Brother S-7300A Service Manual page 131

(9)
Set to maximum pitch
All OFF
5. Press the XXX key (9). (P1 and P2 will switch.)
6. Press the (+) and (-) keys (10) to change the adjustment
so that the amounts by which the feed dog (8) is touching
the scale (7) at P1 and P2 are the same.
(10)
7. Press the OK key (11).
(11)
8. Press the power switch (5) to turn on the power.
1090D
9. Set the feed pitch to the maximum pitch.
10. Start backtack sewing, best PFM mode, slow start,
special locus and X-over seam assist will turn off.
11. Turn the pulley by hand, or operate the sewing machine
at inching speed (220 sti/min) and check that the feed
dog and the needle plate do not touch.
12. If they touch, re-adjust the position of the feed rocker
bracket arm, or reduce the setting for memory switch
200 by following the method in "Matching the stitch
length" in the next section.
S-7300A
7. ADJUSTMENTS
120