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III. Replacement of
the rivet mandrel with
nosepiece with respect
to the size of the rivet nut
SIGNIFICANCE OF THE POSITION OF THE
„O" RING IN THE HANDLE
•
ATTENTION
y The position of the „O" ring in the handle is used to set
two different functions of the rivet drill adapter that are
necessary for installing rivet nuts.
y When the „O" ring is extended on the
edge of the handle (fig. 1A), the rivet
mandrel turns together with the chuck
head of the drill, which is necessary for
screwing in the rivet nut on to the rivet mandrel of the
adapter to install the nut and then for unscrewing an
already pulled rivet nut from the mandrel of the rivet
drill adapter.
y When the „O" ring is inserted in the
handle (fig. 1B), the rivet mandrel slides
in or out depending on the rotation
direction of the chuck head of the drill,
which is necessary namely for pulling the rivet nut that
is inserted in a pre-drilled hole.
•
ATTENTION
y The size of the rivet mandrel needs to be selected accor-
ding to the size of the rivet nut. The size and length of
the rivet nut must be selected to respect the diameter
and depth of the pre-drilled hole, otherwise the mate-
rial being joined will not be joined properly. The size of
the rivet nut must then correspond to the size marked
on the rivet mandrel and on the rivet nosepiece in the
form, e.g. M5, M6, etc.
•
ATTENTION
y The rivet drill adapter may only be used with rivet man-
drels and nosepieces that are supplied with this rivet
drill adapter model. Using rivet mandrels and nosepie-
ces intended for other riveting devices is not permitted
even when it is possible to screw them into this adapter
as this could result in damage to the rivet drill adapter.
The replacement of rivet mandrels is described in
individual steps of the procedure in figures 1C to 1H.
EN
a) Retract the „O" ring on the handle of the rivet drill
adapter into the handle as shown in fig. 1B.
b) Using an assembly wrench, screw out the rivet nose-
piece as shown in fig. 1C.
c) Screw out the flange as shown in fig. 1D.
d) Take the spring off the rivet mandrel as shown in fig. 1E.
e) Using an assembly wrench, screw out the rivet man-
drel as shown in fig. 1C.
f) Then screw the rivet mandrel with the marked size
corresponding to the size of the rivet nut into the
thread (fig. 1G).
Clamping the rivet drill adapter into the chuck
head of a drill (fig. 2)
a) Retract the „O" ring on the handle of the rivet drill
adapter into the handle as shown in fig. 1B.
b) Open the chuck of the drill and insert the hexagonal
shank of the rivet drill adapter fully into the chuck.
c) Then firmly clamp the chuck of the drill to properly
secure the rivet drill adapter in the drill.
IV. Installing rivet nuts
•
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 man-
drel and causes wear to the internal parts of the adapter
that is not covered by free warranty repairs/replacement
of the rivet drill adapter. In the event that the thread of
the rivet mandrel is torn out even when the lowest possi-
ble torque is set on the drill, it is necessary to select a drill
with a lower torque, otherwise the rivet mandrel thread
will become worn out.
•
WARNING
y For safe work, it is necessary to work at rotation speeds
of < 20 rpm.
y Set the lowest speed level on the drill and very gently
control the speed by slightly pulling on the trigger.
34
a) Pull the „O" ring on the handle of the rivet drill adapter
to the edge of the handle, see fig. 1A or fig. 3A.
b) Set the lowest rotation speed on the drill and set the
rotation direction of the chuck head to right.
c) In one hand, hold the rivet nut pointing in the directi-
on shown in fig. 3A and at a low rotation speed screw
the rivet mandrel into the rivet nut.
•
ATTENTION
y The rivet nut must be screwed on to the rivet mandrel
along its entire thread, however without being tighte-
ned fully, the force of holding the rivet nut between the
fingers is sufficient for screwing on to the rivet mandrel
of the adapter.
•
ATTENTION
y The rivet nut must be screwed on to the rivet mandrel
in the orientation shown in fig. 3A, otherwise it will not
be possible to screw it on to the rivet mandrel.
d) Then eliminate the gap between the screwed on rivet
nut on the mandrel and the nosepiece while turning
the chuck head to the right with the „O" ring on the
edge of the handle, see fig. 3B.
During this procedure, the rivet mandrel (axis of the
adapter) will rotate, but also at the same time the
mandrel will be gradually inserted into the rivet drill
adapter, by means of which the gap between the
rivet nut and the nosepiece is eliminated as shown in
fig. 3B. Allow the chuck head to rotate until the rivet
nut is completely naturally seated on the nosepiece as
shown in fig. 3B. Then firmly tighten all flanges and
threaded elements of the rivet drill adapter.
The gap can also be eliminated by the chuck head rota-
ting to the right with the „O" ring retracted in the handle,
whereby the mandrel is gradually inserted into the rivet
drill adapter without turning the axis of the adapter,
however, once the rivet nut is seated on the nosepiece,
the rivet nut will immediately start being pulled with
a generated reactive recoil and this procedure requires
a certain degree of experience and thus it is recommen-
ded to start with the first described method.
e) Retract the „O" ring on the handle of the rivet drill
adapter into the handle and insert the rivet nut
screwed on the rivet mandrel into the pre-drilled
hole on the axis passing though the centre of the pre-
-drilled hole (fig. 3C).
35
•
ATTENTION
y The joined materials must be safely secured prior to
installing rivet nuts.
f) Firmly grasp the handle of the rivet drill adapter
and the handle of the drill and assume a firm stable
posture, whilst for pulling nuts the rivet drill adapter
must be placed in line with the axis passing through
the centre of the pre-drilled hole.
By gently pulling the trigger of the drill (speed
< 20 rpm) whilst the chuck head rotates to the right
the rivet nut will be pulled, see fig. 3D. The pulling of
the rivet nut must achieve a firm joining of materials
as shown in fig. 3D. In the event that while the rivet
nut is being pulled, the thread of the rivet mandrel
is torn out from the rivet nut, it is necessary to set
a lower torque so that this does not happen.
•
WARNING
y When the rivet nut is pulled a force acts
on the handle of the rivet drill adapter
360°
with the tendency to deflect the handle
to the side. In the event that the handle
is not held firmly and the rotation speed
of < 20 rpm is not used, the user may be
TORQUES
injured by the handle being jolted out.
g) Then change the turning direction of the chuck
head to the left with the „O" ring retracted in the
handle (fig. 3E/1), whereby the rivet mandrel slides
out of the rivet adapter and a gap is created between
the installed rivet nut and the rivet nosepiece of the
adapter, which subsequently enables the rivet man-
drel to be screwed out of the rivet nut according to
the procedure provided below. Then extend the „O"
ring to the edge of the handle (fig. 3E/2) and by tur-
ning the chuck head to the left, screw out the rivet
mandrel from the installed rivet nut (fig. 3E).
EN
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