Kenmore 50 Gallon User manual

4300B
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iNSTRUCTIONS
Z1GoZAG SEWING MACHINE
# 4300B

TABLE OF
CONTENTS Adjusting for Good Stitches .................. 24
Adjusting Pressure of Presser Foot ......... 10
Adjusting Tensions .......................... 12- 13
Blind Stitching ....................................... 19
Buttonholes .......................................... 17
Buttons ................................................... 17
Changing the Presser Feet ..................... 15
Connecting Machine ............................. 4
Darning ................................................ 16
Fastening a Seam ................................. 11
Feed Dog Control ................................. 15
Identification- Head Parts .................. 2- 3
Inserting Bobbin into Bobbin Case ......... 8
Inserting & Removing Material ............... 14
Installing Machine Head ........................ 4
Locking Stitch Width .............................. 18
Needle & Thread Table .......................... 5
Needle Size ........................................ 5
Oiling Machine ..................................... 21
Overcasting ....................................... 19
Picking up Bobbin Thread ..................... 10
Placement of Needle ............................. 5
Removing Bobbin Case
from Shuttle ..................... 6
Removing Lint .................................... 20
Replscement of Belt ............................ 20
Reverse Stitching ............................. 11
Setting Stitch Length ............................ 11
Setting Stitch Width .............................. 18
Sewing Light ......................................... 4
Threading Upper Machine ..................... 9
Turning a Corner ................................. 15
What to Do ...................................... 22- 23
Winding the Bobbin .............................. 7

L
FRONT VIEW
1. Feed Dogs
2. Presser Foot
3. Presser Foot Thumb Screw
4. Thread Guides
5. Thread Tension Assembly
6. Face Cover Plate
2
7. Thread Take-up
8. Upper Thread Guide
9. Stitch Width Conrtol Dial
10. Bobbin Winder Assembly
11. Stitch Width Lock Lever
12. Stitch Length Control Lever
13. Light Switch
14. Bobbin Winder Tension Disc
15. Feed Dog Control Knob
16. Nomenclature Plate

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BACK VIEW
17. Motor Mounting Bracket
and Screw
18. Three Prong Connector
19. Clutch Knob
20. Hand Wheel
21. Thread Spool Pins
22. Arm Cover Plate
23. Presser Foot Knob
24. Presser Foot Lever
25. Thread Cutter
26. Needle Clamp Screw
27. Hand Hole Cover Plate
28, Needle Plate

@
@INSTALLING MACHINE HEAD IN PORTABLE
AND CABINET
Loosen the two hinge screws under holes in the rear
edge of the machine bed (1). Raise hinge pins in
the cutout (2). Slip machine head onto the pins and
tighten hinge screws securely (3).
Lower machine head to front flap.
Lay the plastic discs over the spool pin hole on the
arm cover plate. Screw pins in place. Discs and
pins are packed in accessory box.
When head is in place for sewing, there will be a
small open space between the edge of the sewing
head and the cabinet. This space is reserved for the
convenient plastic accessory tray which fits therein.
SEWING LIGHT
The sewing light is placed inside the face cover
plate as shown. It may be turned on or off by
pushing light switch. To change bulb, open the face
cover plate by swinging it open, twist old bulb away
from you and remove. Then insert new bulb.
CONNECTING MACHINE
Push the plug onto three prong connector over the
machine motor.
Plug machine cord into any 110-120V wall outlet.

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NEEDLE AND THREAD TABLE
NEEDLE
THREAD SIZE I SIZE / FABRIC
9
Cotton 80 - 100
Synthetic
Silk A
Cotton 80 - 100
Synthetic
Silk A 11
Chiffon, Fine Silks, Nylon Tricot,
Power net.
Batiste, Dimity, Organdy, Light weight
Velvet and Taffeta, Fine Lace, Light
weight Knits, Satin.
Cotton 60 - 80 P Cotton, Cotton Blends, Poplin, Percale,
Synthetic 14 Gingham, Shantung, Pique, Seersucker,
Velveteen, Double Knits, Light weight
Mercerized 50 - 60 / Wool, Linen, Leather, Fake Furs, Vinyls.
Mercerized 50 16 I Heavy Cotton such as Corduroy, Denim,
Decorator Fabrics, Wool, Coating and
Mercerized Heavy Duty Suiting.
Cot on30- 0----- 18 '
Mercerized Heavy Duty Heavy Twills, Denims, Coatings.
I
NEEDLE SIZE
Use KENMQRE needles. The size of the needle should conform to
the size of the thread and both should be suitable to the material.
The same size thread should be used in the bobbin as on the
upper part of the machine for ordinary sewing. Never use a bent
needle nor one with a blunt point.
I II I
This is the exact length of the needle to
be used in your machine. Comparison
with this illustration will determine
whether the needle you have is the cor-
rect one for your machine.
PLACEMENT OF NEEDLE
Raise needle .bar to its highest
position by turning hand wheel
toward you. Loosen needle clamp
screw. Hold the needle so that
the flat side is to your right. Slip
blunt end of needle as far as it
will go into needle clamp. Tighten
needle into place with needle
clamp screw.
Flat
side
faces
to
right.
:; ::.::
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°
Needle at
its highest
position.
Pull
bobbin
case
straight
out,
td
_ )i.... "
Pull
out
latch.
............ :....... .............. ; _..........
¢
REMOVING BOBBIN CASE FROM SHUTTLE

