Cheers! 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. 15. The item inside the regulator that keeps the air flow from leaking out is the diaphragm. 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. D55146 regulator repair kit – available from… Photo: Amazon.com _____ 55146 leaks air around Regulator. I am very happy to extend from all of us thanks to Ed Parks for these instructions on fixing an air regulator. Turn Regulator Control Knob counter-clockwise all the way and release all pressure from air hose connector. A pressure regulator is a valve that controls air flow from a compressor. Reassemble your unit. This isn't a big deal to me. Air Compressor Regulator Repair Kit D55168 D55167 D55684 for DeWalt Craftsman Porter Cable Black and Decker. I have a model C3151-1 which is a 4 1/2 gallon portable compressor. 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. It comes with at least three major components, namely the tank, regulator, and pump. Master Tool Repair is an authorized re-seller of all products listed throughout our site. Others may have an issue with this. Get a Coleman Powermate Sanborn E100059 Regulator, 1/4. Test your fit. hello, Manufacturer #: RE206203AV. 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. Regulator leaking air – rubber fitting inside needs replacement. These step-by-step repair guides will help you safely fix what’s broken on your air compressor. Clean inside of manifold with a paper towel or rag. I did find that you can buy the whole regulator assembly for $50, but that seemed excessive for what was broken. You have a very informative site, and I greatly appreciate your work. 9. 20. 19. This will clear the jam and allow for a very nice and smooth thread. Use the drill that came with your tap set to drill your hole. There will be just enough room to get wrench on at an angle with bottom plastic housing still in place when the Control Knob is completely screwed out. The typical DIY compressor air regulator does not enjoy a good supply of parts. Hi Dave. When an air compressor is turned on, the air begins to accumulate in the tank, which increases the amount of pressure built up. Apply a very thin film of Teflon or Silicon lube or o-ring grease to the rubber and reassembly into brass threaded hex bushing. You will need an eye bolt with a shank that is larger than the hole from the knob. where can i find the small plastix piece which holds the 2 o-rings?. Do not remove o-ring unless you plan on replacing it. 1. Porter-Cable, Bostitch, Craftsman, Dewalt, Senco, Viair, and similar popular air compressors these days include 3 key components. Check Porter Cable- Bostitch- Central Pneumatic to mention a few. 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. The regulator controls the amount of pressure leaving your air compressor tank. The air compressor unloader valve is usually built into the pressure switch assembly. 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. If you are having problems with you Bostitch 6 gallon air compressor, you should learn how to fix it. ". 10. Mine was 1/2". Reassemble top half of plastic cover to compressor. Thanks in Advance. It is easier to get these parts reassembled if you hold the parts as pictured below (on the crescent wrench) in your hand and place the Control Knob on top of them pressing them into the Control Knob housing carefully, not to damage the o-rings. Eye bolt with a shank a bit bigger than your existing hole (mine was 1/2"). Or, remove the cover from the switch (unplug the compressor first) and locate the pressure switch part number. There is a flexible diaphragm inside the regulator which holds the air. An air compressor is a handy DIY tool when it's working correctly. 21. Now release all air pressure from tank using the water drain valve on bottom of tank. You may be able to do this with the eye bolt in place if the eye is small enough. Apply a coating of lubricant to the Regulator Control Knob assembly’s o-ring and also to it’s mating surface of the manifold. Turn the red Control Knob clockwise and the plastic piston with post in the middle (in above picture 5) will be pushed out. Before, it would only do one brief puff of air, and then the regulator pressure gauge would bottom out at zero, and have no more pressure, even though the tank was fully pressurized. 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. With a large flat screwdriver unscrew brass tank pressure seal 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. First of all, the air compressor is turned on. The regulator could not adjust the pressure. Regulators are usually installed to the discharge coupler of your compressor. 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