SINGER 3337 Simple Sewing Machine Refurbished

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User Manual

This is the main product document for model 3337.

The file format is pdf, 36 pages, you can download this manual here .

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3337 Instruction Manual
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II
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 in 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 :
- A sewing machine should never be left unattended when plugged in. Always unplug this sewing
machine from the electric outlet immediately after using and before cleaning, removing covers,
lubricating or when making any other user servicing adjustments mentioned in the instruction
manual.
WARNING - To reduce the risk of burns, re, electric shock, or injury to
person :
- Do not allow to be used as a toy. Close attention is necessary when this sewing machine is used
by or near children.
- Use this sewing machine only for its intended use as described in this manual. Use only
attachments recommended by the manufacturer as contained in this manual.
- Never operate this sewing machine if it has a damaged cord 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
IMPORTANT SAFETY INSTRUCTIONS
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III
nearest authorized dealer or service center for examination, repair, electrical or mechanical
adjustment.
- Never operate the sewing machine with any air openings blocked. Keep ventilation openings of
the sewing machine and foot control free from the accumulation of lint, dust, and loose cloth.
- Keep ngers away from all moving parts. Special care is required around the sewing machine
needle.
- Always use the proper needle plate. The wrong plate can cause the needle to break.
- Do not use bent needles.
- Do not pull or push fabric while stitching. It may deect the needle causing it to break.
- Wear safety glasses.
- Switch the sewing machine off (“O”) when making any adjustment in the needle area, such as
threading needle, changing needle, threading bobbin, or changing presser foot, etc.
- Never drop or insert any object into any opening.
- Do not use outdoors.
- Do not operate where aerosol (spray) products are being used or where oxygen is being
administrated.
- To disconnect, turn all controls to the off (“O”) position, then remove plug from outlet.
- Do not unplug by pulling on cord. To unplug, grasp the plug, not the cord.
- The foot control is used to operate the machine. Avoid placing other objects on the foot control.
- Do not use the machine if it is wet.
- If the LED lamp is damaged or broken, it must be replaced by the manufacturer or its service
agent or a similarly qualied person, in order to avoid a hazard.
- If the supply cord connected with the foot control is damaged, it must be replaced by the
manufacturer or its service agent or a similarly qualied person, in order to avoid a hazard.
- This sewing machine is provided with double insulation. Use only identical replacement parts.
See instructions for Servicing of Double-Insulated Appliances.
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IV
SAVE THESE INSTRUCTIONS
For Europe only :
This appliance can be used by children aged from 8 years and above and persons with reduced
physical, sensory or mental capabilities or lack of experience and knowledge if they have been
given supervision or instruction concerning use of the appliance in a safe way and understand the
hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall
not be made by children without supervision.
The noise level under normal operating conditions is less than 75dB(A).
The machine must only be used with foot control of type KD-1902, FC-1902 (110-120V area) / KD-
2902, FC-2902A, FC-2902C, FC-2902D (220-240V area) manufactured by ZHEJIANG FOUNDER
MOTOR CORPORATION LTD. (China) / 4C-316B (110-125V area) / 4C-316C (127V area) /
4C-326C (220V area) / 4C-326G (230V area) / 4C-336G (240V area) / 4C-336G (220-240V area)
manufactured by Wakaho Electric Ind. Co., Ltd. (Vietnam)
For outside Europe :
This sewing machine is not intended for use by persons (including 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. Children should be supervised to ensure that they do not play with the sewing machine.
The noise level under normal operating conditions is less than 75dB(A).
The machine must only be used with foot control of type KD-1902, FC-1902 (110-120V area) / KD-
2902, FC-2902A, FC-2902C, FC-2902D (220-240V area) manufactured by ZHEJIANG FOUNDER
MOTOR CORPORATION LTD. (China) / 4C-316B (110-125V area) / 4C-316C (127V area) /
4C-326C (220V area) / 4C-326G (230V area) / 4C-336G (240V area) / 4C-336G (220-240V area)
manufactured by Wakaho Electric Ind. Co., Ltd. (Vietnam)
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V
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
be added to the product. Servicing of a double-insulated product requires extreme care and
knowledge of the system and should be done only by qualied service personnel. Replacement
parts for a double-insulated product must be identical to those parts in the product. A double-
insulated product is marked with the words “DOUBLE INSULATION” or “DOUBLE INSULATED”.
