Operating instructions

8.2 Thread take-up spring and thread regulator

Standard:

While the thread lever is moving down from its upper dead center, the

thread take-up s pring should hold the thread tight until the needle

penetrates the fabric.

Setting of the thread controller spring:

–

Loosen screw 1.

–

Turn ring 2 for altering the tension.

–

Turn case 3 for altering the spring travel.

(Spring travel 2-3 mm)

–

Tighten screw 1 again.

Setting of the thread regulator:

–

Loosen screw 4.

–

The distance 5 (inner flanks of the thread regulator) s hould be set

to 5 mm.

–

Tighten screw 4.

Note:

To obtain an optimal thread take-up with thick material, the regulator

should be shifted to the rear. The optimal position can be determined

through sewing tests.