Kenmore C877.15 User manual

KenmoreC877.15
Instruction Manual

$YibroductioYL
cted one of
to gjye youthe world's finest Your tew.tocctric
lifetime satisfaction.
This is the lafeSt typer t*
interchangeable witfi Handard parts available thjiighout theHfo
electric sewing biaihine has all the latest im'-ovementsv ^jju lijm_lfl.tw sa
equipped with areverse feeding mechanism ei.bling you to sew in reverse
direction as well as in forward direction. It |s an oscillating .shuttle and
central bobbin for, smooth performance. The m^n'ne features asnap-out race
for easy cleaning of the shuttle body, adrop-f<||l adjustment for' darning an
ving ptta'^
•is
r^,;a floating ])resser foot which sews over
bobty winder, and anumerically
automatic attachment for <
pins and heavy fabric, a s
calibrated thread tension.
You will find: illustrat ions tor .^instruci 't0 simpiifythe use of
machine We advise you to read the followin; Utges carefully to obtain the
best results from your'sevving maclijfne.
•Pkitsant Sewing

CONTENTS
Introduction
To Insert Needle
To Remove Bobbin Cas ad Bobbin f
5
JJb Wind Bobbin
Threading the Fobbials ,..
8
'irn insert Bobbin Case
8
9
10
3
5
Upper Threading
To Regulate the Pressur
Regulating Thread Tens
Regulating the Length Gtite* ••11
To Sew in Reverse t\11
12
Snap-Out Race
I12
Drop Feed !
*~"
Helpful Hints •\* ,
»
13
Oiling the Machine 114
1'15
Instructions for Usinj %i

GENERAL INSTRUCTIONS FOR THE OPERATION
OF YOUR ELECTRIC SEWING MACHINE
TO INSERT THE NEEDLE
Turn Balance Wheel towards yen until
NEEDLE BAR Fig 1(A) fe at its
highest point, then loosen the NEEDLE
CLAMP SCREW Pig 1(fil; Hold
needle with point down and insert
needle with the flat surface to the right
into the needle clamp as far as it will
go. Then tighten the Needle Clamp
Screw.
FIAT S10E
Fig. 2
Fig. 1
>VE THE BOBBIN CASE
Turn Bal.nce Wheel towards you until
needl^ ba: is at its highest point; draw the
bed slide: >pen to the left with thumb and
forefinger |of the left hand; open bobbin
case laich fend remove bobbin case. As long
as the
I
latch remains open, the bobbin will
stay in: the| bobbin casei Release latch, turn
open end [of bobbin case downwards and
bobbin.wili drop out.
5

TO WIND THE BOBBIN
C
rig. \
Loosen the BALANCE-WHEEL-})! OP-MOTION-SCREW Fig 3(A) toward you,
allowing the balance wheel to rut* free; place spool of thread on sppol pin Fig 4(A) at
the foot of the machine. Pass the.. tiread through tension-bracket Ifig. 4(B) and up to
the thread pressing lever Fig 4(Ch Wind thread from inside oul
around bobbin, which had been pa<;cd on the left end pin of the rubber ring Fig 4(D).
Be sure that the bobbin is presse 1to the end of the spindle. Press down the bobbin
and bobbin winder latch will drop down and hold the bobbin wirper-ring against the
balance wheel. Then operate the machine like by serving.
''continued on n«xt page)

The bobbin ivinder is automatically released, when sufficient thread
has been wound on the bobbin.
THREADING THE
Hold bobbin between thumb apd forefingefr (see Fig 5, 6, 7) and pull
out 2to 3" of thread. Guide thread into the cross slot in the edge of
the bobbin case. Pull thread unfeler the tension spring toward you into
the eye.

TO INSERT BOBBIN CASE
After turning the Balance "Wheel unftl
needle bar is at its highest point, insert
bobbin into the bed of the machine arid
lace it so that the center stud of the bop-
in case holder fits into the slot of the rac(e.
By inserting the bobbin case the hole must
be on top (as shown in figure 8), Press the
bobbin case gently into the bobbin case
holder, release at the same tim<fc the lafch
until the stud of the bobbin case holder
snans into the latch. At least 3to 4inches
of thread should hang freely fro-n the bob-
bin case. Close the bed slide.
UPPER THREADING
Turn Balance Wheel towards you until the.
take-up lever is raised to its highest point.
Place spool of thread on the spool pai of
the machine arm; pass thread over and
through the thread guide Fig. 10 (A) the
top corner of the face-plate, down and over v
the back to front between the tension-disc
Fig. 10 (B) up to thread guard Fig. 10 (C),
dowii into the hook of take-up Spring Fig.
10 (D) and over back to front through hole
in the end of the thread take-up-lever Fig.
10 (E) down into the eyelet of the face-
plate, Fig. 10 (F) into the lower wire-tttread
guide, Fig. 10 (G) then from left to (right
•8•

through eye of the needle Fig. 10 (H).
Draw about 2" of thread through the eye
of the needle with which to commence sew-
ing. Hold needle thread in your left hand,
turn balance wheel towards you until needle
moves up and down, and up again to its
highest point, catchiijg the bobbin thread,
which will be brought up that way through
the hole in the thread plate.
TO REGULATE THE PRESSURE
For darning and embroidering, release the
pressure by pressing down the automatic
darning lever 'A' Figure 9. Make sure the
Presser Foot is down when releasing the
pressure.
For ordinary sewing -reset the pressure
bjj pressing down on
*B' figure 9.
To increase the pres-
sure press down on
'B* Figure 9until
the desired pressure
is obtained. Ther6
should be jus't
enough pressure on
the foot to allow
the fabric to move
easily and to prevent
it from rising with
the needle.
B
Fig- 9
9J

Fig. II REGULATING THE THREAD TENSION
1%. 11 tff)
Fig. 11 fCi
TO REGULATE THE TENSION
If upper tension is too loose, under thread draws
upper thread down, thus forming'asmall knot or
loops, as shown in Fig. 11 (A). If upper tension
is too tight, under thread is drawn up as shown
in Fig. 11 (B). Fig. II (C) illustrates how the
threads lock in the center of the material when
tension is properly set.
Fig. 11 (D)
Fig. 11 (E)
V
The tension on the needle thread should be regulated on\y w>en the
pressor foot is down. Having lowered the presser foot, tinVi the
small rhumb screw (Fig. 1ID) at the front of /he tension discfc over
toward you to increase the tension. To decrease the tensionV turn
the thumb nut over from you. '
The tension on the bobbin thread is regelated by the screw (Fig. 11E) in the bobb
tension spring. To increase the tension, turn this screw over to the right. To decrease the
turn tha scrow over to the left,
Whtn tfc* tension on the b
is acorrect stitch can usu i-:e prepejrly adjusted, it Is seldom necessary
by varyimg the tension on the needle thread.

REGULATING THE
LENGTH OF THE STITGH
Tho length of the stitch is regu-
lated by the stkch-re,gulator and
thumb-screw in the slot in front of
iFig. 12 (A). Loosen the
move regulator down-
wards and the stitches will become
longer. If the regulator is moved
in the opposite direction (upwards)
the stitches become shorter. After
determining the correct position of
the regulator, re tighten the screw
imnediately so the position will
noi; be altered.
TO SEW IN REVERSE
LoAsen the screw and move ^ever
ab4ve center line, Fig. 12 (C). You
can now adjust for desired length
of
the
reverse stitch. Then tighten
screw and it will lock; the
i. *The machine now sews in
reverse.
1•