Changing The Toothed Belt - Duerkopp Adler 745-34 Service Instructions Manual

3.3

Changing the toothed belt

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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 7 and take off the covering cap 6.
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Loosen the clamping screws of the toothed belt clamp 4.
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Pull the toothed belt out of the casing.
Putting in a new toothed belt
(piece goods, minimum length 1.47 m)
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Loosen the counternut at the clamp bolt 9 and turn back the
tension pulley 8.
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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 8
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 3.2).
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