RIB RAPID S Mode D'emploi page 36

G
B
BOOM ARM ASSEMBLING
To assemble the boom arm follow these 3 steps:
1 - Insert the boom hub in a vertical position in the spline shaft (Fig. 3). Attach the backplate
to the hub with 2 screws DTB10X50, 2 washers DRL10X20Z and 2 nuts M10 (Fig. 4), making
sure to tighten the screws in an alternating manner in which the strike is parallel to the
plane of the hub.
2 - Fix the U shape profile onto the base of the fixing hub, by using the four DTB8X20I screws
and their washers. Do not tighten the screws to allow the boom arm to slide into the
fixing hub (Fig. 5).
3 - Fit the black plastic caps at the both ends of the boom arm. Insert the boom arm into the
fixing hub and fasten the four screws tight (Fig. 6).
The gear unit is irreversible so no external locking device is necessary to keep the barrier in
securely engaged in close position.
ADJUSTING THE BALANCING SPRINGS
No balancing springs are generally provided with the barrier.
It is therefore necessary to order the balancing springs in according with the SPRINGS
CHOICE AND ADJUSTMENT TABLE. In fact, the kind of springs suitable for the balancing
depends on length and kind of the boom arm, kind and number of accessories installed.
If the boom arm tends to drop too quickly when it is disengaged from the gearmotor, adjust
the balancing springs in the following way:
1 - With the boom arm engaged to the gearmotor, press the open command of the control
board to lift the boom arm until the barrier is completely
opened.
2 - Switch OFF the motor power supply. Screw clockwise the ring
nut of the balancing-unit to increase the spring compression
degree. Use the second ring nut to block the first one (Fig. 6).
To check if the boom arm is balanced perfectly, disengage the
boom arm from the gearmotor and move the boom by hand. The boom should slightly tend
to rise.
LIMIT SWITCH SETTING
The barrier is supplied with the electrical limit switches and the mechanical stoppers
already set to allow optimum boom arm movement.
If the base plate cannot be cemented on a horizontal plane, the boom might be not perfectly
horizontal or vertical. To avoid this, it is possible to trim the trajectory of the boom by
adjusting the mechanical stoppers and the electrical limit switches (Fig. 7):
1 - Use a No.19 hexagonal wrench to loosen the retaining nuts (F) and a No.8 allen key to
loosen or tighten the countersunk screws (G). Trim the mechanical stoppers to find the
desired boom arm trajectory angle.
2 - Having done this, the electrical limit switches now have to be set. To do this you must use
a Philip's head screwdriver to loosen the fastening screws (E) of the electric limit switch
cams (Fig. 8). Once the rod is positioned at the base of the mechanical stop plate, just
move the cams as shown in Fig. 9 in order to make the micro limit switch trip.
3 - Fasten tight the fixing screws (E).
SLOWING ACTION ADJUSTMENT
Normally the barrier is supplied with a slowdown limit switch already adjusted to allow the
ideal rod motion.
In cases where it is necessary to change the slowdown parameters, just adjust the
appropriate cams (Fig. 10) by loosening the fastening screws with a Philip's head screwdriver
K (Fig. 10).
The slowdown cams are independent from the limit switch adjustment cams (by moving
them, the Open and Close cams are not modified) and they are separate from each other
(Slow opening - Slow closing).
After you have adjusted them, tighten the fastening screws and check that the barrier is
working properly by making a complete opening and closing movement.
36
G
H
mm
CLOSING
CAMS
SLOW CLOSING
CAMS
SLOW
OPENING
CAMS
3
5
F
7
4
6
E
8
OPENING CAMS
9
K
10
11