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春耕開啟，拖拉機(jī)進(jìn)入農(nóng)忙，該如何保養(yǎng)維護(hù)？

2021-03-22 16:18:48 來(lái)源：農(nóng)機(jī)網(wǎng)整理發(fā)布 閱讀量：40528 評(píng)論

　　【農(nóng)機(jī)網(wǎng) 地方農(nóng)機(jī)】 一年之計(jì)在于春。當(dāng)前，全國(guó)大部分地區(qū)已經(jīng)進(jìn)入春耕階段，而拖拉機(jī)作為使用頻率較高的基礎(chǔ)性農(nóng)機(jī)裝備，經(jīng)過(guò)一冬天的“休眠”，春耕開啟后便進(jìn)入了農(nóng)忙階段。那么拖拉機(jī)在春季使用前和使用中該注意哪些問題？
 
　　春季溫度剛剛回升，農(nóng)機(jī)金屬部件脆性較強(qiáng)，農(nóng)機(jī)潤(rùn)滑系統(tǒng)一定要按規(guī)定標(biāo)準(zhǔn)保養(yǎng)。在使用前要全面清理，做好潤(rùn)滑、調(diào)整、緊固等項(xiàng)工作，避免冬天農(nóng)機(jī)長(zhǎng)時(shí)間閑置帶來(lái)的不同零部件間出現(xiàn)的松動(dòng)和澀滯，以確保機(jī)具以良好的技術(shù)狀態(tài)投入作業(yè)。
 

　　作業(yè)前磨合：
 
　　1.發(fā)動(dòng)機(jī)空轉(zhuǎn)磨合
 
　　按說(shuō)明書規(guī)定的順序啟動(dòng)發(fā)動(dòng)機(jī)，使發(fā)動(dòng)機(jī)按照低速、中速、高速的順序，即由小油門、中油門、大油門，依次各運(yùn)行5分鐘。在發(fā)動(dòng)機(jī)空轉(zhuǎn)磨合過(guò)程中，應(yīng)仔細(xì)檢查發(fā)動(dòng)機(jī)、空氣壓縮機(jī)、液壓油泵的工作狀況，觀察有無(wú)異常現(xiàn)象及聲響，檢查有無(wú)漏水、漏油和漏氣現(xiàn)象，儀表是否正常工作。當(dāng)發(fā)現(xiàn)有不正常現(xiàn)象，應(yīng)立即停車，排除故障后重新進(jìn)行磨合。
 
　　2.動(dòng)力輸出軸空載磨合
 
　　將發(fā)動(dòng)機(jī)油門操縱手柄置于中油門位置，發(fā)動(dòng)機(jī)以中速運(yùn)轉(zhuǎn)，分別使動(dòng)力輸出軸以低速、高速各運(yùn)轉(zhuǎn)5分鐘，檢查有無(wú)異常現(xiàn)象。磨合后須使動(dòng)力輸出軸處于空擋位置。
 
　　3.拖拉機(jī)空駛及負(fù)荷磨合
 
　　當(dāng)發(fā)動(dòng)機(jī)空轉(zhuǎn)磨合，動(dòng)力輸出軸及液壓系統(tǒng)磨合后，確認(rèn)拖拉機(jī)的技術(shù)狀態(tài)正常時(shí)，方可進(jìn)行整機(jī)磨合，其磨合順序和時(shí)間按說(shuō)明書中的規(guī)定進(jìn)行，總計(jì)磨合60小時(shí)。當(dāng)空駛磨合時(shí)，應(yīng)在低速下進(jìn)行轉(zhuǎn)彎操作并適當(dāng)使用單邊制動(dòng)器，在高速下試驗(yàn)緊急制動(dòng)。空駛磨合后，在拖拉機(jī)技術(shù)狀態(tài)完全正常時(shí)方可進(jìn)行負(fù)荷磨合，負(fù)荷磨合時(shí)負(fù)荷必須由小到大、擋位由低到高，逐擋進(jìn)行。
 
　　4.液壓系統(tǒng)磨合
 
　　啟動(dòng)發(fā)動(dòng)機(jī)，將油門放在中油門位置運(yùn)轉(zhuǎn)，操縱分配器手柄，升降懸掛機(jī)構(gòu)數(shù)次，觀察有無(wú)異常現(xiàn)象。然后在懸掛機(jī)構(gòu)掛上質(zhì)量約500——800千克重物或質(zhì)量相當(dāng)?shù)霓r(nóng)具，使發(fā)動(dòng)機(jī)在大油門位置下運(yùn)轉(zhuǎn)，操縱分配器手柄，使懸掛機(jī)構(gòu)能全行程上升與下降，反復(fù)不少于20次。檢查液壓懸掛機(jī)構(gòu)能否固定在高位置或所需位置、升降時(shí)間及有無(wú)滲漏現(xiàn)象。在拖拉機(jī)靜止情況下，發(fā)動(dòng)機(jī)以低、中、高速運(yùn)轉(zhuǎn)，平穩(wěn)地向左及向右操縱方向盤各10次，觀察拖拉機(jī)左右轉(zhuǎn)向情況，聲音是否正常，操縱方向盤是否輕便、平穩(wěn)。磨合過(guò)程中若發(fā)現(xiàn)故障，應(yīng)及時(shí)分析原因并排除。
 
　　拖拉機(jī)作業(yè)結(jié)束，應(yīng)停放于避風(fēng)保暖的屋棚內(nèi)。如果露天放置，應(yīng)把蓄電池拆下，以防蓄電池被忽冷的氣溫凍壞。
 
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