Preliminary Checks; Installation Dimensions - BFT P7 Instructions D'utilisation

2) GENERAL OUTLINE
A compact sturdy hydraulic piston, available in various versions according to
the user's requirements and type of operation. All models are supplied without
locks (reversible), and an electric lock is required to keep them blocked. To make
the manual manoeuvre easier, the lock can be released by means of a knob
which can be reached using the appropriate key.
The pushing force is adjusted with extreme precision by means of two bypass
valves which provide antisquash safety. The end-of-stroke operation is
electronically set in the control panel by means of a timer.
All models are available with slow-down function during the closing phase.
3) MAIN AUTOMATION PARTS (Fig.1)
M) 2-pole single-phase motor, protected by thermal circuit-breaker.
N) Hydraulic lobe pump.
O) Distributor with adjustment valves.
P) Cylinder with piston.
CS) Rod cover.
S) Tank.
SB) Release.
T) Head with slow-down adjustment valve.
U) Base with articulated joint.
Components supplied: Attachments for pillars and gate - personalised
release key - drive capacitor - instruction manual.
4) TECHNICAL SPECIFICATIONS
Mod. P7 - Mod. P4.5
Power supply ........................................................................................220-230V 50/60Hz(*)
Motor ...........................................................................................................................2800min
Absorbed power ............................................................................................................... 250W
Capacitor .................................................................................................................................. 8μF
Absorbed current .................................................................................................................1.1A
Max. pressure ........................................................................ 5MPa (50bar) - 4MPa (40bar)
Pump capacity .......................................................................................... 0.6l/min - 0.9l/min
Pushing force ................................................................................................... 8000N - 6500N
Towing force ..................................................................................................... 6500N - 5200N
Opening time (working stroke) ............................................................................. 45s - 30s
Closing time (working stroke) ........................... 42s+slow-down - s 28s+slow-down
Type of lock ............................................................................................................ Electric lock
Max leaf length .......................................................................................................... 7m - 4.5m
Max. leaf weight ........................................................................................... 5000N (~500kg)
Working stroke .............................................................................................................. 390mm
Slow-down stroke ........................................................................................................... 20mm
Mechanical slow-down ......................................................................................... On closing
Manoeuvres in 24 hours ..................................................................................................... 500
Impact reaction ............................................................................................ Hydraulic clutch
Manual manoeuvre .............................................................................................. Release key
Thermal protection .......................................................................................................... 160°C
Environmental conditions .......................................................................... -10°C ÷ / +60°C
Degree of protection ...........................................................................................................IP55
Controller weight ......................................................................................122.5N (~12.25kg)
Dimensions .................................................................................................................... See fig.2
Oil ...................................................................................................................... Idrolux (3 litres)
Sound pressure ......................................................................................................LpA<70dbA
(*) (Special voltage on request).
5) ACTUATOR INSTALLATION

5.1) Preliminary checks

Check that:
• The gate structure is sufficiently sturdy. Also make sure that the actuator
pushes against the leaf reinforced section.
• The leaves move manually and without effort all along their stroke.
• The door stop plates are fitted at the end of both closing and
opening strokes.
• If the gate has not been recently installed, check the wear condition of
all components. Repair or replace faulty or worn parts.
The automation reliability and safety are directly influenced by the state
of the gate structure.

