6
SEWING MACHINE
MODEL DC5100
CONDITION
CAUSE
HOW TO FIX
REFERENCE
1. SKIPPING
STITCHES
1. NEEDLE IS NOT INSERTED
PROPERLY.
2. NEEDLE IS BENT OR WORN.
3. INCORRECTLY THREADED.
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.
CHANGE THE NEEDLE.
RETHREAD.
USE THE RECOMMENDED
SEWING NEEDLE AND THREAD.
USE A #11 BLUE TIP NEEDLE.
SEE MECHANICAL ADJUSTMENT
“NEEDLE BAR HEIGHT”.
SEE MECHANICAL ADJUSTMENT
“NEEDLE TO HOOK TIMING”.
SEE MECHANICAL ADJUSTMENT
“CLEARANCE BETWEEN NEEDLE
AND HOOK”.
P. 19
P. 20
P. 21
2. FABRIC NOT
MOVING
1. INCORRECT FEED DOG HEIGHT.
2. FEED DOG IS IN DOWN
POSITION.
3. THREAD ON BOTTOM SIDE OF
FABRIC IS JAMMED UP.
4. FEED DOG TEETH ARE WORN.
SEE MECHANICAL
ADJUSTMENT “FEED DOG HEIGHT”.
RAISE THE FEED DOG.
MAKE SURE TO BRING BOTH
NEEDLE AND BOBBIN.
THREAD UNDER THE FOOT WHEN
STARTING SEWING.
CHANGE THE FEED DOG.
P. 23
WHAT TO DO WHEN