Pfaff 140S User manual

Owner's
Manual
SMARTER BY PFAFF™– inspired and developed by the premier PFAFF® sewing machine brand
160s
140s

2
This household sewing machine is designed to comply with IEC/
EN 60335-2-28 and UL1594.
IMPORTANT SAFETY INSTRUCTIONS
When using an electrical appliance, basic safety precautions should
always be followed, including the following:
Read all instructions before using this household sewing machine.
Keep the instructions at a suitable place close to the machine. Make
sure to hand them over if the machine is given to a third party.
DANGER – TO REDUCE THE RISK OF ELECTRIC
SHOCK:
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immediately after using and before cleaning, removing covers,
relamping, lubricating or when making any other user servicing
adjustments mentioned in the instruction manual.
WARNING – TO REDUCE THE RISK OF BURNS,
FIRE, ELECTRIC SHOCK, OR INJURY TO PERSON:
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children) with reduced physical, sensory or mental capabilities,
or lack of experience and knowledge, unless they have been given
supervision or instruction concerning use of the sewing machine
by a person responsible for their safety.
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with the sewing machine.
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in this manual. Use only attachments recommended by the
manufacturer as contained in this manual.
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or plug, if it is not working properly, if it has been dropped or
damaged, or dropped into water. Return the sewing machine to
the nearest authorized dealer or service center for examination,
repair, electrical or mechanical adjustment.

3
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Keep ventilation openings of the sewing machine and foot control
free from the accumulation of lint, dust, and loose cloth.
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around the sewing machine needle.
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needle to break.
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causing it to break.
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in the needle area, such as threading needle, changing needle,
threading bobbin, or changing presser foot, etc.
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where oxygen is being administrated.
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remove plug from outlet.
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the cord.
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objects on the foot control.
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SAVE THESE INSTRUCTIONS

4
SERVICING OF DOUBLE
INSULATED PRODUCTS
In a double-insulated product, two systems of insulation are
provided instead of grounding. No ground means is provided on
a double-insulated product, nor should a means for grounding
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a double-insulated product must be identical to those parts in the
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5
INTRODUCTION.................................6
Machine Overview............................................6
)URQW6LGH......................................................6
Top Parts.......................................................7
5HDU6LGH .......................................................7
Accessories.......................................................... 7
,QFOXGHG$FFHVVRULHVQRWLQ3LFWXUH..........7
Presser Feet...................................................8
6WLWFK2YHUYLHZ²V................................9
6WLWFK2YHUYLHZ²V..............................10
PREPARATIONS...............................11
Unpacking ..................................................11
&RQQHFWWRWKH3RZHU6XSSO\ ..................11
3DFNDZD\DIWHU6HZLQJ............................11
)UHH$UP .....................................................12
Leveling the Machine Base Plate.............12
Thread Cutter.............................................12
6SRRO3LQV ...................................................13
Threading the Machine.............................14
Needle Threader........................................15
Threading for Twin Needle......................16
Bobbin Winding.........................................17
Inserting the Bobbin..................................17
Presser Foot Pressure................................18
Thread Tension..........................................18
Needles........................................................19
Changing the Needle................................19
/RZHULQJ)HHG'RJV .................................20
Presser Foot Lift.........................................20
Changing the Presser Foot.......................20
6WLWFK6HOHFWLRQ ...........................................21
6WLWFK/HQJWK...............................................21
6WLWFK:LGWK................................................22
$GMXVWDEOH1HHGOH3RVLWLRQ......................22
5HYHUVH6HZLQJ..........................................22
SEWING..............................................23
6WDUWWR6HZ²6WUDLJKW6WLWFK....................23
&KDQJH6HZLQJ'LUHFWLRQ.........................23
)LQLVK6HZLQJ .............................................23
5HLQIRUFHG6WUDLJKW6WLWFK.........................24
7KUHH6WHS=LJ]DJ6WLWFK...........................24
2YHUORFN6WLWFK...........................................25
&ORVHG2YHUORFN6WLWFK..............................25
Blindhem.....................................................26
6HZLQJRQ3DWFKHVRU$SSOLTXpV.............27
'DUQLQJZLWKWKH
7KUHH6WHS=LJ]DJ6WLWFK..........................27
Repairing Tears..........................................27
6HZLQJRQ%XWWRQV.....................................28
6WDQGDUG%XWWRQKROHPRGHOV..........29
6WDQGDUG%XWWRQKROHPRGHOV..........30
&RUGHG%XWWRQKROH6WUHWFK)DEULFV ......31
6HZLQJ=LSSHUV ..........................................32
MAINTENANCE................................33
Cleaning the Machine...............................33
&OHDQLQJWKH%REELQ$UHD ........................33
&OHDQLQJ8QGHUWKH%REELQ$UHD............33
5HSODFLQJWKH6WLWFK3ODWH .........................33
TROUBLESHOOTING.....................34
TABLE OF CONTENTS

