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3.
Hook, looping stroke and needle bar height
3.1 Driver shaft
4
3
2
1
Caution: Danger of injury!
Switch off main switch.
Check and adjust driver shaft only when the button sewing
automat is switched off.
Standard checking
The driver shaft 4 should have no axial backlash, but it must not move
too heavy.
–
Check the driver shaft 4 with regard to axial backlash and rough
running.
Correction
–
Unscrew screws 5 and 7 and take off oil felt 6.
–
Loosen screws 9 (4 pieces) at the motor and pull off the motor 8.
–
Loosen screws at the adjusting rings 2 and 3.
–
Press driver shaft 4 with toothed wheel 1 completely in the
direction of the needle bar.
–
Press adjusting rings 2 and 3 against the bush and tighten screws.
–
Check whether the shaft is without clearance and runs smoothly.
–
Insert motor 8 and screw tight.
–
Tighten oil felt 6 with the two screws 5 and 6.
9
8
7
6
5
3
17
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