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What is to be tested
What to adjust
Normal condition
- Automatic buttonholer
a) Testing and adjustment
I
'H
- PrintS-1230
- Initial state of service operation
(page 17).
- Print Ret-1130
- Select service-programme 5.
-
Bo-
Press button for buttonholing.
- Mount buttonhole foot.
- Lower feed-dog.
-
Lower presser-foot lifter lever.
- Clip the adjusting filter on the presser
foot bar from the right hand side.
Slide it to its highest position until it
V
audibly clicks into place.
With a small screwdriver rotate
potentiometer vauto A ) on print
S 1230 clockwise to its endstop (LED
A does not illuminate). Slowly rotate
the potentiometer in the opposite
a
direction, simultaneously sliding the
acarriage
of the buttonhole foot until
LED A just starts to flash.
no. 000.354.70.01
Potentiometer ((auto B can now be
adjusted in a similar fashion using
LED B.
Note:
In order to allow the foot carriage to be moved easily, two smooth pieces of material should beplaced
between the needle plate and the foot cariage. (Alternatively use knee lever or lifter lever to weaken the
pressure of the material presser bar.)
U,
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