Question about Senco SCN45 Coil Nailer, Contact or Sequential Actuation

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Trigger Fires nails when trigger is pulled what adjustment can I make for it to operate only when pressed against work project?

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There is no adjustment that can be made to make the safety work or not. When new, the SCN45 had a safety system that prevents the nailer from firing unless it was pressed against a surface. If your gun fires without the safety being compressed, it has somehow been bypassed either by being jambed or tied in the firing position or the trigger lever is wedged so it can't operate properly. Below is a site that has a great breakdown of your tool that you can reference to see what parts may be missing. This is an older tool and many parts are no longer available.
Senco SCN45 Coil Nailer Parts

Posted on Jul 17, 2014

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