Operation Manual

Operation
Operating Instructions 841 - 00.0 - 09/2014
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over the rear of the hook) or through slot (3) for a whip-stitch buttonhole
(less thread).
4. Cut off the hook thread you have inserted on the opposite side of the
hook using the cutter.
Setting the hook thread tension
1. Turn screw (5) so that the bobbin housing is lowered slowly due to its
own weight while holding the end of the thread steady.
With whip-stitch buttonholes, greater tension is required.
Inserting the bobbin housing upper section
1. Insert the bobbin case with the bobbin.
Important: Make sure the hook (1) engages audibly.
2. Close the hook compartment cover.
Resetting the counter
If you change a bobbin that is not entirely empty, when changing the color
for example, the bobbin counter can be reset to its initial value. This is de-
scribed in the  4.3 Software description, page 18 U-thread menu.
5.5 Changing the needle
CAUTION
Risk of injury from the point of the needle and
moving parts
Change the needle only while the Safe stop key
is pressed.
ATTENTION
Damage to the hook point or needle possible due to incorrect dis-
tance from the hook.
The distance between the hook and the needle only needs to be in-
spected if the new needle has a different size.
After changing the needle size, adjust the hook distance if necessary.
For more information see  Service manual.