Kerosene again?
According to some very old manufacturer's documentation . . .
For a machine you ARE supposed to oil . . .
If it is sluggish and gummy or just plain stuck . . . a few drops of kerosene or gasoline . . . go figure.
If you need to clean the old oil out and just spruce up the joints, an old Singer manual mentioned a few drops of kerosene at all the oiling points, being careful not to spill of course.
After letting the few drops of kerosene soak in a few minutes, manually turn the machine over and then go ahead and run it a little bit at low speed. Only a little!!
Immediately after running in the kerosene for a few moments OIL, OIL, OIL with fresh oil before actually trying to sew on it again.
You don't want to run it with dry joints!
Oil, oil, oil with fresh oil.
This seems to go along well with Billy's cleaning tutorials, just a gentler tidying of joints rather than full-out cleaning.
Well, . . . according to Singer ;-)
Aardie