Hilti DX 76 Manual page 34

Malfunction
Metal sheet is deformed
Excessive nail stand-off
Nail stand-off varies consid-
erably
Shear breakages of fasteners
during fastener driving
Fastening tool does not ex-
tend
Firing not possible
28 English
Possible cause
Beam missing as sub-structure
Fastener driven into rib of beam
Supporting material thickness
changed
Insufficient driving energy
Excessive build-up of foreign mat-
ter on the fastening tool
The piston is worn
Fastening tool is damaged
Wrong piston used
The fastening tool was rammed
hard against the working surface
Irregular, partly incomplete cycling
Irregular driving energy
The face of the piston is worn or
chipped.
Fastener driven into rib of beam
Supporting material is too thick, or
the thickness has changed
Piston jams in piston brake
Excessive build-up of foreign mat-
ter on the fastening tool
Cartridge strip jams, fastening tool
is overheated
Fastening tool was not cycled cor-
rectly, the cycling grip is not in the
starting position
Action to be taken
▶ Mark the beam at the correct
position before positioning
the power tool for driving the
fastener.
▶ Drive a second fastener beside
the first one.
▶ Select a cartridge.
▶ Increase driving energy in
accordance with cartridge
recommendations or use a
more powerful cartridge.
▶ Select a cartridge.
▶ Increase driving energy in
accordance with cartridge
recommendations or use a
more powerful cartridge.
▶ Clean the fastening tool. Check
the straightness of the piston.
▶ Change the piston and the
piston stopper.
▶ Contact Hilti Service.
▶ Use the correct equipment
configuration with compatible
piston and fastener.
▶ Avoid ramming the fastening
tool against the work surface.
▶ Cycle the tool completely.
▶ Service the tool.
▶ Contact Hilti service.
▶ Replace the piston and the
piston stopper.
▶ Drive a second fastener beside
the first one.
▶ 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.
▶ Remove the nail magazine or
the fastener guide.
▶ Change the piston and the
piston stopper.
▶ Install the nail magazine or the
fastener guide.
▶ Service the tool.
▶ See the "Cartridge strip cannot
be removed" fault. Adhere to
the maximum fastener driving
rate.
▶ Cycle the fastening tool com-
pletely and set the cycling grip
to the starting position.
282470
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