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【農(nóng)機(jī)小課堂】冬季拖拉機(jī)保養(yǎng)要點(diǎn)

2021-12-17 16:16:26 來源:農(nóng)機(jī)網(wǎng)整理發(fā)布 閱讀量:41085 評論

導(dǎo)讀: 入冬前,要對拖拉機(jī)各部位進(jìn)行除垢、清洗、調(diào)整和潤滑,氣門間隙過大過小、噴油壓力不夠、供油時(shí)間過晚都會(huì)造成發(fā)動(dòng)機(jī)啟動(dòng)困難

  【農(nóng)機(jī)網(wǎng) 熱點(diǎn)關(guān)注】 冬季氣溫低,尤其是北方地區(qū)降雪寒冷,拖拉機(jī)如果不能正確存放、保養(yǎng),再次使用時(shí)故障率會(huì)增加。做好拖拉機(jī)日常保養(yǎng)工作是使用拖拉機(jī)的一項(xiàng)重要措施,及時(shí)保養(yǎng)是拖拉機(jī)順利開展作業(yè)得前提條件
 
  入冬前,要對拖拉機(jī)各部位進(jìn)行除垢、清洗、調(diào)整和潤滑,氣門間隙過大過小、噴油壓力不夠、供油時(shí)間過晚都會(huì)造成發(fā)動(dòng)機(jī)啟動(dòng)困難。此外,還要對離合器、制動(dòng)器和操縱機(jī)構(gòu)進(jìn)行調(diào)整,確保拖拉機(jī)處于良好的技術(shù)狀態(tài),為過冬打下良好的基礎(chǔ)。
 
  1、存放。有車庫是最好的,如果沒有,拖拉機(jī)要停在避風(fēng)處,加裝保溫被等。冷啟動(dòng)時(shí),解除或切斷發(fā)動(dòng)機(jī)與其他工作機(jī)件負(fù)荷,預(yù)熱油底殼機(jī)油,有的還需要預(yù)熱變速箱或后橋。啟動(dòng)時(shí)視情況可以踩下離合器啟動(dòng),解除變速箱阻力。
 
  2、電瓶。如果停駛時(shí)間長,電瓶應(yīng)拆卸,入庫保溫。一般蓄電池的使用壽命是三年,入冬時(shí),最好提前更換,以防誤事。
 
  3、冷卻水。未加防凍液的拖拉機(jī),氣溫在4℃及其以下時(shí),夜間停車和長時(shí)間熄火停放時(shí),都應(yīng)將發(fā)動(dòng)機(jī)內(nèi)冷卻水放盡。在放冷卻水時(shí),要待水溫降到60℃以下時(shí)再放水,否則,容易造成機(jī)體或缸蓋等損壞。
 
  4、機(jī)油、柴油的選擇。 拖拉機(jī)使用的柴油牌號根據(jù)當(dāng)?shù)貧鉁囟ǎ阂话阕畹蜌鉁卦?至-5℃,則選用-10號柴油;最低氣溫在-10至-15℃,選用-20號柴油;當(dāng)最低氣溫不低于-30℃,選用-35號柴油;當(dāng)最低氣溫在-40℃左右的高寒區(qū),應(yīng)當(dāng)選用-50號柴油。發(fā)動(dòng)機(jī)冬季使用的機(jī)油粘度大,給潤滑和啟動(dòng)帶來困難,所以應(yīng)換上8號柴油機(jī)油;變速箱和后橋內(nèi)潤滑油,應(yīng)換上11號柴油機(jī)油,或者換上20號齒輪油。
 
  5、預(yù)熱。嚴(yán)寒季節(jié),拖拉機(jī)經(jīng)常會(huì)啟動(dòng)困難,因此,啟動(dòng)前要預(yù)熱。首先用80~90℃左右的熱水預(yù)熱機(jī)體。第一次不能用太熱的水,以免機(jī)體、缸蓋等部位正冷驟然遇高溫而被炸裂。加水時(shí),打開放水開關(guān),采用邊加熱水邊放水的方法,直到機(jī)體放水閥流出溫水為止,關(guān)上放水閥,加滿開水。氣溫特別寒冷時(shí),還要對機(jī)油進(jìn)行預(yù)熱。把停車時(shí)放出的油底殼內(nèi)的機(jī)油盛在容器內(nèi)用熱水加溫后再注入油底殼,并搖轉(zhuǎn)曲軸數(shù)十圈,使各部分得到潤滑后再啟動(dòng)。嚴(yán)禁用明火烘烤發(fā)動(dòng)機(jī)。
 
  此外,還應(yīng)定期檢查機(jī)車。每月檢查拖拉機(jī)及零部件有無銹蝕、腐蝕、老化、變形等異?,F(xiàn)象,發(fā)現(xiàn)問題應(yīng)及時(shí)排除;每兩個(gè)月應(yīng)轉(zhuǎn)動(dòng)發(fā)動(dòng)機(jī)曲軸 10~15 轉(zhuǎn),以防止內(nèi)部銹蝕。在需加注潤滑脂的潤滑部位,清除舊的潤滑脂,更換新的潤滑脂;每三個(gè)月應(yīng)將拖拉機(jī)啟動(dòng)低速行駛 20~30分鐘,檢查各部位有無不正常的現(xiàn)象;定期用干布擦拭蓄電池頂面灰塵,蓄電池即使不使用也會(huì)自行放電,根據(jù)蓄電池上指示燈情況,需充電時(shí)必須充電。
 
  本文由農(nóng)機(jī)網(wǎng)(dwjfsy.com)整理發(fā)布,資料來源:阿克蘇地區(qū)農(nóng)業(yè)技術(shù)推廣中心農(nóng)機(jī)站、中國一拖、封疆智能。
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