See Fig. 2. Raise the needle bar ® to its highest point, turning
hand wheel toward you by hand. Then loosen the needle clamp
screw ® and the needle can be inserted into clamp (3).
Fig. 2
Place needle (Fig.3, FLAT SIDE TO RIGHT) in the needle clamp
and push it upward as far as it will go into the needle clamp hole,
tightening the needle clamp screw securely with a screw driver.
After changing the needle, make one complete revolution of the
hand wheel by hand to be sure the needle is in the correct position.
WINDING THE BOBBIN
Disengage the hand wheel CCD, Fig. 4) from the stitching
mechanism by turning the clutch (®, Fig. 4) toward you or counter
clockwise. Place a spool of thread on one of the spool pins and lead
thread around one set of arm thread guide ((D, Fig. 4). Run end of
over small pin on spindle. Push bobbin winder lever (®, Fig. 4)
against bobbin. Hold thread end loosely and start machine slowly.
Bobbin will stop winding when it is filled.
Turn clutch away To reengage stitching mechanism turn clutch
(CD,Fig 4) clockwise.
flat side
Fig. 3
Fig. 5
THREADING THE BOBBIN CASE
Step 1 (illustrated in Fig. 5) Hold bobbin case between thumb
and forefinger of left hand, so that the slot in the edge of the
bobbin case is on top. Take the bobbin between thumb and
forefinger of right hand so that the thread on top leads from left
to right. Step 2. Insert bobbin into bobbin case, pull the thread
into the slot of the bobbin case as shown in Fig. 6, and draw it
under the Tension spring and into the fork-shaped opening of the
spring as shown in Fig. 7.
PLACING BOBBIN CASE IN SHUTTLE
Open bobbin case cover plate left of the needle. (®, Fig. 1)
See Fig. 8. Hold the bobbin case latch, (T), between the thumb and
forefinger of the left hand with at least three inches of thread
Fig. 8
running from the top of the bobbin case to the right. Insert and
center the bobbin case on the stud of the shuttle hook ®. Be sure
the bobbin case finger @ is inside the shuttle race notch ®.
Press the bobbin case ® into the shuttle as far as possible until
latch catches on the center post of the shuttle. Then release the
bobbin case latch ®. Press bobbin case again after latch has been
released to make sure the bobbin case is locked securely in place.
Close the cover plate.
UPPER THREADING
Turn hand wheel toward you to raise the
take-up lever and needle to their highest position.
Place spool of thread on spool pin and lead
thread through top plate thread guided) and(D.
Down and between tension discs® from right
to left.
Up and over the tension guide® then down
under the tension spring®
Into take-up lever ® from right to left.
Down through thread bar guide ® and into
face plate guide® and needle clamp guide®.
Thread needle from left to right pulling three
to four inches of thread through needle.
Hold the end of the upper thread loosey and
turn hand wheel toward you until the needle goes
all the way down and comes back up bringing with
it the bottom or bobbin case thread.
I Place both threads
(upper and lower)
under the slot of the
Presser foot and place
toward the back of the
machine, leaving both
threads three to four
inches long.
ADJUSTING THE TENSIONS
A correct stitch can be obtained by varying the tension on the
No tension
Normol tension Tijht tension
Fig. 11
needle thread. To adjust the tension of the needle thread, Lower
the pressure foot.
Adjust the tension regulator as the case demand, by refferring
to illustration. (Fig.ll) The quality of sewing depends on the
tension of thread. Therefore, it is necessary for the user to
become fully familiar with the correct tensions through practice.
Before adjusting lower tension be sure that the machine is
threaded properly. When necessary to change the bobbin tension,
turn small screw (Fig. 12) on side of the bobbin case clockwise
to tighten, counter-clockwise to loosen.
When the upper and lower tensions are properly balanced, a
perfect stitch will be formed with both threads interlocking in
fabric (Fig. 13).
When the upper tension is too tight, the lower thread is pulled
up over the upper thread which is lying flat on the fabric (Fig.
14).
rnf
^ ....
1
r'
^ J
i
------
Fig- 13
.....
..
r __
-
(5^
_
:^\w
When the upper tension is too loose, the upper thread forms
loops over the lower thread lying flat under the fabric (Fig. 15).
^ Firr l.R
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