Operating instructions

Operation

Operating instructions 906 - Version 00.0 - 05/2014

5.8 Setting the thread regulator

The thread regulator determines the needle thread quantity to be guided

around the hook. The required thread quantity depends on the thickness

of the material to be sewn, thread strength, and stitch length.

• Larger thread quantity for

• thick sewing material

• thick thread strengths

• large stitch lengths

• Lower thread quantity for

• thin sewing material

• thin thread strengths

• small stitch lengths

Proper setting

The loop of the needle thread slides at low tension over the thickest point

of the hook. The largest amount of thread is required, and the thread ten-

sioning spring (1) should be pulled approx. 0.5 mm out of the lower end

position.

Figure 14: Setting the thread regulator

Steps

1. Undo the fastening screw (2) with a cross-head screwdriver.

2. Move the thread regulator (3):

• Lower thread quantity: Slide the thread regulator (3) to the right.

• Larger thread quantity: Slide the thread regulator (3) to the left.

3. Tighten the fastening screw (2).

(1) - Thread tensioning spring

(2) - Fastening screw

(3) - Thread regulator

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③

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