Feed Dog Height And Parallelism - Baby Lock Mid-Line Machines Technical Training Manual

Adjustment
[Standard]
• When the feed dog is at its highest position, the feed dog height from the surface of the
needle plate A assy should be 1 ±0.1 mm (0.9 to 1.1 mm).
• When the feed dog is at its lowest position, the feed dog should be lowered more than
0.3 mm from the surface of the needle plate A assy.
• The feed dog should be in parallel with the needle plate A assy.
[Adjustment]
1. Remove the presser foot, the presser foot holder and the needle.
2. Start the test mode, and then select the #06 (Feed dog position mode).
3. Turn the pulley several times by hand (the feed dog moves to center position).
4. Turn the pulley by hand to raise the feed dog to its highest position.
5. Turn the screw A of the feed bar assy, and adjust the height from needle plate A assy surface to back tooth of the
feed dog. (Fig.1)
Pulley
Hex wrench
2 mm
Feed bar assy
Screw A
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Feed dog height and parallelism

Feed dog
The feed dog moves
to center position.
Needle plate A assy
Feed dog
Fig.1
4 - 21
48
Screw A
Set Screw, Socket (FT) M4X10
Needle plate A assy
Feed dog to its highest position
Needle plate A
surface
1 ±0.1 mm (0.9 - 1.1 mm)