SINGER 29K73 - Manual (Page 16)

14
HINTS FOR PERFECT OPERATION
Oil the machine regularly.
The top of hand wheel must always turn over toward the operator (counterclockwise).
If located at side of machine, the hand wheel must turn over from left toward right (clockwise).
Never run the machine without material between the feeding foot and needle plate.
Do not run the machine when both shuttle and needle are threaded unless there is material under the feeding
foot.
The Belt
See that the belt is not too tight; it should be just tight enough not to slip. If too loose, remove the hook at one
end, shorten the belt and rejoin.
Machine Working Heavily
If the machine runs hard after standing idle for some time, use a little kerosene or benzine in the oiling places, run
the machine rapidly, then wipe clean and oil.
To Avoid Breaking Needles
The feeding foot should be securely fastened by the thumb screw. Do not sew heavy seams or very thick
material with too fine a needle. A large needle and thread to correspond should be used on heavy work.
See page 5.
Avoid pulling the material when stitching. This may cause the needle to strike on the needle plate and break.
Breaking of Upper Thread
Improper threading of machine.
Tension being too tight.
The thread being too coarse for the size of the needle.
The needle being bent, having a blunt point, or being set incorrectly.
Breaking of Under Thread
Improper threading of shuttle.
Bobbin Thread tension being too tight.
Skipping of Stitches
The needle may not be accurately set into the needle bar or the needle may be blunt or bent.
Remove the accumulation of dirt or lint which might gather behind thread retaining spring near bottom of needle
bar by working a piece of tape or thread back and forth between spring and needle bar.
CAUTION: Do not bend spring away from needle bar or spring may become permanently damaged.
Examine feeding foot and remove any dirt or lint from the teeth to insure regular feeding of material.
Working on old, hard leather
When working on old, hard leather, it is advisable to soften the leather with oil, use a coarse needle and make
a long stitch to prevent needle from splitting the leather.