6
INTRODUCTION
Front Side
1. Threading slots
2. Thread cutter
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4. Reverse lever
5. Free arm
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8. Handwheel
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10. Built-in needle threader
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12. Needle bar
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14. Bobbin cover
15. Lower thread guide
16. Needle screw
17. Presser foot lift
18. Needle thread guide
19. Presser foot bar and presser foot holder
20. Presser foot
Machine Overview
15
16
17
18
19
20
56
4
7
8
9
10
11
12
13
14
1
2
3

7
Top Parts
21. Presser foot pressure dial
22. Thread guides
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24. Hole for auxiliary
spool pin
25. Bobbin winder spindle
26. Take-up lever
27. Thread tension discs
28. Bobbin winder
tension disc
29. Thread tension dial
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Rear Side
31. Main switch, connectors for power
cord and foot control
32. Handle
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Accessories
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35. Felt pad
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40. Edge guide
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Included Accessories
not in Picture
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27 28 2926 30
32
31
35
37
34
40
41
38
21 22
33
36
39
23 24 25

8
Standard Presser Foot 0
This foot is used mainly for straight stitching and zigzag stitching
with a stitch length longer than 1.0 mm.
Clearview Foot 1
When sewing decorative stitches or short zigzag stitches and
other utility stitches with less than 1.0mm stitch length, use this
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smoothly over the stitches.
Four-Step Buttonhole Foot 5A (for 140s)
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and stop your buttonhole at precisely the correct point.
Blindhem Foot 3
This foot is used for blindhem stitches. The toe on the foot guides
the fabric. The red guide on the foot is designed to ride along the
fold of the hem edge.
Note: Always use at least 5mm stitch width when using Blind Hem Foot
3. If using a stitch width other than the recommended, swing the needle
by turning the hand wheel to make sure the needle doesn’t hit the metal
pin in the foot.
One-Step Buttonhole Foot 5B (for 160s)
This foot has a space in the back for a button used to set the size of
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ton size.
Zipper Foot 4
This foot can be snapped on either the right or the left of the nee-
dle, making it easy to sew close to both sides of the zipper teeth.
Move the needle position to the right or left to sew closer to zipper
teeth.
Presser Feet

