SPECIAL TOOLS REQUIRED...................................................................................... 30
VI .0
SEWING MACHINE DIV. 20MODEL 384. 15358
LOCATE AND IDENTIFY THE PARTS
BOBBIN WINDING TENSION DISC
SPOOL PINS
SEWING machíne DIV. 20MODEL 384. 15358
WIND THE BOBBIN
1.
PULL THE HANDWHEEL OUT.
2.
DRAW THREAD FROM THE SPOOL. GUIDE THE THREAD AROUND THE THREAD
GUIDE. THREAD THROUGH THE BOBBIN WINDER TENSION DISK "A" AND THE
HOLE IN THE BOBBIN FROM THE INSIDE TO THE OUTSIDE.
3.
PLACE BOBBIN ONTO BOBBIN WINDING SPINDLE "B" WITH END OF THREAD
COMING FROM THE TOP OF THE BOBBIN.
PUSH BOBBIN WINDING SPINDLE TO THE RIGHT UNTIL IT CLICKS.
HOLDING THE END OF THREAD, START MACHINE. WHEN BOBBIN IS SLIGHTLY
FILLED, SNIP OFF THE END OF THREAD.
5.
WIND THREAD UNTIL BOBBIN STOPS. REMOVE BOBBIN.
6.
PUSH THE HANDWHEEL TO THE LEFT.
B
PLACE BOBBIN IN BOBBIN CASE
MAKING SURE THREAD FEEDS
CLOCKWISE AND IS COMING
FROM BOBBIN AS SHOWN.
4 HOLDING LATCH OPEN, POSITION
CASE INTO SHUTTLE AND
RELEASE LATCH.
2 PULL THREAD THROUGH
SLIT OF CASE AS SHOWN.
CASE SHOULD LOCK INTO PLACE
WHEN LATCH IS RELEASED.
PULL THREAD UNDER TENSION
SPRING AND THROUGH THE
OPENING AS SHOWN ABOVE.
SEWING machíne DIV. 20MODEL 384. 15358
PREPARE YOUR TOP THREAD
FOR THREADING THE MACHINE, FOLLOW THE NUMBERS IN ORDER AS SHOWN
ON THE ILLUSTRATION.
DOTTED LINES SHOW THE PLACES WHERE THE THREAD LOOPS AND THEN
IS PULLED TIGHT.
RAISE THE PRESSER FOOT LEVER.
PLACE A SPOOL ON THE SPOOL PIN, WITH THREAD COMING OFF AS SHOWN.
1. DRAW THREAD THROUGH THE THREAD GUIDE.
2. HOLDING THREAD TAUT WITH RIGHT HAND, DRAW THREAD DOWN INTO THE
TENSION AREA AND THEN AROUND THE CHECK SPRING HOLDER.
3. FIRMLY DRAW THREAD UP AND THROUGH THE TAKE-UP LEVER FROM RIGHT
TO LEFT.
4. DRAW THREAD DOWN AGAIN AND SLIP IT INTO THE NEEDLE BAR THREAD
GUIDE.
5. TREAD NEEDLE FROM FRONT TO BACK.
NOTE; YOU MAY WANT TO CUT THE END OF THREAD WITH SHARP SCISSORS
FOR EASIER NEEDLE THREADING.
SEWING machíne DIV. 20MODEL 384. 15358
WHAT TO DO WHEN
CONDITIONCAUSEHOW TO FIXREFERENCE
1. SKIPPING
STITCHES
1. NEEDLE IS NOT INSERTED
PROPERLY.
2. NEEDLE IS BENT OR WORN.CHANGE THE NEEDLE.
3. INCORRECTLY THREADEDRETHREAD.
4. NEEDLE OR THREAD ARE
INAPPROPRIATE FOR
FABRIC BEING SEWN.
5. SEWING ON STRETCH
FABRIC
6. INAPPROPRIATE NEEDLE
BAR HEIGHT
7. INAPPROPRIATE NEEDLE
TO HOOK TIMING
8. INAPPROPRIATE NEEDLE
TO HOOK CLEARANCE
INSERT THE NEEDLE PROPERLY.
USE THE RECOMMENDED
SEWING NEEDLE AND THREAD.
USE A #11 BLUE TIP NEEDLE.
SEE MECHANICAL
ADJUSTMENT
“NEEDLE BAR HEIGHT.”
SEE MECHANICAL
ADJUSTMENT“NEEDLE
TIMING TO SHUTTLE.”
SEE MECHANICAL
ADJUSTMENT“CLEARANCE
BETWEEN NEEDLE AND
HOOK.”
P.19
P.20
P.16,17
2. FABRIC NOT
MOVING
1. INCORRECT
FEED DOG HEIGHT
2. THREAD ON BOTTOM SIDE
OF FABRIC IS JAMMED UP.
3. FEED DOG TEETH ARE
WORN.
SEE MECHANICAL
ADJUSTMENT “FEED DOG
HEIGHT.”
MAKE SURE TO BRING
BOTH NEEDLE AND BOBBIN
THREADS UNDER THE FOOT
WHEN STARTING SEWING.
CHANGE THE FEED DOG.
