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Setting the looper
Fig. 31: Setting the rocker bolt
(1) - Gauge
(2) - Rocker bolt
(3) - Screw
(4) - Lower shaft bearing
3. Loosen the set collar (7), cam (6), toothed wheel (5) and the screw (3).
4. Slide the lower shaft (8) such that there is a distance of 1 mm between
5. Fasten the set collar (7) and cam (6), tighten the screw (3) and align the
6. Tighten the screws.
7. Check the movement of the toothed belt on the lower toothed belt wheel.
8. Fit the looper drive housing ( Section 9.1.2, pg. 36) and fill with DA 10
Faults due to incorrect setting
• Damage to the looper
• Damage to the needle
• Damage to the thread cutter
• Missed stitches
• Thread breakage
Service Instructions 610/630 - 00.0 - 10/2014
①
④
②
the lower shaft bearing (4) and the rocker bolt (2) or the rocker bolt is
against the gauge (1).
toothed wheel (5).
If required, align the lower toothed belt wheel.
oil ( Section 9.1.1, pg. 35).
⑤
⑥
③
(5) - Toothed wheel
(6) - Cam
(7) - Set collar
(8) - Lower shaft
⑧
⑦
39
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