Installation Of A Gearmotor With A Shortened Arm - Nice WALKY WL1024 Instrucciones Y Advertencias Para La Instalación Y El Uso

3.4.3 - Installation of a gearmotor with a SHORTENED ARM

Important! - This part of the installation can only be carried out after 3.4.1
has been completed.
01. Determine a new maximum opening angle for the gate leaf (max 90°):
ignoring the maximum opening position established for the leaf during pro-
cedure 3.4.1, bring the leaf to a new maximum opening position, ensuring
that the angle does not exceed 90°. Then hold the gate leaf provisionally in
this position using a ground-mounted stop.
02. Determine distances A - B - C:
a) Measure distance B (fig. 10) on the column. This is the distance
between the fulcrum of rotation of the gate leaf and the surface of the col-
umn where the rear bracket of the gearmotor will be fixed.
b) On Graph 2B, mark distance B as measured, and trace a vertical line
from this point.
c) On the column, determine the value for distance A, at which to mount
the rear bracket of the gearmotor (refer to fig. 11). N.B.! - Choose a value
for A, the smaller the better, in order to keep the motor free of the
obstacle.
d) On Graph 2B, mark distance A as just measured and plot a horizontal
line from this point until it intersects with the vertical line traced earlier. The
meeting point of these lines defines distance C, i.e. the distance required
between the two pins on the slotted arm (fig. 12). Example from graph 2B:
if the value of B is 105 mm and A is 143 mm, then point C is 182.
03. Affix the gearmotor to the column (fig. 13):
a) Hold the gearmotor against the column (*) so that its vertical centre line
corresponds with the vertical line traced earlier (distance A), and its arm
corresponds with the horizontal line traced during procedure 3.4.1. Now
ensure that the gearmotor is completely levelled: if off-axis, it can cause the
automation to malfunction.
(*) Note - If the column surface is between 80 and 135 mm wide, then
before continuing with the installation, the gearmotors rear fastening brack-
et will need to be rotated by 90°. To rotate the bracket, refer to fig. 8.
b) Mark the fastening points, drill the required holes in the surface of the
column and insert the plugs; now fix the gearmotor in place using suitable
screws and washers.
04. Shorten the slotted arm (fig. 14):
a) To reduce the length of the slotted arm to value C (as established in
point 02-d), unscrew the nut, remove the stop, adjust the two pins so that
the distance between them is equal to value C, then fasten the nut in posi-
tion provisionally.
05. Checking the length C of the slotted arm in this context (fig. 15 - 16):
a) Bring the gate leaf into the fully Closed position;
b) Fully open the gearmotor arm to its maximum extent (see 15, phase 1);
c) Bring the arm up to the gate leaf and hold the fastening bracket against
the leaf: Important! - push the curved arm against the leaf, until it is
secured (maximum opening - see fig. 15, phase 1a).
d) Ensure that the gearmotor arm is levelled properly, and use a pencil to
mark the centre of the slot profile on the bracket, to enable fine adjust-
ments to be made to the closure alignment of the leaf in future (see para-
graph 3.7).
e) Provisionally attach the bracket to the gate leaf and bring the leaf into its
maximum opening position against the ground-mounted stop.
GRAPH 2B
4 – English
f) With the leaf in this position, perform the checks shown in fig. 16 (run a
wire over the two pins of the slotted arm, as far as the leaf hinge). Impor-
tant! - If, in relation to the hinge, the wire appears in position "BB" as in fig.
16, it will be necessary to extend distance C by a few millimetres. This
must be repeated until the wire reaches position "AA" as in fig. 16 and the
arm is no longer obstructed by the wall or other fixed obstacles.
06. Cutting the slotted arm (fig. 17):
After checking that the articulation is operating correctly, cut the slotted
arm in the following manner.
a) Trace a line on the slotted arm in the position exactly as indicated in fig.
23, phase 1. Then remove the arm from the bracket and cut the part of the
arm which is not required.
b) Re-assemble the components of the arm (fig. 3).
07. Affix the gearmotor arm tot he gate leaf (fig. 18):
a) Drill holes in the gate leaf at the points marked.
b) Remove the bracket from the arm and affix it to the gate leaf with suit-
able screws.
c) Attach the arm to the bracket, inserting the pin and the Benzing retaining
ring. Important - Check that the bracket and the arm are completely level.
Loosen the screws of the bracket and adjust as required to ensure level.
d) Fix the end stops to the ground permanently, in the position determined
at the start of the procedure.
Important! - Check that the gate leaf closes completely against the end
stop. To make fine adjustments to the closure alignment, refer to paragraph
3.7.
e) Finally, bring the leaf manually to around its midpoint of travel and secure
the gearmotor using the dedicated key (see chapter 3.8) Then manually
open the leaf by a few more centimetres.
08. If the gate being automated has two leaves, then to install the other gear-
motor repeat all the actions described here in chapter 3.4.