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冬季寒冷天氣下該如何保養農機?

2021-01-12 09:10:24 來源:農機網整理發布 閱讀量:31231 評論

  【農機網 地方農機】 一到冬季,農作物進入“休眠”狀態,農機也進入了閑置狀態,一些農機手對于農機的保養不夠重視,認為隨便保養保養就可以了。但其實不是的,農機的保養跟不上,會給農戶造成不必要的損失。那么寒冷的冬季該如何保養和防護農機以便來年更好地投入農業生產?
 
  入冬前要對農機的各個部位進行除垢、清洗、調整、潤滑,氣門間隙、噴油壓力及噴油提前角等技術指標要注意調整到規定的范圍,對離合器、制動器和操縱機構進行全面調整,確保拖拉機處于良好的狀態,為過冬打下安全的基礎。
 

  除此之外還應注意以下幾點:
 
  一、加強機體保溫
 
  1、拖拉機和其他農業機械應盡量停放在車庫內,防止被雨雪侵蝕和冰凍。
 
  2、檢查車輛水箱,查看防凍液抗低溫型號,不符合低溫要求的及時更換,防凍液不足的及時補充,未使用防凍液的將水箱放空。
 
  二、防止凍裂機件
 
  1、注意不能滿負荷大油門作業,不能突然熄火和立即放水,防止機體因驟冷而開裂。放水時要打開水箱蓋和所有的放水開關,務必放凈。
 
  2、適當增大蓄電池電解液的比重(達到1.28—1.31),用補充充電的方法讓蓄電池保持電量充足的狀態,使蓄電池不致因低溫而過多喪失電容量和凍裂蓄電池殼。
 
  三、及時更換冬季用油
 
  1、如需要使用柴油農機,可以選用凝固點低、流動性好的-10號、-20號輕柴油。
 
  2、對于潤滑油,應在清洗潤滑系的基礎上,換用黏度較小冬用潤滑油,或者使用稠化機油,改善發動機的低溫啟動性能。
 
  四、注意駕駛陋習
 
  不注重駕駛方法,違規操作。如一些農機手在熄火前亂轟油門, 以為能在氣缸內存些柴油,便于下次易啟動。其實,這樣做只會造成柴油在氣缸內不能完全燃燒而造成積碳,并可能順著缸壁流入油底殼稀釋機油,不但對下次啟動絲毫無益,而且還影響機油的潤滑性能,得不償失。還有的不及時添加柴油,冬季熄火前應向拖拉機油箱內加滿柴油。否則,空箱內空氣中的水蒸汽遇箱壁冷卻后液化凝結成水珠,混入柴油內,導致發動機無法正常工作。
 
  五、設施大棚防止大雪壓塌
 
  1、對大棚進行加固。沿大(中)棚棚架縱向中軸線每隔2-3米用一根毛竹等支撐物對棚頂進行支撐加固,提高大棚棚架的抗壓性,防止雪壓倒棚。
 
  3、及時清除棚頂積雪。下雪時應及時上好草苫或保溫被,草苫或保溫被上面用防寒膜覆蓋,把緩沖室門關緊關嚴,以防冷風進入。
 
  4、在棚頂積雪無法清除時(特別是連棟大棚),采用破膜保架的特殊應急措施,放棄棚內種植作物,全力保護棚架,盡量降低損失。棚架上有外遮蔭設備的,要收起收緊外遮蔭上的遮陽網,防止雪壓毀壞。
 
  5、對溫室內種植的瓜類、果菜類及喜光、喜溫性強的蔬菜有條件的農戶可采取棚內安裝補光燈、熱風爐或電暖氣等,以增加光照提高溫度。
 
  本文由農機網(www.goodqmj.com)整理發布,部分資料來源:紹興市農業農村局,如有侵權或異議請聯系我們。
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