2.4.8 Adjusting the switch actuation point of the needle bars
Caution: Danger of injury !
Switch off the main switch.
Check and adjust the switch actuation point of the needle bars only
with the sewing unit switched off.
Standard checking
The lower end position of the switching latches 3 has to be set in such
a way that the needle bars disconnect safely when moving upwards.
Correction
–
Unscrew the screws 1 and take off the head cover 2.
–
Activate the adjusting program “Checking the needle and center
knife engagement” (see Programming Instructions, chapter 7.3.6)
–
Press key “F5". Turn the handwheel in rotation direction until the
needles engage mechanically.
–
Press key “F5". Turn the handwheel in rotation direction until the
needles disengage.
–
Turn the screws 5 and 6 until the needles disengage safely.
–
Check the adjustment with test program when the machine is
running (see Programming Instructions, chapter 6.3.6).
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