Check behind the large hoses that may be obstructing your view of the compressor. After oil level is corrected, cap service gauge ports on both valves. All you need to do is fill the new AC compressor with exactly the same amount that you drained out of the old AC compressor. With the compressor standing level, check the level of the engine oil. Re-install oil plug. Secure the reclaimer machine to the two valves on the AC compressor labeled high side and low side. Check the oil level in the sight glass. You can open … Use the same quantity as was removed from the old compressor in step 1. Hence, as far as possible, try to reduce the amount of moisture in contact with the oil. If the amount is less than drained you may have a leak and you AC compressor should be pressure tested for leaks. First open the hood of your car and locate the AC compressor. engine and compressor, and quickly turn suction valve stem to full front-seated position. If adding the right amount of oil into your compressor is mandatory, choosing the right type of oil that best suits your system is also important. Open drain valve on compressor and drain oil into a measuring device that can measure liquid ounces. Always check the underhood A/C specification label or A/C compressor label before adding refrigerant oil to A/C compressor/system. 3) To check oil level, slowly open compressor crankcase plug to relieve any remaining pressure. It will be located on the front of the engine where all you belts run (the front of the engine can face either side of the engine compartment if it is a transverse engine. Be sure to also choose a quality oil from an authentic supplier. To check the oil level, I recommend using a dip stick as described on page 7 of this section of the York service manual. Unfortunately, there is no dipstick to check the amount of oil in a compressor and the oil must be drained and replaced to ensure there is a correct amount of oil in the AC compressor unit. If your AC isn’t working, there’s a good chance that a faulty compressor could be the culprit. Regularly check the oil level, some compressors will have a dipstick on the oil cap, others will have an oil level gauge like this one: Pouring oil from a compressor installed in one vehicle into another is definitely not recommended. REFRIGERANT OILS NOTE: Use ONLY the specified oil for the A/C system or compressor. Remove the compressor from the vehicle. First, when oil in a compressor is drained normally, about 10% of the lubricant remains in the lines, in the cooler, or in the bottom of the sump. Changing the oil in an air compressor. If the oil is 3/8-inch or more below the fill hole, add oil to the tank. Fill compressor with recommended oil amount and replace drain cap. The minimum oil level required in the compressor is 1.5 inches (40 mm) below the center of the compressor sight-glass. If you cannot find the information on the compressor, you can always visit our website, and view our. The oil circulates along with the refrigerant when the AC is running. The amount of oil should neither be lesser nor greater than the required amount. After you've filled the system with refrigerant, and the A/C has been operating for 5-10 minutes, check the oil level again, and adjust it accordingly. An air conditioning compressor creates cool air by circulating refrigerant through your AC unit. There are a few different ways to find out how much oil needs to be filled into the AC system. All you need to do is fill the new AC compressor with exactly the same amount that you drained out of the old AC compressor. to "cut-out pressure". Some of the large air compressors have site glass that makes it easier to check the oil level. 4. To identify the correct oil type, always refer to the compressor identification label - either attached to the rear or side of the compressor. A trigger-type oil squirt can seems to be the best way to add oil when necessary. See AE4-1303 for more information. Add oil, if necessary, to the upper mark on dipstick. Open the oil intake valve; Insert a funnel so the oil can drain into a bucket; Drain the oil; Pour 1.62 quarts of oil into the compressor; Fill oil to mid level on the oil sight gauge; Retighten the valves; Cleaning the air filter ELGi uses polyester air filters so they can easily be removed and cleaned with just soap and water. If you have got a direct drive compressor, you will find dip stick on the oil cap in the crankcase. I have a 1967 Chrysler Newport Custom that I want to check the oil level in the A/C compressor before I try to see if the A/C works. Depress the button on the reclaimer machine labeled "reclaim". However, the easiest way to tell EXACTLY how much oil needs to be in your specific AC compressor is to drain the old compressor and measure the amount of oil that comes out. Check for the specifications, right amount and type of oil, before attempting any DIY practices. Air compressors require constant oil lubrication to prevent friction on the pistons or screws and other moving parts. Remove the reclaimer machine lines from the AC compressor. Look for the drive belts and you have found the front of the engine). The last check for oil level is covered here and this process is to use the oil dipstick which is not provided as part of the compressor but will need to be obtained from Sanden. However, the easiest way to tell EXACTLY how much oil needs to be in your specific AC compressor is to drain the old compressor and measure the amount of oil that comes out. Use only NEW, moisture-free refrigerant oil in A/C systems. Locate the high and low