Hilti DX 351 M&E Manual page 36

Malfunction
Fastener breakage
(with deformation)
The head of the nail punches
through the material fastened
9.3 Problems with the cartridges
Malfunction
The cartridge strip doesn't
advance
Cartridge strip is difficult to
remove.
The cartridge doesn't fire
The cartridge strip melts
30 English
Possible cause
The application limits have been
exceeded (very hard material).
Too much driving energy.
Too much driving energy
Possible cause
The cartridge strip is damaged.
Fastening tool damaged.
Wrong cartridge strip used
Trigger not fully pulled
Fastening tool overheated.
Build-up of combustion residues.
Bad cartridge.
Fastening tool dirty.
Fastening tool was not pressed
fully against the working surface.
Wrong combination of fastener,
fastener guide, etc.
Fastening tool was pressed against
the working surface for too long.
Fastener driving rate too high (fas-
tening tool overheated).
Action to be taken
▶ Use a more powerful system,
e.g. DX 6, with corresponding
suitable fasteners.
▶ Turn the adjusting knob for
driving energy to reduce driving
energy.
▶ Turn the adjusting knob for
driving energy to reduce driving
energy.
▶ Use a less powerful cartridge.
Action to be taken
▶ Change the cartridge strip.
▶ Contact Hilti Service.
▶ Use only cartridge strips of a
type intended for use with the
fastening tool.
▶ Always pull the trigger to the
full extent of its travel to drive a
fastener.
▶ Allow the fastening tool to
cool down under constant
observation.
▶ Subsequently, carefully remove
the cartridge strip from the
fastening tool.
▶ Service the tool.
▶ Insert new cartridge strip.
▶ Pull the cartridge strip through
to the next cartridge.
▶ Service the tool.
▶ Press the fastening tool fully
against the working surface.
▶ Check that the combination of
fastener, fastener guide, etc. is
correct for your application.
▶ Remove cartridge strip and
insert a new cartridge strip
instead.
▶ Fire the fastening tool sooner
after pressing it against the
working surface.
▶ Stop using the tool immediately.
▶ Remove cartridge strips and
allow the fastening tool to cool
down.
▶ Do not exceed the recom-
mended maximum fastener
driving rate (see the section
headed "Technical data").
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