1
50
Trouble shooting(Others / Mechanical)
7-2-11
Trouble Factor Cause of trouble and measure
Page
Needle Breakage
Mechanical
1. Check Needle is not bent.
1-1 Replace bent Needle.
3-1-2
2. Check Moving Head set securely.
2-1 Adjust Positioning Roller Shaft.
3-3-2
3. Secure adequate distance between Needle and Rotary Hook.
3-1 Adjust distance properly. 3-5-1
Operator 1. Is thread method in proper way? (4-6)
1-1 Threading again in a proper way. (4-7)
2.
Check upper thread comes in a smooth way. (Thread stand, Thread tension point, double back etc)
2-1 Adjust place be caught in.
3. Check whether fabric is fixed firmly or not.
3-1 Hooping fabric firmly again.
(6-2) (7-5)
Defect of pressure
Mechanical
1. Check whether pressure foot and thread catcher holder touch each other or not.
foot movement
1-1 Adjust installment position of thread catch holder.
3-3-13
1-2 In case pressure foot is fixed at an angle, fix it vertically again.
2. Defect of censor circuit board for Pressure foot.
2-1 Replace of censor circuit board.
Abnormal noise
Mechanical
1. By defect of cover installation. (Pressure foot drive, Carriage etc)
2-1 Take care of insert condition, clearance etc and fix again.
2. By lack of oil inside rotary hook. (23-1)
2-1 Refuel 3-5-1
2-2 Replace of rotary hook
3. Touching of cap switch bracket on X carriage to cover.
3-1 Adjust bend of bracket.
Big noise
Mechanical
1. Gap between pressure foot block and needle bar boss B.
1-1 Replace of pressure foot block.
3-2-13
2. Bearing gap of take up crank ass’y.
2-1 Adjust bearing. 3-2-7
2-2 Replace of bearing.
3. Gap between take up lever ass’y and take up clank ass’y.
3-1 Replace of take up lever ass’y.
3-3-9
3-2 Replace of take up lever crank ass’y
( ) ---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 ...