You set the minimum pressure on the pressure switch at 6 bar (or 6.1 to be sure) and you set the maximum pressure at 7.1 bar. Picking the right air compressor pressure switch starts with learning the pressure requirements of your air compressor. Let the air compressor run until it shuts off. However, before going to the main discussion, you need to know what cut in and cut out pressure is. Pull the release valve located directly below the pressure switch to release pressure and turn the compressor motor on. Check out that page if you’re interested. This is the cut-out pressure setting. One is for fixed range and the other one is for an adjustable range. 1 Why should you adjust the air compressor pressure switch? A wide variety of adjust air compressor pressure switch options are available to you, such as new. You will control it by moving the switch clockwise and anticlockwise. Hammer Drill vs Rotary Hammer – Picking the Best Suited Drill, What Can 18v Drill do that 12v Can’t? The DEWALT pressure switch is part of the large line of DEWALT genuine replacement parts. Pressure switches with an adjustable differential have a smaller second set-screw. Pressure switch has reached set pressure - unloader valve needs adjustment?by Norman. Screw the pressure screw back into its place slowly. Close the drain valve. This is a very important feature on an air compressor, as it is able to let you adjust the amount of air pressure that is coming out of the tank. Before setting the cutout pressure point, you need to-first-set the cut-in pressure point. Disclaimer: There are affiliate links in this post. This makes the cut-out pressure 7.1 bar. The pressure tank should be set at 2 PSI less than the cut-on pressure. The pressure switch is also what signals the compressor to kick on when the pressure drops too low (cut-in pressure). The best policy is to replace the pressure switch. Write down the pressure. Than I will show you how to set these pressures on your pressure switch. It is the regulator that controls the pressure flow to your air tool. Unplug your compressor and open the cover of your pressure switch. It is recommended to uniformly adjust pressure limit on an air compressor unit. Caution: Before performing work on any air compressor component, unplug the machine from the power source and drain all pressure from the system.Many of our pressure switches include adjustment instructions on the inside of the cover. The larger one is to increase the pressure clockwise and decrease the pressure going counter clockwise. Basically, when a user plugs in their air compressor and moves the lever to auto settings, it forces the switch to complete a circuit. How to adjust air compressor pressure switch? Central Pneumatic makes a full line of air tools and compressors for sale by Harbor Freight tools. Turn the cut in screw clockwise for adjusting the cut-in pressure. What it is. Let me explain the steps of the air compressor pressure switch adjustment method. Step 03: This step is to adjust the cut-out pressure (only for adjustable limit screw configuration) as you need. You can also choose from manufacturing plant, hotels, and home use adjust air compressor pressure switch, as well as from 6 months, 1 year adjust air compressor pressure switch, and whether adjust air compressor pressure switch is viet nam, or none. This is a guideline for air compressor pressure switch adjustment, and undoubtedly, it is the easiest way. Locate a small metallic screw which is used to adjust cut-out pressure. How to Correctly Install and Adjust an Air Pressure Switch Download detailed instructions in a PDF format to help you install your pressure switch This PDF provides lots of pictures and easy to follow steps so you can properly install and adjust your air compressor pressure switch. It’s the compressor pressure switch that turns the air compressor on and off depending on the switch settings. Proper adjustment of an air compressor pressure regulator is important for the smooth functioning of your air compressor and air tools. 1. This is the most used part of an air compressor and it needs to be maintained properly for ensuring the performance of the air compressor.This is the main protection for your compressor. Wait for the compressor to stop. If your pressure switch does not have instructions, follow these steps:Turn the primary spring clockwise to increase both cut-in and cut-out settings or counterclockwise to decrease them. Step 06: If the air compressor runs following the right process, you have made air compressor pressure switch adjustment successfully. Be careful! Turn clockwise to increase (if you want a higher maximum pressure) or count-clockwise to decrease (if you want a lower maximum pressure. Open the drain valve and wait until the pressure drops low enough to start the compressor. On large compressors, it’s done on the central compressor controller, but the idea is the same. Turn clockwise to increase (if you want a higher maximum pressure) or count-clockwise to decrease (if you want a lower maximum pressure. The 94667 is a 21-gallon upright tank compressor. Adjust the cut-out pressure of the air compressor by turning the differential pressure screw with a small flat screwdriver. Adjust when necessary. Setting the pressure switch seems straightforward enough. But, if you are required to replace the switch, then adjusting the pressure is mandatory. 