Hilti DX 462 Mode D'emploi page 32

Fault
Piston return unit is stuck
Piston stuck in magazine fastener
guide
Fastener penetrates too deeply
Fastener does not penetrate
deeply enough
Nail bends
Printed: 08.07.2013 | Doc-Nr: PUB / 5069845 / 000 / 02
Cause
■ Carbon build-up
■ Piston and/or buffer damaged
■ Excess power when fastening on
steel
■ Tool fired with high power
without fastener in place
■ Fastener too short
■ Driving power too high
■ Fastener too long
■ Driving power too low
■ Hard and/or large aggregate in
concrete
■ Rebar close to surface of
concrete
■ Hard surface (steel)
Possible remedies
■ Manually pull the front part of
the piston return unit out of the
tool
■ Check that the correct cartridges
are used and that they are in
faultless condition.
■ Clean the tool (see 8.3–8.14)
If the problem persists:
■ Contact Hilti Repair Centre
■ Unscrew the fastener guide
■ Check buffer and piston and
replace if necessary (see 8.4)
■ Reduce fastener driving power
■ Avoid firing the tool without a
fastener in place
■ Use longer fastener
■ Reduce power setting
■ Use lighter cartridge
■ Use shorter fastener
■ Increase power setting
■ Use heavier cartridge
■ Use shorter nail
■ Use a nail with a higher applicati-
on limit
■ Use DX-Kwik (predrill)
■ Change to single fasteners
en
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