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2.6 Hook drive housing
3
7
2
1
Caution! Risk of injury!
Switch off main switch.
Check and adjust position of hook drive housing only when the sewing
machine is switched off.
Instruction and inspection
The hook drive housing 6 is factory-aligned.
Only adjust the housing in exceptional circumstances!
If the hook drive housing is correctly aligned, the distance between the
back of the hook 2 and the set collar 1 must be approx. 0.4 mm.
The distance between the throat plate support and the thread tension
plate 5 must be 3.7 mm.
Use gauge 4 (order no. 0271 000767) to measure these distances.
Adjustment
Height of hook drive housing
–
Remove counter screw 3.
Below the counter screw lies a stop screw.
–
Loosen securing screws 6 of the hook drive housing 7.
–
Adjust stop screw.
The distance between the throat plate support and the thread
tension plate 5 is 3.7 mm.
–
Measure distance with gauge 4.
–
Tighten securing screws 6 of the hook drive housing 7.
–
Tighten counterscrew 3.
6
5
4
3-9
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