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❶
❼
❻
0.05 to 0.15 mm
1.0 to 2.0 mm
❸
❺
❾
❽
0.1 to 0.3 mm
2)
Adjust so that a clearance of 1.0 to 2.0 mm is
provided between the top end of moving knife
❸ and that of counter knife ❶ when the moving
knife is in its return end (the moving knife is in
the standby state). Then, fix the moving knife by
tightening screw ❺ .
When the moving knife has reached its back-
ward end, thread trimming cam ❼ is brought to
the position at which a clearance of 0.05 to 0.15
mm is provided between thread trimming roller
❻ and thread trimming cam ❼ .
• Adjusting the knife pressure
Loosen screws ❽ . Adjust the knife pressure by
moving counter knife ❾ up or down.
• Adjusting the position of the bobbin thread
clamp
Loosen screw . Adjust the lateral position of the
clamp arm so that a clearance of 0.1 to 0.3 mm is
provided between the clamp arm and the moving
knife.
– 105 –
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