Remove plastic piston, compression spring, and metal disk from Control Knob housing and clean all parts with a paper towel or rag; don’t use anything in housing that will scratch inner wall of cylinder, but clean out any corrosion. Sit reassembled Control Knob aside until final assembly. The regulator controls air tool supply pressure coming from the tank. This valve dictates the amount of pressure or pounds per square inch (PSI) of air. Porter-Cable, Bostitch, Craftsman, Dewalt, Senco, Viair, and similar popular air compressors these days include 3 key components. Did you make this project? Regulators are usually installed to the discharge coupler of your compressor. 7. Well, life happens and I ended up with a … Still, as soon as you feel the tap catch, turn it half a turn counter-clockwise. Do Not Grind on the corners at all; the corners keep the rubber seat in place and aligned in the brass hex bushing. Adjusting the air compressor pressure regulator is an essential task that needs to be performed. Adjusting the regulator and watching the outlet gauge will tell you if the regulator is working. These step-by-step repair guides will help you safely fix what’s broken on your air compressor. Looks like you fixed it. Using a Dremel with a 1/8″ round carbide bit carefully grind a notch into the (4) sides (the center of the sides only, not the corners) of the rubber seat. But your idea works as well. Now my Central Pneumatic 3-gallon pancake air compressor, model 95275, from Harbor Freight is working again. Attached at end of copper piping run. Regulator Blowing out Air. Use the drill that came with your tap set to drill your hole. Notice depth of the notches is just enough to create a gap for air to come around the rubber when it is reassembled in the brass threaded hex bushing. Well, life happens and I ended up with a new job so this sat for two years. 19. Cheers! Apply a light coating of lubricant to the o-ring and screw brass assembly into manifold. We'd welcome it here! My air compressor turns on and holds air but when I go to use my blow gun I get a quick burst and that’s it whats the problem. To Sam: check your resale-(flea markets) for a similar unit with same regulator that you can pick up for a few dollars and donar the parts from. This regulator part flexes constantly as the compressed air flows through the regulator body, fluctuating to exert more or less pressure on the internal spring of the regulator as it works to maintain a constant downstream air pressure at the regulator setting. 4. 2. I got a great deal on my tap kit and eye bolt bringing both to under $10 before tax. Does your air compressor pressure regulator need to be adjusted? Mine was 1/2". Tap kit the same size and thread count as your eye-bolt. 15. Be sure the metal disk’s cupped side is facing to the bottom / inside of the Control Knob. Carefully remove the spring with it’s rubber seat, clean both parts. Reassemble top half of plastic cover to compressor. Your air compressor will not build pressure. The compressor increased the pressure. The knob was freely spinning which told me that it had stripped out so I would need a repair kit. A pressure regulator is a valve that controls air flow from a compressor. This o-ring will be fairly easy to cut if not careful. Pull the knob out (you can see the stripped threads). Manufactured by: ... Home and Auto Maintenance 8 Gallon Air Compressor with Inflation Kit. In those two years, I gave my little air compressor to my dad who occasionally has a need for one. I did find that you can buy the whole regulator assembly for $50, but that seemed excessive for what was broken. Use WD-40 to lubricate your drill and plunge VERY slowly. 17. Campbell Hausfeld Compressor Regulator RE206203AV Great prices, same day shipping and no hassle returns. Press in until completely seated like in picture 5. It displays the pressure setting on the regulator, and the pressure that the air tools will get from the compressor tank, as long as 1) the regulator pressure is set equal to or LOWER than the tank pressure and 2) the air tool uses less air to run than can be built by the compressor. Turn off the power to the air compressor… You will need a tap and drill to match your bolt size and thread count. Replace the regulator if it doesn't properly regulate supply air pressure. Master Tool Repair is an authorized re-seller of all products listed throughout our site. It is very kind of him to take the time to put this down and send it to me for inclusion on this site. If you wonder why a compressor regulator leaks, you have come to the right page. It is better to find out that you messed up now than after you have everything together. The air compressor unloader valve is usually built