74式(W4-60型)挖掘机离合器,为弹簧压紧双片干式离合器。其功用是平稳可靠地结合,便于传递动力;迅速彻底地分离,切断动力,以利于机械平稳起步、换档及行驶制动。因此,离合器必须保持良好的工作状态,保证挖掘机的行驶性能,避免各传动部件的早期损伤。挖掘机在行驶中,随道路情况变化,需不断改变行驶速度,则离合器要频繁地分离、结 Type 74 (W4-60) excavator clutch is a spring-loaded two-plate dry clutch. Its function is a combination of smooth and reliable, easy to transfer power; quickly and completely separate, cut off power, in order to facilitate the smooth start of the machinery, shifting and driving brake. Therefore, the clutch must maintain a good working condition to ensure the driving performance of the excavator and avoid the early damage of the transmission components. When the excavator is moving, it needs to constantly change the driving speed as the road conditions change. The clutch must be separated and knotted frequently.