Feed Balance - Singer Futura Quartet FQ-4 Service Manual

10. Feed Balance

*Pay much attention to this adjustment which is very important and critical.
Check of "Zero" feeding
1. Enter Test mode and select stitch 2 to check "Zero" feed.
2. Place a piece of paper or fabrics under presser foot and run the machine, at this point there should not
be any feeding.
Adjustment of "Zero" feeding
B
1. Enter Test mode and select stitch 2 .
2. Place a piece of paper or fabrics under presser foot and
run the machine and check to see the feeding direction
3. To adjust eventuall feeding, loosen up the screw (A).
4. Adjust by turning screw (B) in either way until correct
- If the 3 mm Hex screw (B) is turned clockwise, it will feed
in forward direction.
- If the 3 mm Hex screw (B) is turned counter clockwise, it
will feed in reverse direction.
5. Hold the 3 mm Hex screw (B) while tighten the screw (A).
6. Re-check.
Adjustment can be done without removing the front and the
rear covers . Only the base plate should be removed before adjust-
ment.
Check of stitch balance
After checking or setting the "Zero" feeding , the fi ne tunning of the
stich balance has to be done.
A
1. Turn on the machine, select a large key button hole in normal
sewing mode.
2. Thread up the machine.
3. Sew larger size of keyhole buttonhole and the balance of the head portion should be equal between
right and left sides.
Adjustment of stitch balance
1. If feed is not correct,
Adjustment can be done without removing the front and the rear covers .
Only the base plate and feeding cap should be removed before adjustment.
2. Turn on the machine in function mode, select a large key button hole in
normal sewing mode.
3. Loosen up the screw (A) .
4. Adjust by moving the motor gear in either direction with 3 mm hex driver.
- Turn the screw (B) clockwise to adjust reverse stitch.
- Turn the screw (B) counter clockwise to adjust forward stitch.
Repeat the process until desired feed balance is obtained.
4. Tighten the screw (A).
5. Re-check from point 1 in "check of stitch balance"
Singer Futura XL-400 , FQ-4 15