13.6 Flap turning device (working method F)
Working method F consists of working method B and flap turning
device.
Caution: Danger of injury !
Switch off the main switch.
Disconnect the sewing unit from the pneumatic supply system.
Check and adjust the flap turning device only with the sewing unit
switched off.
13.6.1 Exchanging the toothed belt
Removing the toothed belt 3
Loosen and unscrew the clamping nut 1.
Loosen the clamping screw 2.
Pull out the axle of the toothed belt wheel completely. Slip off the
toothed belt 3 and take it off from the toothed belt wheel 4.
Putting on a new toothed belt 3
Place the toothed belt on the toothed belt wheel 4.
Turn the cylinder clockwise until the value of 63° is reached.
Place the toothed belt 3 on the other toothed belt wheel in such a
way that the screws 7 point to the right in horizontal direction and
downward in vertical direction.
Insert the complete axle of the toothed belt wheel.
Tighten the clamping nut 1 (adjust lateral clearance).
Tighten the clamping screw 2.
118
432 1
7
63
o
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