T-8421C, 8422C, 8452C, 8722C, 8752C
13. STANDARD ADJUSTMENT
74
13-11. Feed dog angle
The standard angle for the feed dog is when the mark (2) on
the feed bar shaft (1) is aligned with the reference line (4) on
the feed rocker base arm (3).
1. Tilt back the machine head.
2. Loosen the set screw (5).
3. Insert a screwdriver into the slit (6) in the feed bar shaft
(1), and turn it to make the adjustment.
4. Tighten the set screw (5).
* When the angle of the feed dog is adjusted, the
forward-back position of the feed dog will change. Loosen
the two screws (7) and adjust the forward-back position of
the feed dog in accordance with the needle (for lower feed,
in accordance with the needle plate).
* In addition, when the angle of the feed dog is adjusted,
the height of the feed dog will also change, so readjust the
height of the feed dog.
3067M
Front raised
Standard
Front lowered
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