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Troubles Cause (1) Cause (2) Checking orders and corrective measures
From the previous page
Thread trimmer control plate fails to work.
Timing belt slips.
Moving knife fixed position is improper.
Thread trimmer works at the start of next
sewing after thread trimming.
Installing position is improper.
Tension of timing belt is low.
Knife pressure is too high.
Thread is not trimmed.
Cam roller is not removed from the groove
in thread trimmer cam in the resting section.
Adjust the position referring to the item (3-14).
Replace the timing belt.
Adjust the engagement of counter knife and moving knife.
Consider to correct the counter knife.
Adjust the position referring to the item (3-6). (Amount of recession
of the moving knife)
Adjust the position referring to the item (3-7). (Engagement of
the counter knife)
Properly adjust the relation of the positions of cam groove and
roller.
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