18 English 2194400
*2194400*
Trouble or fault Possible cause Action to be taken
Insufficient nail stand-off
The wrong piston has been fitted. ▶ Check that the right piston /
fastener combination is used.
Space between metal sheet
and profile.
Space between metal sheet and
profile
▶ Avoid gaps between profile and
beam, or secure the beam on
the correct side.
Metal sheet is deformed
Beam missing as sub-structure ▶ Mark the beam at the correct
position before positioning
the power tool for driving the
fastener.
Excessive nail stand-off
The fastener is too close to the
edge of the beam.
▶ Mark the position of the beam
and drive another fastener.
Driving power is too low. ▶ Increase the driving power
(adjust the power regulation) or
use more powerful cartridges –
if available.
The tool is clogged with dirt. ▶ Clean the tool.
The piston is broken. ▶
Change the piston and piston
stopper together (as a set).
The tool is damaged. ▶ Contact Hilti Service.
Shear breakages of fasteners The fastener was driven into the rib
of the beam.
▶ Mark the position of the rib of
the beam and then drive another
fastener alongside.
The supporting material is thicker
and/or of higher strength
▶ Increase the driving power
(adjust the power regulation) or
use more powerful cartridges –
if available.
▶ If the fastener cannot be driven
correctly even with the tool set
to the highest power setting,
the application is unsuitable.
Contact Hilti Service.
The tool remains compressed
(does not extend when pres-
sure is released).
The piston jams in the piston stop-
per.
▶ Turn the rotating sleeve and
change the piston and piston
stopper together (as a set).
→ page 14
The tool is clogged with dirt. ▶ Clean the tool.
The piston guide is clogged with
dirt.
▶ If necessary, turn the rotating
sleeve, disassemble the base
plate → page 14 and clean the
piston guide → page 14.
No fastener is driven. The piston wasn’t fitted. ▶ Fit the piston in the tool.
The piston is broken. ▶ Change the piston and piston
stopper together (as a set).
The fastener guide is clogged with
dirt.
▶ Clean the base plate and
the parts attached to it using
the brushes intended for this
purpose.
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