Tt21 staple gun re assembly

SOURCE: (DP) air staple gun won't reload after shooting 1 staple

i have mini blow 8 mm gun automatic after i chut he did not reloaded plz tell how i can fixed

SOURCE: Can you get me a diaggrama to fix my staple gun

http://www.manualsonline.com/

SOURCE: duofast ms 7664c staple gun still blowing air out

This series of nailers are the most difficult to repair. Your nailer has twice as many orings as the norm. Many have said that this nailer is over-engineered. There are three areas that could cause trigger area leak. To make it simple, lets do one area at a time. Use soapy water around the trigger area to find actual leak. If air is leaking from actual trigger valve (ms719-2) and its counterpart, the cartridge (ms719-1) then these two parts need to be removed. Check for scratches in the metal of the valve. If scratched try to remove with fine paper or replace as necessary. Most leaks are due to faulty trigger valve. If air is not leaking from actual trigger valve then remove the dump valve (mn120-5) at the back of the head of gun. There should be two small allen screws then metal lid, then spring and oring. Pull out dump valve and make sure all the orings are in order. This valve should be able to move, not too tight. Use silicone paste lube on all orings (available at Lowes in plumbing department, Danco brand used for faucet orings). Reinstall dump valve and related parts and check for leaks. If air seems to be leaking from bottom of gun neer trigger, most likely problem is cycle valve (mm419-1) and related vinyl seat. These two parts are in the valve housing under the trigger. This valve also moves within its housing and seats on a vinyl oring. This part could be clear vinyl or black rubber. New seats are clear. Inspect these parts for scratches/cuts and lube with silicone paste. Hopefully you would have solved the problem with trigger valve. Good luck with your repair and do not dispare, this is one of the most difficult guns.