Janome 2149SX Manuel utilisateur
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
Ce manuel convient aux modèles suivants
6
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