3.2 Changing the toothed belt
Caution: Danger of injury !
Switch off the main switch.
Change the toothed belt only with the sewing unit switched off.
For an easier exchange the toothed belt 3 is divided. It is held together
by the belt clamp 4.
Removing the old toothed belt
–
Unscrew screws 1 and remove the c overing cap 2.
–
Loosen the screws 9 (4x) and
–
Loosen the clamping screws of the toothed belt clamp 4.
–
Pull the toothed belt 3 out of the casing.
Putting in a new toothed belt
(piece goods, minimum length 1.45 m)
–
Loosen the counternut at the clamp bolt 7 and turn back the
tension pulley 5.
–
Lay one end of the toothed belt on the toothed belt wheel of step
motor 5 and pull it until the end reaches the toothed belt clamp 4.
–
Lay the other end of the toothed belt around the tension pulley 5
and guide it to the toothed belt clamp 4.
–
Connect both belt ends with the toothed belt clamp 4.
–
Adjust the toothed belt tension (see chapter 3.3).
58
121
3
10 9
54 3
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