The Craftmans Shop > New from Old
Thwaites 2 Ton Two Cylinder Dumper Running On One Cylinder
lordedmond:
--- Quote from: awemawson on December 03, 2015, 05:46:25 AM ---It's not that relentless Stuart :clap:
However just as things seem to be going well, there's always a 'Gotcha' to come along and nibble your nether regions :bugeye:
Only alternative I can see at the moment is somehow to cut the head off the bolt in-situ, and install the new one the other way up, but cutting through a 1" bolt in a very cramped spot won't be easy.
--- End quote ---
Andrew
Get the vet over they have just the thing embryotome would do it :Doh:
Stuart
AdeV:
OK, this may be a bit too extreme... but let's see:
First, undo and remove the nut.
Second, gas-axe/plasma-cut a piece of the upper plate out, sufficient that you can lift the pivot up a bit
Gas-axe/plasma the bolt head off, between the pivot and the lower plate. Presumably the remnants of the bolt will then fall past the prop & out of your way. If the rest of it doesn't follow, push it through.
Weld cut-off back into place.
Install new nut/bolt the right way up.
I guess it depends if you want to cut the plate or not, it looks pretty thick to me.
awemawson:
Well chaps many thanks for your interest and suggestions :thumbup:
There was of course only one way really to do this - drop the transfer box - just get on with it and don't be a wimp :ddb: I reckoned that if I disconnected the short propshaft at the gearbox end, there should be enough travel in the splines of the other two propshafts just to lower the transfer box enough to remove the offending bolt.
So rather reluctantly I crawled under and started spannering. Propshaft was easy - there were only three loose bolts in the four bolt flange :bugeye: The four bolts holding the transfer box comprised two easy ones, one that was a bit of a challenge, and one the was a nightmare - but I got there in the end and managed to lower the transfer box on the trolley jack, and prop it up on bits of timber, as the jack was needed to get the chassis on axle stands.
awemawson:
Then,having put axle stands under the chassis I put the tourniquets back, and carefully tweaked them so that the top pivot bar assembly was in the middle of its play so that there was no strain on the big mounting bolts.
awemawson:
This is where I should have been able just to unbolt the old pivot and pull it out. But lifes rarely like that is it :hammer:
The front bolt was fine, but the rear one refused to budge. It's nut unscrewed ok, but with loads of 'Plus-Gas', much hammering on spanners, and heating with the oxy-acetylene torch it wasn't moving one iota. Even a 14 lbs sledge hammer failed to knock it through :bang: Having exhausted all other possibilities I decided to drill it out using the mag drill.
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