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Colchester Student Mk1 Won't Start

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Phil Whitley15/04/2020 12:49:57
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1194 forum posts
145 photos

Yes, thats the one I thought was best, get it in cool white. they are expensive for what they are, and I get the impressiom that you are paying a premium price because they are for boats etc! The only alternative would be to buy one of these https://www.plugsocketmuseum.nl/OldBritish4.html (pic No3) you may even have one, I think I have a few kicking about, or junk shop etc, when normality returns. and then attach a lampholder or direct wire an led of your choice, that is cheaper that the BC one, nearly £8 for that is a bit toppy, but then I am extremely tight witth money!!

Stay healthy,

Phil.

Phil Whitley15/04/2020 13:49:57
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1194 forum posts
145 photos

or one of these, https://www.ledkia.com/uk/buy-conventional-e27-led-bulbs/6421-a60-e27-6w-led-bulb-1224v.html?gclid=EAIaIQobChMIuY2fjbvq6AIVmpntCh3WVQa_EAQYAyABEgJ1tvD_BwE&gclsrc=aw.ds

and one of these,

https://www.ebay.co.uk/p/2101058626?iid=401236754542&chn=ps&norover=1&mkevt=1&mkrid=710-134428-41853-0&mkcid=2&itemid=401236754542&targetid=876487124366&device=c&mktype=pla&googleloc=1006514&poi=&campaignid=9441124701&mkgroupid=91043569850&rlsatarget=pla-876487124366&abcId=1140496&merchantid=109772786&gclid=EAIaIQobChMIu9Wd9Lvq6AIVTO7tCh00BgnZEAQYAyABEgJrdfD_BwE

MUCH CHEAPER! just like me!!

Edited By Phil Whitley on 15/04/2020 13:51:54

Richard Kirkman 115/04/2020 14:21:33
226 forum posts
503 photos

I've just ordered it. I didn't fancy messing around with the fitting. Less faff so worth the cost.It shouldn't need replacing any time soon.

The lady with the spare parts finally got back to me today, she's out of work because of the virus so hopefully, they'll have enough time to get me the parts. She said she didn't want much for them as they'd just be going to scrap. But considering that just the original apron handwheel from a spares shop would be £120 then I'll just give her a fair amount for her time. Once I get the parts I'll have a root through, they're sending me a lot of parts. the whole compound I think. I'm going to need to find some heavy postage. Once I've rooted through, I'll put the rest of the parts on here so people can see if they want anything. Then I'll post you the gasket material with any parts you want Phil.

Lighting transformer just arrived. I don't quite know how it needs to be wired

Richard Kirkman 115/04/2020 14:23:29
226 forum posts
503 photos

It's just this one

la-333350596060&gclid=Cj0KCQjw4dr0BRCxARIsAKUNjWRLNZLZZGCJ8vrN3kF072mHOC_0dFzAADs2OYdU9DkxOofI83QlyukaAlWKEALw_wcB&gclsrc=aw.ds">**link**

Phil Whitley15/04/2020 15:03:21
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1194 forum posts
145 photos

You are probably right about the led bulb, it should last virtually forever, and if it doesnt, bounce it back at that price! The link isn't working, but basically you connect the input 415v side to the slidelock fuses (fuse at 5 amp), and connect the 240v out to your led transformer and the output of the led transformer straight to the light. Check the wiring to the light is ok as they sometimes have old TRS rubber cable to the lampholder, which perishes and shorts out in an oily atmosphere, particularly at the back of the lampholder where it gets warm.

Phil

Richard Kirkman 115/04/2020 16:11:52
226 forum posts
503 photos

Okay yes I have 2 wires to put in. So do I put one into the 415v hole and 1 into the 0v hole?

I have 4 holes in the orange bit I can use

0v 380v 400v 420v

And I have 2 wires from the slide lock fuses. So which go where?

I have the low voltage transformer attached to the top. That's fine since 2 holes for 2 cables is nice, I can do that

Phil Whitley15/04/2020 16:25:46
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1194 forum posts
145 photos

2 wires from the slydloc fuses, one into 420 and one into 0V , watch out for cooling, both tramsformers tend to rum fairly warm, and the led units run qiote hot as they are somtomes capacitance mains droppers.