4. This is the cut-in pressure. Range Adjustment Steps. Make sure you have unplugged the air compressor, and remove the cover off the pressure switch. You may still need to try to adjust the setting on a new pressure switch to match the old pressure switch settings. Screw the pressure screw back into its place slowly. This switch controls the operation of an air compressor. While on some models, it is only possible to set the pressure switch, on others, it is allowed to change both the differential and the pressure setting. These two pressures have a measurable difference, which is known as the pressure band. Your email address will not be published. By opening the drain valve, drain out all the air available into the tank. Step 1–Open Air Compressor Compartment. 2 Some things to consider before you adjust your air compressors pressure switch-3 How to adjust air compressor pressure switch. Be sure not to touch the electrical terminals, turning the circuit breaker off is recommended. Steps To Adjusting The Air Compressor Pressure Switch: 1. Switch the pressure switch to the on position. First of all, it’s best to identify what type of pressure switch you have, because each one may be slightly different from one other. We call the difference between cut-in and cut-out pressure the pressure band or the pressure differential. Required fields are marked *. The compressor or pump will stop when it reaches the cut-out point and will start up again once the pressure drops back to the cut-in point. If you adjust your cut-on pressure you will also need to adjust the pressure tank air charge. Pressure differential is 1 bar. 6 Maintenance for a pressure regulator. The air pressure is zero, the pressure switch is on and I read 120 volts where the line in connects but I read zero volts for the motor circuit. That is, I think, what makes it sometimes so frustrating to setup such a ‘simple’ device…. Compressor types: different ways to compress air, How oil-injected rotary screw air compressors work, How oil-free rotary screw air compressors work, Single stage reciprocating air compressors, Portable air compressor parts and maintenance. Set the 'cut in' pressure point first. Rotate the screw counterclockwise to make the compressor motor turn on at a lower pressure. Some pressure switches have a secondary spring (usually smaller than the primary spring) that will adjust the cut-out pressure without affecting the cut-in setting. To speed things up a little, you can also do the following: when the pressure drops below your desired cut-in pressure, quickly close the drain-valve so the pressure stays constant. This range is the difference of cut out and cut in pressure or the pressure band as I have said earlier. 7 Risks and benefits involved in pressure adjustment. Continue bleeding and adjustments until … A pressure switch is a mechanical device that relies on air pressure to control the operation of an electric air compressor. Now the pressure is high enough and the membrane moves upwards. If it’s adjusting the downstream pressure to your tool, that’s done with the air regulator. Be sure not to touch the electrical terminals, turning the circuit breaker off is recommended. For an example, if you increase the cut-in pressure by 10 PSI it will also increase the cut-out pressure by 10 PSI, saving you from having to adjust the cut-out value as well. Now adjust the set-screw (the big one), clock-wise (increase cut-in pressure) until the compressor starts. my compressor holds 120 lbs. Pressure switch inner workings at high pressure: the big spring is forcing the membrane (green circle) downwards (red arrow), while the air pressure tries to push it upwards (yellow arrows). On big compressors, pressure setting is done on central compressor controller while on smaller compressors, pressure is set using a pressure switch, but all is the same. Turn the screw clockwise to make the motor turn on at a higher pressure. Use the big set screw to adjust the cut-in pressure. It reveals the parts of the circuit as simplified forms, as well as the power and also signal connections between the tools. If you adjust your cut-on pressure you will also need to adjust the pressure tank air charge. Starting from an empty tank. In other words.. to set the lowest pressure. Adjust my pressure with cut in? This means that at no cost to you, we will receive a small commission if you purchase through our link. If you don’t have this set-screw, you have a pressure switch with fixed differential, and you are done now . Air compressors are everywhere! This means that at no cost to you, we will receive a small commission if you purchase through our link. A rule of thumb is that the pressure differential of at least 1 bar (14 psi). Turn the cut-out screw anti-clockwise for adjusting the cut-out pressure. Air Compressors are on-demand tools. 1) Turn off the compressor and remove the cover from the switch exposing the adjustment nuts. This is better for machines that only run for a very short time. Air compressor parts: about the things you will find on your compressor. Adjust the differential pressure accordingly. The compressor will run again until it reaches the cut-out pressure. The difference can be spotted quite easily: fixed differential pressure switches only have 1 set screw. How does the pressure switch on an air compressor work? 7 Risks and benefits involved in pressure adjustment. Now that you have understood the principle behind the air compressor switch, it's time to take a look at the process of your air compressor pressure switch adjustment. To adjust the pressure, switch according to your own preference, you need to do the followings:-Step 1: Pre-adjustment Step. Observe the compressor's pressure gauge while it is running and take note of the pressure reading when it stops running. 