Auto Service Professional

APR 2018

Magazine for the auto service professional

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35 | ASP April 2018 Circle 116 on Reader Service Card USA MANUFACTURER OF INNOVATIVE TOOLS & EQUIPMENT (845) 679-4500 www.ipatools.com #5700 Alpha MUTT® Bluetooth ® • Automatically generate digital reports • Highly accurate diagnostics and pass/fail circuit testing results • ABS diagnostics available on #5700A Advanced Diagnostic Spanish and French Translations Included in App Trailer Tester Includes: Rain Cover, Chassis Ground Cable, 3-Button Remote, 12-Button Remote, 7-Way Cable, 12' Glad Hands and 10" Tablet Technical refrigerant recovery. When this happens new oil needs to be put back into the system to replace what was removed. In A/C RRR equip- ment designed to service R-1234yf vehicles and equipment, to service electric hybrid A/C systems they don't have an on-board oil injec- tion function. In this scenario techs will need a manual oil injector to inject the necessary amount of oil into the vehicle's A/C system. PAG or POE oil injectors perform the same function, but are clearly labeled so techni- cians know which injector to use with what oil. Having one injector dedicated to one oil type and not mixing oils is a good practice to employ. Using the incorrect oil can damage A/C systems, leading to a seized compressor or requiring an entire system to be replaced. Techs should always check the vehicle underhood label to know what type of system they're working on, what oil and refrigerant must be used, and should seek training to work on R-1234yf and high-voltage systems to learn more about the new refrigerants and service procedures. e average lifespan of an A/C RRR machine is 7 years, but it varies based on geography, which impacts how frequently a machine is being used over the course of a year. Over the years, A/C systems have become smaller and more efficient, in addition to systems using high-voltage elec- tronically driven compressors used in hybrid and electric vehicles. System efficiency of A/C RRR equipment has also improved significantly. In 2007, the industry created and implemented new standards for RRR equipment that include the first recovery efficiency and charge accuracy requirements. Machines manufactured prior to 2007 had no specific performance require- ments meaning performance could vary from machine brand to machine brand. Preventive maintenance 1. Clean the condenser to remove buildup of road debris between the cooling fins. Clogged fins can raise system head pressures which can not only affect cooling but can also cause

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