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| Check poly V-belt -1- from below with vehicle raised. |
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| Cracks in substructure (cracks, core ruptures, cross sectional breaks) |
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| Layer separation (top layer, cord strands) |
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| Breakage in substructure |
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| Fraying of cord strands |
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| Flank wear (material wear, frayed flanks, flank brittleness -glassy flanks-, surface cracks) |
| t
| Traces of oil and grease |
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