SINGER 29K73 - Manual (Page 7)

TO OPERATE THE MACHINE NEEDLES
1. Raise feeding foot A, Fig. 5 by moving lifter B
upward.
2. Place both feet upon the treadle.
3. Turn top of hand wheel over toward you to
start machine. (If hand wheel is fitted on front of
machine, turn top of hand wheel from left to
right to start machine.)
4. Allow the feet to move freely with the motion
of the treadle. Continue this motion with an
alternating pressure of heel and toe until a
regular easy movement is acquired and the
hand wheel is kept in continuous rotation by use
of the feet alone.
5. When familiar with the treadle movement, and
you are able to re-start the machine without
turning the hand wheel in the wrong direction,
place a piece of material under the feeding foot.
6. Lower feeding foot by lowering lifter and oper­
ate machine until you have become accustomed
to guiding the material.
Material is moved along by the feeding foot only,
and, the direction of stitching can be changed as de­
sired, by turning wings. Fig.32. To make a curved line
of
stitching, operate machine slowly and, without
turning work, turn the revolving wings enough to pro­
duce the desired curve.
Feeding foot rises between each stitch while needle
is in the material. With needle serving as pivot, ma­
terial can be turned in any direction. When desired,
the feeding foot may be fixed to work in a straight
line, in any direction, by tightening the knurled screw
A, Fig. 22.
Never turn the work or alter the direction of the
feed while the foot is pressing on the material, as this
may cause missed stitches and damage the surface
of the work.
Needles for MACHINES 29K71, 29K72 and 29K73
are of Class and Variety 29 x 3 for cloth and 29 x 4
for leather. Needles 29 x 3 are made in sizes 11, 14,
16, 17, 18, 19, 21, 22, 23, 24 and 25, Needles 29 x 4
are made in sizes 9, 11, 14, 16, 18, 19, 21, 22, 23,
24 and 25.
The above needles regularly have nickel finish but
can be supplied with chromium finish if ordered.
The size of the needle to be used should be deter­
mined by the size of the thread which must pass freely
through the eye of the needle. Rough or uneven thread,
or thread which passes with difficulty through the eye
of the needle will interfere with the successful use
of the machine.
Orders for needles must specify the Quantity re­
quired, the Size number, also the Class and Variety
numbers separated by an x.
The following is an example of an intelligible order:
"100 No. 16, 29 X 3 Needles", for cloth.
"100 No. 16, 29 X 4 Needles", for leather.
The best stitching results will be obtained by using
the needles sold by Singer Sewing Machine Company.
THREAD
Left twist thread should be used in the needle.
Either right or left twist thread can be used for the
bobbin.
1
To determine the twist, hold the thread as shown.
Turn the thread over toward you between the thumb
and forefinger of the right hand; if left twist, the
strands will wind tighter. If right twist, the strands
will unwind.
A^
C
Í
Fig. 5. Operating Machine Fig. 6. Determining Twist of Thread