The Shop > Tools
Harrison L5 rescue
micktoon:
Hi Nick, I have heard it mentioned by a few people that for the overall size of the lathe it had limited capacity and this is why they in the later models made the spindle larger bore. I think the lack of capacity was probably due to them being a training type lathe for schools ?
Mick.
NickG:
Yeah probably ... mine only has the low range of speeds too, probably for the same reason but it hasn't bothered me, it still seems to give cracking results.
Nick
micktoon:
Evening all, Well the new pully fitted and was the same diameter , keyway etc, except for only having two not three vee's so put another vee in it and turned the original motor bracket spacers down and put them under motor feet so its now sitting in the right position ( easiest solution Ade :clap: ). Tested the inverter and motor it is running fine and much more quiet than before too :thumbup:
I stripped the change gears off and gave the cover a clean off.
Took the alloy cover off and removed the clutch, pretty manky behind the cover as you would expect after god knows how many years.
Looking a bit better after a clean off and I can see what is what now.
Next job is to take spindle out and de burr the mushroomed edges on the gear teeth, the only drawing I have is very poor and hard to make out, so not too sure exactly the top and intermediate shafts are retained or what is the best way of getting them out :scratch:. A friend may have a better Harrison manual with better drawings so will keep my fingers crossed for that to turn up as could save a :palm: incident.
Mick.
micktoon:
Evening all , not got too much done due to other things getting in the way but have removed spindle and the pile of bits on the bench is getting bigger !
I had thought that the main cone shaped bull wheel gear would have been able to have been removed once the spindle was out , it looks like it would fit through the casing but the lower gear shaft will have to come out too so it can be tilted enough to get out the top of the headstock casing. I should be getting better drawings of what is holding what together tomorrow so have not gone any further up to now.
This is the part that will not fit through the gap. I am busy with other things again tomorrow so will post when more has happend :D
Mick.
micktoon:
More parts have been stripped and the lathe now looks like this
This is most of the internal parts and the apron and Norton box, once the headstock was stripped I thought I might as well go the whole hog and strip the lot bare :bugeye: :bugeye:
The worst part of stripping the headstock was a taper pin at the clutch end of the top gear shaft had to be knocked through this one here that has ground flush head.
The problem was it knocked almost out but not enough to fall out the shaft and jammed against a rib in the casting making it impossible to rotate the shaft and impossible to knock through any further or get back in :palm: :scratch: so after a bit thinking and trying to wiggle with pliers etc and no access to grind the far end of the pin shorter so it could get knocked through decided I would have to drill the casting to allow an exit hole for the pin
It worked a treat , I then tapped the hole 1/4 BSP
Then fitted taper plug kindly donated by my mate Dave to block the hole
Seems to have got the job done and if the pin did ever have to come out again could be taken back out for access. The only things that seem to need attention so far is the rear spindle bearing sounds a little noisey and a couple of the power feed take off gears look a bit chipped, I am going to clean and inspect everthing better tomorrow.
Cheers Mick.
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