在铝合金升降机发动机怠速及怠速不稳时会出现啪啪的响声，且随发动机转速升高而加重，但在发动机稳定的中速运转时，对于双片式升降台离合器，则可能是主动盘传动凸块与传动槽或传动销与销孔磨损松旷，在铝合金升降机离合器分离或发动机怠速不稳时，主动盘周向摆动而产生异响;对于单片式升降台离合器，则为压盘与升降台离合器盖配合松旷所致。
Will be in the aluminum alloy elevator engine idle speed and idle speed instability of pops the sound, and with the engine speed increased and aggravated, but in stable engine speed operation, for two chip lifting platform clutch may is the active disk drive convex block and transmission groove or a drive pin and the pin hole wear Songkuang, in aluminum alloy lift the clutch or the engine idle speed instability, week of the driving disc to swing and abnormal sound; for monolithic lifting platform clutch, pressure plate and the lifting table clutch cover with looseness caused by. 

拆下铝合金升降机离合器壳上的检视口盖板或底盖，将铝合金升降机离合器踏板踩到底，用旋具拨动中间主动盘和压盘进行检查。若径向间隙过大，说明配合松旷，应更换。如果铝合金升降机离合器没有分离不彻底或打滑现象，可继续使用。
Open aluminum alloy elevator clutch shell view port cover or bottom cover, aluminum lift the clutch pedal foot in the end, by spin with toggle between active plate and pressure plate are examined. If the radial clearance is too large,that with Songkuang, should be replaced. If the aluminum alloy elevator clutch does not separate from the incomplete or slipping phenomenon, can continue to use.