut down, but I don't have any 1" HT bolts in stock so I used what's to hand. I will try again with something a bit stronger, but by golly this lid is well and truly stuck ! |
| awemawson:
I followed up on the Slide Hammer with a bit of controlled violence from a Kango concrete breaker, the idea being to vibrate and hopefully crack, the rust bond between the cover and it's frame. The Plus-Gas IS penetrating into the lid/frame gap most of the way round but it's still not anything like free. I suppose in extremis I could try breaking the concrete round the frame, and digging out the complete frame with lid, an then leave it soaking in Citric Acid for a few weeks :scratch: |
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