The Craftmans Shop > New from Old
Thwaites 2 Ton Two Cylinder Dumper Running On One Cylinder
awemawson:
Then the fun began. Firstly the magnet switch on the drill decided now was the time to weld it's contacts in the 'on' position. This made positioning it rather difficult. However, as there was a grease bore down half the length of the bolt, at least there was something for the drill to follow.
As I went progressively up in size I got to a point where the drill was wandering dangerously off centre, threatening to mar the mounting bushes. So I stopped with the bigger drills (I think I'd got up to 18 mm on a 1" bolt), and went right through with a 1/2", so leaving me a shoulder inside to put a drift against. Then I got the oxy-acetylene torch out again and heated through the hole downwards, so at least the stuck bit was getting the flame.
A short length of rebar as a drift and the sledge hammer at last persuaded the bolt to move downwards - what a palaver :bugeye:
awemawson:
Quelle relief !
So now I transferred the adjusting / limiting bolts from the old to the new pivot, making sure that they were set to the same height as before. No idea how this is supposed the be adjusted so I thought it best to accurately copy how it was set. I then installed the new pivot, which went ok apart from getting the grease seals in place - they got there eventually but trying to squash two grease seals and slide the pivot bar at the same time was great fun :clap:
Then back under and bolt the transfer box and propshaft flange back, along with the steering ram. (I'd removed the ram in case the front and rear of the dumper had moved apart, as it might well have bent the ram)
awemawson:
Now those who've been paying attention will notice I've put the rear pivot bolt in just as the original one was. Matthew is quite correct, with it the other way up you cannot get at the grease nipple. In an ideal world I would have drilled the bolt all the way through, plugged the 'nut end' and tapped the head end for a grease nipple. But time was getting on, I was knackered, and I reasoned that it would last a good few years as it was.
So lack of light stopped play. Tomorrow the steering stanchion goes back on, then the steering orbitor, and a few odds and sods like floorboards.
I noticed that one of the hydraulic lines for the ram has suffered a bit, so if I have the correct fittings I'll crimp up a new one.
... so now it's time for a bottle of Ibuprofen and a wee dram as I have aches in places I didn't know that I had :clap:
awemawson:
A relatively easy morning today. I bolted back the steering stanchion, installed the steering orbitor and checked that it all still worked. Then removed the temporary 'tourniquet' brackets, and bolted back the floor.
awemawson:
While I was fitting the steering orbitor I noticed that it's shaft oil seal was weeping. Seems to be an externally fitted 1" shaft 1 3/4" o/d of perhaps 1/4" or 3/8" thick. I ordered some up but carried on installing it as it's only 4 bolts to drop it off in the future when they arrive.
Also the pipes to the steering ram were pretty horrid - as they were previously fitted they were squashed at a difficult angle against the floor. Having raised the orbitor a bit they fit much more comfortably, but needed replacing. Fortunately I had the correct fittings and hose in stock so crimped up a new pair.
With the new stanchion arrangement the wheel is perhaps a bit to far forwards - I may have to work out how to move the seat forwards a bit.
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