2.2.3 Change the toothed belt
Caution: Danger of injury !
Switch off main switch.
Change the toothed belt only when the machine is switched off.
Remove toothed belt
–
Take off synchronizer 1.
–
Screw off handwheel 2.
–
Screw off belt protection 3.
–
Loosen screws at the handwheel flange 4.
–
Pull out flange 4 together with the bearing by means of two
screwdrivers.
–
Tilt machine head to the back.
–
Pull off toothed belt 6 from the lower toothed belt wheel.
–
Tilt machine head to the front again.
–
Pull toothed belt 6 out through the opening 5.
Mount toothed belt
–
Reinsert toothed belt in reverse order.
ATTENTION: Danger of breakage !
After changing or removing the toothed belt check the following:
Hook adjustment (see chapter 2.5), feeding motion of the feed-dog
(see chapter 2.3.3) and lifting motion of the feed-dog
(see chapter 2.3.4).
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