Happy HCS2-1201-30, Maintenance Manual

Page: 188 / 196

1 80
6-2-11 Trouble shooting (Others / Mechanical)
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?
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.
2-1 Replace of censor circuit board.
Abnormal noise
Mechanical
1. Check whether needle clamp touch needle guard or not.
1-1 Adjust direction of needle clamp. 3-3-6
1-2 Adjust of backward and forward position of thread catch holder. 3-3-13
1-3 In case it has bend of right or left direction, adjust it’s fix.
2. By defect of cover installation. (Pressure foot drive, Carriage etc)
2-1 Take care of insert condition, clearance etc and fix again.
3. By lack of oil inside rotary hook.
3-1 Refuel
(23-1)
3-2 Replace of rotary hook 3-5-1
4. Touching of cap switch bracket on X carriage to cover.
4-1 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.
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