ironplanet uk900 Posted September 3, 2007 Report Share Posted September 3, 2007 I have a DN76. The lock is working fine. and the tention appears to be fine. But I have a problem with it randomly leaving big loops for 3/4 stitiches, then stitching ok again. Been having a good look at it this morning, but haven't come to any conclusions. Link to comment Share on other sites More sharing options...
Lee Posted September 3, 2007 Report Share Posted September 3, 2007 I had a simular problem with my outsoler a few months back, the thread in the bobbin had got pulled so that it was catching on itself, try re-loading the bobbin. Lee Link to comment Share on other sites More sharing options...
keithm Posted September 3, 2007 Report Share Posted September 3, 2007 May i suggest the following Mark. Try adjusting the needle between 2 and 3 o'clock, or change it. Look closely at the splitter as the misalignment with the needle can cause missed stitches. Replacing the splitter can be helpful. Also check that all the rollers are moving feely, WD40 works a treat and doesn't clog Giving your machine a good once over the working parts with WD40 can work wonders and should be done on a regular basis anyway especailly around the shuttle slides and springs at the bottom of the horn. Clear the crap out first though Hope this helps. If you still have problems give us a call. Keith Link to comment Share on other sites More sharing options...
Lee Posted September 3, 2007 Report Share Posted September 3, 2007 Keith, I have always used engine oil on my outsoler & blake machines, meticulously oiling the oilways & moving parts etc. Is it OK to use such a thin oil as WD40 on these machines? a blast with a wd scraw would be far more fun! Lee Link to comment Share on other sites More sharing options...
ironplanet uk900 Posted September 3, 2007 Author Report Share Posted September 3, 2007 May i suggest the following Mark. Try adjusting the needle between 2 and 3 o'clock, or change it. Look closely at the splitter as the misalignment with the needle can cause missed stitches. Replacing the splitter can be helpful. Also check that all the rollers are moving feely, WD40 works a treat and doesn't clog Giving your machine a good once over the working parts with WD40 can work wonders and should be done on a regular basis anyway especailly around the shuttle slides and springs at the bottom of the horn. Clear the crap out first though Hope this helps. If you still have problems give us a call. Keith Hi Keith, They aren't missed stitches, its just that the stitch isn't pulled down. as if the tension is lost for a few stitches and leaves a 1" loop, But as I said the Lock seems to be working fine, and there is enoungh tension on the wheel. Link to comment Share on other sites More sharing options...
keithm Posted September 3, 2007 Report Share Posted September 3, 2007 Lee, I always used WD40 to clean, then a light coating of 'Duckoil' made by Duckams for lubrication. Engine oil is a little heavy imho, but will do it no harm of course, other than clogging as the dust and bits of leather start sticking to it. WD40 dissolves over time Everytime I used the stitcher, I would coat the needle, awl and shuttle with WD40 to helpd the stitching along. I rarely had a problem with my stitchers and rarely even replaced the needle or awl Nowt like a 'wet' stitcher Dry ones covered with dust and bits of leather never usually work well and suffer with problems 'Chuckles as most of you go and look at your stitchers' Mark Maybe that lock isn't locking as you think it is? What thread are you using? Keith Link to comment Share on other sites More sharing options...
ironplanet uk900 Posted September 3, 2007 Author Report Share Posted September 3, 2007 Geneva thread Link to comment Share on other sites More sharing options...
Lee Posted September 3, 2007 Report Share Posted September 3, 2007 try re-loading the bobbin. Lee I meant it! had exactly the same thing! Lee Link to comment Share on other sites More sharing options...
ironplanet uk900 Posted September 3, 2007 Author Report Share Posted September 3, 2007 Sorry Lee, meant to reply, Ive checked the bobbin but thats fine. Link to comment Share on other sites More sharing options...
Lee Posted September 3, 2007 Report Share Posted September 3, 2007 If you pull the thread away from the bobbin, it will come smoothly then snag. Reload it & the machine will be OK..... Lee Link to comment Share on other sites More sharing options...
ironplanet uk900 Posted September 3, 2007 Author Report Share Posted September 3, 2007 F... O.. Link to comment Share on other sites More sharing options...
Lee Posted September 3, 2007 Report Share Posted September 3, 2007 F... O.. had to laugh at that one! Lee Link to comment Share on other sites More sharing options...
ironplanet uk900 Posted September 3, 2007 Author Report Share Posted September 3, 2007 wheres Peter Link to comment Share on other sites More sharing options...