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Congratulations
As the owner of a new SINGER
®
sewing machine, you are about to begin an exciting adventure
in creativity. From the moment you rst use your machine, you will know you are sewing on
one of the easiest to use sewing machines ever made.
May we recommend that, before you start to use your sewing machine, you discover the many
features and the ease of operation by going through this instruction book, step by step, seated
at your machine.
To ensure that you are always provided with the most modern sewing capabilities, the
manufacturer reserves the right to change the appearance, design or accessories of this
sewing machine when considered necessary.
SINGER
®
is the exclusive trademark of The Singer Company Limited S.à.r.l. or its Afliates.
©2016 The Singer Company Limited S.à.r.l. or its Afliates. All rights reserved.
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VII
M
achine Basics
Principal Parts of the Machine .............................................................................................................................................. 1-2
Connecting Machine to Power Source .................................................................................................................................... 3
Two Step Presser Foot Lifter ................................................................................................................................................... 4
Accessories ............................................................................................................................................................................. 5
Treading the Machine
Winding the Bobbin .................................................................................................................................................................. 6
Inserting the Bobbin ................................................................................................................................................................. 7
Threading the Upper Thread.................................................................................................................................................... 8
Automatic Needle Threader .................................................................................................................................................... 9
Raising the Bobbin Thread .................................................................................................................................................... 10
Thread Tension .......................................................................................................................................................................11
Sewing
How to Choose Your Pattern ................................................................................................................................................ 12
Stitch Length Dial ................................................................................................................................................................. 13
Sewing Straight Stitch ............................................................................................................................................................ 14
Reverse Sewing ..................................................................................................................................................................... 15
Removing the Work ............................................................................................................................................................... 15
Cutting the Thread ................................................................................................................................................................. 15
Choosing Stretch Stitch Patterns ........................................................................................................................................... 16
Blind Hem .............................................................................................................................................................................. 17
Buttonholes ............................................................................................................................................................................ 18
Sewing on Buttons ................................................................................................................................................................. 19
General Information
Installing the Removable Extension Table .............................................................................................................................. 20
Changing the presser foot ..................................................................................................................................................... 21
Needle/ Fabric/ Thread Chart ................................................................................................................................................ 22
Darning plate ......................................................................................................................................................................... 23
Maintenance and Troubleshooting
Inserting the needle ............................................................................................................................................................... 24
Cleaning the Feed Teeth and Hook Area ............................................................................................................................... 25
Troubleshooting Guide ........................................................................................................................................................... 26
List of contents
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1
Principal Parts of the Machine
1. Thread tension dial
2. Thread take-up lever
3. Thread cutter
4. Presser foot
5. Needle plate
6. Removable extension table/ accessory storage
7. Reverse sewing lever
8. Bobbin stopper
9. Stitch length dial
10. Pattern selector dial
11. One step buttonhole lever
12. Automatic threader
Unpacking
- Place the box on a steady, flat surface. Lift your machine
out of the box and remove the outer packaging.
- Remove all other packing material and the plastic bag.
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2
Principal Parts of the Machine
1. Horizontal spool pin
2. Bobbin winding spindle
3. Hole for auxiliary spool pin
4. Handwheel
5. Power and light switch
6. Main plug socket
7. Bobbin thread guide
8. Upper thread guide
9. Face plate
10. Handle
11. Presser foot lifter
12. Foot speed control
13. Power cord
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3
Connect the machine to a power source as illustrated. (1)
This appliance is equipped with a polarized plug which must
be used with the appropriate polarized outlet. (2)
Attention:
Unplug power cord when machine is not in use.
