−52 −
6
5
4
1
3
2
Adjustment Procedures Results of Improper Adjustment
™ Too little clearance could
generate abnormal wear of
thread trimmer mechanism,
breakage and falling off of the
parts.
™ Too large clearance could
generate interference of knife
with looper.
Remove hinge screw 4 , remove driving lever 5 , and make
adjustment by turning round the connecting bar 6 .
Loosen the nut 1 , and make adjustment by moving the block 2
along the shaft 3 .
™ Too short stroke disables thread
cutting.
™ Too large stroke disables looper
thread from being clamped.
Shorter stroke
Longer stroke
From the library of: Diamond Needle Corp
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