The generator belt should be replaced when the following conditions occur:
1. When we inspect the belt, if we find any defects such as core breakage and groove section cracking, we must replace it immediately;
2. When the covering layer of the belt is separated from the cord, or the cord is loose, we need to replace the belt;
3. When the belt is placed on the pulley, there should be a gap between the inner diameter of the belt and the bottom of the pulley groove. If there is no gap, we also need to replace the belt.
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