Foot control
The foot control pedal regulates the sewing speed. (3)
Attention:
Consult a qualied electrician if in doubt of how to connect
machine to power source.
Sewing light
Press main switch (A) to " l " for power and light.
IMPORTANT NOTICE
For appliance with a polarized plug (one blade is wider
than the other). To reduce the risk of electric shock, this
plug is intended to t in a polarized outlet only one way. If
it does not t fully in the outlet, reverse the plug. If it still
does not t, contact a qualied electrician to install the
proper outlet. Do not modify the plug in any way.
a. Polarized attachment plug
b. Conductor intended to be grounded
Connecting Machine to Power Source
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1
When sewing several layers or thick fabrics, the presser foot
can be raised to a higher position for easy positioning of the
work. (A)
Attention:
Your SINGER
®
machine is adjusted to provide the best
stitch result at normal room temperature. Extreme hot and
cold temperatures can affect the sewn result.
Two Step Presser Foot Lifter
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Standard accessories
a. All purpose foot
b. Zipper foot
c. Buttonhole foot
d. Button sewing foot
e. Seam ripper/ brush
f. Edge/ quilting guide
g. Pack of needles
h. Spool holders
i. Bobbin (3x)
j. L-screwdriver
k. Darning plate
l. Auxiliary Spool Pin
m. Spool pin felt
n. Soft cover
Optional Accessories:
For information about additional presser feet, attachments
and accessories that may be available for your machine, visit
www.singer.com.
Accessories
k
e
gf
m
l
a b c
d
h
n
j
i
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Winding the Bobbin
- Place thread and corresponding spool holder on to spool
pin. (1/2)
- Snap thread into thread guide. (3)
- Wind thread clockwise around bobbin winder tension discs.
(4)
- Thread bobbin as illustrated and place on spindle. (5)
- Push bobbin spindle to right. (6)
- Hold thread end. (7)
- Step on foot control pedal. (8)
- Cut thread. (9)
- Push bobbin spindle to left (10) and remove.
Please Note:
When the bobbin winder spindle is in “bobbin winding”
position, the machine will not sew and the hand wheel will not
turn. To start sewing, push the bobbin winder spindle to the
left (sewing position).
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- When inserting or removing the bobbin, the needle must be
fully raised. (1)
- Remove the bobbin cover plate and bobbin. (2)
- Insert the bobbin in the bobbin case with the thread running
in a counterclockwise direction (arrow). (3)
- Pull the thread through the slit (A). (4)
- With a finger held gently on top of the bobbin, place thread
into guides as shown. (5)
- To cut off excess thread pull it toward you to cut it with the
cutter at point (B). Replace the bobbin cover plate. (6)
Attention:
Turn power switch to off (“O”) before inserting or removing
the bobbin.
Inserting the Bobbin
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This is a simple operation but it is important to carry out
correctly as by not doing so several sewing problems could
result.
- Start by raising the needle to its highest point (1), and
continue turning the handwheel counterclockwise until the
needle just slightly begins to descend. Raise the presser
foot to release the tension discs.
Note: For safety, it is strongly suggested you turn off the
power before threading.
- Lift up the spool pin. Place the spool of thread on the holder
with the thread coming off the spool as shown. For small
thread spools, place small side of spool holder next to
spool. (2)
- Draw thread from spool through the upper thread guide (3)
and pulling thread through pre-tension spring as illustrated.
(4)
- Thread tension module by leading thread down right channel
and up left channel. (5) During this process it is helpful to
hold the thread between the spool and thread guide.
- At the top of this movement pass thread from right to
left through the slotted eye of the take-up lever and then
downwards again. (6)
- Now pass the thread behind the horizontal thread guide,
and then behind the thin wire needle clamp guide (7) and
then down to the needle which should be threaded from
front to back.
- Pull about 6-8 inches of thread to the rear beyond the needle
eye. Trim thread to length with built in thread cutter. (8)
Threading the Upper Thread
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- Raise the needle to its highest position.
