Operation - Hilti DX 351 Original Operating Instructions

6. Operation

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Printed: 12.08.2013 | Doc-Nr: PUB / 5069821 / 000 / 02
WARNING
■ The base material may splinter
when a fastener is driven or frag-
ments of the cartridge strip may
fly off.
■ Flying fragments may injure parts
of the body or the eyes.
■ Wear approved eye protection
and a hard hat (users and by -
standers).
CAUTION
■ The nail or stud is driven by a car-
tridge being fired.
■ Excessive noise may damage the
hearing.
■ Wear ear protection (users and
bystanders).
WARNING
■ The tool could be made ready to
fire if pressed against a part of
the body (e.g. hand)..
■ This could cause a nail or piston
to be driven into a part of the body.
■ Never press the muzzle of the tool
against parts of the body.
WARNING
■ Under certain circumstances, the
tool could be made ready to fire
by pulling back the magazine, fas-
tener guide or the fastener by
hand.
■ When in the "ready to fire" state,
a fastener or the piston could be
driven into a part of the body.
■ For this reason, never pull back
the magazine, fastener guide or
fastener by hand.
Guidelines for optimum fastening quality
NOTE
These application recommendations must always be
observed. For more specific information, refer to the
Hilti Fastening Technology Manual, which is available
from your local Hilti organisation.
Minimum requirements
B
Fastening on steel
A = min. edge distance
B = min. spacing
C = min. base material thickness = 4 mm (
B
Fastening on concrete
A = min. edge distance
B = min. spacing
C = min. base material thickness = 100 mm (4")
Nail lengths
(These are only examples, find specific information in
the Hilti Fastening Technology Manual
ET
Fastening on concrete
Penetration depth (ET): 22–27 mm, (
ET
Fastening on steel:
Penetration depth (ET): 12 ± 2 mm, (
A
C
= 15 mm ( 5 / ")
8
= 20 mm ( 3 / ")
4
5 / ")
32
A
ET C
= 70 mm (2 3 / ")
4
= 80 mm (3 1 / ")
8
7 / "–1")
8
1 / " ± 1 / ")
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