Hilti DX 6-GR Manual De Instrucciones página 21

Trouble or fault
Exhaust gas piston return unit
jammed. The fastening tool
remains compressed.
The piston jams in the fas-
tener guide
Fastening tool cannot be fired Fastening tool was not pressed
9.1 Problems with fasteners in steel
Malfunction
The fastener doesn't pene-
trate deep enough
The fastener doesn't hold in
the base material
Fastener driving depth varies
*2253454*
Possible cause
Build-up of combustion residues.
Jamming due to dirt or fragments
of concrete.
The piston and/or buffer are dam-
aged.
Too much driving energy
Piston bent because tool fired
without fastener
fully against the working surface.
Incorrect piston position (piston
not in initial position when firing
triggered)
Fastener guide is not correctly en-
gaged.
Piston bounce because driving
energy is too high.
Possible cause
Driving energy too low
The application limits have been
exceeded (very hard material).
Piston bounce because driving
energy is too high.
Thin supporting steel (4­5 mm)
Incorrect piston position
Excessive build-up of foreign mat-
ter on the fastening tool.
2253454
Action to be taken
▶ Service the tool.
▶ Clean the cartridge chamber.
▶ Insert new cartridge strip.
▶ Free the jammed components.
→ page 9
▶ Contact Hilti Service if the fault
/ error persists.
▶ Unscrew the magazine, check
the piston and buffer and
replace if necessary.
▶ Turn the selector ring for driving
energy to reduce driving energy.
▶ Avoid firing the tool without a
fastener loaded.
▶ Check the straightness of the
piston; replace if necessary.
▶ Press the fastening tool fully
against the working surface.
▶ Remove the cartridge strip and
service the tool.
▶ Check piston and buffer.
→ page 11.
▶ Turn the fastener guide or the
magazine until it engages with
an audible click. → page 7.
▶ Turn the selector ring for driving
energy to reduce driving energy.
Action to be taken
▶ Turn the selector ring for driving
energy to increase driving
energy.
▶ Use an extra-strong cartridge.
▶ Use a more powerful system,
e.g. DX 76 (PTR), with corre-
sponding suitable fasteners.
▶ Turn the selector ring for driving
energy to reduce driving energy.
▶ Use a different power setting or
different cartridge power level.
▶ Remove the cartridge strip and
service the tool.
▶ Check the piston and buffer and
replace if necessary.
▶ Clean the fastening tool.
▶ If necessary, have the fastening
tool checked by Hilti Service.
English 13