Happy HCS2-1201-30, Maintenance Manual

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3
Index
page
For safe adjustment and repair 2
Index
3
Special tool, Measuring equipment, Other 8
1 Outline of mechanism
1-1 Placement of key mechanical parts 12
1-2 Placement of key electronic parts 14
2 Outer covers
2-1 Removal of outer covers 15
3 Mechanical mechanism
3-1 Basic maintenance
3-1-1 Maintenance of thread path
19
3-1-2 Fixing of needle 21
3-1-3 Selection of thread 22
3-1-4 Relation between needle and upper thread 23
3-2 Fixed head
3-2-1 Exchange of crank 24
3-2-2 Exchange of rod 28
3-2-3 Adjustment of the lowest needle point 29
3-2-4 Exchange of needle bar driver 30
3-2-5 Adjustment of fixing of jump solenoid 32
3-2-6 Exchange of take-up lever cam 34
3-2-7 Exchange of roller shaft ass’y 36
3-2-8 Adjustment of take-up lever timing
37
3-2-9 Exchange of pressure foot cam 38
3-2-10 Check of height of pressure foot 39
3-2-11 Exchange of pressure foot 40
3-2-12 Adjustment of height of pressure foot guide bar 41
3-2-13 Exchange of pressure foot link and block 42
3-2-14 Exchange of pressure foot drive lever 43
3-2-15 Exchange of pressure foot guide 46
3-2-16 Exchange of pulse motor for pressure foot 48
3-2-17 Adjustment of pressure foot bracket ass’y 50
3-2-18 Exchange of thread catcher 51