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Re: Nails won't set
The Bostitch should have a one-touch depth-mechanism with seven settings. You should make the required adustment(s) to this mechanism to alter the nail depth.
Note: While it is at first glance easy to use, after switching the settings a number of times it may become apparent that the coarse settings lack the refinement necessary for smooth and detailed adjustment.
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Nailers are made to use in any position so must be something simple to fix. Most likely safety contact foot, to test, remove the nails, remove the trigger to expose the firing button on the trigger valve. Connect air and dry fire onto wood or old coiled rubber hose in various positions. If the gun tests ok then carefully examine safety foot mech. and trigger for loose components missing guide or roll pin. The contact foot must push firmly up on the lever within the trigger thus pushing on the firing button. If the safety foot and trigger are in good conditon and working ok, then problem is within the headvalve and piston orings. To test piston oring, remove airline and nails, point nailer up then down again. The piston should stay in the top position. If the piston moves up /down with movement of gun, replace piston oring. If piston oring ok, remove the head and pull out the headvalve. Apply plenty of silicone paste or white grease to orings on headvalve and reinstall and test. If tests ok, then problem is worn orings in the head /headvalve. You can keep lubing or replace orings. Examine the surface within the head where headvalve orings make contact. If there are many fine scratches, even new orings will not work very well. Try to remove scratches with very fine sandpaper. Good luck
May occur when headvalve or driver is stuck (will usually make a pop or click when tigger is depressed), or tigger valve has failed or safety not actually touching trigger firing pin. Easy test, remove nails, remove trigger by pushing out 3mm roll pin or bolt to expose the firing pin. Pull back nail feeder and place the nose against piece of wood ~ depress trigger with very quick motion with finger. If it fires, reinstall trigger and adjust safety foot so that the firing pin is pushed all the way in. If does not fire, replace trigger valve (usually tva6) or remove trigger valve and replace the 3 orings on the inner plunger. If you hear a pop or click when you do test above, remove head and lube the headvalve orings with white grease or silicone paste.
Nailers will double fire or at times, the driver will hit two nails with one stroke. The first issue is caused by sensitive trigger or worn orings and the second problem is caused by faulty nails (too close together in strip ) or the driver is bent slightly allowing the driver to strike the head of the second nail in line. One way to prevent double fire is to use the single trip trigger (usually white plastic). With this trigger, you must lift the gun off the work, release the trigger and press the gun against the work and pull the trigger. If you are using the black bump fire trigger and it double fires, replace the trigger valve. The issue of the driver blade hitting two nails with one stroke can be solved by examining the driver blale for damage. The blade should have a taper on the side that faces the nails. This taper is there so that as the driver hits the first nail the taper will gently push the rest of the nails slightly into the rails out of the way. If generic nails are used, make sure that the nails are designed with the proper spacing and angle. Easy test. With the gun on its side, place a strip of nails on top of the rails with the heads aligned with the angle of the rails. Move the strip of nails so that the first nail is in the path of the driver and the heads are still aligned with the rails. The first nail should align perfectly with the angle and path of the driver. If the head of first nail is in the path of the driver however the shaft of the nail is angled toward the rails, the driver blade may hit two nails. If the point of the first nail is in the path of the driver and the head is angled back toward the rails, you may have miss fire. If the nails are perfectly aligned with the rails and the path of the driver and the driver is hitting the second nail, grind more taper at the bottom inch of the driver. Good luck
Using the web address below for reference, item number 46 is a small slider button on the nose of your gun. Push in on the slider and adjust the safety nose up into the gun for setting the nail deeper into the work. Good luck on your projects
Check that the driver is returning all the way to top of the cylinder. Driver will not return to top when lower bumper is cracked, driver is bent, or piston oring is too loose/tight or low air pressure to gun. Also check that the two inch nail is the same angle as the three in. Place the nails on the outside of the rails with the heads aligned with the rail. The first nail should align with the path of the driver. If the head of the first nail is angled back away from the path of the driver, will miss fire.
N88rh uses a full round head plastic collated nails which are spaced apart enough that the driver cannot hit two nails at once. If your are using other nails that fit into your magazine that are closer together you may in fact drive two nails at once. If, however you are using the correct nail and the nailer shoots twice, then you probable have a very sensitive firing valve. You could change the TVA6 valve or change the actual trigger. To overcome this problem of double firing and you do not want to try changing the firing valve, you need to change the trigger to sequential type instead of bump fire type. This trigger is usually white and will only permit one nail to be fired. Check www.toolpartsdirect.com or bostitch.com for parts. Good holiday
I have solved my problem, I am going to dump this bostich even though it is a brand new product that has not been used in over a year, has only fired approxamately a dozen nails and go with another product that has an honest customer relation rep that does not charge you for information on their products.
I will also remember my experiance with this company and there products