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12.3 Setting the time of the feed motion
Fig. 61: Feed motion of the top feed foot
(1) - Advance lever
(2) - Top feed foot
Check correct setting
If the sewing machine is in position D, the advance lever (1) should be vertical.
If the sewing machine is in position D and a stitch length of 4 mm is set,
the top feed foot (2) should not move when the top feed guide is swung
out.
Faults due to incorrect setting
• Poor synchronization of the top feed to the bottom feed
• Ruffing behavior is poor
Cover
• Remove the head cover ( Section 3.5.2, pg. 12)
• Remove the arm cover ( Section 3.5.3, pg. 12)
Fig. 62: Feed motion of the top feed foot
(3) - Thrust cam
66
Warning
Risk of injury
Risk of crushing from moving parts
Switch off the sewing machine before adjusting the feed
motion.
①
③
②
④
(4) - Groove
Service Instructions 610/630 - 00.0 - 10/2014
Foot top feed
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