Hugh-Candoit (ENG) Posted September 3, 2007 Report Share Posted September 3, 2007 When you say it stitches OK how much distance does it cover before it starts to loop? It seems very much like an intermitant tension problem on the bottom thread. Check the spring/s inside the head where the thread goes over the roller, sticking springs inside the horn, or outside as in the case of a Fimac can cause this problem, not saying that it is this though as it will probably be something very simple like the thread not being gripped at the right time (slippage). The picture in my mind of the workings are now getting quite vague, cant seem to zoom in on the feed tension. Link to comment Share on other sites More sharing options...
petercoulson Posted September 3, 2007 Report Share Posted September 3, 2007 Here, been busy today. DN76's are terrific machines but locking system can be a bit of a nightmare but great when set properly. How it should work: the lock plate is a pad on an arm underneath that pushes forward at a certain point and traps the thread (if threaded correctly) as you appear to know. if you turn your machine by hand with a finger on this pad to feel movement it should come forward when the needle is on its way down and the thread has just come off the shuttle. at this point the arm should pull the thread down as well, these all need to time together to work properly. quite often this is not the case but it doesnt show for some time because the tension on the thread takes care of it. if this is set right there should be hardly any tension on the thread. if the lock is not operating at the correct point now is the time to have a cup of tea. if you feel confident enough to do yourself let me know and i will post a tutorial (tried explaining here then realised how complicated it was getting!) if not call us or standards and get someone to do it for you: when you are sure the plate is forward trapping the thread try pulling it through as you would normally if it pulls lock needs adjusting. *** a common problem with DN76 is the thread slipping behind a plate near the lock, make sure it is threaded correctly as this can cause loops as described but normally cuts the thread as well. Link to comment Share on other sites More sharing options...
Hugh-Candoit (ENG) Posted September 3, 2007 Report Share Posted September 3, 2007 Should be part of tutorials that reply. Link to comment Share on other sites More sharing options...
petercoulson Posted September 3, 2007 Report Share Posted September 3, 2007 thats why i offered to do one for timing of a 76, if enough people have them i will do it Link to comment Share on other sites More sharing options...
x minit uk Posted September 3, 2007 Report Share Posted September 3, 2007 thats why i offered to do one for timing of a 76, if enough people have them i will do it As the Nike add use to say ' JUST DO IT' Link to comment Share on other sites More sharing options...
windycity Posted September 3, 2007 Report Share Posted September 3, 2007 well done, peter can do one for my blake as well...... cheers Link to comment Share on other sites More sharing options...
petercoulson Posted September 3, 2007 Report Share Posted September 3, 2007 your blake, ha ha the person that knew how to time that died 30 years ago. perhaps they mentioned it to hugh or you could try a museum Link to comment Share on other sites More sharing options...
windycity Posted September 4, 2007 Report Share Posted September 4, 2007 thats why it cost so much then, as it is a vintage peice of kit then, so it fits in well with the rest of my machinery..... nice Link to comment Share on other sites More sharing options...
Hugh-Candoit (ENG) Posted September 4, 2007 Report Share Posted September 4, 2007 your blake, ha hathe person that knew how to time that died 30 years ago. perhaps they mentioned it to hugh or you could try a museum Yer may not be so far off the mark there Peter Link to comment Share on other sites More sharing options...
ironplanet uk900 Posted September 5, 2007 Author Report Share Posted September 5, 2007 Thanks for the telephone call Peter, It was a great help to me, the lock timing was slightly out, turned into a 7 o clock job but it seems to be ok now. It can be a right B***ard that timing, I've done it before on my other DN76 when the gear came undone and fell off But I didn't have as much trouble working it out then, but then I was working with two staff and could concetrate on what I was doing. Trying to run a shop and do this was a pain, covered in grease and climbing over the machine every 2 minutes. Arr well sorted now thanks fellas. Link to comment Share on other sites More sharing options...
Lee Posted September 5, 2007 Report Share Posted September 5, 2007 Now thats service! Peter your a gent. Lee Link to comment Share on other sites More sharing options...
ironplanet uk900 Posted September 5, 2007 Author Report Share Posted September 5, 2007 I was dreading doing these blaking this morning in case I had the problems I had yesterday...........but wehey I am no longer crazy with rage ....the stress will kill me Link to comment Share on other sites More sharing options...
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