Janome DC5100 - Page 10

8
SEWING MACHINE MODEL DC5100
CONDITION CAUSE HOW TO FIX REFERENCE
6. NOISY
OPERATION
1. BACKLASH BETWEEN HOOK
GEAR AND LOWER SHAFT
GEAR IS TOO GREAT.
2. LOWER SHAFT GEAR IS
LOOSE.
3. INAPPROPRIATE BELT
TENSION.
4. NOT ENOUGH OIL.
SEE MECHANICAL ADJUSTMENT
“BACKLASH (BETWEEN LOWER
SHAFT GEAR AND HOOK GEAR)”.
ELIMINATE THE LOOSENESS.
SEE REPLACING DC MOTOR AND
ADJUSTING MOTOR BELT TENSION
(DC MOTOR)”.
OIL ALL MOVING PARTS.
P. 2 2
P. 3 5
P. 4 2
7. DEFORMATION
PATTERN
1. INAPPROPRIATE FEED
BALANCE.
2. INAPPROPRIATE ZIGZAG
SYNCHRONIZATION.
3. UPPER THREAD TENSION
IS TOO STRONG.
SEE MECHANICAL ADJUSTMENT
“STRETCH STITCH FEED
BALANCE ADJUSTMENT”.
SEE MECHANICAL ADJUSTMENT
“ZIGZAG SYNCHRONIZATION”.
SEE MECHANICAL ADJUSTMENT
“NEEDLE THREAD TENSION”.
P. 2 6
P. 2 4
P. 2 7