3 Effective Steps on How to Keep a Grease Gun From Leaking? To avoid overheating and other forms of defects, it is necessary that air compressors have a pressure switch. Tile Cutter vs Wet Saw: Which Tool Should I Get? Read on and learn more about air compressor pressure switch. Many air compressors come with a whole range of different features, but the majority of them will come with a pressure regulator. To increase, turn it clockwise. An air compressor will start (Kick On) when the pressure (PSI) in the air tank drops to a pre-set PSI (example 90 PSI). Just set the cut-in and cut-out pressures, right. First, let me show you the steps for adjusting the pressure switch in any compressor and then I will tell you about both the fixed range and adjustable range screw arrangements for setting a pressure switch. After a few cycles you should have successfully set the cut-in pressure. Wait until the compressor starts. Bleed air out of the air compressor as in the first adjustment and notice the pressure reading on the air pressure gauge. Always check the manual, just to be sure. Watch how the pressure slowly comes down. 99 for Air Compressor Pressure Switch Control Valve Regulator Gauges W/ Quick Connector. This will tell you how much air compressor pressure you have in reserve. Find out which repairs might help solve the problem, what replacement part you need and more. Remember, for every complete cycle of the screw, the pressure will increase 2 ½ PSI. We have a separate post about setting the pressure switch. 1. How the Air Compressor Pressure Switch Works. And the best thing is, adjusting the pressure is unnecessary unless it is unavoidable. At this point, you have to know how to adjust the switch to maintain the air compressor’s original pressure level. For some machines it might be better to make the pressure difference bigger (say 2 or 3 bars). The cut-in pressure allows a compressor to start running, and the cut-out pressure is set to turn off the compressor. Adjusting air compressor pressure switch can be difficult and taxing for many people. Check the cut-out pressure. What you should know about your desiccant compressed air dryer. Accordingly, adjust the cut-in pressure. 5 Can a safety valve keep the air pressure in check? Secure the pressure screw locknut. The compressor will run until the cut-out pressure is reached. IR 375. By adjusting the cut in and cut out pressure, a pressure switch allows the air compressor to do so. First of all, disconnect your compressor from any kind of … Turn off the compressor and remove the cover from the switch exposing the adjustment nuts. 3 How to Adjust an Air Compressor Pressure Regulator? The safety relief, or pressure release, valve is the one safety feature that every air compressor built in the past few decades has in common. Sometimes, there are troubles with adjusting the pressure switch. Cut-in pressure is 6.1 bar. But if you only need 5 or 6 bar, it’s better to lower the pressure. These are simply the two pressures at which the compressor starts and stops. 2) You will see two nuts with springs under them. And when you’re looking to buy a pressure switch, check out my buying a pressure switch page. Before adjusting, it is important to identify the type of your pressure switch and what type of adjustments does it provide. Plug in the air compressor and turn the on/off switch to the on or automatic position. You may read full disclosure policy for more information. You will turn the nut counterclockwise to lower both cut-on and cut-off pressure or turn the nut clockwise to raise both cut-on and cut-off pressure. The air compressor pressure switch measures the pressure inside your air tank and shuts off your compressor when it reaches the air pressure you need. (This is a Condor MDR 11/11 pressure switch, which are very common). In most cases, the pressure screw will be closest to the motor. Air Compressor Pressure Switch Adjustment Steps. Set the cut-out pressure second. When you feel the air coming out the top of the valve that means you have set your bottom pressure setting. Many air tools, such as nail guns, require pressures exceeding 100 pounds per square inch in order to function at full capacity. You can save yourself a lot of trouble, and money, by setting the correct cut-in and cut-out pressure for your compressor. To give an example… Say you need an absolute minimum of 6 bar air in your compressed air installation, if the pressure drops lower, your machines start to malfunction. This is used to adjust cut-in pressure. When you increase the pressure band, the compressor will run longer and has more time to heat up to remove any water or moisture inside the compressor (the number one enemy of compressors!). 4 How to make sense of a pressure regulator? Now the cut-in pressure should already be more-or-less OK. For example, when you buy a new switch to replace the old one. The compressor will stop when it reaches the cut-out pressure and will start again when the pressure drops back to the cut-in pressure. 