On 7 Dec 2005 10:50:36 -0800, wrote:

(I wrote, but you deleted the attribution for, )
On the Senco I used to have, the adjustment is done by changing the
length of the ram. Assuming you have enough pressure, that's all that's
left. It's a very simple mechanism.

OK. I will try my Senco nailer one more time. But I am not hopeful.

You have the owners manual, right? If not, it's on Senco's website in
PDF format.

I cannot rule out the possibility that I might have read the
instruction wrong. When I just bought the nailer, I was quite confused
by the instruction manual when I tried to load nails into the nailer.
I would not be surprised that I might have misunderstood the
instruction on adjusting depth-of-drive. On the other hand, the
mechanism in adjusting the depth-of-drive in that nailer is seemingly
quite simple: just turning a hand screw. How would I get this wrong
anyway? I don't know.

Dunno, if you gave the model number I missed it.

I am leaning toward the belief that the safety mechanism may have keep
the nailer head too far from the surface of the wood and may prevent
the nailer from countersinking the nail. That is the reason why I want
to know if another nailer may help.

See what Senco's website has to say before you spend more money. Or,
call their support folks. It's a quality product, they'll take care of
you and help you if you can be helped.

Dave Hinz