300.9D and 300.9D VPS Mini Hydraulic Excavator Caterpillar


Belt - Inspect

Usage:

300.9D DW2


注意事項

V 型皮帶必須正確張緊。 無法正確張緊皮帶可能會損壞皮帶和/或皮帶導件,或損壞水泵軸承。

請不要讓皮帶與任何外物接觸,如機油或潤滑脂,因為可能會損壞 V 型皮帶。


若要獲得最佳的引擎效能並完全利用引擎,請檢查皮帶是否有磨損或裂紋的情形。 檢查皮帶張力。 調整皮帶張力來將皮帶滑移減至最低。 皮帶鬆弛會減少皮帶壽命。 皮帶打滑也會導致交流發電機和所有驅動設備性能不佳。

如果安裝新的皮帶,請在操作 5 分鐘後重新檢查皮帶調整情形。 如果某應用需要使用兩條或更多皮帶,請以皮帶組更換皮帶。 如果只更換一對皮帶,新皮帶就需承受較多負載。 這是因為舊皮帶已拉長。 新皮帶承受的額外負載,可能會造成新皮帶斷裂。



    插圖 1g02460819

  1. 打開引擎蓋。

  2. 在滑輪中間施加約 100 N (22 lb) 的力。

  3. 測量皮帶的撓曲。 皮帶應彎曲 6 至 8 mm (4/16 至 5/16")

  4. 如果撓曲不正確,請鬆開交流發電機安裝螺栓 (3) 和調整螺栓 (2)。 將交流發電機前後移動,以便將皮帶 (1) 調整到指定張力。

  5. 調整正確後,牢牢地擰緊調整螺栓 (2) 和安裝螺栓 (3)。

  6. 再次檢查皮帶的撓曲。

  7. 蓋上引擎蓋。

附註若安裝新皮帶,請在引擎以額定轉速運轉 5 分鐘後,再次檢查皮帶調整情形。

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