?檢修過(guò)程中對(duì)部分故障設(shè)備采用相應(yīng)的測(cè)試手段 對(duì)于比較嚴(yán)重的故障，例如在維修過(guò)程中對(duì)液壓泵、馬達(dá)、閥、控制芯片等部件進(jìn)行相應(yīng)的測(cè)試是必不可少的在更換新零件時(shí)，要注意盡量使其在最佳工作狀態(tài)下運(yùn)行，這樣才能確保各部件及時(shí)得到更換。
如果只是簡(jiǎn)單的更換磨損件就會(huì)使液壓系統(tǒng)處于超負(fù)荷工作狀態(tài)（如超載),就會(huì)使液壓系統(tǒng)的工作壓力不穩(wěn)定而導(dǎo)致異常動(dòng)作，同時(shí)還會(huì)造成液壓油進(jìn)入油箱和液壓管路中造成嚴(yán)重?fù)p失這樣不僅不利于液壓系統(tǒng)的維護(hù)，而且會(huì)導(dǎo)致重大事故的發(fā)生。
為了確保液壓系統(tǒng)正常的工作性能是一種動(dòng)態(tài)的過(guò)程，就需要在各種惡劣的條件下進(jìn)行維護(hù)并且做到精確控制對(duì)于液壓系統(tǒng)磨損較大時(shí)就需要考慮通過(guò)一些檢查方法來(lái)檢查分析設(shè)備缺陷存在的原因，確定故障部位和故障原因，然后進(jìn)行針對(duì)性地維修。
我們應(yīng)根據(jù)挖掘機(jī)的具體情況采取相應(yīng)的措施：根據(jù)發(fā)動(dòng)機(jī)工作狀態(tài)來(lái)判斷故障是從哪個(gè)環(huán)節(jié)進(jìn)行；結(jié)合機(jī)器工作中存在的問(wèn)題采取相應(yīng)的措施去解決問(wèn)題；通過(guò)測(cè)試來(lái)了解故障情況并能得到正確判斷，從而為最終故障的判斷提供可靠標(biāo)準(zhǔn)。
我們要做好這一工作，把復(fù)雜的情況簡(jiǎn)單化，從而避免對(duì)機(jī)器和維修人員造成損失同時(shí)也給用戶帶來(lái)不必要的麻煩所以我們要在日常的維修過(guò)程中注意以下幾點(diǎn)：對(duì)一些簡(jiǎn)單的故障應(yīng)該通過(guò)常規(guī)技術(shù)檢測(cè)手段進(jìn)行檢查與排除：第一：如果是由機(jī)械零件造成的損壞應(yīng)首先考慮到內(nèi)部零件是否有缺陷；第二，是由于長(zhǎng)期不正確的工作導(dǎo)致零部件發(fā)生損壞；第三則是由于外部原因?qū)е抡麢C(jī)工作突然不正常而導(dǎo)致機(jī)器癱瘓；四是由于長(zhǎng)期不更換液壓油導(dǎo)致內(nèi)部潤(rùn)滑不良；長(zhǎng)期接觸酸性物質(zhì)引起液壓油管破裂等；等等這些原因都有可能會(huì)導(dǎo)致液壓設(shè)備出現(xiàn)故障，這就需要我們對(duì)設(shè)備本身進(jìn)行檢測(cè)以確定是否存在質(zhì)量缺陷和異常狀況，如果有的話則需要對(duì)這些部件進(jìn)行維修并進(jìn)行相應(yīng)的測(cè)試與檢測(cè)才能得出結(jié)論。
這樣做將極大降低了故障發(fā)生后在現(xiàn)場(chǎng)進(jìn)行維修時(shí)所需要的時(shí)間和成本，并且也能夠保證一定程度上不會(huì)對(duì)液壓系統(tǒng)造成任何損傷或影響性能以及避免因?yàn)橐恍┬」收隙绊懺O(shè)備的正常使用，同時(shí)也能大大降低因挖掘機(jī)維修帶來(lái)的成本。
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