12 Start/Stop Function; 13 Testing Both Stepping Motors (Sl And Sb) - Bernina activa 125 Service Manual

Test Programmes
Test No.12 Start/Stop function (Service Panel)
Factory use only
What is to be tested
Permanent test of the machine
Test No.13 Stepping motors and S-print (Service Panel)
What is to be tested
Stepping motors and S-print
Stitch width bar blinks
If the stepping motors do not rotate
then the fault can lie either with the
stepping motors or S-print. The faulty
components can be identified by
swapping the connections of the
stepping motors.
Warning: Disconnect
from the electricity
supply!
What to adjust
Select service programme No. 12.
What to adjust
Select service programme No. 13.
Stitch length bar
blinks
Normal condition
Press the foot control.
The machine will start and stop at
a 7 second interval.
Normal condition
The stepping motors rotate back and
forth, the feed-dog and needle bar
must move to and fro.
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