Table of Contents
Advertisement
Differential top and bottom feed
11.2 Setting the stroke motion of the feed
Check correct setting
When the needle eye of the descending needle reaches the hole of the
throat plate, the descending tooth points of the feed should be level with
the throat plate surface. This setting corresponds to slot D of the adjusting
disk.
Faults due to incorrect setting
• Damage to the looper
• Damage to the needle
• Missed stitches
• Thread breakage
Cover
• Tilt the machine ( Section 3.5.1, pg. 11)
• Remove the oil pan ( Section 3.5.8, pg. 17)
Fig. 52: Stroke motion of the feeds
①
②
(1) - Screws
(2) - Stroke cam
Setting steps
1. Loosen both screws (3) and remove the grease cap (4).
1. Loosen both screws of the stroke cam (2).
2. Setting the stroke cam:
3. Position the grease cap (4) and secure with both screws (3).
Service Instructions 610/630 - 00.0 - 10/2014
WARNING
Risk of injury
Risk of crushing from moving parts
Switch off the sewing machine before checking and setting
the stroke motion.
The second screw (3) is accessible from the upper side of the base plate.
• Turn clockwise: earlier stroke
• Turn counterclockwise: later stroke
③
④
(3) - Screws
(4) - Grease cap
59
Advertisement
Table of Contents