- Pass thread around thread guide (A). (1)
- Press lever (B) down as far as it will go. (2)
- The threader automatically swings to the threading position
(C).
- Pass the thread in front of the needle around the hook (D)
from bottom to top.
- Release lever (B). (3)
- Pull the thread through the needle eye.
Attention:
Turn power switch to off (“O”)!
Automatic Needle Threader
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Hold the upper thread with the left hand. (1)
Turn the handwheel towards you (counterclockwise) lowering,
then raising needle.
Note:
If it is difcult to raise the bobbin thread, check to make
sure the thread is not trapped by the hinged cover or the
Removable Extension Table.
Gently pull on the upper thread to bring the bobbin thread up
through the needle plate hole. (2)
Lay both threads to the back under the presser foot. (3)
Raising the Bobbin Thread
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Thread Tension
Upper thread tension
Basic thread tension setting: “4”.
To increase the tension, turn the dial to the next number up.
To reduce the tension, turn the dial to the next number down.
1. Normal thread tension for straight stitch sewing.
2. Thread tension too loose for straight stitch sewing. Turn
dial to higher number.
3. Thread tension too tight for straight stitch sewing. Turn dial
to lower number.
4. Normal thread tension for zig zag and decorative sewing.
Correct thread tension is when a small amount of the upper
thread appears on the bottom side of fabric.
Lower thread tension
The bobbin tension has been set correctly at the factory, so
you do not need to adjust it.
Please note:
- Proper setting of tension is important to good sewing.
- There is no single tension setting appropriate for all stitch
functions, thread or fabric.
- A balanced tension (identical stitches both top and bottom)
is usually only desirable for straight stitch construction
sewing.
- 90% of all sewing will be between 3 and 5.
- For zig zag and decorative sewing stitch functions, thread
tension should generally be less than for straight stitch
sewing.
- For all decorative sewing you will always obtain a nicer
stitch and less fabric puckering when the upper thread
appears on the bottom side of your fabric.
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The diagram on this page display the stitch patterns available
on the machine.
Stitches in the top of the diagram are indicated on the Pattern
Selector Dial in gray. To select the patterns indicated with the
gray color, turn the Pattern Selector Dial. (c)
Use the Stitch Length Dial (b) to adjust the stitch length as
desired for the project.
To obtain the other patterns, turn the stitch length dial to “S1”
or “S2” and select the pattern desired with pattern selector
dial.
The Pattern Selector Dial may be turned in either direction.
a. Reverse Sewing Lever
b. Stitch Length Dial
c. Pattern Selector Dial
How to Choose Your Pattern
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Function of stitch length dial while zig-zag stitching
Set the Pattern Selector Dial to “ ”.
The density of zig-zag stitches increase as the setting of
stitch length dial approaches “0“.
Neat zig-zag stitches are usually achieved at “3“ or below.
Dense zig-zag stitches are called satin stitches.
Function of stitch length dial for when straight stitching
For straight stitch sewing, turn the Pattern Selector Dial to
the straight stitch setting. Turn the Stitch Length Dial, and
the length of the individual stitches will decrease as the dial
approached "0". The length of the individual stitches will
increase as the dial approaches “4“. Generally speaking, use
a longer stitch length when sewing heavier weight fabrics or
when using a thicker needle or thread. Use a shorter stitch
length when sewing lighter weight fabrics or when using a
ner needle or thread.
Stitch Length Dial
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Sewing Straight Stitch
To begin sewing, set the machine for straight stitch. (1)
Place the fabric under the presser foot with the fabric edge
lined up with the desired seam guide line on the needle plate.
(2)
Lower the presser foot lifter, and then step on the foot
controller to start sewing. (3)
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To secure the beginning and the end of a seam, press down
the reverse sewing lever (A). Sew a few reverse stitches.
