Poly-V-Belt InspectionPoly-V-Belt Inspection Periodically inspect the belts based on the damage guide below. If any damage is noted, replace both belts (Fan and Accessory Belts). A precision wear gauge, available from Gates®, is the preferred method of determining belt wear. Poly-V-Belt Inspection Concerns ABRASION CHUNK-OUT IMPROPER INSTALL CRACKING Poly-V-Belt Inspection Concerns PILLING UNEVEN RIB WEAR MISALIGNMENT GRAVEL PENETRATION Parent topic: Routine Preventive Maintenance