Operation - Hilti DX 76 PTR Original Operating Instructions

Check all external parts of the tool for damage and check
that all controls operate faultlessly. Do not operate the
tool when parts are damaged or when the controls do not

7 Operation

en
NOTE
When you grip the tool with your other hand, care must
be taken to ensure that this hand does not cover any
ventilation slots or openings.
WARNING
The material may splinter or fragments of the magazine
strip may fly off when the fastener is driven. The user of
the tool and other persons in the immediate vicinity
must wear protective glasses and a hard hat. Splin-
tering material presents a risk of injury to the eyes and
body.
CAUTION
The fastener driving action is initiated by ignition of a pro-
pellant charge. The user of the tool and other persons
in the immediate vicinity must wear ear protectors.
Exposure to noise can cause hearing loss.
WARNING
Never make the tool ready to fire by pressing it against a
part of the body (e.g. the hand). This could cause a nail
or the piston to be driven into a part of the body. Never
press the tool against a part of the body.
CAUTION
Never redrive a fastener. This may cause the fastener
to break and the tool may jam.
CAUTION
Never drive fasteners into existing holes unless this
is recommended by Hilti.
CAUTION
If the tool has overheated, allow it to cool down. Do
not exceed the recommended fastener driving rate.
7.1 Operation
Fastening guidelines: These guidelines must be observed
at all times.
NOTE
For detailed information, please ask your local Hilti
representative for a copy of the applicable technical
guidelines or national technical regulations.
24
function correctly. If necessary, have the tool repaired at
an authorized Hilti service center.
Check the piston and piston brake for wear and ensure
that the parts have been fitted correctly.
7.2 Procedure if a cartridge fails to fire
If a cartridge fails to fire or misfires, always proceed as
follows:
Keep the nose of the tool pressed at right angles against
the working surface for 30 seconds.
If the cartridge still fails to fire, lift the tool away from
the working surface, taking care to avoid pointing it at
yourself or other persons.
Load the next cartridge on the strip by cycling the tool.
Use up the remaining cartridges on the strip and remove
the used cartridge strip from the tool. The (partly) used
cartridge strip must then be disposed of suitably in order
to prevent further use or misuse of any unfired cartridges.
7.2.1 Loading fastener strips in the magazine 2
Push the fastener strip into the magazine from above until
the washer of the final fastener engages in the magazine.
7.2.2 Selecting the cartridge 3
1. Determine the thickness of the material to be
fastened and the grade of the supporting steel.
2. Select a suitable cartridge and power setting ac-
cording to the cartridge recommendations.
NOTE For details of recommended cartridges,
please refer to the applicable approvals or the Hilti
Fastening Technology Manual.
7.2.3 Inserting the cartridge strip 4
Push the cartridge strip, as far as it will go, into the
cartridge strip guideway on the side of the tool.
7.2.4 Driving fasteners with the magazine tool 5
1. Press the tool against the working surface at right
angles.
2. Drive the fastener by pulling the trigger.
3. Prepare the tool for driving the next fastener by
pushing the cycling grip back toward the rear of the
tool and then forward to its original position.
7.2.5 Checking and adjusting fastener driving
depth 3 6
NOTE
Fastener driving depth can be adjusted by turning the
power regulation wheel on the tool (setting 1 = minimum;
setting 4 = maximum).
1. Use the test gauge to check nail stand-off.