Psi Air Tools & Compressors - Popular Questions, Answers, Tips & Manuals

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Most pressure cut off switches have an adjustment screw on them where you can dial in the cut off/turn on pressures. Take a look and see if you have the adjustment screws. If you have the switch model, you can try looking up online to see how to make these adjustments.

Put amp meter to test motor draw and test capacitor as well

Pop off valve? If it is the unloader valve that is venting the air, the discharge check valve is leaking and has to be replaced.

Jump starters are usually imported generic items label engineered without much of a spare parts service. You might be lucky if you approach the supplier but most likely not. You could try repairing the compressor. They are quite simple and might even only need a squirt of WD-40 to make the valves work again and the piston to start pumping. In spite of there being no lubrication system they usually give good service and would need extensive use before they wear out. Compressing humid air would create a little water which would provide a little lubrication...

replace the pressure regulator/ control unit

Check to see if a staple is jammed. Please, disconnect first! Also make sure they are loaded the right direction. If not, they will not come out.

Probable the motor is no good and shorted.

Let it cool down and see if it will restart. The brushes could be worn. Tap the motor while pressing the start button. If it goes, then that is what the problem is.

I could be worn piston rings or a sticky or leaky valve. Good luck.

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This could possibly be, you have some water from condensation buildup inside the tank, liquid does not compress. Before this next step make sure the tank is to 0 psi! Now, there should be a relief valve Wingnut on the bottom. Loosen the wing nut and drain as needed. Then retighten the wingnut (Do not overtighten). Plug the compressor in and try it. My second suggestion is, the psi adjustment pressure knob could be faulty replace as needed!

valve or piston failure

Assuming the nailer is in good order the problem is likely with the nails - the type, style, quality of nail you are using might not suit the nailer. Some nails are poorly made and although I haven't personally measured them I suspect some nails purporting to be a particular gauge are either under or over the size. If they are imported, for instance, from a country using the metric system, they will probably be produced from sheet steel of a convenient metric dimension that is a near equivalent size, but not an exact match - 1.2 mm sheet is a tad smaller than 18 gauge while 1.3 mm is midway between 17 and 18 gauge. Just a theory you understand. Some nailers will be a little more roomy than others, especially those that have been worn in. In addition it is equally possible the nailer was designed for metric nails but exporting to a country where metric nails would be unobtainable the manufacturer specifies a near equivalent, sometimes opting for the higher number and sometimes for the lower number - we see this a lot with imported clothes and shoes.

any pressure control unit will fit that make you can get them from e-bay are any compressor repair shop

Here is a bit of info. How to Set the Regulator Pressure in 3 Easy Steps

I would guess approximately 9-10 but your best bet would be to contract Campbell Hausfield directly.,

This all that is available. https://manuals.harborfreight.com/manuals/44000-44999/44677.pdf

Probably exhaust air and most smaller compressors seem to take forever to fully charge. But would take back and have them give you new one to check if there is a difference.

It should be easy to replace the cord and fuse, or simply bypass the fuse. However, I would not recommend doing that. The only reason that I can think of for removing the wire and fuse is to prevent someone from using the compressor. A hundred pounds per square inch of pressure can cause a pressure vessel that is corroded or defective to fail explosively, which could injure someone nearby. Unless you are trained to test pressure vessels and have the proper equipment, it would be dangerous to attempt to use this device. Harbor Freight sells brand new ones for $49.95. Why take a chance on repairing this unknown and possibly dangerous compressor?