要注意液壓升降機(jī)氣蝕和溢流噪聲，液壓升降機(jī)作業(yè)中要時(shí)刻注意液壓泵和溢流閥的聲音，如果液壓泵出現(xiàn)“氣蝕”噪聲，經(jīng)排氣后不能消除，應(yīng)查明原因排除故障后才能使用。如果液壓升降機(jī)某執(zhí)行元件在沒有負(fù)荷時(shí)動(dòng)作緩慢，并伴有溢流閥溢流聲響，應(yīng)立即停機(jī)檢修。操作手要保持穩(wěn)定，因?yàn)槊颗_(tái)設(shè)備操縱系統(tǒng)的自由間隙都有一定差異，連接部位的磨損程度不同因而其間隙也不同，發(fā)動(dòng)機(jī)及液壓系統(tǒng)出力的大小也不盡相同。
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. 

只有使用液壓升降機(jī)的操作手認(rèn)真摸索，修正自己的操縱動(dòng)作以適應(yīng)設(shè)備的個(gè)性，經(jīng)過長(zhǎng)期作業(yè)后，才能養(yǎng)成符合設(shè)備個(gè)性的良好操作習(xí)慣。一般機(jī)械行業(yè)堅(jiān)持定人定機(jī)制度，這也是因素之一。
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.