Janome 2149SX User manual

MODELS 2149SX, 2149, CJ24, 2118S, 2118, 2139S & CJ14
SERVICE MANUAL

CONTENTS
WHAT TO DO WHEN ............................................................................................ 1~3
SERVICE ACCESS
FACE COVER ...................................................................................... 4
FRONT COVER.................................................................................... 5
REAR COVER ...................................................................................... 6
MECHANICAL ADJUSTMENT
TOP TENSION ..................................................................................... 7
BOBBIN TENSION ............................................................................... 8
PRESSER BAR HEIGHT ALIGNMENT................................................ 9
NEEDLE SWING .................................................................................. 10
NEEDLE DROP .................................................................................... 11
CLEARANCE BETWEEN NEEDLE AND HOOK (NO.1)...................... 12
CLEARANCE BETWEEN NEEDLE AND HOOK (NO.2)...................... 13
FEED DOG HEIGHT ............................................................................ 14
NEEDLE BAR HEIGHT ........................................................................ 15
NEEDLE TIMING TO SHUTTLE .......................................................... 16
DISTORTED PATTERN (MODEL 2149SX, 2149, CJ24)..................... 17
BUTTONHOLE FEED BALANCE......................................................... 18
BARTACK FEED OF BUTTONHOLE (MODEL 2149SX, 2149, CJ24) 19
BARTACK FEED OF BUTTONHOLE
(MODEL 2118S, 2118, 2138S, CJ14) .................................................. 20
BUTTONHOLE FUNCTION (MODEL 2149SX, 2149, CJ24) ............... 21
DISENGAGEMENT OF CAM FOLLOWER .......................................... 22
MOTOR BELT TENSION ..................................................................... 23
WIRING .............................................................................................................. 24
OILING .............................................................................................................. 25

1
WHAT TO DO WHEN
CONDITION CAUSE HOW TO FIX REFERENCE
1. SKIPPING 1. NEEDLE IS NOT INSERTED INSERTTHE NEEDLE PROPERLY.
STITCHES PROPERLY.
2. NEEDLE IS BENT OR WORN. CHANGE THE NEEDLE.
3. INCORRECTLY THREADED RETHREAD.
4. NEEDLE OR THREAD ARE USE THE RECOMMENDED
INAPPROPRIATE FOR SEWING NEEDLE AND THREAD.
FABRIC BEING SEWN.
5. SEWING ON STRETCH USE A #11 BLUE TIP NEEDLE.
FABRIC
6. INAPPROPRIATE NEEDLE SEE MECHANICAL P.15
BAR HEIGHT ADJUSTMENT
“NEEDLE BAR HEIGHT”.
7. INAPPROPRIATE NEEDLE SEE MECHANICAL P.16
TO HOOK TIMING ADJUSTMENT “NEEDLE
TIMING TO SHUTTLE”.
8. INAPPROPRIATE NEEDLE SEE MECHANICAL P.12,13
TO HOOK CLEARANCE ADJUSTMENT “CLEARANCE
BETWEEN NEEDLE AND
HOOK”.
2. FABRIC NOT 1. INCORRECT F.D. HEIGHT SEE MECHANICAL P.14
MOVING ADJUSTMENT “FEED DOG
HEIGHT”.
2. THREAD ON BOTTOM SIDE MAKE SURE TO BRING
OF FABRIC IS JAMMED UP. BOTH NEEDLE AND BOBBIN
THREAD UNDER THE FOOT
WHEN STARTING SEWING.
3. FEED DOG TEETH ARE CHANGE THE FEED DOG.
WORN.

