Hilti DX 9-ENP Mode D'emploi page 26

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