307D, 311D, 312D, 313D, 315D, 318D, 319D, 320D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 340D, 345D, 349D, 374D, 390D and M325D Excavators Air Conditioning and Heating Caterpillar


Visual Inspection

Usage:

325D L A3R

------ WARNING! ------

接触制冷剂会使人受伤。

此系统永远处于加压状态,即便发动机没有工作也是如此。 切勿让已加注制冷剂的系统受热。

接触制冷剂会造成冻伤。 让手、脸避开有助于防止受伤。

制冷管路打开时,须始终佩带护目镜,即便压力计显示系统中已经没有制冷剂,也须佩带。

取下接头时务必小心谨慎。 慢慢地拧松接头。 如果此系统仍然有压力,请抽空系统,回收制冷剂,然后再拆下接头。

通过点燃的香烟吸入制冷剂会导致人身伤害或死亡。

通过点燃的香烟或其他抽烟方法吸入空调制冷气体,或吸入燃烧空调制冷气体形成的烟雾,都会导致人身伤害或死亡。

维修空调时,或在任何可能存在制冷气体的情况下都不要抽烟。

请先将机器移至平坦的地方,然后再对空调和加热系统进行检查。 把所有机具降到地面。 确保变速箱处于空档或停车位置,确保停车制动器接合。 让所有其他人员远离机器。


执行空调系统的性能检查前,必须检查以下各项:

  1. 检查冷凝器和蒸发器中有无阻碍空气流动的障碍物。 检查有无污物、昆虫、塑料袋等。

  1. 清理新鲜空气滤清器和再循环滤清器。

  1. 检查压缩机上的皮带有无松动。

  1. 检查干燥和接收罐上的潮气指示器。 如果指示器为粉色或白色,则表明系统内存在潮气。 更换干干燥和储液罐或直列式干燥器。 关于更换干燥和接收罐的指南,请参阅拆解和组装, "接收罐(制冷剂干燥器)拆卸和安装"。 如果潮气指示器为蓝色,则表明系统正常。

  1. 检查蒸发器上的排放管。 放水螺塞应该顺畅无阻。

Caterpillar Information System:

307D, 311D, 312D, 313D, 315D, 318D, 319D, 320D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 340D, 345D, 349D, 374D, 390D and M325D Excavators Air Conditioning and Heating General Troubleshooting Information
312C, 322C, 325C and 330C Excavators and TK1051 Track Feller Buncher Air Conditioning and Heating Machine Preparation for Troubleshooting
307D, 311D, 312D, 313D, 315D, 318D, 319D, 320D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 340D, 345D, 349D, 374D, 390D and M325D Excavators Air Conditioning and Heating Air Conditioning E22 - Evaporator Sensor (Short Circuit)
307D, 311D, 312D, 313D, 315D, 318D, 319D, 320D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 340D, 345D, 349D, 374D, 390D and M325D Excavators Air Conditioning and Heating Air Conditioning E21 - Evaporator Sensor (Open Circuit)
307D, 311D, 312D, 313D, 315D, 318D, 319D, 320D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 340D, 345D, 349D, 374D, 390D and M325D Excavators Air Conditioning and Heating Air Conditioning E16 - Water Temperature Sensor (Short Circuit)
307D, 311D, 312D, 313D, 315D, 318D, 319D, 320D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 340D, 345D, 349D, 374D, 390D and M325D Excavators Air Conditioning and Heating Air Conditioning E15 - Water Temperature Sensor (Open Circuit)
307D, 311D, 312D, 313D, 315D, 318D, 319D, 320D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 340D, 345D, 349D, 374D, 390D and M325D Excavators Air Conditioning and Heating Air Conditioning E14 - Fresh Air Sensor (Short Circuit)
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307D, 311D, 312D, 313D, 315D, 318D, 319D, 320D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 340D, 345D, 349D, 374D, 390D and M325D Excavators Air Conditioning and Heating Air Conditioning E43 - Damper (Air Outlet)
307D, 311D, 312D, 313D, 315D, 318D, 319D, 320D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 340D, 345D, 349D, 374D, 390D and M325D Excavators Air Conditioning and Heating Air Conditioning E44 - Damper Error
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