I have a rebuild in progress on a framing nailer that seems to share the same driver technology as Metabo/Hitachi although not an exact match with the NR83A2. A safety kit is available to replace the interlock components, which were missing when I got the tool to fix. While the new kit seems to fit the tool, it does not interface with the old mechanism that would activate the upper trigger valve. Looks like I also have to replace the entire upper trigger valve assembly.
Does anyone have access to the original parts diagram or part list for this tool? I have the current revision from Southern Carlson but want to confirm the issue before I order the trigger kit.