71
TROUBLESHOOTING
SKIPPING OR IRREGULAR STITCHES
BREAKING THREADS
FABRIC PUCKERS OR STRETCHES OUT
OF SHAPE
NEEDLE BREAKS
MACHINE JAMS
MACHINE RUNS SLOW OR NOT AT ALL
NOISY MACHINE
FABRIC IS NOT CUT
FABRIC NOT CUT CORRECTLY
STITCHES ARE NOT FORMED CORRECTLY
ALONG FABRIC EDGE
Incorrect threading..............................................
Incorrect thread tensions....................................
Needle problems-poor quality, bent or dull...............
Needles not inserted correctly..................................
Do not pull on fabric, guide it gently.........................
Needle plate or foot not attached correctly..............
Cutting width dial not set correctly............................
Antenna not extended/positioned correctly..............
Incorrect threading..............................................
Incorrect thread tensions.....................................
Thread tangled or knotted........................................
When re-threading lower looper, needle
eye must be unthreaded before
re-threading looper................................................
Needle plate or foot not attached correctly...............
Antenna not extended/positioned correctly...............
Needle tension(s) too high........................................
Stitch length not set correctly....................................
Thread too heavy......................................................
Needle plate or foot not attached correctly...............
Differential feed not set correctly for fabric...............
Needle strikes foot or needle plate while pulling
on fabric; do not pull fabric, gently guide it...........
Needle problems poor quality, bent or dull...............
Needle(s) not inserted correctly................................
Incorrect threading..........................................
Needle plate not attached correctly.......................
Stitch length too short...........................................
Incorrect thread tensions.................................
Thread tangled or knotted....................................
Upper cutting blade is disengaged and
fabric edge is too far to right; needles
can break............................................................
Check safety system............................................
Reconnect foot control..........................................
Clean and oil........................................................
Switch machine on................................................
Clean and oil........................................................
Brush both cutting blades.....................................
Replace bent or dull needle(s)..............................
Replace upper cutting blade.................................
Upper cutting blade not engaged correctly...........
Upper cutting blade not attached correctly...........
Cutting width dial not set correctly........................
Upper cutting blade not attached correctly...........
Brush both cutting blades.....................................
Replace upper cutting blade.................................
Check instant rolled hem device position.............
Recheck all threading points...........................
Cutting width dial not set correctly........................
Check instant rolled hem device position.............
26-34
36-42
16
16
46
20
58
24
26-34
36-42
26
30
20
24
56
54
26
20
56
46
16
16
26-34
66
54
36-42
26
18
44
14
66
14
66
66
16
68
18
68
58
68
66
68
22
26-34
58
22