side valves on the reclaimer machine and open them up to the "on" position. The AC compressor requires oil to lubricate the unit and to keep the piston and other moving parts from seizing. My question is do I screw the dip stick in when checking the oil level or not. But then I decided to stop this problem once and for all. of oil. The gauges should still read "0" on the reclaimer machine. Compare the liquid ounces of oil drained with the amount of oil required by your vehicle's AC compressor unit. 1. The new label will also display the amount of oil inside the new compressor. Your air compressor is basically an engine, and as such it requires constant lubrication to prevent excessive friction from damaging the moving parts and ultimately seizing the piston/s. The oil should be leveled with the oil fill hole. Turn off the engine and open the hood to find your AC compressor. Compare the liquid ounces of oil drained with the amount of oil required by your vehicle's AC compressor unit. Heating, Cooling & AC. Copyright © 2021 Buy Auto Parts. The minimum amount of oil is about 7/8", and the maximum is 1-1/4". He has worked as a staff writer for the "Pensacola News Journal" and is the author of Moon Handbook's "Guide to the Florida Gulf Coast." BuyAutoParts.com is not responsible for any damage or injury that can occur during these procedures. The machine should run fully until the gauges that are labeled for the high and low valves are reading "0." Also, I have had some squealing at start-up on the compressor that gradually goes away. Open the hood and look on the left side near the front of the vehicle for your AC compressor. service many says you can do it, but as soon as I start to loosen the oil fill plug I hear hissing. The first place to look is on the tag of the AC compressor. How to Add Refrigerant to a 2000 Grand ... interior of the car image by Astroid from, Copyright 2021 Leaf Group Ltd. / Leaf Group Media, Freewebs.com: Checking AC compressor oil guide, Autoacsystems.com: Compressor replacement guide. Drain the oil from the old compressor; measure and record the amount flowing into a container. It is important to change the oil in an air compressor unit often to make the equipment last longer. If you’re looking at the threads on the plug in the center of the base, that’s the drain, and not where you check oil level. Joshua Kinser began writing professionally in 1999. Oil, Lubrication. Once you add oil to your compressor, the next best thing to do is to check the oil level sight glass. It is important that the oil amount in the compressor is exactly the recommended amount. Remember to use Compressor Oil (we recommend & use 68 grade Hydraulic Oil) in your air compressor pump. Suction pressure should be slightly greater than zero. I have the FSM and read and made up the dipstick for checking the oil, I know where the two spots are to check from on the compressor but the dimensions they give for 6oz. Drain the oil from the new compressor. The refrigerant is subjected to extreme pressure changes which generates a lot of heat, in addition to the heat produced by the AC parts themselves. Like any mechanical system, it’s important to make sure your air conditioning system stays lubricated, and AC compressor oil is the lubricant for the job. Page 13: Maintenance Inspect condition of drive belt; replace if necessary. A friend gave me a used Sanborn 20 gal belt drive horizontal air compressor but no owners manual. Add new oil of the correct type to the new compressor. We often get asked by customers if they need to check the level of oil in our compressors as they come out of the box. If your cut-out is over about 130PSI then you have a two stage pump. I think that is the right number for the a/c compressor, that's what my 03 LS has in it and unfortunately there is no way to check the oil level in the system, the oil circulates with the gas and some portions of the oil is retained in the receiver/drier, the … All of our compressors are filled at the factory with precise measuring equipment to insure your compressor has the proper oil charge. You can diagnose problems with your compressor by using a multimeter, or a device that can measure volts, amps, and ohms. Look for a silver metal cylinder with belts, tubes, and wiring connected to it. and max., I don't understand where to measure from. When the AC is turned off, the oil will settle within the components of the AC system, such as the evaporator and the suction lines. Kinser earned an Associate of Arts in journalism with an emphasis in biology from Pensacola State College. There is no oil level sight window, only a small dip stick. Open drain valve on compressor and drain oil into a measuring device that can measure liquid ounces. Enter your email to receive an instant discount. In some cases this can be differ from the vehicle specifications! Note: Remember that releasing refrigerant into the atmosphere is against the law. While adding oil to an AC compressor, you must first evacuate the system with a recovery machine. This means that the Freon has been pulled from the compressor. In some cases this can be differ from the vehicle specifications so always check car manufacturer data. Either way, it takes 18 Oz. Seal and O-ring must be clean and undamaged. We always recommend that you have your AC system serviced by a licensed mechanic. Adding the right amount of oil to the AC system is just as crucial as fitting quality replacement parts in your vehicle. An AC compressor is the device that circulates air and coolant to cool air as it moves through the AC system