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Malfunction
The cartridge doesn't fire
Insufficient nail stand-off
Insufficient driving depth
Excessive nail stand-off
Nail stand-off varies consid-
erably
Shear breakages
*2338162*
Possible cause
Not fully pressed against the work
surface.
Firing pin damaged.
Driving energy too high.
Wrong piston inserted.
The piston is worn.
Space between metal sheet and
profile.
Fastener driven into the rib of the
beam (possibly with shear break-
age).
Supporting material is too thick, or
the thickness has changed.
Fastener driving power is too low.
Excessive build-up of foreign mat-
ter on the fastening tool.
The piston is worn.
Fastening tool is damaged.
Wrong piston inserted.
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 (see the section headed
"Criteria for replacement of wear
parts").
Fastener driven into the rib of the
beam (possibly with shear break-
age).
2338162
Action to be taken
▶ Press the fastening tool fully
against the work surface and
then pull the trigger.
▶ Contact Hilti Service.
▶ Select the appropriate cartridge
power level for the application
→ page 22.
▶ Use the correct equipment
configuration with compatible
piston and fastener.
▶ Replace the piston, stop ring
and friction ring.
▶ Avoid gaps between profile and
beam, or secure the beam on
the correct side.
▶ Check the piston; replace the
piston if necessary. Also check
for residues.
▶ Select the appropriate cartridge
power level for the application.
→ page 22
▶ Select the appropriate cartridge
power level for the application.
→ page 22
▶ Increase driving energy in
accordance with cartridge
recommendations or use a
more powerful cartridge.
▶ Clean the fastening tool.
→ page 29
▶ Replace the piston, stop ring
and friction ring.
▶ 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, stop ring
and friction ring. → page 29
▶ Check the piston; replace the
piston if necessary. Also check
for residues.
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