13
9
Trouble shooting(Erroneous thread cut)
7-2-3
Trouble Factor Cause of trouble and measure
Page
Erroneous
Mechanical
11. Check the needle bar moves up and down during thread cut.
thread cut 11-1 Adjust position of jump device.
3-2-5
(E-190)
11-2 Replace needle bar cushion.
3-3-7
(E-193)
11-3 Replace needle bar driver.
3-2-4
12. Is position of keeper proper?
12-1 Adjust the fixed position regularly.
3-6-12
13. Check the movement of keeper goes smoothly.
13-1 Readjust if it is not smooth.
3-6-12
Operator 1. No negligence in cleaning thread cut device?
(23-2)
1-1 Tell to clean regularly.
# It's desirable to prepare brush with soft hair and air gun.
2. Is timing of thread tension proper?
2-1 <Upper thread> Considering sewing finish, set tension.
(8-1)
2-2 <Bobbin thread> Considering upper thread tension, set tension.
(4-5)
Environment
1. Are power and voltage rated and stable?
1-1 Supply rated voltage.
Thread &
1. Is twist of thread too strong?
cloth
1-1 Use thread with proper twist.
2. No skipping by use of lots of paste?
2-1 Use small amount of paste.
2-2 Remove paste stuck to needle.
( ) ---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 ...