8 Pinning Position Of Both Stepping Motors; 9 Stepping Motor Test Stitch Length (Sl) - Bernina activa 125 Service Manual

Test Programmes
Test No. 8 Pinning position of stepping motors (Service Panel)
What is to be tested
Pinning position of step motors
Test No. 9 Stepping motor stitch length (Service Panel)
What is to be tested
Step motors
If the step motor does not rotate
then the fault can lie either with the
step motor or S-print. The faulty
components can be identified by
swapping the connections of the step
motors.
Warning: Disconnect
from the electricity
supply!
What to adjust
Select service programme No. 8.
Note:
Only used when the motors are external.
What to adjust
Select service programme No. 9.
Stitch length bar
blinks
Normal condition
The step motors are activated to the
step position for pinning. «P»
appears on the screen.
Normal condition
The step motor rotates back and
forth, the feed-dog must move to and
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