DURKOPP ADLER 610-10 Service Instructions Manual page 59

Individual settings
Fig. 42: Setting the retention spring on the looper
(1) - Holding point
(2) - Retention spring
(3) - Looper
To set the retention spring on the looper:
1. Loosen the screw (4).
2. Set the distance to 0.5 mm by sliding the retention spring (2).
3. Align the retention spring (2) such that it abuts on the looper (3).
4. Tighten the screw (4).
5. Tilt the machine head and turn on the handwheel.
Important
The force of the pressure exerted by the spring against the looper must be
checked when the machine is completed and threaded.
6. Check the described stitch formation during the right-to-left and left-to-
7. Carry out the sewing process.
8. Check the stitch pattern.
Service Instructions 610-10/630-10 - 01.0 - 12/2016
① ②
Make sure that the pressure is greatest in front at the holding point (1).
right looper motion.
If required, reduce or increase the pressure of the retention spring by
bending it:
• if the needle thread loop (5) is not pushed beyond the holding point
(1) = reduce
• if the needle thread loop is not held at the holding point (1) until the
needle plunges into the thread triangle on the left in front of the
needle thread loop (5) = increase
⑤
③
(4) - Screw
(5) - Needle thread loop
④
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