1
44
Trouble shooting(Upper thread remains)
7-2-6
Trouble Factor Cause of trouble and measure
Page
Upper thread
Mechanical
1.
Upper thread is difficult to come out of keeper at time of thread cut (bent or warp etc.).
remains 1-1 Modify bent or warp.
1-2 Replace keeper.
2. Keeper doesn't return properly at time of thread cut.
2-1 Modify bent of keeper.
2-2 Adjust position to fix.
3-6-12
2-3 Adjust it again if movement is not smooth.
3. Upper thread does not come off from magic tape of thread holder.
3-1 Insert something(Thickness 0.1-0.2mm) into holder then move it right and
left to put magic tape in order.
3-2 Replacement of magic tape. 3-3-14
4. Doesn't thread catch hook cut upper thread?
4-1 Polish burr on hook.
4-2 In case hook is in trouble, replace.
Operator 1. Setting of thread tension is weak.
(4-5) (8-1)
1-1 Strengthen so as not to cause trouble in sewing rhythm.
2. Is [create] properly set?
(15-1)
2-1 Select length of upper thread [standard].
Thread &
1. Using hard cloth make thread difficult to go through.
cloth 1-1 Select needle and thread.
3-1-4
2. Using thick cloth make thread difficult to go through.
2-1 Select needle and thread.
3-1-4
3. Is thread used to suit embroidery? (thread twist, tender thread).
3-1-3
3-1 Don't use too strongly twisted thread. (4-2)
3-2 Twist of thread is to be left-wise.
3-3 Use tender thread.
3-4 Don't use thread with knot or uneven size.
( ) ---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 ...