2
CONDITION CAUSE HOW TO FIX REFERENCE
3. BREAKING 1. INITIAL SEWING SPEED IS START WITH MEDIUM SPEED.
UPPER TOO FAST.
THREAD 2. THREAD PATH IS USE THE PROPER THREAD
INCORRECT. PATH.
3. NEEDLE IS BENT OR DULL. REPLACE WITH A NEW NEEDLE.
4. UPPER THREAD TENSION IS ADJUST UPPER THREAD P.7
TOO STRONG. TENSION CORRECTLY.
5. NEEDLE SIZE IS USE APPROPRIATE NEEDLE
INAPPROPRIATE FOR AND THREAD FOR FABRIC
FABRIC. IN USE.
6. NEEDLE EYE IS WORN. CHANGE THE NEEDLE.
7. NEEDLE HOLE IN NEEDLE REPAIR THE HOLE OR
PLATE IS WORN OR BURRED. REPLACE THE NEEDLE PLATE.
4. BREAKING 1. INCORRECTLY THREADED THREAD BOBBIN CASE
BOBBIN BOBBIN CASE. CORRECTLY.
THREAD 2. TOO MUCH THREAD IS ADJUST THE POSITION OF
AROUND ON THE BOBBIN. STOPPER.
3. LINT IS STUCK INSIDE THE CLEAN THE HOOK RACE.
BOBBIN HOLDER.
4. THREAD QUALITY IS CHANGE TO A HIGH QUALITY
TOO LOW. SEWING THREAD.
5. THREAD IS JAMMING CLEAR OUT THE JAMMING
AROUND THE BOBBIN. THREAD.
6. BOBBIN THREAD TENSION IS ADJUST BOBBIN THREAD P.8
TOO STRONG. TENSION CORRECTLY.
5. NEEDLE 1. NEEDLE IS HITTING THE SEE MECHANICAL P.11
BREAKS NEEDLE PLATE. ADJUSTMENT “NEEDLE DROP.”
2. NEEDLE IS BENT OR WORN. CHANGE THE NEEDLE.
3. NEEDLE IS HITTING THE SEE MECHANICAL P.12,13
HOOK RACE. ADJUSTMENT “CLEARANCE
BETWEEN NEEDLE AND HOOK”.
4. THE FABRIC MOVES WHILE SEE MECHANICAL P.10
THE NEEDLE IS PIERCING ADJUSTMENT “NEEDLE SWING”.
IT, OR THE NEEDLE ZIGZAGS
WHILE IN FABRIC.
5. FABRIC IS BEING PULLED TOO GUIDE THE FABRIC GENTLY
STRONGLY WHILE SEWING. WHILE SEWING.

3
CONDITION CAUSE HOW TO FIX REFERENCE
6. NOISY 1. BACKLASH BETWEEN SEE MECHANICAL P.13
OPERATION SHUTTLE HOOK GEAR AND ADJUSTMENT “CLEARANCE
LOWER SHAFT GEAR IS TOO BETWEEN NEEDLE AND HOOK
GREAT. (NO.2)”.
2. LOWER SHAFT GEAR IS ELIMINATE THE LOOSENESS.
LOOSE.
3. INAPPROPRIATE BELT SEE MECHANICAL P.23
TENSION. ADJUSTMENT “MOTOR BELT
TENSION”.
4. UPPERSHAFT GEAR ISLOOSE. ELIMINATE THE LOOSENESS.
5. NOT ENOUGH OIL. OIL ALL MOVING PARTS.
7. DEFORMATION 1. INAPPROPRIATE ZIGZAG SEE MECHANICAL P.10
PATTERN SYNCHRONIZATION. ADJUSTMENT “NEEDLE
SWING”.
2. INAPPROPRIATE SEE MECHANICAL P.22
DISENGAGEMENT OF CAM ADJUSTMENT
FOLLOWER. “DISENGAGEMENT OF CAM
FOLLOWER”.
3. UPPER THREAD TENSION ADJUST UPPER THREAD P.7
IS TOO STRONG. TENSION CORRECTLY.
4. INAPPROPRIATE FEED SEE MECHANICAL P.17
BALANCE. ADJUSTMENT “DISTORTED
PATTERN ”.

