Hilti DX860-ENP Operating Instructions Manual page 13

8.2.2 Cleaning the piston guide
-NOTE-
Check that no cartridges are present in the tool. If nec-
essary, unload the tool as described at section 7.3.1.
1. Stand the tool on its grip (upside down).
2. Press the red button above the magazine and allow
en
the fastener strips to slide out of the magazine.
-CAUTION-
Parts of the tool may become very hot after a period of
use. Protective gloves must be worn if the following
maintenance procedure is carried out before the tool
has been allowed to cool down.
3. Unscrew the base plate with the fastener transport
system in a counter-clockwise direction until it is
released from the tool. Lift the base plate and fas-
tener transport system away from the tool.
4. Pull the piston out of the piston guide.
5. Pull out the catch and hold it securely in this posi-
tion.
6. Pull the piston guide upwards and out of the tool and
then release the catch.
7. Use the large wire brush (accessory) to clean the
outside and inside surfaces of the piston guide, includ-
ing the threaded section.
8. Use the small round brush to clean the cartridge
chamber and the adjacent bore for the power regu-
lating pin.
9. Lubricate the slider and the piston guide collar with
Hilti spray.
-NOTE-
Use of lubricants other than Hilti lubricant spray may
cause damage to rubber parts of the tool, especially the
piston stopper.
10.Lubricate the moving part of the fastener transport
system with Hilti lubricant spray.
11.Lubricate the guide channels in the tool with Hilti
lubricant (accessible through the ventilation slots).
12.Slide the piston guide into the tool from above until
the catch engages.
13.Pull out the catch before inserting the piston. Hold
the catch in this position until the piston is fully
inserted and its tip no longer projects from the tool.
14.Press the base plate and the fastener transport sys-
tem against the threaded section on the tool and
rotate it on in a clockwise direction until it is screwed
on as far as it will go.
15.Turn the base plate with the fastener transport sys-
tem back to its original position over the magazine.
16.Push the magazine back until it engages with the fas-
tener transport system.
8
Printed: 10.04.2017 | Doc-Nr: PUB / 5126862 / 000 / 01 Printed: 10.04.2017 | Doc-Nr: PUB / 5126862 / 000 / 00
8.3 Checking the tool after care and maintenance
After carrying out care and maintenance and before load-
ing the cartridges, check that all safety devices have
been fitted and that they function faultlessly.
-NOTE-
Use of lubricants other than Hilti lubricant spray may
cause damage to rubber parts of the tool, especially the
piston stopper.