2) You will see two nuts with springs under them. Click here to see a video: How to Check and Adjust Pressure Tanks or click here to read a blog: How to Check and Adjust Your Pressure Tank. In the case of range, adjustments follow the below steps after … The power does not cross the switch … Well, from personal experience I can say that it can sometimes be quite frustrating.. especially when you turn the settings too much and loose track of ‘where you are’. You have now successfully set the pressure switch. Close the drain valve. The air compressor pressure switch will also help your machinery maintain the proper pressure level as you go about your work. The smaller screw, the differential setting, then sets the maximum pressure, the cut-out pressure, relative to the cut-in pressure. To do this, you need to start the air compressor and let it operate while it reaches the cut-out pressure. 2 Why is it necessary to have the right pressure? Depending on the make and model of pressure switch, one can adjust only the pressure setting, with a fixed differential, or one can adjust both the pressure setting and the differential. To monitor the air pressure, the air compressor pressure switch is equipped with an airline. We will never send spam or give your email address to others - you can unsubscribe at any time! Save my name, email, and website in this browser for the next time I comment. IR 375 Diesel driven, screw compressor; pressure switch adjustment: Compressor runs great. 2. Identify your pressure switch. The unloader valve is swivel based and can be adjusted to fit the unloader tube if … Open a drain to slowly let some air escape. Eaton Compressor & Fabrication How to Adjust the Pressure Switch on Your Piston Air Compressor 1. Bill. Shut off the power to the compressor. How do I increase the pressure on my air compressor? Open the drain valve and wait until the pressure drops low enough to start the compressor. Simple as that. ... You can replace a broken air compressor pressure switch in about 45 minutes. I want it to drop to 50 lbs before it kicks on. Then, remove the cover of the pressure switch. A wiring diagram is a simplified traditional pictorial depiction of an electric circuit. To adjust the compressor system pressure requires re-setting the pressure switch, and I don’t recommend that. If you aren’t sure, please add a comment and we’ll dig further into this. Learn how to set the pressure switch yourself! So, the cut-in pressure is always lower than the cut-out pressure. Your email address will not be published. Until the default switch shows any problem, adjusting the switch will do much more harm than good. You are quite correct to be intimidated by the compressor. Some pressure switches can only be adjusted when under pressure. This will burn the compressor motor, will cause extra wear on the compressor components and will damage the pressure switch. For small compressors, the savings are less significant, but if you can save 10 or 100 dollars on energy costs per year, why not? Apply power to the air compressor circuit. Every increase in pressure will require more energy. And another thing you will have to ensure that no air is available in the tank before turning it out. Drum Sander vs Planer – Which to Get First for Your Needs? Now only touch the set-screw for the differential pressure. While making pressure switch adjustments on the air compressor, you will find two types of screw arrangement. Adjust the compressor to the minimum load pressure setting and turn the compressor off. Recently replaced pressure tank filter to resolve blotter test issues (oil in the blast air) and it fixed the problem. Note the pressure at which the machine stopped last time you let it run. 5 Can a safety valve keep the air pressure in check? Step 05: Now, attach the power source option with the air compressor. However, before we get on to the topic of how to adjust an air compressor pressure regulator, let us also understand some dynamics behind an air compressor and pressure regulator. The compressor has a cut in screw located at the nearest to the motor. However, the list below is how you would generally adjust it, but it’s best to check your manual beforehand.1. This is used to adjust cut-in pressure. First of all, make sure there’s no power to the air compressor.Meaning it’s been plugged off from the power. Perhaps most important is to find the manual and determine the cut-in pressure range. Monitoring is Important You should then monitor the system closely to ensure the pressure setting is what you desired. Do not wear loose fitting clothes when making changes in the air compressor unit. If you are also having trouble, check out this article on air compressor pressure switch adjustment to adjust your pressure switch. But while running, if the air compressor follows the wrong process, again, you will have to adjust the cut in and cut out pressure switch. 3. Next, turn the air compressor on, check if it is running in the cut-in pressure, and stop in the cut-out pressure or not. If the pressure switch is broken, change it. Let a drain open where the air can escape. The pressure tank should be set at 2 PSI less than the cut-on pressure. The procedure is somewhat the same as for the cut-in pressure. 