5.2) Installation dimensions

The installation dimensions can be worked out from the table concerning
the respective model (fig. 3) and with reference to the diagram in fig.4.
The diagram in fig. 4 uses the following conventional references:
P Rear bracket fixed to pillar.
F
Leaf fixing front fork.
a-b Dimensions used to determine the fixing point for bracket "P".
C Value of fixing distance between centres.
D
Leaf length.
x Distance from the leaf axis to the pillar edge.
Z
Value always greater than 50 mm (b - x).
kg Max leaf weight (see Technical specifications).
a° Leaf opening angle.
5.3) How to interpret the installation measurements (Fig.3)
The "a" and "b" values can be chosen from the table (fig. 3) depending on the a°
INSTALLATION MANUAL
opening degrees which are to be obtained. The table highlights the optimum
"a" and "b" values for an opening of a°=90° at constant speed; in this condition,
the sum of the "a" and "b" values is equal to the value of the working stroke "Cu"
(fig.2).
If the "a" and "b" values used are too different, the leaf movement is not
constant, and the towing-pushing force and movement speed may vary during
manoeuvring. Maximum "a" and "b" values develop maximum piston force.
Warning! All versions are provided with a ball joint which allows the rod to
be lengthened or shortened by approximately 5 mm, but only if it was fixed
using the dimensions shown in fig. 8 before installation; after installation, this
adjustment allows the rod stroke to be corrected. Fig.9 illustrates the oscillation
that the controllers may show with respect to their horizontal axis. During
installation, scrupulously follow all the phases described below, taking care to
protect the actuator's chromium-plated rod at all times, in order to prevent it
from being damaged by impact or any welding slag.
1) Identify "a - b - a° " in the table in fig.3.
2) Fix bracket "P" (fig.10) to the pillar.
3) Fit the piston in bracket "P".
4) Slacken the slow-down screw (fig.21) using the 3mm Allen wrench provided.
5) Pull the rod out completely after activating the emergency release (fig.18).
6) Push the rod back in manually by a maximum of 10 mm and tighten the
emergency release (fig.18).
7) Fit fork "F" (fig.8) to the rod.
8) Fully close the gate leaf against the centre stop plate.
9) Keeping the piston level, mark the position for attaching fork (fig.10 ref. "F")
to the leaf.
10) Remove fork "F" from the rod and move the piston sideways.
-1 11) Fix fork (fig.10 ref. "F") to the leaf by means of screws or welding.
12) Reconnect the rod to fork "F" and supply the actuator with power to adjust
the slow-down function.
13) Activate the gate to open.
14) Completely close the slow-down screw by turning it towards the "+"sign
(fig.21) and activate the leaf closing operation. The leaf should stop before
arriving at the closing position.
15) Slacken the adjustment screw towards the "-" sign until obtaining a slow-
down speed which avoids unpleasant slamming noise. Keep in mind
that slowing down can only be obtained during closing, precisely for the
last 30mm of rod stroke, 10mm of which account for safety extrastroke;
therefore, slowing down takes place during the last 20mm of working stroke.
5.4) Suggestions for particular installations
Fig.5 A recess must be made to house the controller when the leaf is completely
open; the recess measurements are shown in fig. 5.
Fig.7 When the "b" dimension is greater than the values shown in the installation
tables, it is necessary to move the leaf hinge-pivot or make a recess in the pillar,
as in fig.6.
5.5) Anchoring of attachments to the pillar
Weld or fix the bracket base supplied to the pillar, check the "a" and "b"
measurements and then weld plate "P" to the said base. (fig.10).
• If the pillar is made of masonry, plate "P" must be welded to the metal base
"PF" and deeply anchored by means of suitable hooks "Z" which are to be
welded on the back of the said base (fig. 11a).
• If the pillar is made of stone, plate "P" is welded to the metal base "PF" and
can be fixed by means of four metal screw anchors "T" (fig.11b); if the gate is
large, it is advisable to weld plate "P" to an angle-shaped base (fig.11c).
5.6) Anchoring of attachments to the leaf
Weld or fix fork "F" to the leaf at distance between centres "C" shown in fig. 4,
making sure that the actuator is perfectly level (level "L", fig.10) with respect to
the gate movement plane.
• If the gate is made of metal, the fork can be welded (fig.12a) or fixed using
appropriate screws (fig.12c).
• If the gate is made of wood, the fork can be fixed using appropriate screws
(fig.12b).
6) GROUND LEAF STOP PLATES
For the actuator to operate correctly, stop plates "FA" must be used during
both opening and closing manoeuvres, as shown in fig.13. The leaf stop plates
must prevent the actuator rod from going to the end-of- stroke position. Fig.
14 specifies the dimensions needed to check the correct actuator installation
both for pushing and towing. The plates must be positioned in such a way as to
maintain a rod stroke margin of approximately 10mm; this is to avoid possible
operation anomalies (suchas a lock-up).
7) ELECTRIC LOCK FITTING
This is needed on all models, as no hydraulic lock is provided either for opening
or closing manoeuvres. The EBP model electric lock (fig.15) consists of a
continuous service electromagnet being anchored to the ground. This device
remains energised throughout the actuator operation time, and allows the
catch to stay lifted when it reaches the closing position, without opposing any
resistance; the catch will drop into position when the gate has completed the
closing cycle. The electric lock can also be used to keep the block of the gate in
case of actuator malfunction or current failure.
ENGLISH