Before Use; Operation - Hilti DX 76 Original Operating Instructions

6 Before use

NOTE
Read the operating instructions before the tool is oper-
ated for the first time.

7 Operation

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 all persons in the vicinity must wear eye
protection and a hard hat. Splintering 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.
Printed: 17.04.2014 | Doc-Nr: PUB / 5126191 / 000 / 02
6.1 Check the tool
Check that no cartridge strip is loaded in the tool. If a
cartridge strip is present in the tool, use the cycling grip
to cycle the tool several times until the cartridge strip
projects from the tool at the cartridge strip exit and it can
be pulled out and removed from the tool.
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
function correctly. If necessary, have the tool repaired at
an authorized Hilti service center.
Check the piston and piston stopper for wear and ensure
that the parts have been fitted correctly.
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 repre-
sentative for a copy of the applicable technical guidelines
or national technical regulations.
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 fas-
tened 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.
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