*2232121*
2232121 English 33
Malfunction Possible cause Action to be taken
The fastener is not driven
flush
A rebar is located just below the
concrete surface.
▶ Drive the fastener at a different
position.
Hard material (steel, concrete). ▶ Turn the selector ring for driving
energy to increase driving
energy.
▶ Use a shorter nail.
▶ Use a nail with a higher
application limit.
▶ For concrete: Use the DX-Kwik
method (predrilling) → see the
'Direct Fastening Technology
Manual'.
Concrete spalling
Hard and/or large aggregates in
the concrete.
▶ Use the DX-Kwik method
(predrilling).
Damaged fastener head
Too much driving energy. ▶ Turn the selector ring for driving
energy to reduce driving energy.
The wrong piston has been fitted. ▶ Make sure that the correct
piston / fastener combination is
used.
The piston is damaged. ▶ Change the piston.
The nail doesn’t penetrate
deeply enough
Driving energy too low ▶ Turn the selector ring for driving
energy to increase driving
energy.
▶ Use an extra-strong cartridge.
The application limits have been
exceeded (very hard material).
▶ Use a nail with a higher
application limit.
The system is unsuitable. ▶ Use a more powerful system ,
e.g. DX 76 (PTR).
The fastener doesn’t hold in
the base material
Thin supporting steel (45 mm) ▶ Use a different energy setting.
▶ Use a nail suitable for thin
supporting steel.
Fastener breakage
(shear breakage)
Driving energy too low ▶ Turn the selector ring for driving
energy to increase driving
energy.
▶ Use an extra-strong cartridge.
The application limits have been
exceeded (very hard material).
▶ Use a more powerful system,
e.g. DX 76 (PTR), with corre-
sponding suitable fasteners.
Fastener breakage
(with deformation)
Driving energy too low ▶ Turn the selector ring for driving
energy to increase driving
energy.
▶ Use an extra-strong cartridge.
The application limits have been
exceeded (very hard material).
▶ Use a more powerful system,
e.g. DX 76 (PTR), with corre-
sponding suitable fasteners.
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