Operation Manual

Operation
38 Operating Manual 967 version 00.0 - 11/2013
5.7.2 Setting hook thread tension
Fig. 20: Setting hook thread tension
Risk of injury from moving parts.
Turn off the machine before tensioning the hook
thread.
WARNING
Pulling the thread in the wrong direction while measuring
tension can result in incorrect tension measurement
results.
Be sure to pull the thread in the proper direction.
ATTENTION
If the needle thread tension is too low, the tension of the
hook thread will also be too low. At higher sewing speeds,
the needle thread will not be pulled properly and will get
stuck in the hook. This manifests itself through increased
noise and can result in damage to the machine.
Set the lower tension properly or reduce sewing speed.
ATTENTION
(1) – Bobbin housing
(2) – Adjustment screw
(3) – Hook thread
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