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