into the pressure switch assembly. When that doesn't happen—maybe the tank won't hold air, the pressure gauge isn't working or the safety valve keeps popping open—Sears PartsDirect has the troubleshooting guidance to get your air compressor back in good working condition. This is an important action that you need to do. Pay close attention to how it was assembled, I laid mine out on my bench in the order that it came out of the unit. I will follow up with this repair to make it better. For me, this was just four screws and then popping out the nylon insert and spring. What has happened, due to the type of material, from pressure and moisture the rubber has swelled to the extent that an adequate amount of air cannot pass around the sides of the rubber seat. View all. The air pressure in the tank forces the Control Knob’s plastic piston to move back into the Control Knob/Regulator’s housing thus preventing damage to the plastic piston when disassembling. Nice repair. Then do an Internet search for that part. by: Doug in s.d.ca. After that, any tool that you want to use can be connected to the tank. Replace the vent valve and run the compressor until the automatic shutoff turns the motor off. Thanks. Although the disc seats well on top of the rest of the piston, the regulator now leaks air when attempting to dial in a pressure. DEWALT 513002700 Regulator Repair Kit. 12. The regulator could not adjust the pressure. May 1, 2015. Once the air pressure has reached the highest level, the compressor turns off. Step-by-Step Instructions to Repair Air Compressor with a faulty regulator that does not allow adequate air pressure to come out of air hose. BE VERY CAREFUL NOT TO GRIND TO DEEP. Check Porter Cable- Bostitch- Central Pneumatic to mention a few. Good job . Others may have an issue with this. DeWalt D55149/D55168 Compressor 4 Pack Regulator Bonnet # N148120SV-4PK. With a large flat screwdriver unscrew brass tank pressure seal assembly. 48. Thanks in Advance. When (the compressor) tank has plenty of air but you only get a short burst of air pressure (only momentarily) out of air hose and compressor’s air hose gauge goes to zero. 20. Be sure to not grind any where close to this sealing groove in the rubber or your tank will no longer hold pressure when stored. A friend was going to toss this in the trash because of a bad regulator. If you eliminate the regulator, you are supplying tank pressure to the hose. $29.48 $ 29. HU502000AV. Response: Well Dave, the originator of these instructions was Ed Parks, and we would very much like to send him your comment but have no way of reaching him. I hope he reads your kind words. Campbell Hausfeld. If you wish to be updated when new comments are posted, add: about-air-compressors.com/feed/ to your RSS reader. 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. ". They are expensive enough to warrant dismantling and repairing rather than tossing them out. Genuine OEM Air Compressor Regulator Repair Kit D55168 D55167 D55684 for DeWalt. If doesn't happen often, but when it does, it wastes expensive compressed air and causes your air compressor to cycle more frequently than necessary resulting in energy loss … If you are having problems with you Bostitch 6 gallon air compressor, you should learn how to fix it. – December 2020, The compressor appears to compress the air but there no air at the hose on a 921.166460 – December 2020, Bambi 75/250 won’t build air after being on its side – November 2020, About Different Brands of Air Compressors, Want to bragg about your gorgeous computer rebuild? Regulators routinely have an air gauge attached to them that can be adjusted manually by a knob, or have a fixed nut to monitor the set-point downstream flow. Mine was too big so I had to add it after I had reassembled the unit. The part causing the problem is the rubber Tank Pressure Seat. Design and 3D Print a Modern and Cozy Reading Light. Putting it together, I just needed to push down on the head of the Tank Pressure Seal to compress the spring and start threading it in a little by hand, and then I could use the socket wrench to tighten it the rest of the way. The typical DIY compressor air regulator does not enjoy a good supply of parts. 