Singer 263-1 - HEIGHT; CHECK LIST FOR CAUSES OF TROUBLES

HEIGHT
When machine is set for longest stich, approximate
ly the full depth of the rear teeth of feed dog should
project above the top surface of throat plate, as shown
in Fig. 35.
To adjust, remove feed dog from machine. Raise or
lower stop screw, shown in Fig. 34, as required. Re
place feed dog so that it rests firmly upon stop screw,
as shown in Fig. 34. Recheck feed dog height. Se
curely tighten feed dog screw, when correct height of
feed dog is obtained.
FULL DEPTH
REAR TEETH
THROAT PLATE
Fig. 35. Correct Height of Feed Dog
CHECK LIST FOR CAUSES OF TROUBLES
PUCKERED SEAMS:
1. Blunt needle or wrong pointed needle.
2. Stitch too long (except for "wash and wear"
materials).
3. Tension too tight.
4. Needle hole in throat plate too large.
5. Operator pulling and
stretching the material while
machine is
stitching.
6. Feeding too much material while stitching.
LOWER THREAD BREAKING:
1. Lower tension too tight.
2. Improper threading of looper.
3. Burr on looper or on underside of throat plate.
UPPERTHREAD BREAKING:
1. Upper tensions too tight.
2. Improperthreading.
3. Needle bent or damaged (blunt point). Burr on
needle.
4. Thread too coarse for size of needle and material.
5. Burr on looper or in needle hole of throat plate
(caused by breaking of needle).
6. Needle turned wrong when
set in needle bar.
7. Needle too long, or not
set all the way up in
needle bar.
8. Tension discs worn so deeply that thread works
in a groove.
9. Thread catching upon an imperfection on the
surface of machine arm.
SKIPPING STITCHES:
1. Looper incorrectly set (front to rear).
2. Needle not
accurately set in needle bar.
3. Needle dirty,
bent or damaged (blunt point).
4. Needle eye too small for thread use.
5. Needle too short or too long for machine.
6. Needle point of wrong shape for material.
7. Oil on needle.
15
From the library of: Superior Sewing Machine & Supply LLC