9
Stitch Name Description
5B 1-step Buttonhole 6WDQGDUGEXWWRQKROH
06WUDLJKWVWLWFK For all straight stitching and topstitching
0=LJ]DJVWLWFK )RUVHUJLQJDQGDSSOLTXp
0 Triple zigzag stitch For stitching on elastic band, darning tears and
patches
3 Blindhem stitch For invisible hem attachment
3 Elastic blindhem
stitch * For invisible hem attachment and simultaneous serging, also for stretch fabrics
1'HFRUVWLWFK For all fabrics and types of work
1 Checker satin stitch 6DWLQGHFRUDWLYHVWLWFK
12SHQVFDOORS 6DWLQGHFRUDWLYHVWLWFK
1%ULGJLQJ6WLWFK For overcasting, sewing on elastic, darning tears
and inserting patches
0/1 Greek stitch $WUDGLWLRQDOGHFRUDWLYHVWLWFKHJIRUERUGHUV
and towels
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0 Reinforced straight
stitch * For stretch seams, e.g. crotch seams on sports- and workwear
1 Reinforced zigzag
stitch * For attaching elastic tape on elastic materials
1 Honeycomb stitch * For sewing on elastic threads, overlocking towel-
ling and for decorative hem seams
1 Edge stitch narrow * $GHFRUDWLYHVWLWFK
36XSHUVWUHWFK $GHFRUDWLYHVWUHWFKVWLWFK
1'HFRUDWLYHVWLWFK $GHFRUDWLYHVWLWFK
1&URVV6WLWFKHV $GHFRUDWLYHVWLWFK
1'HFRUDWLYHVWLWFK $GHFRUDWLYHVWLWFK
0 Federstich $GHFRUDWLYHVWLWFK
3 Closed overlock
stitch * $FORVLQJDQGVHUJLQJVHDPIRUIUD\LQJPDWHULDOV
32YHUORFNVWLWFK $FORVLQJDQGVHUJLQJVHDPIRUVWURQJHURUQRQ
fraying materials
* These stitches are stretch stitches
Stitch Overview – 160s

10
Stitch Name Description
4
1
23$ 4-step Buttonhole 6WDQGDUGEXWWRQKROH
06WUDLJKWVWLWFK For all straight stitching and topstitching
0=LJ]DJVWLWFK )RUVHUJLQJDQGDSSOLTXp
0 Triple zigzag stitch* For stitching on elastic band, darning tears and
patches
3 Elastic blindhem
stitch * For invisible hem attachment and simultaneous serging, also for stretch fabrics
3 Blindhem stitch For invisible hem attachment
0/1 6KHOOHGJLQJVWLWFK )RUGHFRUDWLYHKHPVRQÀQHPDWHULDOVHJOLQHQ
0/1 Greek stitch $WUDGLWLRQDOGHFRUDWLYHVWLWFKHJIRUERUGHUV
and towels
1%ULGJLQJ6WLWFK For overcasting, sewing on elastic, darning tears
and inserting patches
1 Checker satin stitch 6DWLQGHFRUDWLYHVWLWFK
12SHQVFDOORS 6DWLQGHFRUDWLYHVWLWFK
0 Reinforced straight
stitch * For stretch seams, e.g. crotch seams on sports- and workwear
1 Reinforced zigzag
stitch * For attaching elastic tape on elastic materials
1 Honeycomb stitch * For sewing on elastic threads, overlocking towel-
ling and for decorative hem seams
36XSHUVWUHWFK $GHFRUDWLYHVWUHWFKVWLWFK
1 Edge stitch narrow $GHFRUDWLYHVWLWFK
32YHUORFNVWLWFK $FORVLQJDQGVHUJLQJVHDPIRUVWURQJHURUQRQ
fraying materials
3 Closed overlock
stitch * $FORVLQJDQGVHUJLQJVHDPIRUIUD\LQJPDWHULDOV
0 Federstich $GHFRUDWLYHVWLWFK
1&URVV6WLWFKHV $GHFRUDWLYHVWLWFK
1'HFRUDWLYHVWLWFK $GHFRUDWLYHVWLWFK
* These stitches are stretch stitches
Stitch Overview – 140s

11
PREPARATIONS
Unpacking
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the machine out of the box, remove the
outer packaging and lift off the machine
carrying case.
2. Remove all outer packing material and the
plastic bag.
Note: Your SMARTER BY PFAFF™ 140s/160s
sewing machine is adjusted to provide the best stitch
result at normal room temperature. Extreme hot and
cold temperatures can affect the sewn result.
Connect to the Power Supply
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plug and the foot control.
Note: Consult a qualified electrician if in doubt as
how to connect the machine to the power source. Un-
plug the power cord when the machine is not in use.
For this sewing machine, foot control model
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9PXVWEHXVHG
1. Connect the plug of the foot control to
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machine and to the wall socket. The sewing
speed is regulated by pressing the foot
control.
2. Press the 2,VZLWFK%WR´,µWRWXUQRQ
power and light.
Pack away after Sewing
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2. Unplug the cord from the wall socket and
then from the machine.
3. Unplug the foot control cord from the
machine. Wind the cord around the foot
control for easy storage.
4. Place all accessories in the accessory tray.
6OLGHWKHWUD\RQWRWKHPDFKLQHDURXQGWKH
free arm.
5. Place the foot control in the space above
the free arm.
6. Put on the hard cover.
For the USA and Canada
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blade wider than the other). To reduce therisk
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polarized outlet only one way. If the plug does
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VWLOOGRHVQRWÀWFRQWDFWDTXDOLÀHGHOHFWULFLDQ
WRLQVWDOOWKHSURSHURXWOHW'RQRWPRGLI\WKH
plug in any way.
B
A

