Janome 4052lx - Page 6

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6. NOISY 1. BACKLASH BETWEEN SEE MECHANICAL P.19
OPERATION SHUTTLE HOOK GEAR AND ADJUSTMENT “BACKLASH
LOWER SHAFT GEAR IS TOO (LOWER SHAFT GEAR).”
GREAT.
2. LOWER SHAFT GEAR IS ELIMINATE THE LOOSENESS.
LOOSE.
3. INAPPROPRIATE BELT SEE MECHANICAL P.26
TENSION. ADJUSTMENT “MOTOR
BELT TENSION.”
4. NOT ENOUGH OIL OIL ALL MOVING PARTS.
5. UPPER SHAFT IS LOOSE. ELIMINATE THE LOOSENESS.
7. DEFORMATION 1. INAPPROPRIATE FEED SEE MECHANICAL P.14
PATTERN BALANCE. ADJUSTMENT “STRETCH
STITCH BALANCE.”
2. INAPPROPRIATE ZIGZAG SEE MECHANICAL P.11
SYNCHRONIZATION. ADJUSTMENT “NEEDLE
SWING.”
3. UPPER THREAD TENSION SEE MECHANICAL P. 9
IS TOO STRONG. ADJUSTMENT “TOP TENSION.”
8. IMPROPER 1. BUTTONHOLE STITCH SEE MECHANICAL P.22
BALANCE IS NOT CORRECT. ADJUSTMENT “BUTTONHOLE
STITCH BALANCE.”
2. CHANGING TO BAR TACK SEE MECHANICAL P.24
IS TOO EARLY OR WILL NOT ADJUSTMENT “BUTTONHOLE
WORK. FUNCTION .”
CONDITION CAUSE HOW TO FIX REFERENCE
BUTTONHOLE
RESULTS