Nail Gun Not Countersinking

[Ken Krawford]

I pulled out my PC 16GA finish nailer yesterday and used it on some soft maple. I noticed that the nail heads were just above the surface so I checked the countersink dial on the nailer and set it to maximum depth. The next nails were level with the surface. I then changed the pressure on the compressor from 90 psi to 115. Now the nails are just barely countersunk. Any suggestions?

[Grant Wilkinson]

Do you oil it from time to time?

[Paul F Franklin]

What diameter air hose are you using?

[Bill Dufour]

Are you using both hands? temperature? if it is cold in your location oil gets more viscous and slows down stuff.
Bil lD

[johnny means]

Nail length? Material?

[jack duren]

At the cabinet shops we ran at 125psi. At home I run the ssme. If you raise the pressure and it's countersink in you should be fine. Not sure if PC takes pneumatic as I or we or I only use Senco....

[Ken Krawford]

Thanks everyone for your suggestions. A bit more background: I have had this gun for quite a while and it get light, intermittent use. I've never had a problem with it countersinking until now.
The hose from the compressor to the hose reel is 1/2" and 3/8" from the reel to the gun. I dropped about 5 drops of oil in the gun and fired about 15 nails - no joy. My shop is about 66 degrees F - same conditions it's worked under before. The nails are 1 1/2" into 3/4" soft maple.

[Jim Andrew]

You might check your air line for water.