Hilti DX 462 Mode D'emploi page 31

Fault
Cartridge falls out of the
cartridge strip
en
The operator notices:
– increased contact pressure
– increased trigger force
– power regulation stiff to adjust
– cartridge strip is difficult to
remove
Varying depths of penetration
Misfire: the nail is only partly
driven into the base material
Piston is stuck in the piston return
unit and cannot be removed
26
Printed: 08.07.2013 | Doc-Nr: PUB / 5069845 / 000 / 02
Cause
■ Fastening frequency is too high
WARNING
Never attempt to pry a cartridge
from the magazine strip or tool.
■ Carbon build-up
■ Incorrect piston position
■ Carbon build-up
■ Incorrect piston position
■ Bad cartridge
■ Damaged piston
■ Buffer debris inside the piston
return unit
■ Damaged buffer
■ Carbon build-up
Possible remedies
■ Immediately discontinue using
the tool and let it cool down
■ Remove cartridge strip
■ Let the tool cool down.
■ Clean the tool and remove loose
cartridge.
If it is impossible to disassemble
the tool:
■ Contact Hilti Repair Centre
■ Clean the tool
(see 8.3–8.14)
■ Check that the correct cartridges
are used (see 1.2) and that they
are in faultless condition.
■ Remove the cartridge strip and
clean the tool (see 8.3-8.14).
Check the piston and buffer and
replace these parts if necessary
(see 8.4).
If the problem persists:
■ Contact Hilti Repair Centre
■ Remove the cartridge strip and
clean the tool (see 8.3-8.14).
Check that the correct cartridges
are used and that they are in
faultless condition.
If the problem persists:
■ Contact Hilti Repair Centre
■ Remove the cartridge strip and
clean the tool (see 8.3-8.14).
Check the piston and buffer and
replace these parts if necessary
(see 8.4).
If the problem persists:
■ Contact Hilti Repair Centre