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How do you use R-12 gauges?


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If you need info on R-12 HI/Lo A/c pressure gauges, you should take veh. to pro. Once you connect lines from gauges to A/C, you need to understand what the readings mean. avg. lowside @idle = 28-34, avg. Hiside = 120-130.

BE CAREFUL. MANY BEGINNERS and cert. mechanics have made mistakes and injured themselves.