12
B
A
Free Arm
To use the free arm, slide off the accessory
tray. When attached, a hook keeps the acces-
sory tray securely attached to the machine.
Remove the tray by sliding it to the left.
Leveling the Machine Base Plate
To make sure your machine stands steadily on
your sewing surface you can adjust the base
plate height.
7XUQWKHEDVHSODWHDGMXVWLQJVFUHZ$E\
hand. Turn clockwise to lower and counter-
clockwise to raise the base plate.
Thread Cutter
To use the thread cutter, pull the thread from
EDFNWRIURQWDVVKRZQ%

13
Narrow thread spool
Large thread spool
Spool Pins
Your machine has two spool pins, a main
spool pin and an auxiliary spool pin. The
spool pins are designed for all types of
thread. The main spool pin is used in a
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spool) and the auxiliary spool pin in a verti-
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the horizontal position for normal threads
and the vertical position for large spools or
specialty threads.
Main Spool Pin
Place a spool cap and the thread spool on
the spool pin. Make sure that the thread
reels off the spool counter clock-wise and
slide on a second spool cap.
Note: Not all thread spools are manufactured in
the same way. If you experience problems with
the thread, turn it in the opposite way or use the
vertical position.
Use a spool cap slightly larger than the
thread spool. For narrow thread spools, use
a smaller spool cap in front of the spool. For
large thread spools, use a larger spool cap
in front of the spool.
The flat side of the spool cap should be
pressed firmly against the spool. There
should be no space between the spool cap
and the thread spool.
Auxiliary Spool Pin
The auxiliary spool pin is used when wind-
ing a bobbin thread from a second spool of
thread or for a second spool when sewing
with a twin needle.
Insert the auxiliary spool pin into the hole at
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spool cap and place a felt pad under the
thread spool. This is to prevent the thread
from reeling off too fast.
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pin as that would prevent the spool from
rotating.
Auxiliary spool pin
A

14
D
Threading the Machine
Make sure that the presser foot is raised and the needle is in its highest position.
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5. Thread the needle.
A
B
E
F
G
C

15
CD
B
Needle Threader
The integrated needle threader allows you
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The needle must be in its highest position
to use the built-in needle threader. Turn the
handwheel until the notch on the wheel is
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lowering the presser foot.
1. Use the handle (B) to pull the needle
threader all the way down. The metal
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2. Place the thread from the back over the
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KRRN'
3. Let the needle threader gently swing
back. The hook pulls the thread through
the needle eye and forms a loop behind
the needle. Pull the thread loop out
behind the needle.
4. Raise the presser foot and place the
thread under it.
Note: The needle threader is designed to be used
for size 70-120 needles. You cannot use the
needle threader for size 60 needles or smaller,
wing needles or twin needles.
There are also some optional accessories that
require manual threading of the needle.
When threading the needle manually, make sure
that the needle is threaded from front to back.
A

16
A
B
C
E
F
GH
D
Threading for Twin Needle
Replace the sewing needle with a twin needle. Make sure that the presser foot is raised and
the needle is in its highest position.
1. Place the thread spool on the spool pin
and fit the appropriately sized spool
cap. Insert the auxiliary spool pin.
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pad. Place the second thread spool on
the spool pin.
2. Pull the threads into the thread guide
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3. Thread down through the right
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4. Bring the threads from the right into
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left threading slot. Place the threads
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one thread into the slot on the left side
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the other thread into the slot on the
right side of the needle thread guide
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become twisted.
5. Thread the needles manually from
front to back.
Note: When you are using a twin needle, you
might need to reduce the stitch width to pre-
vent damage of the twin needle, stitch plate
or presser foot. How much you need to reduce
it depends on the width and/or the size of the
twin needle.

