11.9 Changing the Hook
Caution Risk of Injury !
Turn the main switch off.
Change the hook only with the main switch turned off.
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Remove the needle plate 7 after loosening the mounting screws.
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Remove the top of the bobbin case 6 with bobbin.
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Loosen the screws 5 on the hook cover 4.
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Take off hook cover 4.
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Take the bottom of the bobbin case 3 out of the hook.
For this turn the handwheel back and forth slightly.
Attention!
Use no force to remove the bottom of the bobbin case.
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Loosen the mounting screws 1 of the hook.
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Lift the hook from the hook shaft and remove.
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Place a new hook on the hook shaft.
The position of the hook on the hook shaft is determined by the
arrangement of the drilled holes in the bottom of the hook.
This assures that the hook point lies at the center of the needle
again after the looping stroke is completed.
–
Insert the bottom of the bobbin case 3 in the new hook.
Attention!
The securing nose 2 of the bottom of the bobbin case must thereby
catch in the recess 8 of the needle plate 7.
–
Replace the hook cover 4 and fasten with the screws 5.
–
Attach the needle plate 7 again.
2 7
1 2 3 4 5 6 7 8
56
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