使用 HFC-134a 或 HFO-1234yf 制冷剂的非道路作业机械和农用拖拉机的空调维修程序

[中文适用范围]： 本 SAE 建议规范旨在为技术人员提供安全高效的技术及通用设备建议，用于维护 SAE J1116 定义的非公路自走式作业机械以及 ASABE 标准 ANSI/ASAE S390 定义的农林拖拉机和机械的移动空调系统。本建议规范涵盖 HFC-134a (R-134a) 和 HFO-1234yf (R-1234yf) 两种制冷剂。这两种制冷剂的许多维护程序相似，但其回收、再循环、充注和电子泄漏检测工具可能因制冷剂而异。 [外文原描述]： This SAE Recommended Practice is intended to provide technicians with safe and efficient techniques and general equipment recommendations for servicing mobile air conditioning systems in off-road, self-propelled work machines as defined in SAE J1116 and tractors and machinery for agriculture and forestry as defined in ASABE standard ANSI/ASAE S390. Both refrigerants HFC-134a (R-134a) and HFO-1234yf (R-1234yf) are covered. Many service procedures are similar for both refrigerants, but recovery, recycling, charging, and electronic leak detection tools can be unique to each refrigerant.