Singer 321D, 321K instruction manual Parts Relation and Timing

3.12

Parts Relation and Timing

3,4 Thread 5 Thread

(c) (e)

(b)

(d)

(a) Top surface of the		(a)
	needle plate

Figure 21

(g)

(f)

Figure 22 Figure 23

Top surface of the needle plate

(h)

Figure 25

Top surface of the needle plate

Figure 24

									Figure 27
					Figure 26
				Upper looper						Feed dog
	Height of	Lower looper	Upper looper	Height of	Upper looper		Chain looper			Height of
Model		left limit			holder left	Upper looper	left limit	Height of feed
	needle
321D & 321K		position	left limit	upper looper			position (f)			auxiliary feed	Feed
	(Figure 21)				limit position	holder install		dog (g)
		(Figure 22)	position ( c )	( c )			(Figure 24)			dog (h)	eccentric
					(e)	direction		(Figure 25)
			(Figure 23)	(Figure 23)	(Figure 23)					(Figure 27)
-131M-04	10.5	3.8	4.4~4.7	10.8	14.5	Left	-	0.8		0.5	0.35~2.0
-131M-04 / KS	10.5	3.8	4.4~4.7	10.8	14.5	Left	-	0.8		0.5	0.35~2.0
-132M-015	10.5	3.8	4.4~4.7	10.8	14.5	Left		0.6~0.7		0.3	0.35~1.7
-134M-04	10.5	3.8	5.4~5.7	10.5	13.5	Right	-	0.8		0.5	0.35~1.7
-241M-24	10.5	3.8	5.4~5.7	10.5	13.5	Right	-	0.8		0.5	0.35~2.0
-241M-24 / KS	10.5	3.8	5.4~5.7	10.5	13.5	Right	-	0.8		0.5	0.35~2.0
-244M-24	10.5	3.8	5.4~5.7	10.5	13.5	Right	-	0.8		0.5	0.35~2.0
-251M-35	10.5	3.8	4.4~4.7	10.8	14.5	Left	1.5	0.8		0.5	0.35~2.0
-251M-35 / KH	10.5	3.8	4.4~4.7	10.8	14.5	Left	1.5	0.8		0.5	0.35~2.0
-251M-55	10.5	3.8	4.4~4.7	10.8	14.5	Left	1.5	0.8		0.5	0.35~2.0
-251H-55 / KH	10.5	3.8	4.4~4.7	10.8	14.5	Left	1.5	0.8		0.5	0.35~2.0
-251H-56	11.9	4.2	5.0~5.3	12	14.5	Left	1.7	0.8		0.5	0.35~2.0
-251H-56 / KH	11.9	4.2	5.0~5.3	12	14.5	Left	1.7	0.8		0.5	0.35~2.0

Ultra High Speed Overedge and Safety Stitch Machine Instruction Manual and Parts List 16