Adjusting the height of the feed dog
Turn the machine pulley forward until the feed dog (1) is
at its highest position, and then adjust so that the feed
dog (1) protrudes 0.9 to 1.1 mm from the top of the
needle plate (2).
1
Tilt back the machine head.
2
Loosen the screw (3) just enough so that the feed
bar (4) can slide.
3
Turn the height adjustment screw (5) as shown in
the illustration to adjust the height of the feed dog
(1).
4
Securely tighten the screw (3).
5
Recheck the height of the feed dog (1).
If the feed dog is too high
• The feed dog may touch the needle plate.
• The stitch length may become longer than the
stitch length dial setting.
• Thread tightening may be poor when using thick
threads.
• It may be difficult to obtain uniform stitch lengths
for normal feed and reverse feed.
• Lower thread trimming errors may occur.
(T-8422D/T-8452D/T-8722D/T-8752D)
If the feed dog is too low
• The stitch length may become shorter than the
stitch length dial setting.
• It may be difficult to obtain uniform stitch lengths
for normal feed and reverse feed.
• The feed dog may touch the movable knife.
(T-8422D/T-8452D/T-8722D/T-8752D)
• Large variations in stitch length may occur at
slow and fast sewing speeds.
Related Information
• Adjusting the feed dog angle on page 84
83