Singer Industrial Serger Instruction Manual - Page 57

6.17

Feed Dog

Components

55

Ultra High Speed Overedge and Safety Stitch Machine

|

Instruction Manual and Parts List

3 thread

4 thread

5 thread

1

20702008

Shaft

1

1

1

2

H05009

Ring

1

1

1

3

20628023

Plug

1

1

1

4

20628011

Washer

2

2

2

5

2070400900

Crank assembly

1

1

1

6

207S13005

Screw

1

1

1

7

207811029

Screw

2

2

2

8

20709010

Block

1

1

1

9

20704011

Crank assembly

1

1

1

10

S05018

Screw

1

1

1

11

20710005

Pin

1

1

1

12

N01004

Nut

1

1

1

13

20628010

Wsher

1

1

1

14

20710006

Pin

1

1

1

15

207S13001

Screw

1

1

1

16

20722006

Gasket

1

1

1

17

20729002

Ring

1

1

1

18

1026

O ring

1

1

1

19

20709011

Block

1

1

1

20

20708008

Collar

2

2

2

21

207S14001

Screw

2

2

2

22

20705008

Link

1

1

1

23

20703013

Bushing

1

1

1

24

207S12003

Screw

1

1

1

25

30228008

Wsher

1

1

1

26

2070600100

Main feed dog bar

1

1

1

27

XXXXXXXX

Main feed dog assembly

1

1

1

28

XXXXXXXX

Main feed dog

1

1

1

29

XXXXXXXX

Auxiliary feed dog

1

1

1

30

207811029

Screw

1

1

1

31

801029

Screw

1

1

1

32

20706002

Differentrial feed dog bar

1

1

1

33

XXXXXXXX

Differentrial feed dog

1

1

1

34

207Sl1030

Screw

1

1

1

35

20709012

Block

1

1

1

36

20701011

Feed bar guide (Right)

1

1

1

37

207S13006

Screw

2

2

2

38

20701012

Feed bar guide (Left)

1

1

1

39

207S13006

Screw

2

2

2

40

20701013

Feed bar guide oil seal

1

1

1

41

20722007

Oil seal

2

2

2

42

207S13007

Screw

2

2

2

43

20721003

Tube

1

1

1

44

20712055

Clamp

1

1

0

45

207Sl1011

Screw

1

1

1

No.

Part No.

Description

Qty

Section	Page
Contents	2
1 Safety Instructions	4
1.1 Important Safety Instructions	4
1.2 For Safe Operation	5
2 Product Description and Machine Specification	6
2.1 Product Description	6
2.2 Machine Specification	7
2.3 Motor, Motor Pulley and V-Belt Specifications	8
3 Setup and Adjustment Instructions	9
3.1Table Cut-OutDiagram	9
3.2 Machine Installation	10
3.3 Lubrication and OilDrainage	12
3.4 Fill Silicon Oil to Reservoir	13
3.5 Needle Attachment (or Replacement)	13
3.6 Replacing Upper and Lower Knife	14
3.7 MachineThreading	15
3.7.1 EasyThreadingMethod	15
3.7.2ThreadingDiagram	15
3.8 Thread Tension Adjustment	16
3.9 Presser foot pressure	17
3.10 Adjusting the Differential Feed Rate	17
3.11 Stitch Length Adjustment	18
3.12 Parts Relation and Timing	19
4 Maintenance	20
4.1 Machine HeadCleaning	20
4.2 Oil Changeand FilterCleaning	20
4.3 SafetyInspection	20
5 Troubleshooting	21
6 Parts list	23
6.1 Machine Bed Frame Components	24
6.2 Machine Cover Components (1)	26
6.3 Machine Cover Components (2)	28
6.4 Crank shaft Drive Components	30
6.5 Thread Tension Components	32
6.6 Thread Guide and Thread Take-up Components (1)	34
6.7 Thread Guide and Thread Take-up Components (2)	36
6.8 Thread Guide and Thread Take-up Components (3)	38
6.9 Needle Bar Components (1)	40
6.10 Needle Bar Components (2)	42
6.11 Needle Plate and Needle Guard Components	44
6.12 Upper Looper Components	46
6.13 Lower Looper Components	48
6.14 Chain Stitch Looper Components (1)	50
6.15 Chain Stitch Looper Components (2)	52
6.16 Differencial Feed Components	54
6.17 Feed Dog Components	56
6.18 Knife Drive Components	58
6.19 Presser Foot Components	60
6.20 Lubrication Components (1)	62
6.21 Lubrication Components (2)	64
6.22 Silicon Oil Reservoir Components	66
6.23 Exclusive Parts List for 321K series	68
6.24 Thread Stand Components	70
6.25 Accessories	72
6.26 Machine Support Plate For Semi-Submerged Components	74
6.27 Specific Parts for 321D-251 Hand 321K-251H	75
6.28 Optional Parts	76
6.29 Back Latch Components	78
6.30 Vacuum Suction & AFL Device (Option parts)	80
ChainCutter DeviceComponents	82

Singer Industrial Serger Instruction Manual - Page 57

Auxiliary feed dog

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