Hilti DX 351-CT Manual De Instrucciones página 31

Fault
The piston jams in the fastener
guide.
The nail bends.
Concrete spalling.
The fastener doesn't penetrate
the concrete deeply enough.
Possible cause
The piston is damaged.
Use of excessively high driving power
on steel.
Firing the tool at a high power setting
without a fastener loaded.
Hard and/or large aggregates in the
concrete.
A rebar is located just below the con-
crete surface.
Hard surface.
High-strength concrete. Hard and/or
large aggregates in the concrete. Old
concrete.
Driving power is too low.
The application limits have been ex-
ceeded (very hard material).
Remedy
Unscrew the black housing.
Check the piston and replace it if ne-
cessary.
Reduce the driving power.
Avoid firing the tool without a fastener
loaded.
Use a shorter fastener if permissible.
Use a nail with a higher application
limit.
Use a different system.
Adjust the driving power.
Use a different system. e.g. DX-Kwik.
Increase driving power or use a more
powerful cartridge.
Use a stronger fastener.
en
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