Nice ALTO Instructions And Warnings For Installation And Use page 46

(*) Warning! - If the post surface width is between 80 and 135 mm,
before proceeding with installation, the rear gearmotor fixing bracket
must be turned through 90°. Then follow the instructions in fig. 21.
b) - Mark the fixing points, drill the holes in the post and insert the plugs;
then secure the gearmotor using adequate screws and washers.
Note - The scre s are not included in the kit as their type depends
on the material and thickness of the post in hich they are fixed.
c) - For increased stability of the gearmotor, adjust its rear feet so that
they are placed against the post. This adjustment can be made later,
when the control unit is removed from its seat for the first time (para-
graph 5.4).
04. Shortening the length of the slotted arm (fig. 16).
a) - Loosen the nut of the slotted arm, remove the stop and move the two
pins apart, checking that the distance between them is the same as
the obtained value C. Then tighten the nut, but only provisionally.
05. Checking that the length of the slotted arm is sufficient (fig. 17
and 18).
A
11
14
GRAPH 4
(see paragraph 4.1B)
300
A
250
200
150
100
50
mm
0
A
B
B
50 100
B = 145
a) - Move the gate leaf to the maximum leaf closing position against the
travel limit stop.
b) - Extend the arm and move it up towards the leaf, placing the fixing
bracket on the arm. Then, firmly press the curved arm against
the leaf (fig. 17-1a), until the two arms are completely extend-
ed; apply force at the joining point (elbo
the arms are completely extended only when the elbow blocks
against its stop.
c) - Ensure that the gearmotor arm is level (fig. 17-1b) and use a pencil
to mark the centre of the slots on the bracket (fig. 17-2), to enable
subsequent fine adjustments of leaf closure.
d) - Then provisionally fix the bracket on the leaf with a clamp or adhesive
tape and move the leaf to the maximum opening position, against the
floor-mounted travel stop.
e) - With the leaf in this position, check the gate as shown in fig. 18-1:
stretch a piece of string passing exactly above the two pins of
the slotted arm through to the leaf hinge pin. If the string is found
between the hinge pin and post in the area of the hinge pin (posi-
tion "BB" in fig. 18-2), extend the slotted arm by a few millimetres
(value "C") and repeat the check. Repeat the procedure several times
if necessary until the string is located between the gate transit zone
and the leaf hinge pin (position "AA" in fig. 18-2), and until the arm no
longer comes into contact with the fixed obstacle behind the post.
06. Cutting the slotted arm (fig. 19).
After ensuring correct operation of the entire arm, cut the excessive
part of the slotted arm as described below.
a) - Trace a line on the slotted arm in the exact position specified in phase
1 in fig. 19. Then remove the arm from the bracket and cut the
excess section of the arm.
b) - After removing any burrs found after cutting, re-assemble the arm
components with reference to fig. 7.
07. Fixing the arm on the leaf (fig. 20).
a) - Drill the leaf at the marked points; remove the bracket from the arm
and fix it to the gate leaf with adequate screws. Note - The scre s
are not included in the kit as their type depends on the material and
thickness of the post in hich they are fixed.
b) - Fix the arm to the bracket, inserting the pin and stop benzing. Impor-
tant - Check that the bracket and arm are perfectly level. If neces-
sary, loosen the bracket screws and level as required.
c) - Permanently anchor the travel stops to the floor, in the same position
as established at the beginning of paragraph 3.4.
08. Checking perfect leaf closure.
a) - Close the leaf completely and ensure that it is placed against the trav-
el stop; then shake by hand to check and ensure that the gearmo-
tor remains firmly in position. If this is not so, proceed as described
below; otherwise skip to phase 09:
1. remove the slotted arm from the fixing bracket on the leaf;
2. loosen the bracket screws and move it by a few millimetres in the
direction of the gearmotor;
EXAMPLE: if value B on the gate post
is measured at 145 mm and value A is
135 mm value C will be 210 mm
150 200
fitting). Caution! -
C
B
250
English – 10