FAAC 750, 750 Long Leaf, 450 MPS, 750 Extra Long Leaf Standard Installation Manual

The 750 Swing Gate Operator
and 450 MPS Control Panel:
Installation Manual

Contents

Important Safety Information........................................................................ 2

Technical Data ..............................................................................................4

The 750 Operator ...................................................................................4

The Control Panel .................................................................................. 4

Unpacking the Operator ................................................................................5

The 750 Swing Gate Operator ......................................................................6

General Characteristics ........................ Error! Bookmark not defined.

Operating Logic ................................... Error! Bookmark not defined.

Manual Release Lever MechanismError! Bookmark not defined.

450 MPS Logic Modes ................. Error! Bookmark not defined.

Installation Instructions.................................................................................9

Preparing the Gate..................................................................................9

Installing the 750 Operator ....................................................................9

Set the Concrete Forms................................................................... 9

Install the Power Unit ................................................................... 11

Install the Drive Unit ....................................................................12

Connect the Hydraulic Lines ........................................................12

Synchronize the Hydraulic System..............................................13

Install the Gate Leaf Shoe............................................................. 13

Install the Gate Leaf...................................................................... 15

Installing the Control Panel .................................................................15

Connect the Main Power Supply .................................................. 15

Connect One Activating Device ..................................................17

Connect the Operator(s) to the Control Panel.............................. 18

Adjust the Pressures for the Operator ...........................................18

Check the Motor’s Direction of Rotation ....................................20

Connect Other Devices ................................................................. 20

Set Other Operating Controls .......................................................23

Bleeding the Hydraulic System........................................................... 24

Adjusting the Bypass Valves ............................................................... 24

Installing an Extension Arm........................................................................26

Maintenance ................................................................................................27

The 750 Operator .................................................................................27

The Control Panel ................................................................................ 27

Troubleshooting .......................................................................................... 27

Exploded View, 750 CBAC........................................................................31

Exploded View, 750 Ram Parts .................................................................. 32

750 Flex-Hose Adapter Kit .........................................................................33

FAAC International, Inc.
303 Lexington Avenue
Cheyenne, WY 82007
www.faacusa.com

Important Safety Information

Both the installer and the owner and/or operator of
this system need to read and understand this
installation manual and the safety instructions
supplied with other components of the gate system.
This information should be retained by the owner
and/or operator of the gate.

WARNING! To reduce the risk of injury or death

1. READ AND FOLLOW ALL
INSTRUCTIONS.

2. Never let children operate or play with
gate controls. Keep the remote control
away from children.

3. Always keep people and objects away
from the gate. NO ONE SHOULD
CROSS THE PATH OF THE
MOVING GATE.

4. Test the gate operator monthly. The
gate MUST reverse on contact with a
rigid object or stop when an object
activates the non-contact sensors. After
adjusting the force or the limit of travel,
retest the gate operator. Failure to
adjust and retest the gate operator
properly can increase the risk of injury
or death.

5. Use the emergency release only when
the gate is not moving.

6. KEEP GATES PROPERLY
MAINTAINED. Read the owner’s
manual. Have a qualified service person
make repairs to gate hardware.

7. The entrance is for vehicles only.
Pedestrians must use separate entrance.

8. SAVE THESE INSTRUCTIONS.

There are three kinds of safety issues involved with an
automatic gate operator: issues arising from the design
of the gate, from the installation of the gate and the
operator, and from the use of the gate operator. The
following information is designed to help you be sure
your gate and its operator are well-designed, installed
correctly, and used safely.

Gate Design

1. A gate is a potential traffic hazard, so it is im­portant that you locate the gate far enough away
from the road to eliminate the potential of traffic
getting backed up. This distance is affected by the
size of the gate, how often it is used, and how fast
the gate operates.

2. The operator you choose to install on your gate
must be designed for the type and size of your gate
and for the frequency with which you use the
operator.

3. Your gate must be properly installed and must work
freely in both directions before the automatic
operator is installed.

4. An automatic operator should be installed on the
inside of the property/fence line. Do not install the
operator on the public side of the property/fence
line.

5. Pedestrians should not use a vehicular gate system.
Prevent such inappropriate use by installing
separate gates for pedestrians.

6. Exposed, reachable pinch points on a gate are
potentially hazardous and must be eliminated or
guarded.

7. Outward swinging gates with automatic operators
should not open into a public area.

8. The operating controls for an automatic gate must
be secured to prevent the unauthorized use of those
controls.

9. The controls for an automatic gate should be
located far enough from the gate so that a user
cannot accidentally touch the gate when operating
the controls.

10. An automatic gate operator should not be installed
on a gate if people can reach or extend their arms or
legs through the gate. Such gates should be guarded
or screened to prevent such access.

Installation

1. If you have any question about the safety of the
gate operating system, do not install this operator.
Consult the operator manufacturer.

2. The condition of the gate structure itself directly
affects the reliability and safety of the gate
operator.

3. Only qualified personnel should install this
equipment. Failure to meet this requirement could

2

cause severe injury and/or death, for which the
manufacturer cannot be held responsible.

