Page 29/37
Original issue
January 2009
Service Manual
COSMO-7/8
series
Model
15. Stitch length --continued--
2. Turn position adjusting bolt (B) on motor bracket in either direction using 3.0 mm
hex driver.
a. Rotate bolt (B) clockwise when the top of buttonhole is shaped as (1) illustrated in the
previous page
B
Change Inclination of feed regulator
and stitch pitch will be varied:
*Lower motor unit to change reverse
stitch pitch.
*Raise it to change forward stitch pitch.
Adjusting bolt (B)
Feed regulator
Reverse stitch pitch is too small.
Note:
*Loosen screw (A) beforehand.
*Don’t overshoot.
*Test sewing after tightening screw (A)
temporarily
A
B
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