![]() ![]() ![]() Replacement of the air conditioner compressor clutch Some service stations offer the service of winding a new coil of an electromagnet: in such a case, repair is only possible to be made by specialists. These works, if you have the appropriate equipment, are easy to be carried out by yourself. The part repair generally involves replacing faulty components: a bearing, an electromagnet, or a pressure plate. Repair of the air conditioner compressor clutch The temperature drop that occurs, for example, due to the water ingress onto the heated surface of the part is also hazardous to the bearing. The clutch bearing premature wear is often caused by the dust boot destruction, which makes the assembly components exposed to moisture and dirt. The parts temperature rises, which results in melting of the surface of the insulation layer of the magnet winding, and in the winding burnout. Often the clutch malfunction is connected with the bearing freeplay, because of which the pulley inner surface starts chafing against the electromagnet housing. A too long distance impedes the action of the electromagnet upon the clutch pressure plate, which causes the latter to stay inactive after the compressor is switched on. Increase of the gap between the plate and the pulley is also provoked by slackening of the spring. The slippage of the plate in relation to the pulley can also result from too high pressure in the air conditioning system, or from jamming of the compressor bearing, which also leads to accelerated abrasive wear of the assembly components. One of the most common part malfunctions is the pressure plate wear due to incorrectly adjusted clearance: if it is smaller than required, then, even with the compressor off, the plate and pulley wear out. the rubber components of the unit have melted on the surface.Ĭauses of the air conditioner compressor clutch failure.while driving, abnormal sounds are heard from the engine compartment.corrosion is visible on the clutch pressure plate surface.the air conditioner does not switch on.You may identify that the air conditioner compressor clutch requires to be inspected by the following symptoms: For this purpose, disconnect the device from the clutch and measure the voltage at its terminals. If in your vehicle the thermal protection device is located outside the coil housing, you should inspect its operability too. It should be 0.35-0.65 mm on the average. Next, measure the clearance between the pulley and the pressure plate. Then check if the power is supplied to the part by measuring the voltage between the corresponding terminals of the power supply wire. With its help, you should measure resistance between the component terminals and check for breakage in the component winding. You will need a multimeter for a more comprehensive diagnosis. If the component is serviceable, a much greater effort will be required to rotate the pulley by hand. Apply 12V voltage to the wire going to the clutch.Rotate the pulley on which the belt moves by hand.If a short drive belt is installed on the car, the procedure is as follows: The sound of the compressor activation indicates its good working order. Again apply 12V to the wire that is going to the clutch.Disconnect the power supply from the connector.If the component is serviceable, you should hear a peculiar click that indicates its activation. Disconnect the connector of the wire harness going to the clutch, and apply voltage of 12V to it.Shift the transmission lever to neutral.If your vehicle uses a long belt to drive auxiliary units, adhere to the following instructions: The diagnosis procedure is dependent on the drive belt length. As a first step, you need to check if the clutch activates when the air conditioner is switched on. How to detect the air conditioner compressor clutch failureĭiagnosis of the part is carried out in several stages. ![]()
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