Troubleshooting - Hilti DX 76-PTR Mode D'emploi

2. Unscrew and remove the nail magazine (or the
fastener guide).
3. Remove the piston from the piston guide and
remove the piston brake from the nail magazine
(or fastener guide).
en 4. CAUTION It is essential that the tool is held with
the piston guide facing upwards. The piston
guide may otherwise fall out.
Open the piston guide release lever.
5. Pull the piston guide out of the tool.
NOTE Further disassembly of the piston guide is
not necessary.
6. Clean the seat of the piston guide in the tool.
7. Use the large brushes to clean the inside and
outside surfaces of the piston guide.
8. Use the small round brush to clean the bore for
the regulating pin and use the tapered brush to
clean the cartridge chamber.
9. Spray the slider and the collar of the piston guide
with Hilti lubricant spray.
10. Spray the steel parts inside the tool with Hilti
lubricant spray.
NOTE Use of lubricants other than Hilti spray
may cause damage to rubber parts.

9. Troubleshooting

WARNING
The tool must be unloaded before taking any steps to remedy faults.
Fault
Cartridges are not transpor-
ted.
Cartridge strip can't be re-
moved.
14
Printed: 07.07.2013 | Doc-Nr: PUB / 5069850 / 000 / 00
11. Check that the tool cycling grip is in its starting
12. Insert the piston guide into the tool.
13. Apply light pressure to the piston guide.
14. Close the piston release lever with light pressure
15. Insert the piston into the piston guide.
16. Fit the piston brake.
17. Screw the fastener guide (or fastener magazine)
18. Lubricate the cartridge transport mechanism by
19. Cycle the tool once with the cycling grip.
8.3 Checking the tool after care and
After carrying out care and maintenance and before
loading the cartridges, check that all safety devices
have been fitted and that they function faultlessly.
Possible cause
The cartridge strip is damaged.
The tool is damaged.
The tool is damaged or has over-
heated as a result of an excessively
high fastener driving rate.
position.
NOTE The lever can be closed only when the pis-
ton guide is pressed (several mm) into the tool.
If the lever still cannot be closed, please refer to
the information in section 9 "Troubleshooting".
applied to the piston guide.
onto the piston guide as far as it will go and then
turn it back until it engages.
applying Hilti lubricant spray in the gap in the
housing behind the cycling grip.
maintenance
Remedy
Change the cartridge strip.
See section: 7.3.1 Removing cart-
ridges from the tool 7
Contact Hilti.
Allow the tool to cool and then
carefully try again to remove the
cartridge strip. Remove the piston
guide from the tool. If a cartridge
sleeve remains jammed in the cart-
ridge chamber, use the round rod
from the cleaning set to remove it.
If this is still not possible, contact
Hilti.
NOTE
Do not attempt to forcibly remove
cartridges from the magazine strip
or tool.