Operation
38 Operating Instructions 967 - 02.0 - 11/2016
4.7.2 Setting the hook thread tension
The hook thread tension has been set to 350 to 400 cN at the
factory (1 cN = 1 g).
CAUTION
Risk of injury from moving parts!
Crushing possible.
Switch off the machine before you set the hook
thread tension.
NOTICE
Property damage may occur!
If set incorrectly, the thread pulling direction can result in
faulty tensioning results.
Be sure to pull the hook thread in the proper direction.
NOTICE
Property damage may occur!
If the hook thread tension is set too low, the thread
interlacing will shift from the middle of the sewing material.
This may result in sewing issues and loose stitches when
operating at increased speed.
Set a sufficient hook thread tension or reduce the sewing
speed.
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