of your vehicle. Use your owner's manual to find the oil that will be compatible with your system. You AC compressor oil is now checked and the Freon in the AC compressor has been recharged. ,min. To identify the correct oil type always refer to the compressor identification label, either attached to the rear or side of the compressor. The compressor oil level should be checked with the compressor off to avoid the sump turbulence when the compressor is running. Jun 18, 2017 #1. dan juhasz FBBO Gold Member FBBO Gold ... Local Time: 2:12 AM. The oil absorbs this heat and keeps the AC components lubricated. Free all contacts of loose Close the shut-off valve and let air compressor pump up wire cuttings, etc. If you add too much oil to the system, it may pool in various places of the system and can coat the inner walls of the evaporator and condenser coils. This captures the refrigerant and does not allow it to escape into the atmosphere. Check for the optimal level of AC oil at the intervals specified in your owner's manual. Moisture in the oil also caused the dielectric strength of the oil to be reduced significantly as water is a reasonably good conductor. If someone changes the oil and the TAN is 2.0, and if took 12 months for it to reach that mark, then the oil that has remained will contaminate the new oil. All rights reserved. http://www.buyautoparts.com/ac-compressor/car_air_conditioning.htmAC compressor refrigerant oil capacity is usually stamped on the compressor. 3. Checking the oil is not the easiest procedure to do for an amateur mechanic as it requires the AC unit to be hooked up to a recovery machine, to ensure that Freon is not released into the atmosphere. How to Check Air Compressor Oil Level. Turn off the high and low valves on the reclaimer machine. This will diminish their ability to absorb or dissipate heat, thereby bringing down the overall cooling performance. Turn the air compressor off and check oil level. So I started looking for solutions wherever I can. scared if I remove it, I will make a huge mess. A flashlight will be helpful. Many of the oil-lubricated air compressors have an oil sight glass that makes it easy to monitor the level of oil in the compressor unit. Normally, this glass may be found on the sump tank in a rotary screw compressor or on the base of the pump for a reciprocating type compressor. If the amount is less than drained you may have a leak and you AC compressor should be pressure tested for leaks. Remove the oil fill plug (sometimes referred to as the dipstick) from the oil fill hole. Once you add the right amount of oil to the AC system, maintaining the same amount in the future is also vital for an efficient performance of the AC mechanism. To check the oil level, follow these simple steps: Ensure the vehicle is parked on level ground and that the compressor system is depressurized and cool to the touch. checking oil level in rv2 compressor. Typical Compressor Oil & Refrigerants. Your air compressor oil level should be checked daily or every time you use the air compressors. To make sure your air compressor is running efficiently, it is important to check your oil level regularly and to know how much oil your compressor needs. Too little or too much oil is harmful to the AC compressor. A clean air compressor runs cooler and provides longer Every 100 Hours of Operation service. The oil dipstick will need to be inserted into the test port and the level can be … The leak of oil in the air compressor has troubled me for a long time. Hook the reclaimer machine to the compressor and recharge Freon into the compressor by hitting the "charge" button on the reclaimer machine. To make sure your air compressor is running efficiently, it is important to check your oil level regularly and to know how much oil your compressor needs. The oil sight glass helps to determine the level of oil in the air compressor. Oil is as important as the refrigerant in an AC system. The type of oil isn’t critical when pumping plain air w/o freon; regular old 10W30 or ATF will work fine (I used ATF). Looking at the base on the left side opposite the flywheel, is where the dipstick should be. A failure to do so can result in oil starvation, which can be detrimental to the entire system. The oil level in the sight glass should be around the halfway mark. 2. Every air compressor that requires uses oil in its crankcase, has the facility to check the oil level provided with air compressor oil level gauge. If you cannot see where the oil is to on the sight glass it might be a good time to change the oil and clean the oil sight glass. Consult the Engine Operation Manual for the type and viscosity grade of the engine oil. Please note that this is not an official installation or instructional guide. Air compressors require constant oil lubrication to prevent friction on the pistons or screws and other moving parts. The label on the compressor will tell you the amount and type of oil. (3) - Compressor oil capacity. Every time when I checked the oil level in my compressor, I found a significant lowering of oil level. Locate the crankcase on your air compressor and identify the oil tank. Turn discharge valve to front-seated position. Therefore always check car manufacturer data. or 8oz. In either case, the performance of the AC system will be affected. The new label will also display the amount of oil inside the new compressor. While installing a new compressor or any other parts in your AC system, it is imperative that you add the correct amount of oil. 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