4
SERVICE ACCESS
FACE COVER
1. REMOVE THE FACE COVER BY REMOVING THE SETSCREW (A).
(A)
CAP

5
SERVICE ACCESS
FRONT COVER
TO REMOVE
1. LOOSEN THE SET SCREWS (A), (B),AND (C), AND THEN, REMOVE THE FRONT COVER
BY REMOVING THE SET SCREWS (D) ,(E),(F),(G),(H),(I)AND (J).
NOTE: UNHOOK THE TAB (L) FROM THE REAR COVER WHEN REMOVING THE
FRONT COVER.
TO ATTACH
2. FOLLOW THE ABOVE PROCEDURE IN REVERSE.
D
A
E G
B
F
H
L
C
I
J
CAP
FRONT COVER

6
SERVICE ACCESS
REAR COVER
TO REMOVE
1. REMOVE THE FACE COVER AND FRONT COVER. (SEE PAGE 8, 9)
2. LOOSEN THE SETSCREWS (A), (B) AND (C), AND REMOVE SETSCREWS (D), (E) AND
(F).
3. PULL UP THE SPOOL PINS. REMOVE THE MACHINE SOCKET. REMOVE THE REAR
COVER CLEARING THE PRESSER FOOT LIFTER FROM THE SLIT ON THE COVER.
TO ATTACH
4. FOLLOW THE ABOVE PROCEDURE IN REVRSE.
A
B
C
F
REAR COVER
D
E

7
MECHANICAL ADJUSTMENT
TOP TENSION
TO CHECK:
THE STANDARD UPPER THREAD TENSION SHOULD BE 65 - 95g WHEN PULLING THE
THREAD (COTTON THREAD #50) IN THE DIRECTION OF (B) WITH SETTING THE TENSION
DIAL AT “3”. (MAKE SURE THE FOOT SHOULD BE LOWERED.)
IF THE TENSION IS OUT OF THE STANDARD RANGE, ADJUST IT AS FOLLOWS:
ADJUSTMENT PROCEDURE:
1. REMOVE THE FRONT COVER UNIT. (SEE PAGE 9.)
2. TURN THE ADJUSTING NUT (C) IN THE DIRECTION OF (D) WHEN THE UPPER THREAD
TENSION IS TOO TIGHT.
TURN THE ADJUSTING NUT (C) IN THE DIRECTION OF (E) WHEN THE UPPER THREAD
TENSION IS TOO LOOSE.
3. ATTACH THE FRONT COVER UNIT.
C
E
D
B

8
MECHANICAL ADJUSTMENT
BOBBIN TENSION
TO CHECK:
SET THE BOBBIN IN THE BOBBIN CASE AND PASS THE THREAD (COTTON #50) THROUGH
THE TENSION SPRING.
THE BOBBIN THREAD TENSION SHOULD BE 45 - 55g WHEN PULLING THE THREAD IN THE
DIRECTION OF (B).
IF THE TENSION IS OUT OF THE RANGE, ADJUST IT AS FOLLOWS:
ADJUSTMENT PROCEDURE:
1. TURN THE ADJUSTING SCREW (C) IN THE DIRECTION OF (D) WHEN THE BOBBIN
THREAD TENSION IS TOO TIGHT.
2. TURN THE ADJUSTING SCREW (C) IN THE DIRECTION OF (E) WHEN THE BOBBIN
THREAD TENSION IS TOO LOOSE.
(B)
(E)
(D)
(C)
COTTON THREAD #50

