Tool operator must carefully follow all operating instructions and
precautions to successfully operate the tool. Following is a list of
potential situations an operator may encounter and the probable causes:
• If a tool problem occurs and technical assistance is required, please
call 1-877-ITW-BRANDS (1-877-489-2726)
WARNING: Do not operate a tool that is not functioning properly.
There are three causes for most all misfires.
• Firing pin button struck
too lightly
The major reason for inconsistent fastening is the improper position of
the piston. There are two reasons for an improperly positioned piston:
1. Failure to completely reset the piston.
2. A missed hit of the rear button.
In both cases the barrel must be fully
extended to reset the piston.
Note: It is a good practice to fully extend the
barrel and re-chamber the load after the tool is
improperly struck causing a misfire, and after
the misfire procedure has been followed.
9
TOOL FAILS TO FIRE
• Firing pin button
struck off center
INCONSISTENT FASTENER SETTING
TROUBLESHOOTING
• Tool not completely
compressed
TROUBLESHOOTING