ELNA eXperience 620 Service Manual page 4

CONDITION
3. BREAKING 1. INITIAL SEWING SPEED IS
UPPER TOO FAST.
THREAD
2. THREAD PATH IS INCORRECT.
3. NEEDLE IS BENT OR DULL.
4. UPPER THREAD TENSION IS
TOO STRONG.
5. NEEDLE SIZE IS
INAPPROPRIATE FOR FABRIC.
6. NEEDLE EYE IS WORN.
7. NEEDLE HOLE IN NEEDLE
PLATE IS WORN OR BURRED.
4. BREAKING 1. INCORRECTLY THREADED
BOBBIN BOBBIN.
THREAD
2. TOO MUCH THREAD IS
AROUND ON THE BOBBIN.
3. LINT IS STUCK INSIDE THE
BOBBIN HOLDER.
4. THREAD QUALITY IS
TOO LOW.
5. THREAD IS JAMMING
AROUND THE BOBBIN.
5. NEEDLE 1. NEEDLE IS HITTING THE
BREAKS NEEDLE PLATE.
2. NEEDLE IS BENT OR WORN.
3. NEEDLE IS HITTING THE
HOOK.
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.
CAUSE HOW TO FIX
START WITH MEDIUM SPEED.
USE THE PROPER THREAD PATH.
REPLACE WITH A NEW NEEDLE.
ADJUST NEEDLE THREAD TENSION
CORRECTLY.
USE APPROPRIATE NEEDLE FOR
FABRIC AND THREAD IN USE.
CHANGE THE NEEDLE.
REPAIR THE HOLE OR REPLACE
THE NEEDLE PLATE.
THREAD BOBBIN CORRECTLY.
ADJUST THE POSITION OF STOPPER.
CLEAN THE SHUTTLE.
CHANGE TO A HIGH QUALITY
SEWING THREAD.
CLEAR OUT THE JAMMING THREAD.
SEE MECHANICAL
ADJUSTMENT "NEEDLE POSITION".
CHANGE THE NEEDLE.
SEE MECHANICAL ADJUSTMENT
"CLEARANCE BETWEEN NEEDLE
AND HOOK".
SEE MECHANICAL ADJUSTMENT
"ZIGZAG SYNCHRONIZATION".
GUIDE THE FABRIC GENTLY
WHILE SEWING.
2
MODEL: eXperience 620
REFERENCE
P. 18
P. 11
P. 14
P. 17