If oil or refrigerant charges are incorrect, internal damage to the compressor will occur! If uncertain about the proper lubricant type or amount, refer to the Capacities Guide, the under hood decal, or an O.E. The only moving component in the A/C system is the compressor, and adequate lubrication is critical. Removing the air and moisture with an A/C system vacuum pump for a minimum of forty-five minutes to an hour, is necessary to deliver proper long lasting A/C performance. The A/C system must be free of moisture and air to work properly. (2) Closed loop power cleaning using a refrigerantġ996 and up condenser designs are difficult, if not impossible, to thoroughly clean, and in many cases must be replaced.This cleaning method is utilized by several major O.E. (1) liquid cleaning with an effective cleaning agentįlushing with Dura Flush II or similar non-oil based flush designed specifically for automotive A/C use, is a proven method to clean A/C system components when used with a flush cylinder and pressurized air.Ĭlosed loop flushing with a power flush machine and the machine manufacturer’s approved solvent is an effective method to clean A/C system components.Two methods used today are effective in removing oil and contaminants: Clean the entire system thoroughly with an effective cleaning agent and/or replace contaminated parts. This contaminated oil, as well as moisture and other corrosives must be removed to avoid premature failure of the replacement compressor. ![]() When a compressor fails, tiny internal particles mix with oil and spread throughout the entire system. It is very important to remove all moisture from the A/C system before charging. Moisture in an A/C system can form corrosive contaminates that will cause rapid system failure. ![]() This material is designed to absorb the moisture that has seeped into the A/C system. (Over-Tightening Causes Leaks) Replace the Filter Drier or AccumulatorĪll filter driers and accumulators contain a desiccant material. Tighten bolts equally according to torque specs for that specific compressor. Leave mounting bolts loose until all bolts are in place. Warped brackets must be completely straightened or replaced. When mounting the replacement compressor to the vehicle, the compressor must fit or rest with even contact at each mounting point. Use a refrigerant identifier to verify that the refrigerant in the system is not contaminated with a blend refrigerant or has a high concentration of air. ![]() Low voltage at the A/C clutch assembly can cause premature compressor failure.Ĭontaminated refrigerant continues to be one of the most significant problems facing the A/C service industry today. Worn belts, idlers and tensioners can cause poor cooling system performance due to belt slippage. Make certain that the engine cooling system is at peak operation, and that the cooling fan / fan clutch is operating properly. Proper A/C performance is dependent on all systems performing properly. IF EQUIPPED WITH A SWITCH PORT PLUG, DO NOT REMOVE THE SNAP RING UNTIL PRESSURE HAS BEEN RELEASED.įollow all Federal, State and Local Regulations. TO AVOID POSSIBLE INJURY, WEAR EYE PROTECTION AND SLOWLY UNSCREW SHIPPING CAPS OR PLATE TO RELEASE PRESSURE. WARNING: THIS COMPRESSOR MAY BE UNDER PRESSURE.
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