9
MECHANICAL ADJUSTMENT
PRESSER BAR HEIGHT AND ALIGNMENT
TO CHECK:
1. RAISE THE PRESSER FOOT LEVER (A).
2. THE DISTANCE BETWEEN THE PRESSER FOOT (D) AND THE NEEDLE PLATE (E)
SHOULD BE 6.0MM (0.24").
ADJUSTMENT PROCEDURE:
1. REMOVE THE FACE PLATE. (SEE PAGE 4.)
2. REMOVE THE SCREW (B) AND TAKE THE LAMP SOCKET OFF.
3. RAISE THE PRESSER FOOT LEVER AND LOOSEN THE SCREW (C) ON THE PRESSER
BAR HOLDER.
ADJUST THE DISTANCE BETWEEN THE PRESSER FOOT (D) AND THE NEEDLE PLATE
(E) TO 6.0MM (0.24").
4. TIGHTEN THE SCREW (C) SECURELY.
5. TIGHTEN THE SCREW (B) TO SECURE THE LAMP SOCKET.
6. ATTACH THE FACE PLATE.
NOTE: WHEN YOU TIGHTEN THE SCREW (B), MAKE SURE THAT BOTH SIDES OF THE
PRESSER FOOT ARE PARALLEL TO THE FEED DOG SLOTS (F) ON THE
NEEDLE PLATE.
(A)
(B)
(C)
(D)
(E)
(F)
6.0MM

10
MECHANICAL ADJUSTMENT
NEEDLE SWING
TO CHECK:
ADJUST THE NEEDLE SWING ACCORDING TO THE FOLLOWING PROCEDURE, IF THE
NEEDLE BAR STARTS MOVING SIDEWAYS WHILE THE NEEDLE IS IN THE FABRIC AT
SEWING THE ZIGZAG PATTERN (WITH MAXIMUM ZIGZAG WIDTH).
ADJUSTMENT PROCEDURE:
1. SET THE PATTERN SELECTOR DIAL WITH MAXIMUM ZIGZAG WIDTH, AND REMOVE
THE FRONT COVER. (SEE PAGE 5.)
2. LOOSEN TWO SET SCREWS.
3. ADJUST THE NEEDLE SWING BY TURNING THE HANDWHEEL, WHILE HOLDING THE
WORM SO AS NOT TO ROTATE IT, UNTIL THE NEEDLE SWING STARTS AT 2 - 3MM
ON THE NEEDLE PLATE AFTER THE NEEDLE HAS COME OUT OF THE RIGHT SIDE
OF THE NEEDLE HOLE.
4. TIGHTEN TWO SET SCREWS.
5. MOUNT THE FRONT COVER.
NOTE: AFTER ADJUSTING THE NEEDLE SWING, CHECK THAT THE UPPER SHAFT
WORM AND GEAR ROTATE SMOOTHLY WITHOUT ANY BACKLASH BETWEEN
THEM.
UPPER SHAFT WORM
GEAR
SET SCREW
(2 PCS.)
2–3 MM

11
MECHANICAL ADJUSTMENT
NEEDLE DROP
TO CHECK:
WHEN THE NEEDLE SWINGS IN MAXIMUM ZIGZAG WIDTH, THE DISTANCE BETWEEN THE
BOTH
ENDS OF NEEDLE HOLE ON THE NEEDLE PLATE AND THE NEEDLE DROP POSITIONS
SHOULD BE EQUAL.
IF NOT, MAKE AN ADJUSTMENT AS FOLLOWS:
ADJUSTMENT PROCEDURE:
1. REMOVE THE FACE COVER. (SEE PAGE 4.)
2. SET THE PATTERN SELECTOR DIAL AT MAXIMUM ZIGZAG WIDTH.
3. LOOSEN THE SET SCREW.
4. TURN THE ECCENTRIC PIN TO ADJUST THE NEEDLE DROP.
5. TIGHTEN THE SET SCREW.
NOTE: CHECK THE HOOK TIMING AFTER THIS ADJUSTMENT.
6. ATTACH THE FACE COVER.
ECCENTRIC PIN
SET SCREW
BOTH CLEARANCE SHOULD BE EQUAL

