Hilti DX 460 Mode D'emploi page 37

Fault
Piston return unit is stuck
The tool fires but no nail is driven
Trigger cannot be pulled
Piston stuck in magazine fastener
guide
Magazine fastener guide is stuck
Printed: 08.07.2013 | Doc-Nr: PUB / 5069834 / 000 / 02
Cause
■ Carbon build-up
■ Incorrect piston position
■ Tool not fully compressed
■ Safety mechanism activated
because:
– Magazine not loaded
– Plastic debris inside the
magazine
– Incorrect piston position
– Nail incorrectly positioned in
magazine
■ Piston and/or buffer damaged
■ Plastic debris inside the
magazine
■ Excess power when fastening on
steel
■ Tool fired with high power
without fastener in place
■ Fastener guide damaged
Possible remedies
■ Manually pull the front part of the
piston return unit out of the tool
■ Check that the correct cartridges
are used (see 1.2) and that they
are in faultless condition.
■ Clean the tool (see 8.3–8.14)
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 (see 1.2) and that they
are in faultless condition.
If the problem persists:
■ Contact Hilti Repair Centre
■ Release the tool and fully com-
press it again
■ Load fastener strip
■ Open magazine, remove fastener
strip and plastic debris
■ Clean the tool (see 8.3-8.14).
If the problem persists:
■ Contact Hilti Repair Centre
■ Unscrew the magazine
■ Check buffer and piston and
replace if necessary (see 8.4)
■ Open magazine, remove fastener
strip and plastic debris
■ Change magazine
en
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