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5.4.
INSTALLING THE RACK
5.4.1. STEEL RACK TO WELD (Fig. l2)
1) Place the three threaded pawls on
the rack element, positioning them
at the top of the slot. In this way, the
slot
play
will
enable
adjustments to be made.
2) Manually take the leaf into its closing
position.
3) Lay the first piece of rack level on
the pinion and weld the threaded
pawl on the gate as shown in
figure 14.
4) Move the gate manually, checking
if the rack is resting on the pinion,
and weld the second and third pawl.
5) Bring another rack element near to the previous one, using a piece of
rack (as shown in figure 15) to synchronise the teeth of the two
elements.
6) Move the gate manually and weld the three threaded pawls, thus
proceeding until the gate is fully covered.
5.4.2. STEEL RACK TO SCREW (Fig.13)
1) Manually take the leaf into its closing
position.
2) Lay the first piece of rack level on
the pinion and place the spacer
between the rack and the gate,
positioning it at the top of the slot.
3) Mark the hole position on the gate.
Drill a Ø 6,5 mm hole and apply
thread with an M8 male tap. Screw
the bolt.
4) Move the gate manually, checking
if the rack is resting on the pinion,
and repeat the operations at point
3.
5) Bring another rack element near to the previous one, using a piece of
rack (as shown in figure 15) to synchronise the teeth of the two
elements.
6) Move the gate manually and carry out the securing operations as for
the first element, thus proceeding until the gate is fully covered.
any
Notes on rack installation
•
Make sure that, during the gate travel,
all the rack elements do not exit the
pinion.
•
Do not, on any account, weld the rack
elements either to the spacers or to
each other.
•
When the rack has been installed, to
ensure it meshes correctly with the
pinion, we advise you to lower the
gearmotor position by about 1.5 mm
(Fig.16).
•
Manually check if the gate habitually
Fig. 12
reaches the mechanical stop limits and
make sure there is no friction during
gate travel.
•
Do not use grease or other lubricants
between rack and pinion.
6. START-UP
6.1.
CONTROL BOARD CONNECTION
Before attempting any work on the board (connections, programming,
maintenance), always turn off power.
Observe points 10, 11, 12, 13 and14 of the GENERAL SAFETY RULES.
Observing the instructions in Fig. 3, route the cables through the raceways
and make the necessary electric connections to the selected accessories.
Always separate power cables from control and safety cables (push-
button, receiver, photocells, etc.). To prevent any electric noise whatever,
use separate sheaths.
6.1.1. EARTHING
Connect the earth cables as shown in figure17 Ref.A.
6.1.2. CONTROL BOARD
In the "C" version gearmotors, the electronic control unit is fitted to an
Fig. 13
adjustable support with transparent lid.
The board programming push buttons have been located on the lid. This
allow the board to be programmed without removing the lid.
For correct connection of the control unit, follow indications the specific
instructions.
6.2.
POSITIONING THE LIMIT STOPS
The operator has a mechanical limit-stop with spring-lever, which
commands gate movement to stop when a profiled steel plate, secured
on the top of the rack, activates the spring until the microswitch is tripped
(fig. 21).
Procedure for correct positioning of the two limit stop plates supplied:
1) Fit and secure the 2 profiled steel plates on the 2 U-supports, using the
supplied nuts and washers, as shown in figure 18.
2) Prepare the operator for manual operating mode as described in
Fig. 14
paragraph 8.
3) Power up the system.
Fig. 15
7
ENGLISH
Fig. 16
Fig. 17
Fig. 18
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