NY/T 505-2002
AbolishedRepairing technical specifications for agricultural vehicles
农用运输车修理技术条件
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 修理技术要求 Foreword → 1 Scope → 2 Normative References → 3 Repair Technical Requirements
Scope
This standard specifies the repair technical requirements, inspection rules, and warranty conditions for main components, assemblies, and complete agricultural vehicles. This standard applies to the repair quality assessment of main components, assemblies, and complete agricultural vehicles.
本标准规定了农用运输车主要零部件,总成及整车的修理技术要求,检验规则和保用条件等。本标准适用于农用运输车主要零部件,总成及整车的修理质量评定
Normative References
Keywords
Application Summary AI generated
Repair shops and inspection stations for agricultural vehicles use this standard to evaluate repair quality. It helps technicians ensure that key components like engines and transmissions meet safety and technical requirements after repair. This standard is crucial for ensuring the reliability and road safety of agricultural vehicles.
农用运输车的维修厂和检测站使用本标准来评估修理质量。它帮助技术人员确保发动机、变速箱等关键部件在修理后符合安全和技术要求。该标准对保障农用运输车的可靠性和道路安全至关重要。
AI Summary AI generated
This standard specifies repair technical requirements, inspection rules, and warranty conditions for main components, assemblies, and complete agricultural vehicles. It covers specific parameters such as fit clearances, tightening torques, and starting performance for key parts like engines, transmissions, and drive axles. It is used for repair quality assessment to ensure safe and reliable vehicle operation after repair.
本标准规定了农用运输车主要零部件、总成及整车的修理技术要求、检验规则和保用条件。内容涵盖发动机、变速箱、驱动桥等关键部件的配合间隙、拧紧力矩、起动性能等具体参数。适用于修理质量的评定，确保车辆修理后安全可靠运行。
Key Sentences extracted from text
主轴瓦与主轴颈,连杆轴瓦与连杆轴颈,活塞裙部与气缸套的配合间隙,活塞环在气缸套内的开口间隙及边间隙应符合原设计规定。
主轴承螺栓.连杆螺栓,飞轮螺栓及气缸盖螺栓的拧紧力矩应符合原设计规定。
气门下沉量,气门导管伸出量.气门间隙,曲轴轴向掰隙,凸轮轴轴向游隙,发动机配气相位及供油提前角等应符合原设计规定。
发动机大修后起动性能:手摇起动的柴油机茌环境温度 0C时应能顺利起动,电起动柴油机在环境温度-5C时应能顺利起动。
发动机大修后,标定转速,最高空转转速及怠速转速应符合规定;水温 袖温及机油压力等应正常。
The fit clearances between main bearing shell and main journal, connecting rod bearing shell and crankpin, piston skirt and cylinder liner, as well as the ring gap and side clearance of piston rings in the cylinder liner shall comply with original design specifications.
The tightening torques of main bearing bolts, connecting rod bolts, flywheel bolts, and cylinder head bolts shall comply with original design specifications.
Valve recess, valve guide protrusion, valve clearance, crankshaft axial clearance, camshaft axial clearance, engine valve timing, and fuel supply advance angle shall comply with original design specifications.
Starting performance after engine overhaul: hand-cranked diesel engines shall start smoothly at an ambient temperature of 0°C, and electric-start diesel engines shall start smoothly at an ambient temperature of -5°C.
After engine overhaul, the rated speed, maximum no-load speed, and idle speed shall comply with specifications; water temperature, oil temperature, and oil pressure shall be normal.