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103500
Troubleshooting Guide
Piston hangs out
of muzzle.
Overdriven fastener.
Piston jammed.
Power load strip will
not advance.
Reduction or loss
of power.
Tool does not
completely depress.
Tool does not fire.
Tool does not fire.
Opening and closing
of barrel or pushing
down on
tool, etc. is not
smooth but is
rough or binds.
PROBLEM
Tool overdriven.
Piston not properly as-
sembled in relation to barrel
stop.
Broken piston or piston ring.
Excessive power.
Overdriving of fastener (see
above).
Advance bar or spring dam-
aged
Tool dirty.
Piston not returning to full
rear position.
Worn piston ring or broken
piston.
Misassembled or damaged
sear holder and firing pin
parts.
Failure of tool to depress
completely.
Piston not fully reset.
Dirt buildup on sear holder
not allowing proper penetra-
tion of firing pin or worn firing
pin.
Lack of proper cleaning.
POSSIBLE CAUSE
Tap piston on hard surface
until piston is pushed back
into the guide. (See “Over-
driven Fastener” below)
Remove barrel assembly
(see pages 18-22). Replace
all damaged or missing parts.
Replace piston or piston ring
or take tool to your distributor.
Change either to next lower
power load or next longer
length fastener.
Remove barrel assembly
(see pages 18-22). Replace
other parts if damaged.
Replace advance bar or
springs.
Clean tool. Notice: Do not
attempt to clean power load
strip channel with wire brush.
You may damage tool.
Barrel must be opened to the
full extended position to
properly position piston.
Replace piston and/or piston
ring or take tool to your dis-
tributor.
Remove sear holder and
check all parts for correct fit
assembly.
See data listed under “Tool
does not completely de-
press,” above.
Fully reset piston. See step 1
under OPERATION, page
14.
Check firing pin mark on
power load. Clean sear
holder, sear and firing pin.
Replace worn or damaged
parts. Notice: Do not attempt
to clean power load strip
channel with wire brush. You
may damage tool.
Inspect and clean complete
tool. Replace worn or dam-
aged parts. Notice: Do not
attempt to clean power load
strip channel with wire brush.
You may damage tool.
REMEDY