1

Clean inside of machine

16

Check feed dog

2

Oil machine

17

Check needle front to back

3

Check motor

18

Check needle position

4

Check foot control

19

Check zig zag swing

5

20

Check hook

6

Check belt

21

Check backrun/timing

7

22

Check needle height

8

Check handwheel

23

Check needle hook clearance

9

Check bobbin winder

24

Adjust bobbin case tension

10

Check spool holder

25

Adjust top tension

11

Check camstack gear

26

Adjust straight stitch

12

Check tension unit

27

Adjust zig zag stitch

13

28

Adjust thread regulator

14

Check presser foot bar

29

Check needle plate

15

Check hook driver

30

Clean outside of machine