Release the lever and the machine will sew forward again. (1)
Reverse Sewing
Turn the handwheel toward you (counterclockwise) to bring
the thread take up lever to its highest position, raise the
presser foot and remove work behind the needle and presser
foot. (2)
Removing the Work
Pull the threads under and behind the presser foot. Guide the
threads to the side of the face plate and into thread cutter (B).
Pull threads down to cut. (3)
Cutting the Thread
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The stretch stitch patterns are indicated with blue and red
colors on the pattern selector dial.
To select these stitches, turn the Pattern Selector Dial to
the desired pattern. Then, turn the Stitch Length Dial to the
indicator marked “S1” or “S2”. Though there are several
stretch patterns, here are two examples:
Straight Stretch Stitch (1)
Set the Pattern Selector Dial to “ “ or “.
Used to add triple reinforcement to stretch and hardwearing
seams.
The machine sews two stitches forward and one stitch
backwards.
Ric Rac (2)
Set the Pattern Selector Dial to “ “.
Ric Rac Stitch is suitable for rm fabrics like denim, corduroy,
poplin, duck, etc.
Choosing Stretch Stitch Patterns
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For hems on curtains, trousers, skirts, etc.
Blind hem for stretch fabrics.
Blind hem for rm fabrics.
Set the Stitch Length Dial with the range shown on the
diagram at the right. Blind hems, however, are normally sewn
with a longer stitch length setting. Sew a test rst to make
sure the machine settings are appropriate for the fabric.
Blind Hem:
Turn up the hem to the desired width and press. Fold back
(as shown in Fig. 1) against the right side of the fabric with
the top edge of the hem extending about 7 mm (1/4") to the
right side of the folded fabric.
Start to sew slowly on the fold, making sure the needle
touches slightly the folded top to catch one or two fabric
threads. (2)
Unfold the fabric when hemming is completed and press.
Note:
To make blind hem sewing even easier, use a blind hem
foot, available from your SINGER
®
retailer.
Blind Hem
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Buttonholes
Buttonhole sewing is a simple process that provides reliable
results. However, it is strongly suggested to always make a
practice buttonhole on a sample of your fabric and stabilizer.
Making a Buttonhole
1. Using tailor's chalk, mark the position of the buttonhole on the
fabric.
2. Attach the buttonhole foot and set the Pattern Selector Dial to .
Set stitch length dial to .
3. Lower the presser foot aligning the marks on foot with the marks
on the fabric (A). (The front bar tack will be sewn first.) (Align the
mark on the fabric (a) with the mark on the foot (b).)
4. Open the button plate and insert the button (B).
5. Lower the buttonhole lever and gently push it back (C).
6. While lightly holding the upper thread, start the machine.
7. Buttonhole stitching is done in the order (D).
8. Stop the machine when the buttonhole cycle has completed.
Making a Buttonhole on Stretch Fabrics (E)
When sewing buttonholes on stretch fabric, hook heavy thread or
cord under the buttonhole foot. When the buttonhole is sewn the legs
will overcast the cord.
1. Mark the position of the buttonhole on the fabric with the tailor's
chalk, attach the buttonhole foot, and set the pattern selector dial
to . Set stitch length dial to .
2. Hook the heavy thread onto the back end of the buttonhole foot,
then bring the two heavy thread ends to the front of the foot,
insert them into the grooves and temporarily tie them there.
3. Lower the presser foot and start sewing.
4. Once sewing is completed, gently pull the heavy thread to
remove any slack, then trim off the excess.
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Install the darning plate. (1)
Change the all purpose foot to the button sewing foot. (2)
Set the stitch length to ”0”.
Place the button and fabric under the Button Sewing foot, as
illustrated in (3).
Set the machine for zig-zag stitch. Adjust the dial until the
needle moves from the left hole into the right hole of the
button without interference. Turn the handwheel to check that
the needle goes cleanly into the left and right holes of the
button. Slowly sew on the button with about 10 stitches.
Raise the needle out of the fabric. Set the machine for
straight stitch again, then sew a few securing stitches to
nish.
