要(yào)注意液(yè)壓升降(jiàng)機氣(qì)蝕和溢流(liú)噪(zào)聲，液(yè)壓升降(jiàng)機作業中要時(shí)刻注意液壓泵和溢流(liú)閥的聲(shēng)音，如(rú)果液壓泵出現(xiàn)“氣(qì)蝕”噪聲(shēng)，經排氣後(hòu)不能(néng)消除，應查明原(yuán)因排除故(gù)障後才能使用。如果(guǒ)液壓(yā)升降(jiàng)機某執行(háng)元件在(zài)沒(méi)有負荷時(shí)動作(zuò)緩慢，并伴(bàn)有溢流閥溢流聲響，應立即停機檢(jiǎn)修。操作手要(yào)保持穩定，因(yīn)為每台設備操縱系(xì)統的自由間隙(xì)都有一定差異(yì)，連接(jiē)部位的磨損程度不同因(yīn)而其間(jiān)隙也不(bú)同，發(fā)動(dòng)機(jī)及液(yè)壓系(xì)統(tǒng)出力的(de)大小(xiǎo)也不(bú)盡相同。
attention should be paid to the hydraulic lift and overflow cavitation noise, hydraulic lift operation should always pay attention to the hydraulic pump and overflow valve sound, if the hydraulic pump "cavitation" noise, the exhaust can not be eliminated, should be identified to cause after troubleshooting. if a hydraulic lift actuator does not move slowly when there is no load, accompanied by overflow valve overflow sound, should immediately stop maintenance. the operator should remain stable, because the free clearance per device control system there are some differences in the degree of wear, the connecting parts of the different so the gap is different, the size of the output of the engine and hydraulic system are not the same. 

隻有使用液(yè)壓升降(jiàng)機的操作手(shǒu)認真摸索(suǒ)，修(xiū)正自己的操(cāo)縱動作(zuò)以适應(yīng)設備的個性，經過長期作業後，才能(néng)養成(chéng)符合(hé)設備個性的良(liáng)好操作習慣。一(yī)般機械行(háng)業堅持定(dìng)人定機制(zhì)度，這(zhè)也(yě)是因素(sù)之一。
only the use of hydraulic lift operator carefully explore, modify their manipulation to adapt to the personality of the device, after long-term operations, in order to develop a good personality in line with the operating habits of

equipment. general machinery industry adhere to the fixed machine system, which is one of the factors.