SINGER WHA-1 User Manual

STRUCTION BOOK

IN

foreword

Your sewing machine is the product
of mony years of research and
developmer.t in the field of house

hold sewing machines. It is the
ultimate in efficiency, quality and

design, yet its moving and wearing
parts, such as needles, bobbins,
bobbin cases hooks, etc., are

standard and interchangeable with
parts immediately available at

sewing machine stores the world
over.

This precision sewing head, simpli
fied and many labor saving extras,
is the result of our constant effort,

and each machine is built the most

exacting specifications under our

rigid quality control program.

The furniture and attachments are
made by affiliated factories under

our main factory while complete
units are assembled and recheck

ed by our specialists in our factory

strictly.

FMEWORD

Note:

Use standard 15 x 1-needles
available at any sewing ma
chine store.

J

-

Fig. 1

To replace the needle, raise the needle
bar to its highest point by turning the
balance wheel (Rg. 3) TOWARD YOU
by hand. Loosen the needle clamp screw
(A) on the right hand side and the needle

damp will open, allowing the old needle

to fall out.

Remove the old needle and slide the
new needle up (FLAT SIDE TOWARD
THE BALANCE WHEEL) as far as it will
go, when the needle hits the stop it is
in position correctly. Now fasten the

needle clamp securely. For best results
change needles frequently.

needles and thread

Never use a bent needle, nor one with a

blunt point, since this causes imperfect
stitches and may cause the needle to
break. Unless the needle is in CLEAR

TO THE STOP, FLAT SIDE TOWARD
THE BALANCE WHEEL, the machine will

be out of time, and skipped or imperfect
stitches will result and needles may break.
The size of the needle should conform

to the size of the thread and both should

be suitable to the material. Use a needle
sufficiently large to permit the thread to
pass freely through the eye. In general

sewing, use the same size thread in the
bobbin as is used on top.

, Fig. 2

Important:

In the following operations
the needle must always be
above the surface of the
machine.

Raise the needle by turning
the balance wheel TOWARD

YOU by hand.

TO REMOVE THE BOBBIN CASE

Open the window for removing bobbin case

located in the left side of the Oil Re
ceptacle. With left thumb and forefinger
open the latch (A) and hold securely as you

withdraw the bobbin case from around the
holder post (D).

On releasing the latch and turning the
bobbin case downward, the bobbin case

drop out.

TO INSERT THE BOBBIN CASE

After winding a fresh bobbin and threading
the bobbin case (see pagas 8, 9, 10 and

11), hold the case latch with left thumb
and forefinger, (as explained above) to
prevent the bobbin from falling out.
Keeping protruding finger (B) topside to

ward the delivery eye (C), press the
bobbin case around the holder post until
the finger (B) enters the delivery eye and

the latch mechanism catches the groove
near the end of the stud. This operation
is easy NEVER FORCE IT. Three or
four inches of the thread hanging free
from the bobbin case will be brought up

through the needle plate stitch hole as
shown on page 12.

Fig. 3

Fig. 4

NOTE: This machine uses standard 15

class bobbins available at all sewing
stores. The bobbin can be wound
while machine is in operation by not
releasing the stop motion knob as de
scribed in below paragraph. Therefore
needle and bobbin winder will operate
at the same time.

Holding the balance wheel with the left hand,

turn the stop motion knob toward you. This
will permit tne balance wheel to turn freely
while the needle bar remains motionless.
Place a spool of thread on the spool (A).

Pass the thread through the tension disc (B)
at right corner of the base of the machine.
Now wind the end of the thread around an

empyt bobbin seven or eight times and place
the threaded bobbin on the spindle ‘(C) of
t^’e bobbin winder. Press the bobbin into
the spindle with the left hand, making sure

that the PIN on the spindle fits into the
SLOT in the bobbin. Push the bobbin winder
lever (D) down until the small rubber wheel

presses against the hub of the balance wheel
and the clasp (E} falls between the sides of
the bobbin, holding it in position. Turn the
balance wheel toward you and proceed to
operate the rheostat control, as in sewing,
when the bobbin is full, it will release auto
matically and stop turning. Break off the

thread and detach the bobbin from the spindle.

Hold balance wheel firmly with left hand and
with right hand turn the stop motion knob
away from you until the machine is tight and
the needle bar moves with the turning of

the balance wheel.