Service manual

Adjusting the light barriers
Service manual 512/532 Version 00.0 - 12/2013 19
4 Adjusting the light barriers
4.1 Light barrier sensor disks
The light barrier sensor disks are used as a reference for positioning by
the control unit.
Checking the correct setting
 The 180° disk points to the front and its lower edge is precisely lined
up with the light barriers slots.
Faults caused by an incorrect setting
• Damage to fabric, wrinkling
• Incorrect needle position, needle jams in the hole
• Incorrect transport times
• Incorrect thread cutting
• Poor sewing results
Cover
• Remove rear cover ( Section 3.3.6, page 13).
Figure 13: Light barrier sensor disks
WARNING
Risk of injury!
Crushing injuries from moving parts.
Switch off the sewing machine before adjusting the
light barriers.
(1) - Thread trimmer sensor disk (2) - Thread wiper and fabric clamp
sensor disk
②
①