Timing The Opening - Duerkopp Adler 975-1-5 Service Instructions Manual

2.4.3 Timing the Opening

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1 2
The middle piece should be opened at the moment the thread slips
through between the middle piece 2 and its holder 1.
Caution Risk of Injury !
Conduct adjustment work and function testing only with greatest
possible caution.
–
Lower the sewing head.
Set the program switch to 44 and press the " STOP " key.
The sewing head is lowered and the needle plate and pressure
foot raised.
–
Loosen screw 3.
–
With the handwheel bring the needle bar 1 mm behind the upper
dead center (seen in the direction of run).
–
Turn eccentric 4 until the finger is at the forward reversing point.
The middle piece 2 must be completely open.
–
Tighten screw 3.
3
4