Question about Senco Air Tools & Compressors
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Posted on Jan 02, 2017
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
SOURCE: Senco SFN1 wont work
I have worked on many sfn1 with the problem that you describe. Here are a few things to check. Driver/piston too tight or too loose in cylinder or bent. It should be relatively easy to move the driver piston up/down the cylinder. Usually it should hold it's own weight and not drop down the cylinder. There is a washer that should be at the bottom of the gun under the bumper (washer part# bf0070). This washer must not be worn to the point that too much air will leak past or missing. Finally there is an oring that controlls return of piston (part # lb0077). Pull out the cylinder and find it located on the outer part of the cylinder close to bottom. Clean the port holes under the oring and make sure that the oring fits snuggly. Do not use oil in this gun. Oil will swell the rubber parts. I use silicone lube available form Lowes in the plumbing department. The grease is used to lube faucet orings. Good luck with your repair and email if you have questions.
Posted on Mar 16, 2009
check the magazine bolts are tight and that the magazine is snug aginst the nose. also be sure you are using 16 gage brads and not 18 gage
Posted on Feb 14, 2010
Senco uses 33 degree paper tape clip head, however many generic brands will label their box 30-34 degree to fit several nailers. This practice causes jams in some guns and others work fine. The goal is to save money but could cost more in the long run if gun is damaged. You can use generic (other than 33) if you take a strip of nails and place them against the outside of the rails aligned with either the line of driver path of angle of the rails. This will give you a visual as to the alignment. Best result is when the complete nail is in line with the path of driver. Next best result is when the head is in the path of driver and point of nail is slightly away from path, worst is when point hits path and head is back. Good luck
Posted on Mar 27, 2011
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