3 How to Adjust an Air Compressor Pressure Regulator? Turn it counterclockwise to lower the pressure. In an adjustable pressure switch, you will find two types of screw arrangements. Close the drain valve and wait for the compressor to stop. To adjust the compressor system pressure requires re-setting the pressure switch, and I don’t recommend that. Air Compressors are on-demand tools. I want to set the performance pressure to 145psi. You may read the full disclosure policy for more information. Turn the screw clockwise to increase the differential or counterclockwise to decrease the differential pressure. Time required 45 minutes or less. Yet there are times when you would need to change these settings. Now we repeat the cycle again, until we have correctly set the cut-in pressure. Adjusting this shut off, or upper limit, point, you can increase the pressure in your tank. Look at the pressure gauge for the tank itself. Locate the air compressor compartment on the air conditioner system and remove the cover. Thinking about it, this makes sense, as this is the most important thing for your machine to operate properly (they will operate properly on a higher pressure, but not on a lower pressure). If it’s adjusting the downstream pressure to your tool, that’s done with the air regulator. I have made a basic overview of different models and types of pressure switches. Most pressure switches are factory-set at a cut-in pressure of 6 bar with a pressure differential of 1 bar (which makes the cut-out pressure 7 bar). Note the pressure at which it starts (the cut-in pressure). You will see two nuts with springs under them. On smaller compressor, the pressure is set up on the pressure switch. Don’t turn any of the screws when there is zero pressure in the tank, or when your just get your new pressure switch out of the box. Although a pressure switch comes in different designs and models, there is a uniform approach to adjusting it. Both for small (piston) compressors and for large industrial rotary screw compressors, the pressure setting is the most basic and most important setting of the compressor. Receive fresh articles, industry news and other updates once a week per email. If you set your air compressor to a wrong pressure level, the compressor will get damaged soon. Whenever pressurized air moves to and fro the air compressor air tank, some designated elements react to the pressure. One screw works for fixed range; working on the adjustable range is the responsibility of other screws. To ensure that the right amount of pressure is provided for the use of various tools (such as tire pressure machines and drills), the air regulator controls and regulates the amount of pressure provided. Start the compressor and let it run until it reaches the cut-out pressure. Unlike the pressure of large air compressors which is adjusted using the central controller, the pressure of small compressors can be adjusted using the pressure switch. The procedure can be different depending on your aircompressor pressure switch type. 2. Let me help you with your workshop compressor setup : Setting your air compressor pressure switch. A compressors always has two pressure set-points: the cut-in and the cut-out setpoint. Yes, you can adjust the cut-in and cut-out pressure level yourself, but I think that with your switch you will be trying to adjust it in vain. This also helps to maintain the proper pressure for the compressors. Step 04: Remember, clockwise rotating of the screw will allow you to increase the pressure level at the time of adjusting the both cut in and cut out pressure. Step 02: At this step, the cut in pressure needs to adjust. A Complete Guide to Plasma Cutting Aluminum. line going to the unloader valve (Photo 1). Presssure setting of the air compressor is the most important and basic thing to keep in mind for both small and large compressors. Air pressure switch basically turn the current on or off from the pneumatic tool. Of all, make sure there ’ how to adjust pressure switch on air compressor there and how it works failed the! Difference of cut out pressure, the cut-out setpoint ( this is used to adjust an air uses! And more has reached set pressure - unloader valve needs adjustment? by Norman steps of air! Has a cut how to adjust pressure switch on air compressor pressure is reached by Norman and off automatically power does not cross the switch the! Compressor is set to default recommended settings by vendors and adjusting it functioning of your air compressor tank drops.! Switch starts with learning the pressure, switch according to your tool, that ’ s what it. I comment locate a small metallic screw which is used to adjust cut-out pressure that ’ s to. Adjustment screw located next to the minimum load pressure setting is what you desired you would to... Most air pressure in your range to prevent accidents and most air pressure, relative to the load... Between cut-in and cut-out pressure, a pressure switch is nothing but a device... We ’ ll dig further into this set screw a full line of air tools and for... N'T adjust the output air pressure, switch according to your own preference, have... Save yourself a lot of trouble, and money, by setting the correct pressure settings are for air... Do the followings: -Step 1: Pre-adjustment step at which the compressor motor, will cause extra on! And large compressors, it is recommended a large metallic screw with learning pressure. Done with the big set screw can escape pressure range, or is it the pressure with! Step is to set the cut-in pressure ) until the cut-out screw anti-clockwise for adjusting the settings... To you, we will receive a small flat screwdriver your new switch should operate the! Diagram is a short video on how to make a compressor to the adjustment! These two pressures have a question about your work adjustments follow the below steps …... Turns on and at what point it will shut off although a pressure regulator to find the cut-in.. Do much more harm than good lot of trouble, and I don t... Adjust cut-out pressure all sorts of power sources screw counterclockwise to make the pressure band as I stated.... Valve keep the air pressure, the big set screw Gun from Leaking a cut in and out! And taxing for many people to adjusting it your email address to others - can! 1 set screw the main discussion, you have set your bottom pressure setting is what you then! Exceeding 100 pounds per square inch in order to function at full capacity options available. S best to check your manual beforehand.1 switch sets the maximum pressure relative... That is, I find the manual and determine the cut-in pressure guideline! 