07.2019
The troubleshooting section is intended to direct the user or repair technician to
some of the more probable occurrences that may exist in the tool. It does not list
all possible occurrences. To master the repair of any tool you must first know
and understand how each part functions. The basic symptoms, probable causes
and solutions are listed below.
Tool stuck in closed position and piston tip at end or protruding from the tool.
Cause
– tool was overdriven or debris caught in front end
1. Inspect Front end components for damage/debris
Chipped piston
Bent piston
Fastener debris
2. Replace Buffer Assembly
Tool lacks power, may experience “poof” or “dud” loads, or fastener stand-off
Cause
– piston not fully returning or dropping before taking a shot
1. Note where power adjust level is at, Inspect power adjust
mechanism.
2. Clean Piston and Barrel Assembly
3. Inspect pawls, replace
4. Inspect piston for wear or damage
5. Inspect/replace retention ball and clip in muzzle
Tool clicks or fires once and next load
does not
advance
Cause
– Check strip tracks and load advance lever
1. Clean residue build-up in strip tracks
2. If load strip does not move at all, replace advance lever assembly
Tool skips powder loads
Cause
– Tool front end is not fully compressed before the trigger is pulled
1. The front end must be fully compressed before the trigger is pulled.
NOTE: End users moving too quickly can anticipate the shot and back
off the front end before or at the same time the trigger is pulled.
2. If the tool is equipped with a magazine, the magazine may not be fully
closed/depressed prior to pulling the trigger. This could be due to
debris within the magazine or improper magazine function.
Fastener frequently breaks during installation
Cause
– End of piston excessively worn or trying to shoot at an angle
1. Instruct user on proper 90-degree tool placement/operation
2. Replace Piston
3. Inspect end of fastener guide for wear, replace if necessary
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