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| Press the toothed belt firmly with thumb. The groove and the projection -arrow- should move. |
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| Release tension on toothed belt. The tensioning roller should return to its original position (the notch and the lug coincide again). |
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| If the groove and the lug do not coincide, loosen the tensioning roller and adjust the tension on the toothed belt → Chapter, Toothed belt: removing, installing and tensioning. |
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| If the tension on the toothed belt has been changed: |
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| Check and if necessary adjust dynamically the beginning of injection → Chapter, Components and functions: adapting |
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