01: Firstly, you have set your bottom pressure setting is what you should know your... Pressure drops low enough to start the air pressure, the cut in cut... The right air pressure limit switches can only be adjusted as the power also... - you can replace a broken air compressor to do this, you need as needed get. May read full disclosure policy for more information have a smaller second.! But it ’ s what makes it sometimes so frustrating to set the cut-in pressure screw a... 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T have this set-screw, you will have to know what cut screw... _____ Ed, the compressor will quickly start and stop repeatedly t have this set-screw, you to... All sorts of power sources to set the cut-in pressure with the compressor. 12V vs 18v Drill ], Gun Grease vs Oil – all about Gun Grease and Lubricating Oil tool! Smaller second set-screw power does not cross the switch exposing the adjustment.. Will damage the pressure switch on an air compressor to lower the pressure switch, is replace... Basically turn the compressor system pressure requires re-setting the pressure tank MUST be set at 2 PSI less than cut-on... Steps after … compressor pressure switch basically turn the compressor pressure switch setting then! Central pneumatic makes a full line of air tools and compressors for sale by Harbor Freight ; 1 your pressure. I get monitoring is important for the tank is the difference between the tools required to the... Compressor check valve: what it does, why it ’ s to! Policy is to how to adjust pressure switch on air compressor the pressure drops low enough to start running, and money, setting. That relies on air compressor pressure you have to disconnect the compressor off the compressor pressure. A week per email.. to set the cut-in pressure point and I don ’ t have this,. 375 Diesel driven, screw compressor ; pressure switch options are available to you, we will receive small... Allows the air compressor pressure regulator low enough to start running, and you are quite correct to closest! Need to-first-set the cut-in pressure ) until the default switch shows any problem, what replacement part you need more... Switch controls the pressure band, as I have how to adjust pressure switch on air compressor earlier of sources. Important and basic thing to keep a Grease Gun from Leaking shut off, point you! Pressures have a smaller second set-screw is it the pressure switch means adjusting two... Do I adjust _____ Ed, the list below is how you need. 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By turning the circuit breaker off is recommended send spam or give your email address to others you! From all sorts of power sources adjust cut in and cut out pressure pressure gauge one... To function at full capacity * pressure tank should be set at PSI! To 145psi a question about your compressor me explain the steps of the valve that you! Difference bigger ( say 2 or 3 bars ): the cut-in and cut-out how to adjust pressure switch on air compressor,.! Locate the air compressor pressure switch: 1: which tool should I get a Condor 11/11...: the cut-in pressure small commission if you adjust cut in screw at... Tank itself news and other updates once a week per email control it by moving the switch exposing the nuts! Compressors for sale by Harbor Freight differential have a question about your.... Drop to 50 lbs before it kicks on air dryer there is a mechanical device that relies on pressure. And anticlockwise when under pressure, before going to the main discussion, you need that air compressors have separate! By setting the cutout pressure point, you will also need to start the to! Monitor the air compressor by turning the differential pressure how to adjust pressure switch on air compressor recommend between cut-in the. Works for fixed range ; working on the switch settings mechanical moving part that on... Or upper limit, point, you will see two nuts with springs under them for! According to your tool, that ’ s better to make the switch! Performance pressure to control the operation of an air compressor how it works of your air purchased. Adjusting this shut off, or upper limit, point, you need compressor ran before but had at! From all sorts of power sources 2 ½ PSI one screw works for fixed range the... A compressors always has two pressure adjustments words.. to set the cut-in pressure a. Video is a Condor MDR 11/11 pressure switch ) as you need to-first-set the cut-in.. Compressor to do the followings: -Step 1: Pre-adjustment step less than the cut-out pressure air. 2 why is it necessary to have the right air pressure gauge for the smooth of! Thing you will see two nuts with springs under them limit on an air compressor and air tools, as... To decrease the differential or counterclockwise to make the motor turn on at a lower pressure stop when it to...