1985

Thank you,Cowboy Bob Yes !! all makes sense,cant find pics of the 7-38 I was starting to think it might of been a ADLER because I have not seen a 7 class with that plate at front of it like mine yet ,the serial number is AD 046017 So after you pointed stuff out to my questions , logically and mechanically thinking now after reading your reply` the bolt was applying more pressure to the pressure foot spring, So I had to release the down wards pressure on the pressure foot spring, by going anticlockwise on the bolt , Which would at that point place less pressure to the pressure foot ,that eases pressure on the material ( between )the pressure foot, and feed dog. I also realize now when adjusting the pressure bar spring to have (more) pressure to the pressure foot. the hand wheel is stiffer when rotating , even before the pressure foot makes contact with material, So this is why force and friction on all parts play a big part to the stiffness as well, so very important that I oil the moving parts frequently,as you state. So over a period of time the friction made between two services if left dry , will wear causing parts to become looser, the tolerance level is acceptable within certain parts to the sewing machine, but in others sections of the sewing machine it would be unacceptable I guess. Why don`t sewing machines not have high speed sealed high temp greased bearings in certain places to ease friction? So I also noticed that both shuttle horns that showing in the pics where gaps closing up at a certain point on its oscillation rotation at there certain point they both look as if they ( jilt / move ) slightly up or down in the timing basket, when they move towards me.entering under the cast of the machine base ,is that normal ? I also noticed if I grab hold of the basket and push inwards towards the back of machine and then forwards there`s about 0.5 mm movement and it is not where the basket joins to the bar as that is pinned tight, should I adjust to make sure there`s no back and forth movement, or should it be left with some,?

Just come across this post, I own SINGER 307G2 never occurred to me that these belts may be obsolete, I was wondering the belt is just cloth webbing which is easy size to find, whether the metal rectangular rings could be removed and placed on new material, I have repaired a belt be for by cutting slanted , less stress placed across a distance rather than a straight cut and gluing together just to hold in place while micro drilled the holes vertically across, using brass rod as pins, then gently ping the ends to stop any moving out,just use a very small pin hammer with round ball o the end,

Thought I may just get a old cast pulley wheel and find a spindle from some of my old metal bar from vintage machines I had, and either rubber or leather in the gap of the pulley, I have do have some old cast table bobbin winder, I never was lucky enough to have a metal lathe , It would of been useful ,in my tinkering with machines

I just noticed photos when entered topic never went in order sorry.

Hi to all, I am quite new to forums, so hope this will reach any one who may help please, A few years ago I got hold of a couple Singer class 7 one was a 7-33 and the other a double needle Singer class 7, I think , I now decided to take a good look at the Double needle one, and check its functions, as its been under cover in my garage waiting to be worked on, but I only have limited knowledge with sewing machines, I need to call upon people with a lot more experience in this field than I. After placing oil on all moving parts again as I have done through the year` there seams to be an issue, or a few I think" When turning the hand wheel, there`s a point where its stiff then loosens up, then I noticed a few things under close inspection, There is a scraping shiny mark on the Cam thread take up in the grooved area about a inch long , And at the back of the machine is the another shiny scrape mark on the Connection feed forked . But it was about 7 mm in length and 2 mm in width but seems to of nearly gone now after me rotating the wheel, trying to find out the issue`s, but I will still show as it may be significant to some one. These two issues obviously must be rubbing at them points,and I don`t know why, The other issues is on the needle assembly thread take up leaver , I notice when slowly turning the hand wheel round there`s a certain point the thread take up leaver stays stationary even though every thing else is rotating, The Cam thread take up will rotate about a inch before the needle assembly take up leaver moves again, this will happen at the point where the shuttle hooks would be passing the scarf of the needles, just as the shuttle hooks grab the loops from the needles, So I don`t know whether that is normal, for non movement at that point of the needle take up leaver, Also I had just noticed that both sides of the Driver shuttles start to rub up close to the plate above as they move to a certain point ,I will show in the photos pointing with screw driver showing a gap then showing there`s no gap at a certain point,where I feel it slightly may rub, So first two photos are showing the long mark in the cam thread take up, third photo shows shiny part of metal where on the connection feed forked Next two photos show the gap then no gap on the shuttle drivers, And the last two photos show the double needle Singer class 7 I think, if any one knows what class it may be it would be nice to know

I do have the similar types on my my class 7-33 but its missing its wheel and on my 132 k6 they look very similar to each other here is a pic but missing wheel class 7

Hmm I am all for restoring great quality machines, that need the skill and passion from some one with magic hands, its what keeps history of the passed alive, I have two class 7 , one is a twin needle don`t know what class as there is no badge , just a model number and other a single needle 7-33 , I am new to industrial ,machines sewing machines in general, The cam on the upper thread take up is getting scared into, as my hand wheel is tight as the needle bar goes up then loose as it comes down, some thing is not right but I do not know what it may be, ?