PROBLEM |
|
| PROBABLE CAUSE | CORRECTION | |
The material | Upper | or lower thread tension too tight | P.12, | P.20 | |
puckers | Stitch too long for material | P18 | |||
| |||||
| Thread | too | thick | P16 | |
| Incorrect threading of upper or lower thread | P.1 3, | P.1 1 | ||
Breaking needle | Needle | not | correctly inserted | P. | 6 |
| Needle | bent |
| P. | 6 |
| Needle clamp screw too loose | P. | 6 | ||
| Upper thread tension too tight | P.20 | |||
| Needle too fine for the material | P.1 6 | |||
| Dials have been changed while the needle | P.18, | P.22 | ||
| was down in the material |
|
| ||
| Zigzag width set more than 2.5 while twin | P.14 | |||
| needle | was | attached |
|
|
trouble is still apparent in the machine, please consult your nearest dealer.
D not try to correct fault by yourself.
NChanging Light Bulb
Unplug the machine.
Open face cover as shown.
Remove bulb by unscrewing it in counterclockwise.
Install a new bulb by screwing it in clockwise.
