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IF IT BREAKS NEEDLES:
The trouble may be caused by-
1.
Pulling of the material when sewing
will
break
needles. Guide the material only-do not pull.
2.
Wrong Needle being
used:
Be
sure you
are using correct needle
for
a
Kenmore
Rotary.
3.
Needle incorrectly
set-too
low:
See
instructions
elsewhere in this book
on
how to
properly set needle and follow instructions carefully.
4.
Needle not firmly set:
After being
certain
needle
is
properly
set
be
sure it
is
held tight by needle clamp screw-use a screw driver.
IF PUCKERS ON ORDINARY MATERIAL
The trouble may
be
caused by-
1.
Tensions must be in balance. See instructions elsewhere
in this book on tension adjustment.
2.
Reduce the tension on upper thread by moving
in-
dicator
towards
No.1. Do some
testing.lf
this
fails,
ex-
amine lower tension on bobbin case
for
proper ad-
justment and proceed to balance the
tensions.
3.
Blunt Needle-Replace with a new straight needle-
examine
needle
point.
IF PUCKERS ON FINE MATERIAL
The trouble may be caused by-
1.
Both tensions may be too tight:
Adjust upper and lower tensions-must be
in
balance
for chiffon and other very light materials, best
results
are obtained with upper tension set at
Y2
and the
lower tension in balance with
that. However,
suf-
ficient tension must be maintained to
raise
the
small
auxiliary spring (No.
5
shown
in figure
3
this book)
when machine
is
in
operation.
Thirty-four
2.
Presser foot loose on Presser
bar:
Tighten
thumb
screw.
3.
Blunt Needle:
Replace
with new straight
need
le-exa
mine
needle
point.
4.
Needle
Plate:
Bars
in
this plate might be
slightly
bent down.
Needle
plate hole
might
be
rough
from needle striking it. In
either
case
a
new need
le
plate is
required.
LOOSE
STITCHING
The trouble
may
be caused
by-
1.
Tension too
loose-either top,
bottom
or
both:
See instructions elsewhere on tension
adjustment and
balance.
2.
Upper Tension fails
to
Operate
Satisfactorily:
lint
or stray
threads lodged
between tension
plate No.
1.
Raise the presser
foot lifter
(see
illustration).
Push
the
tension
regulator
to
figure
No.
1,
next cut
a piece of
BIAS CLOTH
to
a
point
and draw this
strip of
cloth
through and under tension
plate
No.
1 and close to
screw
No.
3
on the
side
from
you
as shown in
illustration. This cloth
should
be drawn
down through tension plate
No.
1 and washer
No. 2
(as shown
in
illustration),
this
can be accomplished by
holding
tension plate
(No.
1)
and washer (No.2) apart
with
a
small
screw
driver.
Be careful to draw the
cloth between
plate No. 1 and washer No. 2. When
you
have
this
cloth
in
place, drop the presser bar
Thirty-five
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