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Undocumented revision on Interchange Pro Nailer NSR83-21 trigger?

129 Views 1 Reply 1 Participant Last post by  steves7839
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.
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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.
The tool turns out to be a close cousin of the Hitachi NR83A. The local Interchange tool supplier stocks both the upgrade trigger kit and the old style safety arm that the tool was built with. It turned out less expensive to upgrade than to replace the old-style broken safety.
 
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