1
WINDING THE BOBBIN
0
Place thread on spool
post. Draw thread as
shown.
Wind thread around
bobbin a few times.
Place bobbin onto
bobbin winder shaft•
0
Press bobbin winder
lever down.
i_ _iiI 0
Release clutch by
turning clutch knob
toward you.
@
Bobbin winder thread
guide is adjustable• If
bobbin winds as illus-
trated, slightly move
thread guide to an arrow
direction to correct this
situation.
' 1:::, ,_%,,:,i_i_
Tighten clutch knob
and remove bobbin.
m

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INSERTING BOBBIN INTO BOBBIN CASE .........CASE INTO SHUTTLE
0
0
0
Guide bobbin onto center pin of bobbin case.
Pull thread through slot.
Pull thread under tension spring.
Holdihg latch, 3osition case into shuttle, release latch.
0_) 0

THREADING UPPER MACHINE

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PICKING UP BOBBIN THREAD
Raise presser foot lever.
Hold needle thread loosely in left hand and rotate
hand wheel toward you one complete turn.
Bring bobbin thread up by pulling upper thread.
(See illustration).
Place threads back under presser foot.
ADJUSTING THE PRESSURE OF THE
PRESSER FOOT
Push down latch of presser foot knob (See illustra-
tion). This will release pressure of presser foot.
To increase pressure, push down round top of
presser foot knob until suitable pressure is obtained.
When sewing multiple thickness or heavy material,
you may prefer less pressure on the presser foot.
When sewing on sheer fabrics, more pressure may
be desired.
10

SETTING STITCH LENGTH
The stitch regulator controls the stitch length. Set lever to any
desired stitch length position between 0 and 4, and set by turn-
ing knob clockwise until it stops. At No. 4 the longest stitch is
obtained. The size of stitch selected will depend on fabric you
are sewing. To lengthen stitch, turn the knob counter clockwise
until the lever can be lowered to the position desired.
REVERSE STITCHING
Raise lever for reverse stitching. Lower lever for forward
stitching.
It is best to begin and end most seams with reverse stitching
often called back tacking.
FASTENING A SEAM
Lower needle into fabric. Lower presser foot and move lever
up for reverse stitching. Turn hand wheel toward you and
stitch until needle reaches beginning of seam. Push lever
down and complete seam. Fasten end of same. Cut thread
with cutter.
11

, , , , •
OADJUSTING TENSIONS
A perfect stitch will have threads locked between the
two layers of fabric with no loops on top or bottom.
(Refer to page 24)
Fig. 1
PROBLEM REMEDY
Fig. 2
Upper thread too tight
:.[: :-
Upper thread too loose o......
Fig. 3
12
Decrease Tension
Increase Tension

• =
When stitching Is unsatisfactory as in
figures 2 and 3, adjust the upper thread
tension. Lower thread tension requires
adjustment less frequently than the
upper thread tension.
When stitch is satisfactory, as in figure
1 and seam is badly puckered, the
cause may be tight tensions and both
upper and lower may be adjusted. (See
page 24)
When adjusting the tension on the
bobbin case, make slight adjustments
with a screwdriver. (See page 24)
INCREASE TENSION
Turn Clockwise.
DECREASE TENSION
Clockwise.
13

INSERTING AND REMOVING THE MATERIAL
For all kinds of sewing, consult chart on
page 5.
Before placing the material on the machine,
see that:
• The presser foot and needle clamp
screws are both tight.
• The sizes of needle and thread suit the
kind of work to be done.
• The needle and take-up lever are at
their highest position.
The ends of the threads have been drawn
about 4 inches to the rear of the machine.
• The feed dogs are up.
• Stitch length and width controls are set
at desired settings.
Experiment by sewing on the fabric to be
used to determine tension adjustment and
correct stitch settings.
Place material under the presser foot, nsert
the needle into the material by turning the
hand wheel toward you, lower presser foot
and start sewing.
To remove the work, first turn hand wheel
toward you until needle is at its highest
position, then raise the presser foot, draw
material to the rear and cut off excess
thread with the thread cutter located on the
presser bar.
IMPORTANT: Always turn the hand wheel
toward you! When machine is not being
used, place a piece of material over the feed
dog and lower the presser foot. Always have
fabric under the presser foot when operat-
ing the machine. Operating threaded ma-
chine without fabric will cause it to jam by
forcing thread into the shuttle." See page 20.
14

