Singer 14U 34B Manual

U 34B/234B
Operator’s
Guide
SINGER

14U 34B/234B
PREFACE
Thank you for your purchase of this sewing machine.
This machine intended for household use will provide you with excellent performance in sewing from
light to heavy material (lawn to denim). Please refer to this booklet for proper use and optimum service.
To get the most out of your sewing machine, read the entire operator’s manual before attempting to
operate the machine. Then familiarize yourself with the machine by foilwing the operator’s manual page
by page.
To ensure that you are always provided with the most modern sewing capabilities, the manufacturer reseves
the right to change the appearance, design or accessories of this sewing machine when considered necessary
without notification or obligation.
Copyright©1990 SINGER SEWING MACHINE COMPANY
All Rights Reserved Throughout The World

IMPORTANT SAFETY INSTRUCTIONS
When using this machine, basic safety precautions should always be followed including the following.
Read all instructions before using this machine.
DANGER
— To reduce the risk of electric shock:
■ The machine should never be left unattended when plugged in. Always unplug the machine from the
electric outlet immediately after using and before cleaning.
■ Always unplug before relamping. Replace bulb with the same type rated 12 volt, 6 watts. Be sure to
replace the face plate which covers the light bulb before operating the machine.
- To reduce the risk of burns, fire, electric shock or injury to persons:
■ Be sure that the electrical voltage of the socket outlet (wall receptacle) is the same as the rated voltage
of the motor.
■ Use this machine only for its intended use as described in this Operator’s Guide. Use only attachments
recommended by the manufacturer as contained in the Operator’s Guide.
■ To disconnect, turn all controls to the off (“0”) position, then remove plug from outlet.
■ Disconnect the power line plug from the socket outlet or switch the machine off when making any
adjustments in the needle area, such as threading needle and loopers, changing needle, changing throat
plate or changing presser foot, etc.
■ Always unplug the machine from the electrical outlet when removing covers, lubricating, or when
making any other user servicing adjustments mentioned in the Operator’s Guide.
■ Do not attempt to adjust the motor belt. Contact your nearest Service Center should any adjustment
be required.
■ Do not unplug by pulling on cord. To unplug, grasp the plug, not the cord.
■ Handle the foot controller with care and avoid dropping it on the floor. Be sure not to place anything
on top of it.
■ Always use the proper throat plate. The wrong plate can cause the needle to break.
■ Do not use bent needles.
■ When sewing, keep fingers away from all moving parts. Special care is required around the sewing
machine needle.
■ Do not pull or push fabric while stitching. It may deflect the needle causing it to break.
■ For double insulated machines, when servicing use only identical replacement parts. See instructions
for Servicing of Double-Insulated Appliances.
■ Use only the handle to lift and move the machine.
■ Never operate the 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 the water. Return the machine to the nearest authorized dealer
or Service Center for examination, repair, electrical, or mechanical adjustment.
■ Never operate the machine with any air openings blocked. Keep ventilation openings of the machine
and foot controller free from the accumulation of lint, dust, and loose cloth.

■ Never drop or insert any object into any opening.
■ Do not use outdoos.
■ Do not operate where aerosol (spray) products are being used or where oxygen is being adminstered.
■ Do not allow to be used as a toy. Close attention is necessary when the machine is used by or near
children.
■ Do not expose the machine or machine plastic case to sunlight directly. Also, do not keep it in a very
warm or damp place.
■ SERVICINCj OF DOUBLE-INSULATED PRODUCTS. In a double-insulated product, two systems
of insulation are provided instead of grounding. No grounding 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 qualified
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.”
SAVE THESE INSTRUCTIONS
Servicing should be performed by an authorized service representative.
This product is intended for household use.
FOR EUROPEAN AND SIMILAR TERRITORIES:
This product is suppressed for radio and television interference with the International Electrotechnical
Commission requirements of the CISPR.
Machines for Great Britain and some other countries having similar wiring standards are shipped from
the factory without a plug for connection to the mains. The wires in this mains lead are colored in accord¬
ance with the following code.
Blue: neutral (N) Brown: live (L)
As the colors of the wires in the mains lead of this appliance may not correspond with the colored markings
identifying the terminals in your plug, proceed as follows:
The wire which is colored blue must be connected to the terminal which is marked with the letter N or
colored black. The wire which is colored brown must be connected to the terminal which is marked with
letter L or colored red. If a 13 Amp. (BS 1363) plug is used, a 3 Amp. fuse must be fitted, or if any other
type of plug is used, a 5 Amp. fuse must be fitted either in the plug or adaptor or at the distribution board.
Neither cord is to be connected to the earth terminal of a three-pin plug.

