The Shop > Tools
Harrison L5 rescue
micktoon:
I have got more done to the lathe today, it does not look like much on photos but there has been lots of thinking of what will fit where and where cables have to go etc . Then lots of drilling holes for cable glands and also mounting things so tapping half them and just bolting others. The main rear alloy plate is some horrible gummy type alloy and just clogs drills and hole saws up so I have had to use WD40 on them which is last thing I wanted with painting being one of the next stages but no way around it really and the lathe still needed a good de -grease anyway.
This is the switch panel box with most of the holes drilled , the reason for drilling the larger holes in the box is the threaded part of the cable glands are not long enough to pass right through the backing plate and the box so I needed space for the securing nut on the back of the glands.
The way I am doing it I will be able to paint the bracket , backing plate and box then re assemble and wire everything up off the lathe then just mount the whole lot pre wired and plug in the motor , lamp , suds pump and just have the flex to the knee height emergency switch to connect, this way it can all be done, then put out the way until the rest of the lathe is done, also in the future if any component fails it should be able to be unplugged and took off with out opening the switch panel up.
This is the rear of the panel , the motor will plug into the red socket on the back here, I will also have flexes with plugs on them for the coolant pump and the lo - volt lamp.
The finished switch panel will look something like this , there is room to make labels above each switch on the panel, the two big switches at the bottom will be for the coolant and the lamp , they are much heavy duty than needed but were cheap. Then there is stop , start , below these are forward/ reverse and speed control as well as the main isolator and power on light.
Next job is to get all these bits ready for primer ........... then paint them grey.
Cheers Mick.
doubleboost:
Looking good Mick :thumbup: :thumbup: :thumbup: :thumbup: :thumbup: :thumbup:
John
micktoon:
Good Evening All , Well at long last I have got a bit more done to the Harrison. I have done various things without photos , like diamond filing the burs off every single cog tooth in the whole gearbox ....... not a five minute job , I have all new bearings for the spindle and new oil seals and generally cleaned and inspected everything. I managed to get the gear cog I needed to replace because of chipped teeth, thanks are due to Peter ( Bacup Hillbilly ) who had a spare gear cog and shaft , the holes in the clutch plates are oval and the pins worn, this was making the clutch grab and sometime not disengage , I have got new roller bearing pins and Rob Wilson is kindly going to drill and press the new pins in ( I was not confident of doing a good job of it ) Cheers Rob. The other part that was worn was a brake pad disc that is operated by the clutch lever, I did not even know it was there so have never used it ! It had wore down to the countersunk fixing bolts was was steel on steel not bronze on steel. The original was made of a bronze type brake material with particles inbedded in it, I could not get any of this so have made one out of bronze, it should still do the job.
This is the worn out part, the three holding coutersunk set screws had just been rubbing.
2 inch bronze bar, skimmed to size.
Drilled out in a couple of stages to almost the right ID , the drill is car boot job , rusty but sharp where it counts !
I marked out the three holes and drilled them on the Bridgeport.
I then skimmed the top surface so it was the right depth to the countersink s, then parted off.
The new disc in place along side the old one, its only after looking at this photo I think I might mill the three recessed flats into it as per the original so it has even contact with the steel collar it presses against , as it is it might wear uneven around the holes ? it wont do any harm to do it anyway.
Cheers Mick
micktoon:
:update: I have milled that disc so its like the original part , not much else done but hope to get more done this week.
Cheers Mick
gndurant:
Hi Mick,
Fantastic thread! I'm rebuilding a Centec mill at the moment, so your experiences are particularly apt for me right now. You've done a cracking job so far, and I can't wait to see her finished!
In the meantime, I just wondered what your plans for painting are? I always struggle at that point, having no spray facilities. During previous machine rebuilds I've tried brushing machine enamel and also experimented a little with foam rollers, the latter with positive if mixed results. I noticed you'd used mini rollers for your metal rack, hence wondered what you had in mind for the lathe? Unless of course you have the space and kit to spray?
Cheers
Graeme
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