Janome MS5027PR, Service Manual

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4
MS5027PR
CONDITION CAUSE HOW TO FIX REFERENCE
6. NOISY 1. BACKLASH BETWEEN SEE MECHANICAL P.25
OPERATION HOOK GEAR AND LOWER ADJUSTMENT “BACKLASH
SHAFT GEAR IS TOO (LOWER SHAFT GEAR).”
GREAT.
2. LOWER SHAFT GEAR IS ELIMINATE THE LOOSENESS.
LOOSE.
3. INAPPROPRIATE BELT SEE MECHANICAL P.36
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.19, 20
PATTERN BALANCE. ADJUSTMENT “STRETCH
STITCH BALANCE.”
2. INAPPROPRIATE ZIGZAG SEE MECHANICAL P.14
SYNCHRONIZATION. ADJUSTMENT “NEEDLE
SWING.”
3. UPPER THREAD TENSION SEE MECHANICAL
IS TOO STRONG. ADJUSTMENT “TOP TENSION.”
8. IMPROPER 1. BUTTONHOLE STITCH SEE MECHANICAL P.26, 27
BUTTONHOLE BALANCE IS NOT CORRECT. ADJUSTMENT “BUTTONHOLE
RESULTS STITCH BALANCE.”
2. IMPROPER SIZE ON AUTO SEE MECHANICAL P.33
BUTTONHOLE ADJUSTMENT “BUTTONHOLE
FUNCTION (1).”
3. CHANGING TO BAR TACK SEE MECHANICAL P.34
IS TOO EARLY OR WILL NOT ADJUSTMENT “BUTTONHOLE
WORK. FUNCTION (2).”