If a shank is required, place a darning needle on top of the
button and sew (4). For buttons with 4 holes, sew through
the front two holes rst, push the work forward and then sew
through the back two holes.
Sewing on Buttons
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Hold the removable extension table horizontally, and push it
in the direction of the arrow. (1)
To remove the extension table, pull it toward the left.
The inside of the removable extension table can be utilized as
an accessory box.
To open, ip cover down as shown. (2)
Installing the Removable Extension Table
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Removing the presser foot
Push the presser foot (e) to disengage from the cut-out (c). (1)
Attaching the presser foot
Install the pin (d) of the presser foot (e) into the cut-out (c) of
the presser foot holder. (2)
Removing and Attaching the presser foot shank
Raise the presser bar (a) with the presser foot lifter.
Remove and attach the presser foot shank (b) as illustrated. (3)
Attaching the edge/ quilting guide
Attach the edge/quilting guide (f) in the slot as illustrated.
Adjust as needed for hems, pleats, quilting, etc. (4)
Attention:
Turn power switch to off (“O”) when carrying out any of the
above operations!
Changing the presser foot
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Needle/ Fabric/ Thread Chart
NEEDLE SIZE FABRICS THREAD
9-11 (70-80)
Lightweight fabrics-thin cottons, voile, silk, muslin, interlocks,
cotton knits, tricots, jerseys, crepes, woven polyester, shirt &
blouse fabrics.
Light-duty thread in cotton, nylon, polyester
or cotton wrapped polyester.
11-14 (80-90)
Medium weight fabrics-cotton, satin, kettlecloth, sailcloth,
double knits, lightweight woolens.
Most threads sold are medium size and
suitable for these fabrics and needle sizes.
Use polyester threads on synthetic materials
and cotton on natural woven fabrics for best
results.
Always use the same thread on top and
bottom.
14 (90)
Medium weight fabrics-cotton duck, woolen, heavier knits,
terrycloth, denims.
16 (100)
Heavyweight fabrics-canvas, woolens, outdoor tent and
quilted fabrics, denims, upholstery material (light to medium).
18 (110)
Heavy woolen, overcoat fabrics, upholstery fabrics, some
leathers and vinyls.
Heavy duty thread, carpet thread.
NEEDLE, FABRIC, THREAD SELECTION GUIDE
IMPORTANT: Match needle size to thread size and weight of fabric.
NEEDLE, FABRIC SELECTION
NEEDLES EXPLANATION TYPE OF FABRIC
SINGER
®
2020
Standard sharp needles. Sizes range
thin to large. 9 (70) to 18 (110).
Natural woven fabrics-wool, cotton, silk, etc.
Not recommended for double knits.
SINGER
®
2045
Semi-ball point needle, scarfed. 9 (70)
to 18 (110).
Natural and synthetic woven fabrics, polyester blends.
Knits-polyesters, interlocks, tricot, single and double knits. Also
sweater knits, Lycra
®
, swimsuit fabric, elastic.
SINGER
®
2032 Leather needles. 12 (80) to 18 (110).
Leather, vinyl, upholstery.
(Leaves smaller hole than standard large needle.)
Note :
1. For best sewing results always use genuine SINGER
®
needles.
2. Replace needle often (approximately every other garment ) and/ or at rst thread breakage or skipped stitches.
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For certain types of work, (e.g. darning or free-hand
embroidery), the darning plate must be used.
Install the darning plate as illustrated.
For normal sewing, remove the darning plate.
For free-motion sewing it is recommended to use a darning/
embroidery foot, available as an optional accessory from
SINGER
®
retailers.
Darning plate
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Change the needle regularly, especially if it is showing signs
of wear and causing problems. For best sewing results
always use SINGER
®
Brand Needles.
Insert the needle as illustrated as follows:
A. Loosen the needle clamp screw and tighten again after
inserting the new needle. (1)
B. The at side of the shaft should be towards the back.
C/D. Insert the needle as far up as it will go.