Phil Whitley15/04/2020 16:27:00
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1194 forum posts
145 photos

I am typing with an allo allo fronch accint!

Richard Kirkman 115/04/2020 17:26:44
226 forum posts
503 photos

I didn't realise you were a police man!

I'll have a go at the wiring

Hopefully I shall wire it only once

Phil Whitley15/04/2020 18:36:14
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1194 forum posts
145 photos

laugh

Richard Kirkman 115/04/2020 21:03:10
226 forum posts
503 photos

Any issues with this? Or does it all look fine

Also, how can I test this without having a bulb?

img_20200415_194743.jpg

img_20200415_194754.jpg

Phil Whitley16/04/2020 11:06:30
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1194 forum posts
145 photos

looks good to me, can you check for voltage at the back of the lampholder, otherwise, you will have to be patient and wait for the bulb.

Phil

Phil Whitley16/04/2020 11:28:52
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1194 forum posts
145 photos

Actually I would use the 420v hole to be on the safe side, phases from the phase convertor may not be perfectly balanced voltages!

Richard Kirkman 116/04/2020 18:50:25
226 forum posts
503 photos

I'm not getting continuity between the slide lock fuses for the lighting bit.

I'm also not getting continuity over the transformer, but I think that's normal?

Phil Whitley16/04/2020 20:05:06
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1194 forum posts
145 photos

Fuses blown? I think they are rewirable types, 5 a fusewire. If it never had the transformer fitted there is a possibility that there is no wire ever been fitted in the fuses.. Testing the transformer, you will get continuity between 0v and the tappings on the input side, and ov and 240 on the output side, there is no connection across the transformer,  the magneticc field created by the primary induces the output voltage in the secondary.

Phil

 

Edited By Phil Whitley on 16/04/2020 20:15:28

Richard Kirkman 116/04/2020 20:40:54
226 forum posts
503 photos

Looks like my grandpa is helping from the great beyond. There's some fuse wire in his old tool box. I'll do that tomorrow

img_20200416_203703.jpg

I'll check for continuity between 0v and 240v tomorrow as well

Richard Kirkman 117/04/2020 22:03:15
226 forum posts
503 photos

Good progress today, fixed the fuses so they work now.

Then the grommets and cable arrived for the phase converter so that's perfect now, it's on wheels as well so it can be moved around for sweeping and things.

img_20200417_135458.jpg

img_20200417_135542.jpg

img_20200417_135642.jpg

img_20200417_141600.jpg

Much longer

img_20200417_144943.jpg

img_20200417_151600.jpg

Then the replacement bearings arrived

img_20200417_102426.jpg

So I cleaned the coolant pump properly and put it all back together

img_20200417_161318.jpg

Then, the precision level I found arrived as well. So I'll be able to measure the lathe bed when I get around to it

img_20200417_190130.jpg

The height gauge I ordered also arrived, but I've never used a height gauge like this before so I may have some questions once I've cleaned it up

The coolant pump runs a lot quieter now

Before new bearings

After new bearings

Phil Whitley18/04/2020 12:39:00
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1194 forum posts
145 photos

That sounds better, you've advanced a tech level!

Phil

Richard Kirkman 118/04/2020 13:11:12
226 forum posts
503 photos

Well if I've almost done two years of a mechanical engineering degree then I probably should be able to take something to pieces, clean it, and put it back together again!

I may need a break from the lathe to chop up some logs and prep them for bowl blanks. Break from a lathe to another lathe. Not as nice of a lathe, but more suitable for the job!

Phil Whitley18/04/2020 14:42:34
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1194 forum posts
145 photos

"Well if I've almost done two years of a mechanical engineering degree then I probably should be able to take something to pieces, clean it, and put it back together again! "

Well, yes, but I have known a lot of ppl with technical degrees who were practically useless! good to see that you are definitely not one of them! Does your degree involve any practical "workshop" time? Do you do a "year in industry" I am out of the loop now, so have no contact with the industry any more! Be carefull with that wood, dangerous stuff! Phil.

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