7. Operation
en
Driving the fastener may cause
●
flying fragments (i.e. fragments of
the material fastened, the fastener
or cartridge strip etc.).
Flying fragments may injure parts
●
of the body or the eyes.
The operator and bystanders must
●
wear protective glasses and a hard
hat.
-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. Splintering mate-
rial presents a risk of injury to the eyes and body.
-CAUTION-
The fastener driving action is initiated by ignition of a
propellant charge. The user of the tool and other per-
sons 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 Using the tool
Fastening guidelines: These guidelines must be observed
at all times.
-NOTE-
For detailed information, please ask your local Hilti rep-
resentative for a copy of the applicable technical guide-
lines or national technical regulations.
7.2 Driving fasteners
7.2.1 Loading MXR fastener strips
20
Printed: 08.07.2013 | Doc-Nr: PUB / 5069855 / 000 / 01
All manuals and user guides at all-guides.com
-WARNING-
1. Insert 4 fastener strips in the magazine from above.
2. Press the last fastener strip into the magazine as far
as it will go.
7.2.2 Selecting the cartridge
1. Determine the thickness of the material to be fastened
and the strength of the supporting steel.
2. Select a suitable type of cartridge and power setting
for normal steel or high-strength steel (according to
cartridge recommendations).
7.2.3 Loading a strip of Hilti 6.8/18 M40
(=.27 CAL long) cartridges
1. Slide the cartridge strip into the cartridge loading chan-
nel from above.
2. Press the cartridge strip into the cartridge loading
channel until flush with the top edge of the channel.
7.2.4 Driving fasteners
-CAUTION-
Never attempt to redrive a fastener that has already been
driven. Use the tool only in an upright position with the
tool nosepiece (fastener exit aperture) pointing down-
wards.
-WARNING-
Never point the tool toward other persons.
1. Press the tool against the work surface at right angles.
2. Drive the fastener by pressing the trigger on the hand
grip.
7.2.5 Checking and adjusting fastener stand-off
Fastener stand-off (an indication of depth of penetra-
tion) can be adjusted by turning the power regulation
wheel on the tool (6).
Setting 1 = minimum
Setting 4 = maximum
1. Check the fastener stand-off. (5A)
2. If a fastener is not driven deeply enough, driving power
must be increased. Adjust the power regulation wheel
to the next higher setting. (5D) If a fastener is driven
too deeply, driving power must be decreased. (5E)
Adjust the power regulation wheel to the next lower
setting.
3. Drive a fastener.
4. Check the stand-off. (5A)
5. If the fastener is still not driven deeply enough or,
respectively, is driven too deeply, steps 2 to 4 must
be repeated until the correct depth is achieved. If nec-
essary, use a cartridge with a higher or lower power
rating.
7.3 Unloading the tool
7.3.1 Removing cartridges from the tool
-WARNING-