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Malfunction
The fastener is not driven
deep enough
Piston jamming in exhaust
gas piston return unit
Exhaust gas piston return unit
jammed. The fastening tool
remains compressed.
No fastener driven: The fas-
tening tool fired, but no fas-
tener was driven
Fastening tool cannot be fired
*2232123*
Possible cause
Incorrect piston position in the
magazine-type fastening tool (pis-
ton not in initial position when firing
triggered)
Driving energy too low
Piston bounce because driving
energy is too high.
The piston is damaged.
Abraded material from buffer inside
the exhaust gas piston return unit.
Build-up of combustion residues.
Build-up of combustion residues.
Jamming due to dirt or fragments
of concrete.
Incorrect piston position in the
magazine-type fastening tool (pis-
ton not in initial position when firing
triggered)
Piston bounce because driving
energy is too high.
Fastening tool was not pressed
fully against the working surface.
The magazine is not loaded.
Plastic fragments in the magazine.
Incorrect piston position in the
magazine-type fastening tool (pis-
ton not in initial position when firing
triggered)
Nails in the magazine are not cor-
rectly positioned.
Fastener guide is not correctly en-
gaged.
Piston bounce because driving
energy is too high.
2232123
Action to be taken
▶ Remove the cartridge strip and
service the tool.
▶ Check piston and buffer.
→ page 13.
▶ Turn the selector ring for driving
energy to increase driving
energy.
▶ Use an extra-strong cartridge.
▶ Turn the selector ring for driving
energy to reduce driving energy.
▶ Change the piston.
▶ Check the piston and buffer and
replace if necessary.
▶ Contact Hilti Service if the
problem persists.
▶ Service the tool.
▶ Clean the cartridge chamber.
▶ Insert new cartridge strip.
▶ Service the tool.
▶ Clean the cartridge chamber.
▶ Insert new cartridge strip.
▶ Free the jammed components.
→ page 11
▶ Contact Hilti Service if the fault
/ error persists.
▶ Remove the cartridge strip and
service the tool.
▶ Check piston and buffer.
→ page 13.
▶ Turn the selector ring for driving
energy to reduce driving energy.
▶ Press the fastening tool fully
against the working surface.
▶ Load the magazine.
▶ Open the magazine, remove the
nail strip and plastic fragments.
▶ Remove the cartridge strip and
service the tool.
▶ Check piston and buffer.
→ page 13.
▶ Reload the fastening tool.
▶ Turn the fastener guide or the
magazine until it engages with
an audible click. → page 8.
▶ Turn the selector ring for driving
energy to reduce driving energy.
English
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