Attention:
Turn power switch to off (”O”) before inserting or removing
the needle.
Needles must be in perfect condition. (2)
Problems can occur with:
A. Bent needles
B. Damaged points
C. Blunt needles
Inserting the needle
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If lint and bits of thread accumulate in the hook, this will
interfere with the smooth operation of the machine.
Check regularly and clean the stitching mechanism when
necessary.
Attention:
Disconnect the machine from the wall outlet before
carrying out any maintenance.
1. Remove the bobbin cover plate and bobbin.
2. Clean the bobbin holder with a brush.
3. Remove the needle, presser foot and presser foot holder.
Remove the screw holding the needle plate and remove
the needle plate.
4. Lift up the bobbin case and remove it.
5. Clean the hook race, feed dog and bobbin case with a
brush. Also clean them, using a soft, dry cloth.
6. Replace the bobbin case into the hook race so that the tip
(a) fits to the stopper (b) as shown.
Cleaning the Feed Teeth and Hook Area
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Troubleshooting Guide
Problem
Upper thread breaks
Skipped stitches
Needle breaks
Loose stitches
Seams gather or
pucker
Uneven stitches,
uneven feed
The machine is
noisy
The machine jams
Cause
1. The machine is not threaded correctly.
2. The thread tension is too tight.
3. The thread is too thick for the needle.
4. The needle is not inserted correctly.
5. The thread is wound around the spool holder pin.
6. The needle is damaged.
1. The needle is not inserted correctly.
2. The needle is damaged.
3. The wrong size or type of needle has been used.
4. The foot is not attached correctly.
1. The needle is damaged.
2. The needle is not correctly inserted.
3. Wrong needle size for the fabric.
4. The wrong foot is attached.
1. The machine is not correctly threaded.
2. The bobbin case is not correctly threaded.
3. Needle/ fabric/ thread combination is wrong.
4. Thread tension wrong.
1. The needle is too thick for the fabric.
2. The stitch length is incorrectly adjusted.
3. The thread tension is too tight.
1. Poor quality thread.
2. The bobbin case is incorrectly threaded.
3. Fabric has been pulled.
1. Lint or oil have collected on the hook or needlebar.
2. The needle is damaged.
Thread is caught in the hook.
Correction
1. Rethread the machine.
2. Reduce the thread tension. (lower number)
3. Select a larger needle.
4. Remove and reinsert the needle. (at side towards the back)
5. Remove the reel and wind thread onto reel.
6. Replace the needle.
1. Remove and reinsert needle. (at side towards the back)
2. Insert a new needle.
3. Choose a needle to suit the thread and fabric.
4. Check and attach correctly.
1. Insert a new needle.
2. Insert the needle correctly. (at side towards the back)
3. Choose a needle to suit the thread and fabric.
4. Select the correct foot.
1. Check the threading.
2. Thread the bobbin case as illustrated.
3. The needle size must suit the fabric and thread.
4. Correct the thread tension.
1. Select a ner needle.
2. Readjust the stitch length.
3. Loosen the thread tension.
1. Select a better quality thread.
2. Remove bobbin case, thread and insert correctly.
3. Do not pull on the fabric while sewing, let it be drawn through
by the machine.
1. Clean the hook and feed dog as described.
2. Replace the needle.
Remove the upper thread and bobbin case, turn the handwheel
backwards and forwards by hand and remove the thread.
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Please note that on disposal, this product must be safely recycled in accordance with relevant National legislation
relating to electrical/electronic products. Do not dispose of electrical appliances as unsorted municipal waste,
use separate collection facilities. Contact your local government for information regarding the collection systems
available. When replacing old appliances with new ones, the retailer may be legally obligated to take back your old
appliance for disposal free of charge.
If electrical appliances are disposed of in landlls or dumps, hazardous substances can leak into the groundwater
and get into the food chain, damaging your health and well-being.
021Q4G0104(EN)

Specifications

Indexed Terms: Sewing Machine

SINGER 3337 Questions and Answers

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