17
Bobbin Winding
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spool cap tightly against the spool.
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front to the back. Pull the thread clockwise around
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the inside to the outside.
4. Place the bobbin on the bobbin spindle.
A
B
C
5. Push the bobbin spindle to the right to activate the bobbin winding. Press the foot
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When the bobbin is full, the bobbin winding will slow down and stop automatically.
Push the bobbin spindle to the left. Remove the bobbin and cut the thread.
Inserting the Bobbin
Make sure that the needle is fully raised
and the machine is turned off before in-
serting or removing the bobbin.
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2. Insert the bobbin in the bobbin
case with the thread running in a
counterclockwise direction.
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4. Pull the thread clockwise until it
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5. Replace the bobbin cover.
A
B
C
1.
3.
5.
2.
4.
D

18
Presser Foot Pressure
The presser foot pressure has been pre-set to
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not need to adjust the presser foot pressure.
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very light or heavy fabric, adjusting the pres-
sure can improve the result.
For very light fabrics, loosen the pressure by
turning the dial counterclockwise.
Note: If the dial is turned counterclockwise too
much, it could come off. If this happens, simply re-
place the dial and turn it clockwise until it stays in
place.
For heavy fabric, tighten the pressure by turn-
ing the dial clockwise.
Note: If the dial is turned clockwise until it comes
to a stop, it has reached the maximum pressure
available. Do not try to turn the dial any further!
Thread Tension
To set the thread tension, turn the dial on top
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ting, thread, etc, the tension may need to be
adjusted.
For the best stitch appearance and durability,
make sure the needle thread tension is correctly
adjusted. For general sewing, the threads
evenly meet between the two layers of fabric
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If the bobbin thread is visible on the top side
of the fabric, the needle thread tension is too
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If top thread is visible on the underside of the
fabric, the needle thread tension is too loose
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For decorative stitches and buttonholes, the
top thread should be visible on the underside
of the fabric.
Make a few tests on a scrap piece of the fabric
you are going to sew and check the tension.
Correct tension
Tension too tight
Tension too loose
B
A
C

19
C
Needles
The sewing machine needle plays an important role
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recommend needles of system 130/705H. The needle
package included with your machine contains needles
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Universal Needle (A)
Universal needles have a slightly rounded point and
come in a variety of sizes. For general sewing in a vari-
ety of fabric types and weights.
Stretch Needle (B)
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Marked with a yellow band.
Denim Needle (C)
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Note: Change the needle often. Always use a straight needle
with a sharp point (D).
A damaged needle (E) can cause skipped stitches, breakage
or snapping of the thread. A damaged needle can also dam-
age the stitch plate.
Do not use asymmetrical twin needles (F), since they may
damage your sewing machine.
E
D
F
A B
Changing the Needle
1. Loosen the needle screw. Use the screw-driver
if necessary.
2. Remove the needle.
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away from you until it will go no further.
4. Tighten the needle screw as tight as it will go.

20
Lowering Feed Dogs
You can lower the feed dogs by moving
the switch at the back of the free arm to the
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wish to raise the feed dogs.
Note: The feed dogs will not raise immediately
when the lever is switched. Turn the handwheel
one full turn or start sewing to re-engage the
feed dogs.
Presser Foot Lift
The presser foot is lowered or raised with
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foot lever as far as it goes the lift height of
the presser foot can be increased. This is
useful for easy removal of the presser foot
or when placing heavy fabrics under the
foot.
Changing the Presser Foot
Remove Presser Foot
Press the presser foot downwards until it
snaps off from the presser foot holder.
Attach Presser Foot
Place the presser foot under the presser foot
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Lower the presser foot lifter and the presser
foot will snap into the presser foot holder.
Note: Check that the presser foot is properly
attached by raising the presser foot lift.
A
B
B
A
C
B