Inspection and
Adjustment
Inspection and
Adjustment
4 - 26
Adjustment Feed dog height
[Standard]
When the feed dog is its highest position, the feed dog height from the surface of the
needle plate should be 1 ±0.1 mm (0.9 to 1.1 mm).
When the feed dog is its lowest position, the feed dog is 0.3 mm or more lower than the
surface of the needle plate.
[Adjustment]
1. Remove the presser foot.
2. When the needle plate assy is removed, attach the needle plate assy.
3. Turn the pulley by hand and move the feed dog to its highest position.
4. Insert the hex wrench into the hole of the needle plate, and adjust the feed dog height from the surface of the
needle plate by turning the screw 1.
*Key point
• Loosen the screw
1. (turn to the direction of “a”) → The feed dog is lowered.
• Tighten the screw 1. (turn to the direction of “b”) → The feed dog is raised.
[Confirmation]
When lower the feed dog by turning the pulley by hand, check that the feed dog is lower than the surface of the
needle plate.
1
XC2278001 Feed dog height gauge
Set Screw, Socket (FT)
M4X17
Feed dog highest position
Feed dog lowest position
Needle plate
surface
Needle plate
Needle plate
surface
Hex wrench
2 mm
1
1.5 mm 1.5 mm
Feed dog
height gauge
17.2 mm
20.2 mm
A
0.9 mm
A (10 : 1)
1.1 mm
1 0.1 mm (0.9 - 1.1 mm)
0.3 mm or greater
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