7
Troubleshooting
7.1
Remedying malfunctions after misfiring
▶ Press the nose of the tool against the working surface and pull the trigger.
➥ A click is audible, but the cartridge does not fire.
▶ Lift the tool away from the working surface. When doing so, never point the tool toward yourself
or other persons.
▶ Advance the cartridge strip manually to the next cartridge by pushing it by hand at the cartridge
feed side or, alternatively, by pulling the cartridge strip through manually to the next cartridge at
the cartridge strip exit side.
▶ Use up the remaining cartridges on the strip. The partly-used cartridge strip must then be removed
and disposed of appropriately to prevent further use or misuse of any unfired cartridges.
7.2
Clearing the jammed tool
WARNING
Risk of explosion! Cartridges may fire (explode) if handled improperly.
▶ Do not attempt to forcibly remove cartridges from the magazine strip or tool.
1. If the following conditions are met, also take this action:
Conditions: The tool was pressed against the surface but the trigger buttons were not operated.
▶ Holding the tool at right angles to a solid surface, press it against the surface and operate the trigger
buttons. Listen for the noise this produces.
Result 1 / 2
A cartridge is triggered or a clicking noise is clearly audible.
There is now no triggerable cartridge in the cartridge magazine of the tool. You can proceed to the
next step in the troubleshooting routine.
Result 2 / 2
No cartridge is triggered and no clicking noise is audible. There might be a triggerable cartridge in
the tool, but it did not trigger on account of a fault.
▶ Make sure that the muzzle of the tool is never pointed toward anyone and avoid subjecting the
tool to sharp knocks.
2. Press the nose of the tool in a few millimeters and open the rotating sleeve → page 9.
➥ The catch is now accessible and you can open the tool.
3. Pull the catch out and hold it in this position. If the tool does not open up by itself try pulling it open,
without applying more than ordinary muscle power.
Result 1 / 2
The tool can be pulled open.
▶ Proceed to the next step in the procedure.
Result 2 / 2
The tool cannot be pulled open.
▶ Do not proceed.
▶ Lay the tool aside in such a way that if the cartridge were to trigger in the tool there is no possibility
of injury to persons or damage to property, and secure the tool in such a way that no-one else has
access to it.
▶ Notify Hilti Service immediately.
4. Remove the cartridges from the tool. → page 10
5. Disassemble the base plate. → page 11
6. Check the piston and piston brake and replace these parts if necessary. → page 11
7. Clean the fastening tool. → page 12
8. Close the rotating sleeve. → page 9
7.3
Troubleshooting
If the trouble you are experiencing is not listed in this table or you are unable to remedy the problem by
yourself, please contact Hilti Service.
14
English
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