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修旧利废是补充农机经费不足的有效手段 ,也是延长农机使用寿命的措施之一。几年来宽甸县对几十台４１２５Ａ、４１２５Ｂ、２１２５、４１２５、４１１５等发动机进行了技术改造。技术改造的措施可分为压缩系统的技术改造和改善柴油机燃烧过程两部分 ,现总结经验如下 :１压缩
Renovation of the old waste is to supplement the lack of effective means of agricultural funding, but also to extend the service life of agricultural machinery measures. Over the past few years Kuandian County, dozens of 4125A, 4125B, 2125,4125,4115 and other engines for technological transformation. Technical transformation measures can be divided into technical transformation of compression systems and improve the combustion process of diesel engine two parts, are summarized as follows: 1 compression