Important
If the dimension does not match the calculated dimension for the ellipsis
width, the lower shaft (2) must be loosened and adjusted ( Section
9.3.3, pg. 45).
When adjusting in the axial direction, the ellipsis width changes in the ratio
of 1:2, i.e., when the lower shaft is moved, e.g. by 0.2 mm, the ellipsis
width changes by 0.1 mm.
Faults due to incorrect setting
• Damage to the looper
• Damage to the needle
• Missed stitches
• Thread breakage
9.3.2 Resetting the needle protection
Fig. 36: Resetting the needle protection
Setting steps
1. Loosen the screws (1) and reset the needle protection (2).
44
①
(1) - Screws
(2) - Needle protection
Setting the looper
②
Service Instructions 610/630 - 00.0 - 10/2014