12
MECHANICAL ADJUSTMENT
CLEARANCE BETWEEN NEEDLE AND HOOK (NO.1)
TO CHECK:
THE CLEARANCE BETWEEN NEEDLE AND SHUTTLE RACE SHOULD BE –0.05 –+0.10MM.
IF NOT, MAKE AN ADJUSTMENT AS FOLLOWS:
ADJUSTMENT PROCEDURE:
1. REMOVE THE FACE COVER. (SEE PAGE 4.)
2. SET THE PATTERN SELECT DIAL " ".
MODEL 2149SX, 2149, CJ24 PATTERN SELECT DIAL " ", WIDTHSELECTORCONTROL
AT"0".
3. LOOSEN SET SCREW (A), AND MOVE THE NEEDLE BAR SUPPORTER TO ARROWS
TO GET CLEARANCE BETWEEN –0.05 TO +0.10MM.
* WHEN CLEARANCE IS TOO WIDE, MOVE THE NEEDLE BAR SUPPORTER TO
DIRECTION (B).
* WHEN CLEARANCE IS TOO NARROW, MOVE THE NEEDLE BAR SUPPORTER TO
DIRECTION (C).
NOTE: AFTER THIS ADJUSTMENT, CHECK IF THE CLEARANCE BETWEEN NEEDLE
AND NEEDLE PLATE IS MORE THAN 0.15MM AS SHOWN IN FIGURE (D).
IF NOT, ADJUST THE CLEARANCE BETWEEN NEEDLE AND SHUTTLE RACE
BY USING METHOD OF ADJUSTMENT NO.2 IN PAGE 13 AFTER READJUST THE
CLEARANCE BETWEEN NEEDLE AND NEEDLE PLATE MORE THAN 0.15MM.
4. ATTACH THE FACE COVER.
SET SCREW A DIRECTION C
DIRECTION B
NEEDLE BAR SUPPORTER
–0.05-+0.10MM
FIGURE D
CLEARANCE BETWEEN NEEDLE AND
NEEDLE PLATE IS MORE THAN
0.15MM

13
MECHANICAL ADJUSTMENT
CLEARANCE BETWEEN NEEDLE AND HOOK (NO.2)
TO CHECK:
USE THIS ADJUSTMENT NO.2 WHEN ADJUSTMENT NO.1 CAN NOT BE USED.
THE CLEARANCE BETWEEN NEEDLE AND SHUTTLE RACE SHOULD BE –0.05 - +0.10mm.
ADJUSTMENT PROCEDURE:
1. SET THE PATTERN SELECTOR DIAL AT “ ”.
MODEL 2149SX, 2149, CJ24 PATTERN SELECT DIAL " ",WIDTHSELECTORCONTROL
AT"0".
2. REMOVE THE REAR COVER. (SEE PAGE 6.)
3. LOOSEN THE SCREW (A) ON LOWER SHAFT BUSHING AND SLIDE THE GEAR ABOUT
0.5MM TO THE RIGHT TO MAKE A SLACK BETWEEN GEARS.
4. LOWER THE NEEDLE AND LOOSEN THE TWO SHUTTLE RACE SET SCREWS (B).
MOVE THE SHUTTLE RACE UNIT AXIALLY EITHER FORWARD OR BACKWARD TO
ADJUST THE CLEARANCE BETWEEN THE NEEDLE AND THE SHUTTLE RACE IN THE
RANGE OF –0.05 – +0.10MM.
5. SET THE PATTERN SELECT DIAL AT “ ”, TURN THE BALANCE WHEEL TO CHECK
IF THE CLEARANCE BETWEEN THE NEEDLE AND INNER EDGES OF THE SHUTTLE
RACE SPRING AT THE LEFT AND RIGHT NEEDLE DROPS ARE EQUAL.
IF NOT, MAKE AN ADJUSTMENT BY TURNING THE SHUTTLE RACE UNIT.
6. TIGHTEN THE TWO SHUTTLE RACE SET SCREWS (B).
7. LOOSEN THE SET SCREW ON LOWER SHAFT BUSHING AND SLIDE THE GEAR BACK
TO THE ORIGINAL POSITION WHILE ADJUSTING THE BACKLASH.
8. TIGHTEN THE SCREW (A) FIRMLY.
9. ATTACH THE REAR COVER.
NOTE: THE BACKLASH PLAY SHOULD BE LESS THAN 0.3MM AND LOWER SHAFT
TURNS SMOOTHLY.
AFTER THE ADJUSTMENT, CHECK THE HOOK TIMING.
SET SCREW A
–0.05-+0.10MM
CLEARANCE SHOULD BE EQUAL
SHUTTLE RACE
SET SCREW B (2 PCS.) LOWER SHAFT
BUSHING (FRONT)
NEEDLE
SHUTTLE RACE SPRING