P.18
SEWING machíne DIV. 20MODEL 384. 15358
CONDITIONCAUSEHOW TO FIXREFERENCE
3. BREAKING
UPPER
THREAD
4. BREAKING
BOBBIN
THREAD
1. INITIAL SEWING SPEED IS
TOO FAST.
2. THREAD PATH IS
INCORRECT.
3. NEEDLE IS BENT OR DULL.REPLACE WITH A NEW NEEDLE.
4. UPPER THREAD TENSION IS
TOO STRONG.
5. NEEDLE SIZE IS
INAPPROPRIATE FOR
FABRIC.
6. NEEDLE EYE IS WORN.CHANGE THE NEEDLE.
7. NEEDLE HOLE IN NEEDLE
PLATE IS WORN OR BURRED.
1. INCORRECTLY THREADED
BOBBIN CASE.
2. TOO MUCH THREAD IS
WOUND ON THE BOBBIN.
3. LINT IS STUCK INSIDE THE
HOOK RACE.
START WITH MEDIUM SPEED.
USE THE PROPER THREAD
PATH.
ADJUST UPPER THREAD
TENSION CORRECTLY.
USE APPROPRIATE NEEDLE
AND THREAD FOR FABRIC
IN USE.
REPAIR THE HOLE OR
REPLACE THE NEEDLE PLATE.
THREAD BOBBIN CASE
CORRECTLY.
ADJUST THE POSITION OF
STOPPER.
CLEAN THE HOOK RACE.
P.11
5. NEEDLE
BREAKS
4. THREAD QUALITY IS
TOO LOW.
5. THREAD IS JAMMING
AROUND THE BOBBIN.
6. BOBBIN THREAD TENSION IS
TOO STRONG.
1. NEEDLE IS HITTING THE
NEEDLE PLATE.
2. NEEDLE IS BENT OR WORN.CHANGE THE NEEDLE.
3. NEEDLE IS HITTING THE
HOOK RACE.
4. THE FABRIC MOVES WHILE
THE NEEDLE IS PIERCING
IT, OR THE NEEDLE ZIGZAGS
WHILE IN FABRIC.
5. FABRIC IS BEING PULLED TOO
STRONGLY WHILE SEWING.
CHANGE TO A HIGH QUALITY
SEWING THREAD.
CLEAR OUT THE JAMMING
THREAD.
ADJUST BOBBIN THREAD
TENSION CORRECTLY.
SEE MECHANICAL
ADJUSTMENT “NEEDLE DROP.”
SEE MECHANICAL
ADJUSTMENT “CLEARANCE
BETWEEN NEEDLE AND HOOK”.
SEE MECHANICAL
ADJUSTMENT “NEEDLE SWING”.
GUIDE THE FABRIC GENTLY
WHILE SEWING.
P.12
P.15
P.16, 17
P.14
SEWING machíne DIV. 20MODEL 384. 15358
CONDITIONCAUSEHOW TO FIXREFERENCE
6. NOISY
OPERATION
7. DEFORMATION
PATTERN
1. BACKLASH BETWEEN
SHUTTLE HOOK GEAR AND
LOWER SHAFT GEAR IS TOO
GREAT.
2. LOWER SHAFT GEAR IS
LOOSE.
3. INAPPROPRIATE BELT
TENSION.
4. UPPER SHAFT GEAR IS LOOSE.
5. NOT ENOUGH OIL.OIL ALL MOVING PARTS.
1. INAPPROPRIATE ZIGZAG
SYNCHRONIZATION.
2. INAPPROPRIATE
DISENGAGEMENT OF CAM
FOLLOWER.
SEE MECHANICAL
ADJUSTMENT "CLEARANCE
BETWEEN NEEDLE AND HOOK
(N0.2)”.
ELIMINATE THE LOOSENESS.
SEE MECHANICAL
ADJUSTMENT “MOTOR BELT
TENSION”.
ELIMINATE THE LOOSENESS.
SEE MECHANICAL
ADJUSTMENT“NEEDLE
SWING”.
SEE MECHANICAL
ADJUSTM
“DISENGAGEMENT OF CAM
FOLLOWER”.
P.17
P.26
P.14
P.24
3. UPPER THREAD TENSION
IS TOO STRONG.
ADJUST UPPER THREAD
TENSION CORRECTLY.
P.11
SEWING machíne DIV. 20MODEL 384. 15358
SERVICE ACCESS
FACE COVER
TO REMOVE:
1. REMOVE THE FACE COVER BY REMOVING THE CAP (A) AND SETSCREW (B)
TO ATTACH:
2. FOLLOW THE ABOVE PROCEDURE IN REVERSE.
BELT COVER
TO REMOVE:
1. LOOSEN SETSCREW (C).
2. TAKE THE BELT COVER OUT.
TO ATTACH:
3. FOLLOW THE ABOVE PROCEDURE IN REVERSE.
SEWING machíne DIV. 20MODEL 384. 15358
SERVICE ACCESS
BASE PLATE
TO REMOVE:
1. LOOSEN THE SETSCREWS (A).
2. REMOVE THE BASE PLATE.
TO ATTACH:
3. MOUNT THE BASE PLATE AND SECURE !T WITH FOUR SETSCREWS.
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