CONTENTS
Page
1. Principal parts. 2
2. Preparation prior to sewing. 3
3. Threading the machine . 4
• Setting up the thread guide holder.4
• How to open looper cover .. 4
• How to remove cylinder cover...4
• How to thread your machine correctly. J . 5
• How to change threads .. 8
4. Chain off and test sew. 8
5. 1-Needle, 3-Threads overedge stitching. 9
6. How to adjust thread tension .10
7. How to adjust stitch length.12
8. How to adjust overedge seam width..12
9. How to do rolled hemming. 1 3
10. Differential feed (with differential feed machine only).15
• Gathered overedge ..15
• Stretch overedge.16
11. Free arm sewing (tubular work).17
12. Seam guide lines.17
13. Edge guide (optional parts).17
14. Variation stitch.18
• Ornamental stitching.18
• Blindstitching .19
• Braiding by chaining-off.19
• Pin tuking.20
• Turning square corners .20
15. How to replace needles . 2 1
16. How to replace stationary knife. 2 2
17. How to exchange light bulb .22
18. How to adjust presser foot pressure.22
19. Cleaning.23
20. Reasons for poor stitches and how to make adjustment. 24
21. Relationship between cloth, thread and needle.25
22. Accessories. 2 6
23. Specification. 2 6
1

1. Principal parts
Thread guide holder
Left hand looper thread tension dial
Right hand looper thread tension dial
Pressure regulating screw I I
Right needle thread tension dial
Left needle thread tension dial ^
Handle
Spool pin
Convertible bed plate
Throat plate^
Free arrn
Spool stand
siNce*
Looper cover
Machine with looper cover opened
Motor cover
; Handwheel
Stitch length dial
Power switch
(used also for light switch)
Movable knife
Presser foot
R. looper
\ i 1
L. looper
Stationary knife

2. Preparation prior to sewing
Connect the machine plug to the electrical receptacle of your machine and the power line plug to the wall
receptacle.
For 120/220/240V
Power switch
(used also for light switch)
Push ''I” mark side
to turn "ON"
Push "O" mark side
to turn "OFF"
For 120V
Power switch
(used also for light switch)
When the switch is ON,
the red mark on the knob
is visible
Controller
Power line plug
Wall receptacle
To run the machine and control the speed, press the speed controller. The harder you press, the faster the
machine will sew. To stop the machine from sewing, remove your foot from the speed controller.
Warning:
• Be sure that the electrical voltage of the socket outlet (wall receptacle) is the same as the rated voltage of
the motor.
• Handle the foot controller with care and avoid dropping it on the floor. Be sure not to place anything
on top of it.
• Disconnect the power-line plug from the socket outlet when changing needles, presser feet or throat
plates, or when leaving the machine unattended. This eliminates the possibility of starting the machine
by accidentally pressing the speed controller.
• Before cleaning your machine, disconnect the power-line plug from the socket outlet.
3

3. Threading the machine
• Setting up the thread guide holder
• How to open looper cover
C'Tm
Thread guide
Thread guide
holder
Extend the thread guide holder as far as possible
and set the thread guides so that they are located
right above the spool pins.
Place the thread on the spool stand as shown
above.
0 Push the cover to the right as
far as it will go and
© Pull cover down toward you.
Caution:
* Be sure looper cover is closed when sewing.
• How to remove cylinder cover
0 While pulling the cylinder cover to the left,
® Lift cover upward and off the machine.
To replace cover
throat plate.
0 Press cover downward to the right.
Warning:
Do not hold the cylinder cover when lifting or carrying the machine.
Caution:
Be sure cylinder cover is replaced when sewing.

• How to thread your machine correctly
Correct sewing cannot be obtained when machine is threaded incorrectly.
Threading is diagrammed on the inner side of the looper cover and identified with colors on the various
thread guides.
(1) Open looper cover. Thread the right looper in the order (T) to (8) as indicated in the figure below,
(threading points marked in orange)
While holding thread with finger, pass it
between the tension discs and pull thread
down to make certain it is properly located
in between the tension discs.
• Use tweezers provided in the accessory set when
threading looper thread hole (8).
• Draw about 5cm (2 inches) of thread from the
looper thread hole.
5

(2) Thread left looper in sequence from (a) to ® (marked in yellow color). Cylinder cover must also be
removed when threading this part. (Refer to page 4 for cylinder cover removal).
While holding thread with finger,
pass it between the tension discs
and pull thread down to make
certain it is properly located in
between the tension discs.
Turn hand wheel toward you
until left looper is at left as far
as it will go and thread looper
thread hole (£) from left to
right. (Use tweezers provided in
your accessory set).
Turn hand wheel toward you until
the looper is at right as far as
it will go passing the thread under
the throat plate, then using the
tweezers, thread the looper thread
hole ® from front to back. Draw
about 5cm (2 inches) of thread
from thread hole.
Note: When left looper thread breaks or when changing
the thread, be sure to pass the left looper thread
through the inner side of the needle thread as
shown. If it is difficult to thread the left looper
in the manner described above, cut the needle
thread and rethread left looper first and then
the needle to avoid erroneous threading.
6