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J-50拖拉机自1964年试制投产以来一直持续生产了20多年。结构上基本没有大的变动,各林业局对其使用和修理都有较丰富的经验,然而其性能和结构却急待提高和改进。J-50A拖拉机就是在J-50拖拉机基础上经多项改进而设计的新产品。松江拖拉机厂从1985年正式全面投产,现已全部取代了J-50拖拉机。由于各林业局存有一些原J-50拖拉机的配件,在J-50拖拉机大修时将不通用的或不完全通用的原J-50拖拉机配件装在J-50A上,严重影响了拖拉机的性能指标,甚至无法正常使用。为了使用户了解J-50A
The J-50 tractor has been in production for more than 20 years since its trial production in 1964. There are basically no major structural changes. All forestry bureaus have extensive experience in their use and repair. However, their performance and structure are urgently needed to be improved and improved. J-50A tractor is the J-50 tractor based on a number of improvements and design of new products. Songjiang tractor factory formally put into operation in 1985, has now completely replaced the J-50 tractor. Since some of the forestry bureaus have parts for the original J-50 tractor, installing the J-50A tractor parts on the J-50A when the J-50 tractor was overhauled severely impaired the performance of the tractor Indicators, or even unusable. In order to make users understand J-50A