CHANGING THE PRESSER FEET
The various attachment feet available for certain
kinds of work are to be fastened to the presser bar.
To attach the foot, raise the presser bar to its highest
position by raising the presser foot lever. Loosen
the presser foot thumb screw, choose the proper
foot, insert from the front. Tighten the screw using
the large screw driver and make sure that the foot
is secure.
TURNING A CORNER
Stop sewing machine with needle in fabric. Raise
preseer foot. Turn fabric. Lower presser foot and
continue stitching.
FEED DOG CONTROL
The drop feed control knob is situated on the right
front of machine bedplate. When knob is turned to
the left, feed dog drops and does not pull material.
This allows the operator freedom of movement of
material, as for darning. For regular sewing, turn
knob to the right.
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15
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16
DARNING
WITH
1.
2.
PRESSER FOOT :
Turn feed dog control to left.
Press down outer ring of presser foot knob, see page 10. With presser foot knob in this
position, mending, darning, monogram work, etc. may be done.
3. Stretch fabric tightly between two spring embroidery hoops and place under needle.
4. Lower presser bar so thread will have some tension. When you start to darn, move
fabric back and forth to cover darning area. Then turn fabric and continue sewing at
right angles to the previous stitching. Use medium machine speed. You can make any
length stitches desired. Slow movement of fabric will make short darning stitches. Fast
movement will make long stitches.
5. When you finish darning, raise presser foot and remove fabric. Increase pressure for
general sewing by pressing down inner pin of the presser foot knob. Turn feed dog
control to right.
WITHOUT PRESSER FOOT:
1. Turn feed dog control to left.
2. Remove presser foot.
Proceed as directed under steps 3 and 4 above.
3. When you finish darning, raise the presser foot lever and remove fabric. Replace presser
foot, and increase pressure for general sewing. Turn feed dog control to right.

BUTTONS AND BUTTONHOLES
BUTTONHOLES
1. Set stitch width lock lever and stitch length control lever just on each
dot as illustrated.
2. Stitch forward until desired length for buttonhole is obtained. Stop with
needle on the right side of stitching. Raise presser foot and turn material.
Lower presser foot and take one stitch to the left.
3. Turn stitch width control dial to 4, drop feed dogs and bartack. Bartack-
ing should be completed with needle on the left side. Raise feed dogs,
return stitch width control dial to the set position and sew back to other
end of buttonhole.
4. Stop, with needle on the left side. Turn stitch width control dail to 4.
Drop feed dogs and bartack.
It is recommended that tailor's chalk be used to determine length of button-
hole before sewing. For a firm buttonhole the stitching can be repeated
over the same area-then cut buttonhole opening.
BUTTONS Feed dog Left
1. Place needle into left hole of button, and lower presser foot.
2. Set stitch width control lever at width between holes of button. Test
width by turning handwheelslowly. Take several zigzag stitches to sew
on button, ending with needle on left side.
3. Set stitch width control lever at 0. Take a few stitches in left hole of
button to lock threads. Pull threads to wrong side.
NOTE: To make a small thread shank when sewing on a flat button, place
a straight pin or needle between the holes of the button. 17

ZIGZAG CONTROL SETTING STITCH WIDTH
1. Push in lock lever. Change stitch setting and
release lever.
2. Move stitch width dial to desired position between
0 and 4 on the stitch width indicator dial.
Zigzag stitch width increases from 0 to 4.
Straight stitching is possible only with control on O.
LOCKING STITCH WIDTH
Push in lock lever. Change stitch setting and release
lever.
18

BLIND STITCHING
Fold and baste hem. Turn back so that edges of
hem project beyond fold. Set sewing machine for
straight stitching and stitch along fold of hem for
approximately _inch. Then zigzag one stitch using
stitch width set on 2, catching the right side of the
material. Continue straight for _ inch and repeat
process until hem is completed.
......._!iiiiiiiiiiiii!iiii
OVERCASTING
Set stitch width to 4. Set stitch length at 4. Zigzag
stitch around raw edge of fabric to completely cover
the edge.
19