portercable finish nailer FN250A

[retired1]

gun will fire but driver does not return. replaced damaged piston stop p.n.#886113 made very little difference. any ideas?? also where exactly does check seal p.n. 886119 set on the cylinder.

[genek]

Hello Retired1,
The check seal covers the holes on the cylinder, with the "wedge" part pointing up. Hopefully this will take care of your problem.
Gene

[retired1]

Hello Retired1,
The check seal covers the holes on the cylinder, with the "wedge" part pointing up. Hopefully this will take care of your problem.
Gene

thank you for your help, will place the check seal in that location and try again after getting my new parts