Hilti DX 860-ENP Bedienungsanleitung Seite 26

obstructed. Do not permit foreign objects to enter the
interior of the tool.
8.2 Maintenance
Check all external parts of the tool for damage at regu-
lar intervals and check that all controls operate properly.
Do not operate the tool when parts are damaged or when
the controls do not operate properly. If necessary, have
en
the tool repaired at a Hilti service center.
Use the tool only with the recommended cartridges and
power settings. Use of the wrong cartridges or use of
excessively high power settings may lead to premature
failure of parts of the tool.
-CAUTION- when cleaning:
Never use grease for the maintenance/lubrication of
parts of the tool. This may lead to malfunctions. Use
only Hilti lubricant spray or a product of comparable
quality.
The residues deposited inside DX tools contain sub-
stances that may be injurious to your health:
– Do not inhale any dust or dirt while cleaning.
– Keep the dust or dirt away from foodstuffs.
– Wash your hands after cleaning the tool.
8.2.1 Checking and replacing the piston and piston
stopper
-NOTE-
– If the tool is used incorrectly (e.g. no fastener loaded
in the tool before firing or the fastener is driven into
unsupported sheet metal), the piston may become
jammed against the piston stopper. Should the piston
and piston stopper become fully seized in this way,
these parts have reached the end of their life. The tool
cannot be cycled when in this status.
– The condition of the piston and piston stopper must
be checked at regular intervals and at least daily.
-WARNING-
All cartridges must be removed from the tool.
1. Stand the tool on its grip (upside down).
2. Press the red button above the magazine and allow
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. Also pull the piston stopper out of the base plate
(with the aid of the piston, if necessary).
6. Check the piston and piston stopper for damage. If
signs of damage are found or the piston is jammed
against the piston stopper, the piston and piston
stopper must be replaced.
22
Printed: 08.07.2013 | Doc-Nr: PUB / 5069855 / 000 / 01
-NOTE-
Check the piston for straightness by rolling it on a smooth
surface.
Never use a worn or damaged piston and do not tam-
per with or modify the piston in any way.
7. 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.
8. Insert the piston stopper the right way round in the
base plate (rubber part toward the front).
9. Press the base plate and the fastener transport sys-
tem against the threaded section on the tool and
rotate it in a clockwise direction until it is screwed
on as far as it will go.
10.Turn the base plate with the fastener transport sys-
tem back to its original position over the magazine.
11.Push the magazine back until it engages with the fas-
tener transport system.
8.2.2 Cleaning the piston guide
-WARNING-
All cartridges must be removed from the tool.
1. Stand the tool on its grip (upside down).
2. Press the red button above the magazine and allow
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.