1
35
Trouble shooting(Thread break)
7-2-2
Trouble Factor Cause of trouble and measure Page
Thread break
Mechanical
24. Check tip of keeper hit the bobbin case.
24-1 Adjust it regularly. 3-6-12
25. ls take-up lever timing proper ?
25-1 Adjust as specified.
3-2-8
26. No problem in timing belt?
26-1 Adjust tension.
3-8-1
26-2 If scratched or damaged, replace it.
3-8-2
27. No problem in motor belt?
27-1 Adjust tension.
3-8-3
27-2 If scratched or damaged, replace it.
3-8-4
28. Is revolution setting proper?
(25-2)
28-1 Make automatic speed setting.
5-4-1
Operator 1. Operation is wrong (no proper [create] setting for sewing?)
1-1 Tell how to operate.
(15-1)
2.Is pattern dwindled too much by pattern adjustment?
2-1 Adjust size so as to produce less thread break.
2-2 Use pattern edited again (density_ change).
3. Is thread tension properly set?
3-1 <Upper thread> Considering sewing finish, set tension.
(8-1)
3-2 <Bobbin thread> Considering upper thread tension, set tension.
(4-5)
5. Is bobbin put in bobbin case properly?
5-1 Viewing from front of bobbin case, set so that bobbin turns left-wise.
(4-5)
6. Does thread cone stand properly?
(4-6)
6-1 Keep thread from hitting felt.
6-2 Stand vertically.
7. Is passing of thread proper?
7-1 Pass thread properly.
(4-7)
8. Is cloth properly stretched? (6-2) (7-5)
8-1 No loosening and no too much tightening. Even tension in depth and width.
8-2 Texture should be even in direction of X and Y.
9. Is frame properly set?
(6-3) (7-6)
9-1 Frame should be put in positioning hole on tubular-frame.
9-2 No loosening of screw.
( ) ---Reference instruction book
Summary of Contents for HCH-701-30
Page 1: ...Maintenance Manual for Embroidery Machine HCH 701 30 Version 2 4 HappyJapan Inc ...
Page 132: ...128 Electrical connection diagram 5 ...
Page 133: ...129 Electrical connection diagrams 5 ...
Page 134: ...130 List of electrical connection diagrams 5 ...
Page 137: ...130c HCD81222 LCD CE MX 基板組 ...
Page 138: ...130d HCD8116 TP switch board ass y 3 82 7 32 7 387487 2487 ...