Figure 6-6.—A maintenance index page (MIP) for one design and make of high-pressure air compressor systems (page 2 of 2).DEHYDRATOR DEW POINT READINGS 1. LP air (type I) dehydrator’s normal dew pointThis reading is taken every 4 hours of dehydratorservice. Readings verify that the dehydrator is operatingcorrectly. The normal readings of the various types ofair dehydrators are as follows:reading is a dew point temperature reading of 40°F orlower at 80 lb/in2. This indicates that the dehydrator isdelivering an air quality within its design capability. Areading of 50°F or higher at 80 lb/in2 indicates that thedehydrator is not working properly, and you shouldcheck the applicable technical manual.6-7
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