14
MECHANICAL ADJUSTMENT
FEED DOG HEIGHT
TO CHECK:
1. LOWER THE PRESSER FOOT.
2. TURN THE HANDWHEEL TOWARD YOU UNTIL THE NEEDLE BAR COMES TO THE
FEED DOG ABOVE THE NEEDLE PLATE SHOULD BE 0.75–0.90 MM.
IF IT IS NOT IN THE RANGE, ADJUST AS FOLLOWS.
ADJUSTMENT PROCEDURE:
1. OPEN THE SHUTTLE COVER.
2. LOWER THE PRESSER FOOT AND TURN THE HANDWHEEL TOWARD YOU UNTIL
THE FEED DOG COMES TO ITS HIGHEST POINT.
3. LOOSEN THE SCREW (A) .
4. TURN THE FEED LIFTING PIN TO ADJUST THE HEIGHT OF FEED DOG (0.75–0.90 MM).
5. TIGHTEN THE SCREW (A).
6. TURN THE HANDWHEEL TOWARD YOU TO RECHECK THE HEIGHT OF FEED DOG.
FEED LIFTING PIN
0.75–0.90 MM
NEEDLE PLATE
(A)

15
MECHANICAL ADJUSTMENT
NEEDLE BAR HEIGHT
TO CHECK:
WHEN THE TIP OF SHUTTLE HOOK MEETS THE LEFT SIDE OF THE NEEDLE IN
ASCENDING TRAVEL OF THE NEEDLE FROM ITS LEFT AND LOWEST POSITION,
THE DISTANCE BETWEEN THE TOP OF THE NEEDLE EYE AND THE TIP OF THE
SHUTTLE HOOK SHOULD BE IN THE RANGE OF 2.9-3.5 MM.
ADJUSTMENT PROCEDURE:
1. OPEN THE FACE COVER.
2. SET THE PATTERN SELECTOR DIAL AT " ".
MODEL 2149SX, 2149, CJ24 PATTERN SELECT DIAL " ",WIDTHSELECTORCONTROL
AT"0".
3. OPEN THE SHUTTLE COVER.
4. REMOVE THE SHUTTLE RACE RING.
5. TURN THE HANDWHEEL TOWARD YOU UNTIL THE TIP OF THE SHUTTLE HOOK
MEETS THE LEFT SIDE OF THE NEEDLE.
6. LOOSEN THE LOWER SHAFT CRANK ARM SCREW (A).
7. ADJUST THE HEIGHT OF THE NEEDLE BAR BY MOVING THE NEEDLE BAR UPWARD
OR DOWNWARD WITHOUT TURNING IT.
8. TIGHTEN THE SCREW (A).
9. ATTACH THE SHUTTLE RACE RING.
SCREW (A)
NEEDLE BAR
TIP OF SHUTTLE HOOK MEETS
LEFT SIDE OF NEEDLE
2.9–3.5 MM

