HappyJapan HCH-701-30, Maintenance Manual

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4
Index
page
3-2-18 Exchange of thread catcher 48
3-2-21 Adjustment of bobbin winder 50
3-3 Moving head
3-3-1 Assemble the
upper rail of
moving head 52
3-3-2 Adjustment of backlash (back and forth) of moving head 53
3-3-3 Assemble the moving head 54
3-3-4 Adjustment of needle position (back and forth) 58
3-3-5 Check of needle position 59
3-3-6 Adjustment of needle height 60
3-3-7 Exchange of needle bar and needle bar spring 62
3-3-8 Fixing of needle bar boss guide plate 64
3-3-9 Exchange of take-up lever 66
3-3-10 Exchange of thread adjusting spring 67
3-3-11 Adjustment of tension of thread adjusting spring 68
3-3-13 Adjustment of thread holder 69
3-3-14 Exchange of majic-tape on thread holder 71
3-4 Needle bar change unit
3-4-1 Fixing of needle bar change unit 72
3-5 Rotary hook
3-5-1 Adjustment of rotary hook timing 74
3-5-2 Adjustment of retainer on rotary hook 76
3-6 Thread cut unit
3-6-1 Assemble the arm ass’y
77
3-6-2 Exchange of pulse motor for thread cutting driver 79
3-6-6 Exchange of moving knife 82
3-6-7 Exchange of fixed knife 83
3-6-8 Adjustment of moving knife and fixed knife 84
3-6-9 Adjustment of position of moving knife 85
3-6-10 Adjustment of bobbin thread holder 87
3-6-11 Exchange of keeper solenoid 88
3-6-12 Adjustment of position of keeper 89