Bernette b68 AIRLOCK - Selecting the Needle; Detect Defective Needles

Sewing Start
39
2022-05 EN 50400685.00A.04
4.4 Selecting the Needle
It is recommended to use the needle type ELx705 CF (Chrome Finish) version as they are more durable due to
the chrome coating. The machine runs most reliably with these needles because of their second groove. The
needles should be replaced regularly. Only a perfect needle point can achieve a proper stitch.
2
1
3
4
A
B
A Coverstitch Needle ELx705 CF/80 3 CF = ChromFinish
1 Two Thread Grooves 4 / B 80 = Needle Size
2 705 = Flat Shank
• Needle size 80: For any common applications. for mid-weight to heavy fabrics.
• Needle size 90: for heavy fabrics.
• Needle size >90: In exceptional cases, only for very heavy fabrics.
Detect Defective Needles
Check the needle before each sewing start and replace it if necessary.
1 Bent Needle 3 Blunt Needle
2 Damaged Needle Point