Tools, Sharpening and Power Machinery - old paslode coil nailer won't shoot nails

I have an old coil nailer. It stopped working almost completely. the drive shaft comes down and seems to be not return so the next nail can load.

Does anyone know how to fix this? I took the top screws off the gun and there doesn't seem to be anything broken. I looked online at the paslode site at the diagrams of the new guns but they are different inside.

It seems to be that I may need new gaskets for it.

I would appreciate any suggestion to try since I would bet I will have trouble getting the replacement parts since it is old and I live in Canada (we seem to have difficult getting lots of items)


thanks for your help

As far as I know pneumatic tools need lubrication, generally it's added via the air supply line. Go to your local hardware or supply store, they should carry it.
L