Hilti DX 76 Manual page 30

7.2 Cartridge does not fire when fastening tool is above operating temperature
At all times, make sure that the fastening tool is not pointing toward you or anyone else!
1. Keep the fastening tool pressed against the work surface for at least 10 seconds and trigger the fastening
tool again.
2. If the cartridge still does not fire, wait for 10 seconds and then lift the fastening tool away from the work
surface.
3. Immediately pull the cartridge strip out of the fastening tool.
▶ If the cartridge strip cannot be removed:
▶ Allow the fastening tool to cool down at a safe location under observation.
▶ Contact Hilti Service.
4. Service the tool. → page 25
5. Move the cartridge to a safe location.
6. Dispose of the cartridges that have not fired.
▶ Comply with the locally applicable disposal regulations.
7. Allow the fastening tool to cool down and resume work with a new cartridge strip.
7.3 The cartridge does not fire when the fastening tool is at operating temperature
1. Stop using the tool immediately.
2. Unload the fastening tool (cartridges and fasteners) and dismantle the fastening tool. → page 25
3. Check that you are using the correct combination of fastener guides, piston, fasteners and cartridge.
4. Check the buffer, piston and fastener guides for wear; replace the components as necessary.
5. Clean and oil the fastening tool. → page 26
▶ If the problem persists after the measures described above have been taken, further use of the
fastening tool is not permissible.
▶ Have the fastening tool checked and, if necessary, repaired by Hilti Service.
Dirt and residues build up in the tool under normal operating conditions and functional parts are
also subject to wear.
Service the tool at regular intervals. Check the piston and buffer daily if the fastening tool is used
intensively, or at the latest after every 2500 to 3000 fasteners. The interval corresponds to the
regular cleaning cycle of the fastening tool. The service and cleaning cycles are based on typical
tool use.
8 Care and maintenance
8.1 Care of the fastening tool
For cleaning, use only the cleaning accessories supplied by Hilti, or material of equivalent quality. Do not,
under any circumstances, use spray cleaning equipment, compressed air, high-pressure cleaning equipment,
solvents or water for cleaning.
CAUTION
Risk of damage to the fastening tool! Foreign bodies can jam in the fastening tool and damage the
fastening tool when a cartridge is fired.
▶ Prevent foreign bodies from penetrating into the interior of the fastening tool.
▶ Clean the exterior of the fastening tool with a slightly damp cloth at regular intervals.
8.2 Maintenance
WARNING
Dangerous substances The deposits inside DX tools contain substances that may present a health hazard.
▶ Do not inhale dust or dirt while cleaning.
▶ Keep dust and dirt away from foodstuffs.
▶ Wash your hands after cleaning the fastening tool.
▶ Clean the fastening tool and use Hilti spray as stated in the operating instructions. This will help prevent
malfunctions.
1. Regularly check all external parts of the fastening tool for damage.
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