Singer 7285Q - Adjusting Top Thread Tension; Changing Presser Foot

Page 28/38
Original issue
May, 2014
Service Manual
7285Q
Model
15. Stitch length --continued--
(C) Stitch balance
If forward and reverse stitch pitch is not balanced, adjust by changing position of motor.
*Check meshing of motor gears and origin point positioning before adjustment.
Checking
Keyhole buttonhole is used to adjust stitch length, since many stitch patterns are built in this
model:
1. Select large size of keyhole buttonhole pattern.
2. Set buttonhole foot.
3. Thread the machine with thread “Coats & Clark No. 60 and sew the buttonhole on a demo
swatch.
4. Check sewn result of top of buttonhole.
a. If it is shaped as “1” below, reverse stitch pitch is too small.
b. If it is as “2” below, forward stitch pitch is too small.
Adjustment
1. Loosen fixing bolt (A) on motor bracket using 2.5 mm hex driver.
B
A
1
2