Just bought a Senco framepro 502 nailer and got it home, added oil and nails and tried it out. The first few nails fired fine but way too deep.I backed the air off to 80# and still too deep plus misfires. at 70#, depth is better but only 1 of 4 or 5 fires. the manuel is of no help and doesnt even mention depth of drive, the only adj. I can see, is on the trigger and i dont want to mess with it with some sort of guidence. I’m shooting 2 3/8 frh galv ring shanks into an old 2×4 edge. Any suggestions would bee greatly appreciated.
Chris
Replies
I use these same guns in a prefab. house building factory they are very hard to adjust, you have to use the allen key tool to adjust them its a try and test process , I find that if I set them perfect for OSB sheating over framing, when I go back to framing only I got to reset them again so we use two per team one set for OSB or Plywood nailing and the other set for framing only,I much prefer paper collation nails then coiled nails guns who shoot metal pins out to our faces or forarms .even uf they do hold much more nails in their magazine other brands of nailers have a wheel adjustement to set for an adjustable depth-of-drive
You can't control depth of drive with the air pressure. Wood varies too much! Think knots for really hard and in between for the soft areas.
You need some means of controlling the travel or hold off distance from the work. Most tools have some adjustment for this. Maybe a nose piece?
I just checked the instructions and it looks like there is a bolt or screw on the front to control depth, just unscrew it to get the depth you need.
Edited 10/4/2009 11:48 pm ET by USAnigel
That gun should run at 90-110 psi minimum; it is misfiring because you are not giving the gun enough pressure to re-set itself after each shot.
The nosepiece on nailguns is adjustabled. Finishing guns usually have a thumbwheel to make this adjustment easily; on most framers you need to use an Allen key. If there is an adjustment thumbwheel on your gun's trigger, that may be the adjustment for the nosepiece; they are linked because the nosepiece controls the safety trigger lock-out mechanism.
BTW, it is normal for a framing nailer to countersink nails a bit. An eighth or a tad more is fairly standard.
Dinosaur
How now, Mighty Sauron, that thou art not brought
low by this? For thine evil pales before that which
foolish men call Justice....
What Bad Pete said. Allen key adjustment.
Always go with the guy who uses your exact tool and makes it work daily.
My Hitachi has a thumb wheel adjustment, but Hitachi is not Senco.
My air tool distributor / gun repair / purveyor of fine nails told me to never back the pressure off to below 90 or raise it above 110 unless I wanted to visit the repair department frequently.
A little oil on a regular basis and 90 to 110 makes happy guns for a long time.
Jim