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2. Lift the fastening tool away from the working surface.
Be sure not to point it toward yourself or other persons!
▶
3. Try to pull the fastener guide to its initial position by hand.
Take your hand off the trigger and do not hold your hand in front of the muzzle!
▶
4. 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.
▶ At all times, make sure that the fastening tool is not pointing toward you or anyone else.
▶ Contact Hilti Service.
5. Service the tool. → page 32
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 32
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 32
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 33
▶ 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.
The fastener counter shows how many fasteners have been driven since the cleaning indicator
was last reset. One segment stands for 500 fasteners driven.
When 30,000 fasteners have been driven, have the tool serviced by Hilti Service.
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.
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