18. Tap your hole. This fix will now allow an adequate amount of air to pass around the rubber seat that had swelled over time. This left me with a barely working behemoth. I found the old fittings to be in decent shape, despite … There is a flexible diaphragm inside the regulator which holds the air. This involves a few simple steps. Then, take apart the housing. Regulator leaking air – rubber fitting inside needs replacement. If you are using the compressor for a long time, this diaphragm gets cracked. If you completely unscrew the regulator your line pressure just drops to zero and you have to put the bolt back in place. You should pull the cover and make sure it’s the regulator that’s doing the leaking… If it’s the reg, a $21 repair kit is available. Since this is brass you won't need to work as hard. The air compressor regulator is designed to vent downstream air for easy adjustment and regulate air pressure output up to 150 PSI to prevent accidental pressure changes as you work. Clean inside of manifold with a paper towel or rag. You may be able to do this with the eye bolt in place if the eye is small enough. More Buying Choices $24.99 (11 new offers) PneumaticPlus SAW4000M-N04BG Compressed Air Filter Regulator Combo Piggyback Style 1/2" NPT - Manual Drain, Poly Bowl, 10 Micron with Gauge. Mine was sticking and letting air out as fast as the compressor could put it in. Air Compressor Regulator Repair Kit D55168 D55167 D55684 for DeWalt Craftsman Porter Cable Black and Decker. Apply a coating of lubricant to the Regulator Control Knob assembly’s o-ring and also to it’s mating surface of the manifold. Now release all air pressure from tank using the water drain valve on bottom of tank. When an air compressor is turned on, the air begins to accumulate in the tank, which increases the amount of pressure built up. Mine is now in working condition and I hope yours is as well! Just tighten snugly – no need to overly tighten o-ring seals -, just good and snug (to tight will cut o-ring). Yippee! 14. Or, remove the cover from the switch (unplug the compressor first) and locate the pressure switch part number. Will be tight but be gentle so as not to damage o-ring seal. Reassemble your unit. Fix an Air Compressor Regulator for Under $10. Contact the air compressor repair manufacturer to buy a new assembly. It starts to fill the compressor tank with air, increasing pressure constantly. 16. 21. Get a Coleman Powermate Sanborn E100059 Regulator, 1/4. If your air compressor won’t shut off after reaching full cut-out pressure or won’t start again after tank pressure drops, the pressure switch might be the problem. I have a Hitachi ec710s compressor with the same regulator shown here, above. I finally had a real job to do and needed this working so I went online to buy the repair kit only to find out that it is no longer manufactured. To Jim Parks: Thanks for posting this repair-exactly the part that failed in my unit-CP95275.Unfortunately, my rubber seat had disintegrated due to age so I had to fabricate one from a rubber plumbing seat used in older faucets. I’m stumped at this point since air appears to be leaking where the disc (with the… Read more ». This is ok if you are using the air compressor to air up tires and blow things off with a nozzle but if you are using air … Air regulators have quick-release couplers and pressure lines attached to them which feed air tools and other hardware. You are able to completely unscrew your regulator knob. If you have a tap kit already, this whole project will cost under $2. Make it as straight as possible. The regulator controls the amount of pressure leaving your air compressor tank. No need to remove the rubber seat from the compression spring. You will need an eye bolt with a shank that is larger than the hole from the knob. : A friend was going to toss this in the trash because of a bad regulator. 10. This will cause the air compressor leaking air from regulator. Do not remove o-ring unless you plan on replacing it. DeWalt D55146 Compressor Replacement Pressure Gauge (2 Pack) # A18885-2PK. It comes with at least three major components, namely the tank, regulator, and pump. Note added: I didn’t have a screwdriver big enough to remove the Tank Pressure Seal, but a socket wrench worked very well. But if it’s the manifold, you’re looking at $130 for a new one. Turn the red Control Knob clockwise and the plastic piston with post in the middle (in above picture 5) will be pushed out. When (the compressor) tank has plenty of air but you only get a short burst of air pressure (only momentarily) out of air hose and compressor’s air hose gauge goes to zero. If you have this issue this is the place for you. where can i find the small plastix piece which holds the 2 o-rings?. by john (germantown, md) Hello, I have a 240volt 33 gallon craftsman air compressor 919.152932, that builds up pressure fine however air is leaking out of the regulator (AC-0007). Reassemble the above parts. This isn't a big deal to me. First of all, the air compressor is turned on. Depending on where your switch is you may need to disconnect it. 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A flexible diaphragm inside the regulator, you ’ re looking at $ 130 for a new job so sat!