JUKI HZL-30Z Sewing Machine service manual

[1] PRODUCT SPECIFICATIONS FOR HZL-30Z ································ 1
[2] NAMES OF THE RESPECTIVE COMPONENTS ·························· 2
[3] HOW TO REMOVE THE OUTER COMPONENTS ······················· 3
[4] ADJUSTMENT OF THE RESPECTIVE COMPONENTS ·············· 7
WARNING :
When disassembling, assembling or adjusting the sewing machine, remove the
power plug.
When assembling, be careful about the electrical cord being caught with other
components, damage to the covered parts of the cord or miswiring.
When replacing the part(s), use the genuine part(s).
To avoid the risk of fire, electric shock, injury to persons or damage to
components, especially keep the following:
4-1 Adjusting the needle bar height ························································· 7
4-2 Adjusting the zigzag width needle entry position ···························· 7
4-3 Adjustment of the straight stitch lock ··············································· 8
4-4 Needle throw ······················································································· 9
4-5 Feed dog height ················································································ 10
4-6 Timing belt ························································································· 10
4-7 Feed timing ························································································ 11
4-8 Needle-to-hook timing ······································································ 11
4-9 Clearance between the needle and the blade point of the hook ·· 12
4-10 Position of the bobbin case stopper plate ······································ 12
4-11 Adjusting the bobbin thread tension ··············································· 13
4-12 Opening amount of the tension disk ··············································· 13
4-13 Adjusting the needle thread tension ··············································· 14
4-14 Tension knob ····················································································· 14
4-15 Vertical position of the threader hook ············································ 15
4-16 Reverse stitch ··················································································· 15
4-17 Super stitch pattern ·········································································· 16
4-18 Height and position of the presser foot ·········································· 16
4-19 Button hole ························································································· 17
4-20 Motor belt tension ············································································· 17

20 pages