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Fault
Possible cause
Remedy
Fastener penetrates too deeply
(inadequate fastener stand-off).
The fastener missed the steel beam.
Mark the position of the beam. Drive
another fastener into the beam.
There is space between the sheet and
the supporting material.
Check to ensure that the sheet rests
tightly against the supporting mater-
ial.
The wrong piston has been fitted.
Check that the right combination
of piston and fastener is used.
Use the X‑76‑P‑ENP‑PTR piston
for X‑ENP fasteners. Use the
X‑76‑P‑ENP2K‑PTR piston for ENP2K
fasteners.
Fastener doesn’t penetrate
deeply enough (excessive
fastener stand-off).
Fastener driven into the rib of the
beam.
Drive a second fastener.
Supporting material is too thick, or
the thickness has changed.
Increase fastener driving power in
accordance with recommendations
or, respectively, use a more powerful
cartridge.
See section: 7.2.2
Fastener driving power is too low.
Increase fastener driving power in
accordance with recommendations
or, respectively, use a more powerful
cartridge.
See section: 7.2.2
The tool needs to be cleaned.
Clean the tool.
The piston is broken.
Change the piston and piston brake.
The tool is damaged.
Contact Hilti.
The wrong piston has been fitted.
Check that the right combination
of piston and fastener is used.
Use the X‑76‑P‑ENP‑PTR piston
for X‑ENP fasteners. Use the
X‑76‑P‑ENP2K‑PTR piston with green
mark for ENP2K fasteners.
Fastener stand-off (head projec-
tion) varies considerably.
The tool was pressed against the
working surface with a jolt.
Press the tool against the working
surface smoothly and avoid jolting.
The tool is cycled unevenly, some-
times not fully.
Cycle the tool fully.
Irregular driving power.
Clean the tool. Replace wearing parts
with new parts. Contact Hilti if irregu-
lar driving power is still experienced.
Shear breakage.
The face of the piston is worn or
chipped.
Change the piston and piston brake.
Fastener driven into the rib of the
beam.
Drive a second fastener beside the
first one.
The tool is pressed against the work-
ing surface at an angle.
Press the tool against the working
surface at right angles.
Supporting material is too thick, or
the thickness has changed.
Check that the recommended type
of fastener is used. If the right type
of fastener is used, increase driv-
ing power in accordance with cart-
ridge recommendations or use a more
powerful cartridge.
en
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Printed: 30.05.2016 | Doc-Nr: PUB / 5069849 / 000 / 04