Malfunctions, Remedies And Troubleshooting - Hilti DX 460 SM Operating Instructions Manual

5. Clean the left and right-hand cartridge strip guideway,
using the enclosed scraper.
6. Spray the power regulation wheel slightly with spray.
7. Assemble the exhaust gas return unit
– the arrow on the red housing and the arrow on the
temperature sleeve of the gas return unit must align
to

9. Malfunctions, remedies and troubleshooting

Malfunctions:
Malfunction
Misfires:
Remedies:
Warning: Always remove the cartridge strip from the tool before tackling the malfunctioning described
below.
Repeated misfires:
Very large drop in driving power or very different
depths of penetration:
Piston does not return when the joist or beam is missed: Pull the cartridge strip out of the tool. Push back the
Magazine tool cannot be fired / magazine firing detent
comes into action (despite having nails in the magazine): guide using the small round brush.
The piston sticks in the piston guide and cannot be
pulled out:
Debris becomes stuck in the fastener guide
of the magazine:
Buffer wears too quickly:
Nail feed problems:
Printed: 08.07.2013 | Doc-Nr: PUB / 5129667 / 000 / 01
– push the gas return unit back in the red plastic tool
housing.
– screw the gas return unit onto the tool until it clicks
into place (button on the grip of the tool).
Elimination
See "Cartridge misfire"
(see point 5.6 under safety precautions)
Carry out the major service.
Carry out the major service.
If the tool then still displays big variations in driving
power or penetration depths, please contact your Hilti
representative.
piston using the original Hilti supplied ram-rod and
then press the tool down once or twice against the
decking to feed a new nail into the magazine.
Unload the remaining nails. Clean inside the fastener
Plastic fragments could be blocking the nail detection
mechanism.
Unscrew the exhaust gas piston return unit
(see major service / point 8.4).
Push out the piston through the cartridge chamber
using the supplied ramrod.
The piston could be jammed by rubber buffer
fragments or excessive dirt.
Pull the cartridge strip out of the tool.
Unload unused fasteners.
Unload the remaining nails.
Remove the magazine from the tool and use the
piston to drive out the jammed fastener.
Mark the joist position clearly to avoid missing.
Lubricate the transport sliders
(see minor service / point 8.3)
en
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