DURKOPP ADLER 755 A, Service Instructions Manual

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Hook
74 Service Instructions 755 A/756 A - 00.0 - 02/2019
7.5.2 Setting the lifting gap
Fig. 74: Setting the lifting gap (1)
To set the lifting gap:
1. Swivel up the machine head ( 
p. 16
).
2. Loosen caps (1) and (2) on the sides of the hook supports.
• Cap (1): left hook
• Cap (2): right hook
Fig. 75: Setting the lifting gap (2)
3. Turn the handwheel into the 275° position.
 The bobbin case is lifted.
4. Loosen the screws below cap (1) and cap (2).
5. Turn the bobbin capsule lifter (3) such that the distance between the
nose of the bobbin case (4) and the throat plate cutout (5) is 1 mm.
6. Use a suitable tool - e.g. a gage, a drill or a wire - to check the distance.
7. Tighten the screws below cap (1) and cap (2).
(1) - Cap (2) - Cap
① ②
(3) - Bobbin capsule lifter
(4) - Nose of the bobbin case
(5) - Throat plate cutout
⑤
④
1 mm
③