16
MECHANICAL ADJUSTMENT
NEEDLE TIMING TO SHUTTLE
TO CHECK:
THE HEIGHT OF THE NEEDLE POINT FROM ITS LOWEST POINT OF TRAVEL
SHOULD BE IN THE RANGE OF 1.45-1.95 MM WHEN THE TIP OF THE SHUTTLE
HOOK JUST MEETS THE LEFT SIDE OF THE NEEDLE AT THE LEFT NEEDLE POSITION.
ADJUSTMENT PROCEDURE:
1. SET THE PATTERN SELECTOR DIAL AT “ ”.
MODEL 2149SX, 2149, CJ24 PATTERN SELECT DIAL " ",WIDTHSELECTORCONTROL
AT"0".
2. REMOVE THE FRONY COVER (SEE PAGE 5).
3. OPEN THE SHUTTLE COVER.
4. REMOVE THE SHUTTLE RACE RING.
5. TURN THE HANDWHEEL TOWARD YOU UNTIL THE TIP OF THE SHUTTLE HOOK
MEETS THE LEFT SIDE OF THE NEEDLE.
6. LOOSEN THE LOWER SHAFT CRANK ARM SCREWS (A).
7. WHILE HOLDING THE SHUTTLE HOOK SO IT DOESN'T TURN, TURN THE
HANDWHEEL TOWARD YOU UNTIL THE NEEDLE COMES TO ITS LOWEST
POSITION.
THEN, FURTHER TURN THE HANDWHEEL TO RAISE THE NEEDLE ABOUT 1.7 MM
FROM ITS LOWEST POSITION.
8. TIGHTEN THE SCREWS (A).
9. TURN THE HANDWHEEL TOWARD YOU TO CHECK IF THE HEIGHT IS IN THE RANGE
OF 1.45-1.95 MM.
IF IT IS NOT IN THIS RANGE, REPEAT THE ABOVE PROCEDURE.
10. ATTACH THE SHUTTLE RACE RING.
11. ATTACH THE FRONT COVER.
LOWER SHAFT CRANK ARM
SCREWS (A) (2)
1.45–1.95 MM
LOWEST POSITION
LOWER SHAFT

17
MECHANICAL ADJUSTMENT
DISTORTED PATTERN (MODEL 2149SX, 2149, CJ24)
TO CHECK:
IF THE STRETCH STITCH PATTERNS ARE DISTORTED WITH SETTING THE STITCH
LENGTH CONTROL AT “ S.S. ”.
(IN CASE OF BEING A DIFFERENCE BETWEEN FORWARD FEEDING AND BACKWARD
FEEDING DURING STRETCH STITCH PATTERNS), MAKE AN ADJUSTMENT AS FOLLOWS:
ADJUSTMENT PROCEDURE:
1. REMOVE THE CAP.
2. SET THE PATTERN SELECTOR CONTROL AT “ ”, AND THE STITCH LENGTH
CONTROL AT “ S.S. ”.
3. TURN THE STRETCH STITCH ADJUSTING SCREW IN THE DIRECTION OF (C)
WHEN A > B, OR IN THE DIRECTION OF (D) WHEN A < B.
4. MOUNT THE CAP.
(C) (D) CAP
NOTCH
STRECH STITCH
ADJUSTING SCREW

18
MECHANICAL ADJUSTMENT
BUTTONHOLE FEED BALANCE
TO CHECK:
WHEN SEWING BUTTONHOLE, THE STITCHES ON EACH SIDE OF BUTTONHOLE
SHOULD BE THE SAME STITCH DENSITY.
THE RANGE OF 9-12 STITCHES IN THE RIGHT SIDE ROW “BACKWARD FEEDING”
AGAINST 10 STITCHES IN THE LEFT SIDE ROW “FORWARD FEEDING” IS CONSIDERED
ACCEPTABLE.
ADJUSTMENT PROCEDURE:
1. CONFIRM THE STITCHES BY SEWING BUTTONHOLES, AND REMOVE THE CAP.
2. TURN THE ADJUSTING SCREW IN THE DIRECTION OF (C) IN CASE OF (A) (RIGHT
STITCHES ARE ROUGH), OR IN THE DIRECTION OF (D) IN CASE OF (B) (LEFT
STITCHES ARE ROUGH).
3. MOUNT THE CAP.
AB
F ORWARD FEEDING BACKWARD FEEDING
ADJUSTING SCREW
NOTCH
CAP
(D) (C)