Duerkopp Adler 291 Service Manual download pdf (Page 8)

6.4 Adjusting the thread regulator

The thread regulator 1 regulates the amount of needle thread necessary for stitch

formation.

The setting depends on the following factors: - material thickness

- yarn characteristics

- stitch length

A properly-adjusted thread regulator ensures an ideal sewing result at a minimum

needle-thread tension.

At the correct setting the needle-thread loop must slide at low tension over the thickest

point of the shuttle.

Caution - danger of injury!

Turn off the main switch.

The thread regulator may only be adjusted with the sewing

machine switched off.

–

Undo both screws 2.

–

Move the thread regulator 1.

The thread regulator is fitted with slots for this purpose.

Moving in the

"+"

direction increases the quantity of needle thread

Moving in the

"-"

direction reduces the quantity of needle thread

–

Tighten screws 2.

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 27 28

No comments

Duerkopp Adler 291 Service Manual Page 8