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British Ajax AJT4 mill lube blockage, rwemedy?
This mill was made in Spain in 1989, motors by Andia. The lube pump (and lube system?) is Intza, has a sight glass on the front of the pump. It seems to pump too large a volume at each stroke but that may not be the case when I get all the points connected... I have connected 8 lube points for... -
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British Ajax AJT4 mill lube blockage, rwemedy?
Thank you, I will try that. This is some of the crap I found in the lube reservoir: I have re-piped the knee today, I had one restrictor playing silly, got it clear in the end. I can now wind the knee UP by turning the bevel gear shaft by hand (without the handle). Very much better than... -
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British Ajax AJT4 mill lube blockage, rwemedy?
Hi this section seems closest to my question... I have recently bought an Ajax mill, about 1500Kg class INT4, the varydrive spring was broken and a trashed feed gearbox being the main issues. I now have the head working, seems good, have cut chips. Turning my attention to the feeds, the... -
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Buying Colchester Student 1800 Lathe with start issues (electronic and mechanical) UK
OK, update... The lathe is in position and levelled, I have removed the three phase motor and fitted the single phase motor which came with the lathe. The mounting plate in the base of the lathe was already drilled with the exact right holes for the single phase motor, four bolts and it's in...- Seapy
- Post #16
- Forum: Transformers, Phase Converters and VFD
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Buying Colchester Student 1800 Lathe with start issues (electronic and mechanical) UK
The deed is done, lathe now sat in my workshop, top off the gearbox for inspection and an oil change. It appears the holes for a clutch shaft are steady there with blanking plates sealing them off. Direct Drives are sending me the parts to utilise the original Colchester micro switches so I...- Seapy
- Post #15
- Forum: Transformers, Phase Converters and VFD
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Buying Colchester Student 1800 Lathe with start issues (electronic and mechanical) UK
There are many ways which could be used to add a clutch but I don't really feel like embarking on re-engineering the lathe, I feel sure it can be used as Colchester intended. If for no other reason but that they wouldn't have sold so many Student lathes had the method of operation been...- Seapy
- Post #14
- Forum: Transformers, Phase Converters and VFD
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Buying Colchester Student 1800 Lathe with start issues (electronic and mechanical) UK
OK, I have found and downloaded the manual for the VFD, 104 pages, not easy to read on my iPhone! It looks like I should be able to get the VFD to do what is required but I suspect programming may be a bit of a challenge for a 74 year old… LOL 😂 Many thanks for the input this far, much...- Seapy
- Post #12
- Forum: Transformers, Phase Converters and VFD
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Buying Colchester Student 1800 Lathe with start issues (electronic and mechanical) UK
I don’t do much with small shafts, one of the reasons why I want a larger lathe is for holding biggish irregular chunks of material in the four jaw chuck. I mentioned photography in my first post, I made myself an Astro mount to hold the camera steady locked onto a star or group of stars, it...- Seapy
- Post #11
- Forum: Transformers, Phase Converters and VFD
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Buying Colchester Student 1800 Lathe with start issues (electronic and mechanical) UK
I have tried to find the manual on-line without success as yet, I am sure the seller will have it and hand it over when I collect the lathe. The seller remarked that Drives Direct were very helpful in getting the lathe up and running, apparently there were star - delta issues to contend with...- Seapy
- Post #9
- Forum: Transformers, Phase Converters and VFD
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Buying Colchester Student 1800 Lathe with start issues (electronic and mechanical) UK
Thanks Peter, That I found hard to believe but I have confirmed what you said. The user manual refers to the ‘clutch’ lever on the apron controls. In fact it seems Colchester only fitted a clutch to the single phase version of which very few were made. The Student as the name suggests was...- Seapy
- Post #6
- Forum: Transformers, Phase Converters and VFD
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Buying Colchester Student 1800 Lathe with start issues (electronic and mechanical) UK
This is the exact same inverter… 3HP DIGITAL 240V to 415V 3 PHASE INVERTER CONVERTER for LATHE MILL DRILL SAW etc | eBay Robert- Seapy
- Post #2
- Forum: Transformers, Phase Converters and VFD
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Buying Colchester Student 1800 Lathe with start issues (electronic and mechanical) UK
Hello, am new here, you seem a very knowledgable and helpful bunch! I have owned several lathes going back to the 1970's, mainly Colchester. I am now retired but not tired of 'doing stuff'! Reasonably experienced with 3 phase but not expert with electronics. I currently own a Harrison lathe...- Seapy
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- Replies: 16
- Forum: Transformers, Phase Converters and VFD