Singer 20U109 - Page 44

41
Zigzag Sewing Machine | Instruction Manual and Parts List
6.5
Bight Ampli-
tude, Bight
and L-C-R
Position
Components
109 109C 112 112C 309 910
1 606511 Screw 2 2 2 2 2 0
2 606571 Washer 2 2 2 2 2 0
3 606569 Stop plate 2 2 2 2 2 0
4 606554 Lever arm regulating screw nut 2 2 2 2 2 0
5 606553 Lever arm regulating screw 2 2 2 2 2 0
6 606572 Screw 2 2 2 2 2 0
7606577 Spring 111110
8 606575 Regulating plate (left) 1 1 1 1 1 0
9 606576 Regulating Plate (right) 1 1 1 1 1 0
10 606574 Regulating plate holder 1 1 1 1 1 0
11 606573 Thumb screw 2 2 2 2 2 0
12606556 Spring 111110
13 606665 Bight amplitude control mech. assembly 1 1 0 0 0 0
606666 Bight amplitude control mech. assembly 0 0 1 1 0 0
14 606667 Slide block & guide assembly 1 1 0 0 0 0
606668 Slide block & guide assembly 0 0 1 1 0 0
15 606546 Slide block 1 1 1 1 0 0
16 606669 Slide block guide assembly 1 1 0 0 0 0
606547 Slide block guide assembly 0 0 1 1 0 0
17 606670 Guide stud set screw 1 1 1 1 0 0
18 606557 Slide block crank assembly 1 1 1 1 0 0
606557-308 Slide block crank assembly 0 0 0 0 1 0
19 606555 Slide block crank set screw 2 2 2 2 2 0
20 606549 Slide block crank link 1 1 1 1 0 0
606549-308 Slide block crank link 0 0 0 0 1 0
21 606671 Hinge screw 2 2 2 2 2 0
22 606551 Position lever arm 1 1 1 1 1 0
23 606552 Guide stud 1 1 1 1 1 0
24606560 Collarassembly 111110
25 606518 Collar set screw 2 2 2 2 2 0
26 606562 Crank shaft bushing 1 1 1 1 1 0
27 554139-383 Crank shaft knob assembly 1 1 1 1 1 0
28 606564 Position block screw 2 2 2 2 0 0
29 606568 Position block screw washer 2 2 2 2 0 0
30 606673 Position block 1 1 0 0 0 0
606563 Position block 0 0 1 1 0 0
31 606674 Position lever screw 2 2 2 2 0 0
32 606566 Position lever assembly 1 1 1 1 0 0
33 606565 Position lever screw pin 1 1 1 1 0 0
34 606675 Position lever screw pin nut 1 1 1 1 0 0
35 606675 Thumb stud nut 1 1 1 1 0 0
36 606676 Thumb stud spring washer 1 1 1 1 0 0
37 554140-383 Thumb stud 1 1 1 1 0 0
No. Part No. Description
Qty