How do you regulate the air pressure? I can not turn the regulator knob either way. This is a brand new compressor fresh out of the box. Is there some sort of trick when using the knob outside of mussel?
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Re: How do you utilize the air pressure control knob.
Most air pressure regulator knobs work like a "child-proof" cap on a medicine vial. It has a spring inside that keeps it dis-engaged from the tooth like gears inside. To turn the knob you must first pull out or push in the knob. You should feel some resistance from the spring inside. As you pull, you will feel the knob seat into the "teeth" inside. Then you can turn the knob and change the air pressure supplied. Note: most air regulator valves work in the opposite manner of regular water valves. Turning the knob clockwise should increase the air pressure... counter clockwise should decrease the pressure.
I hope this solution will bring you success. Best Regards, Michael Mittelsdorf
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Pressure regulator can fail giving little or no pressure at quick connect. There is a plunger inside of reg that can get stuck due to moisture/rust and /or threads of adjustment knob could strip. Back side of regulator (opposite the knob) find a hex nut. Remove nut (let out all the air from tank before removing nut) and pull plunger/spring away, clean , lube and reinstall for test. If still no joy, remove knob by moving stop pin up (tiny pin close to lip of knob and or spring clip) and turning counter clock wise. Remove the piston from cylinder of reg making note of how it was installed, lube and reinstall, make sure that the threads inside the knob are good. Replace knob and turn in to max pressure. If still no joy, replace reg or install temp air outlet. To install temp outlet, remove safety pop valve (remove all air from tank) and install tee fitting. Reinstall pop valve to one port of the tee fitting and quick connect to the other (or generic regulator ((sold at Lowes)) between quick connect). Good luck
The regulator has a very strong spring inside causing knob to get harder to turn as you increase the pressure (increase clockwise). If the knob is easy to turn most likely stripped inside. If knob gets tight as you turn then plunger at rear of regulator is stuck. On the back side of the manafold directly opposite the adjustment knob is a small nut housing a plunger. Let out all the air from the tank and remove the nut. Seperate the nut and plunger, lube and re-install. If the regulator knob is stripped you will need to replace the manafold or as a temp fix remove the safety valve (let out air from tank first) and install a tee fitting. On one port of the tee reinstall the safety valve and on second port install quick fitting for full tank pressure (or install aftermarket pressure regulator ).
Sounds like your pressure regulator needs adjustment...
Turn the knob on the pressure regulator clockwise and you should start hearing air coming out of your hose...Once air is coming out, remove your hose and keep turning the regulator till you get to your desired working pressure normally around 90 psi...leave your pressure regulator at that setting and it will stay at that setting.
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Over time water and debris will enter the regulator and cause problems. Easy to fix however. Drain air from tank and turn pressure control knob out to relieve pressure on the internal spring. Open the regulator and clean and lube the internal parts (use silicone paste lube on rubber parts). Some regulators have a small nut on the rear that should be remove to clean small piston. If parts are rusted beyond usefulness, replace with generic regulator that will fit into space. Good luck
There are usually two gages, one for the pressure in the tank, the other is for the regulated pressure in the hose going to whatever tool you have connected. I assume the tank filled up and the tank gage registers pressure in the tank. When you said you "opened the gage" I am guessing that you turned the knob counter-clockwise which would be the normal direction to open a valve. However, this is not a valve, it is a spring loaded regulator device. When you turn the knob counterclockwise you are removing all pressure from the spring which sets the regulator to allow zero pressure in the hose. Turn the knob clockwise to increase the pressure in the hose.
I hope this was helpful.
Pressure regulator can be dis-assembled and lubricated or replaced. If lip seal and pressure pin are dry, the regulator will not function correctly. I do not think that there is a repair kit but try lubing with silicone paste sold at Lowes in the plumbing department. Lowes also stocks campbell hausfeld regulators and water seperators. An upgraded regulator will provide more cfm and a greater accuracy in pressure control. To repair regulator, empty tank of air and turn regulator counter clockwise to release pressure on spring and take apart. If you do not see any way to dis-assemble, then there is a tiny pin on the lower edge of knob that must be removed before knob will thread off completely. Push pin up from under knob. Good luck
Possibly you were trying to adjust the regulator without having air flowing through it. You must squeeze the trigger on the gun and have air constantly flowing through it otherwise the regulator knob is very hard to turn against the pressure inside it. To set an accurate pressure, squeeze gun trigger (while connected to air hose) to get air flowing... then twist regulator knob out (or in the "-" direction) until air flow reads 0 on the regulator gauge. Then start twisting regulator knob the other way until you reach the desired pressure on the regulator gauge. Also make sure the regulator is attached with air flowing the correct way through it. There should be an arrow somewhere on the regulator body which should be pointing toward your spray gun.
Usually you cannot adjust the cut out pressure of the tank/motor itself, this is why they have regulators, which regulates the pressure flowing down the air lines (regulators like these dont regulate actual tank pressure cutout). To regulate air flow using the regulator knob, you actually have to have air flowing through the hose while you make the regulator/pressure adjustments as regulators regulate pressure DOWNSTREAM from the actual regulator itself.. so air flowing through is a must. Attach an air blower or something similar and let air start flowing through the hose. Now turn your regulator knob in the "-" direction to decrease regulated pressure. It is best to bring pressure all the way down to "0" first, then open the regulator up (by turning to the "+" side) and pressure will rise until you get to the desired pressure needed for the air tool in use. The tank pressure will still be between 80-125 PSI as the motor regulates and keeps the pressure in the tank between these values automatically, but your line/hose air flow pressure will remain at the regulated pressure (say 40 PSI or whatever you set using the regulator knob).