Adjusting the thread cutter
Service Instructions 967 - 02.0 - 12/2015
81
14.6 Setting the hook thread clamp
Proper setting
If the hook thread clamp (4) is set to the correct pressure:
The end of the hook thread (1) at the start of the seam must be 40 - 50 mm
long.
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• Tilt the machine head ( p. 10).
Fig. 57: Adjusting the hook thread clamp
Setting steps
1. Perform a few short seams, cutting off th
e thread at the end of each seam.
2. Measure the lengths of the ends at the hook thread (1) at the start of
the seams.
• If the thread ends (1) are shorter than 40 mm: Increase the pressure
at the hook thread clamp (4):
- Loosen the screw (2).
- Turn the eccentric (3) slightly counterclockwise.
- Tighten the screw (2).
Proceed in this way until a satisfactory result is obtained.
• If the thread ends (1) are longer than 50 mm: Reduce the pressure
at the hook thread clamp (4):
- Loosen the screw (2).
- Turn the eccentric (3) slightly clockwise.
- Tighten the screw (2).
Proceed in this way until a satisfactory result is obtained.
(1) - End of the hook thread
(2) - Screw
(3) - Eccentric
(4) - Hook thread clamp spring
①
②
④
40-50 mm
③
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