Hilti DX 351 BT Mode D'emploi page 12

7.1 Fastening guidelines
-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.
7.1.1 Driving threaded studs
1. Mark the point where the stud is to be driven.
2. Drill a hole. Continue drilling until the drill bit cuts a
bright ring around the hole.
3. Keep the hole clean (clean away any debris, dirt, water
or other liquids).
4. Position the threaded stud in the drilled hole and then
press the tool against the working surface at right
angles.
5. Pull the trigger.
-NOTE-
Never regrind a stepped drill bit. System functionality
can otherwise no longer be acheived.
7.2 Technical guidelines
7.2.1 Recommended torque
Trec ≤ 8 Nm (5.9 ft-Ib)
Hilti screwdriver
SF 121-A
SF 150-A
SF 180-A
7.2.2 Flange thickness
Minimum flange thickness where the stud is driven into
the edge of the flange: ≥ 12 mm (0.48 in).
7.2.3 Stud spacing
Between threaded studs
Between the threaded stud and the
edge of the base material.
7.3 Power settings
Set the driving power on the tool to a value that drives
the threaded stud to the correct depth and ensures that
a good seal is achieved by the sealing washer. Start with
the lowest driving power setting and increase as neces-
sary.
7.4 Fastening gratings
X-FCM-R grating flanges
Designation Length
in mm (in)
X-FCM-R 25/30 23 mm
(0.91")
X-FCM-R 1 1 /4-1 1 /2 30 mm
(1.18")
X-FCM-R 35/40 33 mm
(1.30")
X-FCM-R 45/50 43 mm
(1.69")
Printed: 20.08.2013 | Doc-Nr: PUB / 5069825 / 000 / 02
7.5 Loading the powder-actuated tool
1. Push the threaded stud into the tool threaded end first,
as far as it will go, until it is held in place in the tool.
2. Push the cartridge strip, narrow end first, into the
guideway in the grip of the tool from below, until the
full length of the cartridge strip is within the grip. When
loading a partly-used cartridge strip, pull the cartridge
strip up out of the tool from above by hand until an
unused cartridge is in place in the cartridge chamber.
7.6 Setting the fastener driving power
1. Use the power regulation guide to determine the cor-
rect driving power setting (the power regulation guide
is enclosed in the package with the threaded studs).
Perform a test fastening to verify the guideline pow-
er setting is correct.
2. If the threaded stud is not driven in to the correct posi-
tion, adjust the driving power to an appropriate set-
ting by turning the power regulation wheel.
7.7 Driving a threaded stud
1. Position the threaded stud in the predrilled hole and
Torque setting
then press the tool against the working surface at right
11
angles.
9 2. Pull the trigger to drive the stud.
-WARNING-
8
Do not attempt to redrive the same threaded stud by
firing the tool a second time.
Do not drive studs into damaged or previously used
holes.
7.8 Unloading the powder-actuated tool
≥ 15 mm (0.59 in)
1. Check to ensure that no cartridge strip is in the tool.
If there is a cartridge strip in the tool, remove it by
≥ 6 mm (0.24 in)
pulling it upwards out of the tool from above.
Fastenable thickness
in mm (in)
25–32 mm
(0.98–1.26")
32–39 mm
(1.26–1.54")
35–42 mm
(1.38–1.65")
45–52 mm
(1.77–2.05")
en
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