Silvercrest SNMD 33 A1 User Manual download pdf (Page 80)

Lower thread tension (B)

Note:

The bobbin tension is adjusted

correctly during manufacturing,

therefore no changes are necessary.

To test the bobbin thread tension, the full

bobbin is placed in the bobbin case. The

bobbin case and gripper are then

suspended by the end of the thread. If the

tension is correct, the thread will unwind

by about 5 to 10 cm. when gently swung

and will then remain suspended. If the full

bobbin case unwinds, the tension is too

slack. If the tension is too tight, it hardly

unwinds or does not unwind at all. To

adjust, use the small screwdriver (I).

80

GB / IE

Thread tension

Upper thread tension (A)

Basic upper thread tension setting:

"AUTO"

To increase the tension, turn the dial to

the next higher number. To reduce the

tension, turn the dial to the next lower

number.

1. Normal thread tension

2. Upper thread tension too loose

3. Upper thread tension too tight

Bringing up the lower thread

Hold the end of the upper thread with the

left hand. Turn the handwheel (21) in the

anticlockwise direction until the needle is

again raised (a complete revolution).

Pull on the upper thread to bring the

lower thread up through the stitch plate

hole. Lay both threads to the back under

the presser foot.

Getting ready

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