Operation Manual

Operation

Operating Instructions 610-01/630-01 - 02.0 - 08/2015 33

5.7.3 Adjusting the needle thread quantity

The needle thread quantity released for stitch formation is deter-

mined by the thread regulator setting. The required thread quantity

epends on the thickness of the sewing material, thread strength

and seam type. Furthermore, the threading process is different

for different threads and seam types (Page 28).

Fig. 13: Setting the thread regulator

Correct setting

• L

ess elastic threads: The hole (3) of the thread lever is visi-

ble in the thread lever’s bottom position just above the lower

bar (4) of the thread regulator: position (a).

• V

ery elastic threads: The hole (3) of the thread lever is visi-

ble in the thread lever’s bottom position just below the lower

r (4) of the thread regulator: position (b).

Risk of injury from moving parts.

Switch off the sewing machine before adjusting the

thread regulator.

WARNING

(1) – Fastening screws

(2) – Thread regulator

(3) – Hole of the thread lever

(4) – Thread regulator: Lower bar

(a)

(b)

④

②

③

①

④

③

①

②