Before installing a replacement belt, confirm four essential dimensional metrics: pitch length, toothed pitch (P1), rib pitch (P2), and rib count. Ensure that the timing pulley profile matches the toothed face (e.g., HTD, RPP, or STS profiles) and the multi-ribbed pulley matches the PK or PL rib contour.ベルトを取り付ける前に、錆びたプーリーやひどく摩耗したプーリーを交換してください。