Fortum Proffesional 4770667 Traducción Del Manual De Uso Original página 18

REFERENCE TABLE oF mINImUm DRILL ToRqUES
(Torque measured at low rotation speeds below 20 rpm)
Dimensions
of the blind Material of the rivet
rivet
Construction/Stainless steel (INOX)
6.4 mm
Steel (Steel)
(1/4")
Aluminium (ALU)
Construction/Stainless steel (INOX)
6.0 mm
Steel (Steel)
(7/32")
Aluminium (ALU)
Construction/Stainless steel (INOX)
4.8 mm
Steel (Steel)
(3/16")
Aluminium (ALU)
Construction/Stainless steel (INOX)
4.0 mm
Steel (Steel)
(5/32")
Aluminium (ALU)
Construction/Stainless steel (INOX)
3.2 mm
Steel (Steel)
(1/8")
Aluminium (ALU)
Construction/Stainless steel (INOX)
2.4 mm
Steel (Steel)
(3/32")
Aluminium (ALU)
•
ATTENTIoN
y Into the rivet drill adapter,
screw the riveting nosepiece
marked with the number
corresponding to the blind
rivet body diameter. Using
a nosepiece intended for
a different blind rivet body
diameter will result in the rivet drill adapter not
working correctly.
Riveting nosepieces differ by the length (height) according
to the diameter of the pin (mandrel) of the blind rivet for
EN
Recommended Recommended
minimum tightening minimum tightening
torque of the drill (Nm) torque of the drill (lbf.ft)
22 16.2
17 12.5
16 11.8
16 11.8
13 9.6
12 8.9
14 10.3
12 8.9
11 8.1
10 7.4
9 6.6
8 5.9
7 5.2
6 4.4
5 3.7
4 3.0
3 2.2
2 1.5
Table 1
which they are intended in order to produce sufficient pre-
ssure on the jaws to create a hole with a sufficient diameter
for the insertion of the mandrel of the rivet of a certain dia-
meter. In the event that the dimension of the riveting nose-
piece is inadequate for the blind rivet, it will not be possible
to pull the rivet or the torn mandrel will not be released
from the jaws and then disassembly will be necessary.
•
ATTENTIoN
y Only the riveting nosepieces supplied with this
rivet drill adapter model may be used in the rivet
34
drill adapter. The fact that a nosepiece from
a different riveting device can be screwed into
this rivet drill adapter model does not ensure
the correct and problem-free operation of the
adapter and may damage it.
•
ATTENTIoN
y Table 2 presents the maximum
permissible tightening
torque values for pulling rivet
nuts with respect to their mate-
rial and size. Using a higher
torque frequently results in the
thread of the rivet mandrel
being torn out of the rivet nut (particularly on small
rivet nuts), which damages the tread of the rivet
mandrel.
y In the column „Recommended minimum drill
torque" there are torque values that the drill should
be able to achieve, representing torque values that are
not used for the rivet nut material of the specified size,
but express the recommended „drill power" such that
when the maximum permitted torque is set the drill
motor is not overloaded.
•
WARNINg
y For the installation of a rivet nut, it is essential to have
sufficient torque in order to pull the rivet nut, but it
is also necessary to ensure that the thread of the rivet
mandrel thread is not torn out of the rivet nut, which
damages the thread of the rivet mandrel. Tearing out
of the rivet mandrel thread from the rivet nut occurs
easily on smaller rivet nuts, particularly those from
aluminium. To set the correct torque with respect to the
material and the size of the rivet nut, it is necessary to
perform practical tests with respect to the maximum
permitted tightening torque values specified in table
2. Tearing out of the rivet mandrel from the thread of
the rivet nut is not the fault of the rivet drill adapter
but rather is caused by excessive (tightening) torque
of the drill.
•
ATTENTIoN
y The rivet nut must be screwed on to the rivet mandrel
along the full length of its thread. To achieve this, slide
the rivet mandrel in as far as possible by turning the
35
chuck head in the direction according to fig. 17, step 1.
Then, screw the rivet nut on to the thread of the rivet
mandrel, however by holding the nut by hand without
the use of assembly tools.
y The rivet nut must be screwed on to the thread of the
rivet mandrel in the orientation shown in fig. 17, other-
wise it will not be possible to pull the rivet nut.
•
ATTENTIoN
y To set the optimal torque and to become acquainted
with the methodology of work with the rivet drill
adapter, first perform practical tests on a piece of
sample material. Initially set a lower torque, which
can be increased if insufficient. Setting a torque that is
too high will result in the thread of the rivet mandrel
being torn out of the rivet nut, which likewise damages
the thread of the rivet mandrel and causes wear to the
internal parts of the adapter that is not covered by free
warranty repairs/replacement of the rivet drill adapter.
EN