1
Plate gauge
Lower looper height gauge
Timing gauge
Needle bar gauge
Lower looper height
A
C
F
G
B
E
D1
D2
A: Needle bar height (Refer to page 11)
B: Presser bar height (Refer to page 12)
C: Feed dog height (Refer to page 13)
D1: Minimum stitch length (Refer to page 15)
D2: Maximum stitch length (Refer to page 15)
E: Overlap of the upper knife and the lower knife (Refer to page 17)
F: Leftmost position of the upper looper (Refer to page 26)
G: Timing of the upper looper and the lower looper (Refer to page 27)
Guide line
Travel
Bulge
Position of the lower looper tip
Upper looper tip gauge
Position of the upper looper tip
Not gauge.
If threading special threads, such as wooly nylon.
Looper threading wire to clean the pipe of the looper.
Required Tools