I have a ridgid 18v cordless finish nailer. It worked well a few weeks ago last time i used it, went to use it the other day and the driver would not retract enough to allow a nail to enter the chamber to be driven, I took it apart and retracted the driver with the piston back into the chamber, reassembled it and it doesn't act like the clutch mechanism is engaging, does anyone have any experience with these guns thanks a ton