Question about Air Tools & Compressors
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Posted on Jan 02, 2017
Set up the pressure on the air compressor. First plug the air compressor in, then check the pressure. It should be between 90 and 110 pounds per square inch (PSI) for home use. If it is not in this range, turn the knob to the left to decrease the pressure and to the right to increase the pressure. Use the appropriate nail gun for the job. For example, to nail shoe molding to base boards, a standard finishing nail gun would be perfect. It holds any size nail between 5/8 inch and 2 inches. This nail gun could be used for many projects with great results. Check the gauge the nail gun takes before purchasing the nails for the gun. If you get the wrong gauge they will not fit in the gun. You can check this by looking at the information printed on the side of the nail gun next to the model number. You can also open the nail chamber for this information. Attach the nail gun to the air compressor. You can do this before or after you load the nails into the gun. Use the air compressor hose to attach to the bottom of the nail gun. It screws on much like the end of a hose. If you do not have the right size air hose, you can find one at your local hardware store.
Posted on Aug 27, 2008
SOURCE: bostich gun problem
If the piston/driver is broken, the gun will fire however nailing will not take place because the piston will jam in the cylinder. Sometimes the cylinder will also crack when the driver goes. If the piston is not broken but stays down, then check the cylinder check valve, worn lower bumper, bent driver or cracked cylinder. 18 guage nailer has a very thin driver which will easily bend or break. Parts however are not expensive.
Posted on Nov 25, 2008
I have seen many small bostitch guns all with different problems that did not shoot nails. Both of your guns have simillar triggers. You might try the trigger valve from the gun that works to see if that is the problem. Most no fire situations come from faulty trigger valve. The trigger valve used in your guns has a part that stays in the body of the gun; be sure to replace both parts. If still no fire check the following:
Remove the head and check if the piston/driver travels all the way down the cylinder with the tip of be blade showing at the nose. Some piston/drivers have a grove that must be aligned.
Check that the headvalve travels into the head and returns. Push the valve in with your thumb then cover the small vent hole at the base of the head where the gasket sits with your finger and release your thumb. The headvalve should be held in with vacuum then pop up when you remove your finger from the vent hole. If the headvalve does not stay pushed in with the vent covered, the orings are leaking and can cause the gun not to fire. Try lubing the headvalve with light grease such as silicone lube. Do not use bearing grease. Silicone lube is available in small amounts at plumbing supply/lumber outlets such as Lowes. It looks like wax feels like shortening.
Reassemble the gun and check your work. I test the gun with-out nails and without the trigger installed. Just place the nose of the gun on a piece of rubber, (I use a piece of heavy garden hose rolled up tightly into a coil) and press the trigger valve pin with your finger. The reason that I leave the trigger off is that sometimes the problem is caused by the safety mech not pushing the trigger pin correctly. enjoy
Posted on Nov 29, 2008
SOURCE: porter cable roofing gun
The problem that you describe could be caused by three things. First remove the cylinder and look for a black rubber band around the cylinder about med section. There is an indention with holes where it is supposed to be. The band should fit snuggly so that it does not slip off during use. Secondly, check that the piston oring/plastic ring holds the piston in the cylinder without just dropping under its own weight. Third, the upper bumper could have a crack or missing piece. Remove it and check. (vinyl part in headvalve) Parts are available at dewalt repair center or www.toolpartsdirect.com. enjoy
Posted on Dec 07, 2008
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