Dürkopp Adler M-Type 869 Serviceanleitung Seite 22

2.5 Needle bar crank
2.5.1 Aligning needle bar crank to the side
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Caution: Danger of injury!
Turn off the main switch.
Only check and adjust the needle bar crank when the machine
is switched off.
Standard checking
The needle must go through the middle of the feed dog needle hole.
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Fitting a new needle.
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Turn the needle bar down with the hand wheel.
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Check the lateral position of the needle in the needle hole.
Correction
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Undo the screws on the adjustment rings 3 and 4.
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Set the needle bar crank laterally so that the needle is in the
middle of the needle hole.
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Line up adjustment rings 3 and 4 and tighten the screws.
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Undo screws 1.
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Align the thread lever laterally so that the play on the connecting
rod 2 on the cross head is the same on both sides.
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Tighten screws 1.
CAUTION Risk of breaking!
After the needle bar crank has been aligned laterally check the
distance between the hook tip and the needle. If necessary correct the
distance (see chapter 2.6.3).
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