32
English
2338162
*2338162*
Malfunction
Possible cause
Action to be taken
Shear breakages
Fastener driven at unsuitable posi-
tion (where base material too thick,
at edge or curved profiles).
▶
Check the fastener recommen-
dation. If the type of fastener is
correct, increase driving energy
in accordance with cartridge
recommendations or use a
more powerful cartridge.
Fastening tool does not ex-
tend
Piston jams in piston brake.
▶
Disassemble the fastening tool.
▶
Replace the piston, stop ring
and friction ring.
Cartridge strip jams, fastening tool
is overheated.
▶
See the "Cartridge strip cannot
be removed" fault. Adhere to
the maximum fastener driving
rate.
▶
Use only recommended car-
tridges → page 22.
Firing not possible
Fastening tool was not cycled cor-
rectly, the cycling grip is not in the
initial position.
▶
Cycle the fastening tool com-
pletely and set the cycling grip
to the starting position.
The trigger is pulled before the tool
is pressed fully against the working
surface.
▶
Press the fastening tool fully
against the work surface and
then pull the trigger.
Fastener transport malfunctions.
▶
Remove the fastener strip.
▶
Check the fastener strip for
damage.
▶
Replace damaged fastener
strips.
Fastening tool is damaged.
▶
Contact
Hilti
Service.
No fastener driven
Fastening tool was not cycled cor-
rectly, the cycling grip is not in the
initial position.
▶
Cycle the fastening tool com-
pletely and set the cycling grip
to the starting position.
No fastener loaded.
▶
Load a fastener into the
fastening tool.
No piston installed in the fastening
tool.
▶
Install the piston in the fastening
tool.
The piston is broken.
▶
Change the piston and stop
ring.
Piston does not return.
▶
Contact
Hilti
Service.
The fastener guide needs to be
cleaned.
▶
Service the tool.
Fasteners are jammed in the fas-
tener guide.
▶
Remove jammed fasteners.
▶
Avoid shear breakages and
misfires.
Fastener guide cannot be
fully installed.
The fastener guide needs to be
cleaned.
▶
Service the tool.
Piston cannot be installed.
Fastening tool, especially the pis-
ton guide, is dirty.
▶
Service the tool.
Summary of Contents for DX 450
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