4. The installer must provide a main power switch that
meets all applicable safety regulations.

5. Clearly indicate on the gate with a minimum of 2
warning signs (visible from either side of the gate)
that indicate the following:

• The gate is automatic and could move at

any time, posing a serious risk of
entrapment.

• Children should not be allowed to operate

the gate or play in the gate area.

• The gate should be operated only when it

is visible to the operator and the when the
area is free of people and obstructions.

6. It is extremely unsafe to compensate for a damaged
gate by overtightening a clutch or increasing
hydraulic pressure.

7. Devices such as reversing edges and photocells
must be installed to provide better protection for
personal property and pedestrians. Install reversing
devices that are appropriate to the gate design and
gate application.

8. Before applying electrical power, be sure that the
voltage requirements of the equipment correspond
to your supply voltage. Refer to the label on your
operator system.

Use

1. Use this equipment only in the capacity for which it
was designed. Any use other than that stated should
be considered improper and therefore dangerous.

2. When using any electrical equipment, observe
some fundamental rules:

• Do not touch the equipment with damp or

humid hands or feet.

• Do not install or operate the equipment

with bare feet.

• Do not allow small children or incapable

persons to use the equipment.

3. If a gate system component malfunctions, turn off
the main power before making any attempt to repair
it.

4. Do not attempt to impede the movement of the
gate. You may injure yourself as a result.

5. This equipment may reach high temperatures
during operation; therefore, use caution when
touching the external housing of the operator.

6. Learn to use the manual release mechanism
according to the procedures found in this in­stallation manual.

7. Before carrying out any cleaning or maintenance
operations, disconnect the equipment from the
electrical supply.

8. To guarantee the efficiency of this equipment, the
manufacturer recommends that qualified personnel
periodically check and maintain the equipment.

U.L. Class and FAAC Operator

Model

Class I: Residential Vehicular Gate Operator

402 750

422 760

412 400

620 640

Class II: Commercial/General Access Vehicular Gate Operator

400 640

620

Class III: Industrial/Limited Access Vehicular Gate Operator

400 640

620

Class IV: Restricted Access Vehicular Gate Operator

620 640 Continuous duty • Prison rated security

Duty Cycle Typical Use

Limited duty • Home use

• Small apartment building, for example, up to 4 units

in a building, with limited public access

Continuous duty • Apartment buildings

• Very public access

Continuous duty • No public access

3

Technical Data

The 750 Operator

750 Standard 750 Long Leaf 750 Extra Long Leaf

Ambient temperature, deg F (deg C) -13 to 158 (-25 to 70)

Maximum duty cycle 30 Cycles/ Hour

Thermal cut out, deg F (deg C) 212 (100)

Power voltage required, VAC* 115 ±10% or 230, +6 or -10%, 60 Hz 230, +6 or -10%, 60 Hz

Absorbed power, W 220

Motor speed, rpm 1400 960

Type of oil Lubrication Engineers – MONOLEC 6105

Hydraulic Power Unit:

Height × width × depth, in. (cm) 133/4 × 83/16 × 51/8 (35 × 20.8 × 13)

Weight, lb (kg) 20 (9)

Oil quantity, qt (l) 1 (0.9)

Hydraulic locking: CBC: Closed

CBAC: Opened
and closed

Gate weight, lb (kg) 1760 (800)

Maximum gate length, ft (m) 7 (2.1) 10 (3) 13 (4)

Hydraulic Drive Unit:

Height (not including shaft) ×
length × width, in. (cm)

Weight

100-deg swing, lb (kg)

180-deg swing, lb (kg)

Oil quantity, qt (l) 0.9 (1)

Maximum angle of rotation

100-deg swing, deg

180-deg swing, deg

90-deg opening time, sec 12 17

Nominal torque, ft-lb (Nm) 338 (460)

* Your standard 220 VAC power source meets the specification for 230 VAC, +6 or -10%.

7

4

The Control Panel

The 750 Operator must be installed with a 450 MPS
control panel to be a U.L. recognized installation. The
450 MPS can be used to control a single 400 operator or
a dual (biparting) system. Both the control panel and
the operator must use the same power supply voltage.

Not available Not available

/8 × 153/4 × 77/8 (12.4 × 40 × 20)

18 (8)

20 (9)

118

200

The 450 MPS

To determine the voltage requirement of your 450 MPS
control panel, refer to the label on the transformer of the
control panel:

Label reads: 450MPSUS = 220 VAC
450MPSUS115 = 115 VAC
Operating logics available: E, EP, A, S, B, and C

Unpacking the Operator

When you receive your 750 Operator, complete the
following steps.

Inspect the shipping box for physical damage such as
leaking oil or a torn carton. Then inspect the operator
after you remove it from the box. Notify the carrier
immediately if you note any damage because the carrier
must witness the damage before you can file a claim.

As you unpack the boxes, insure that all the parts listed
below are included.

Power Unit (see Figure 1):

1 vinyl box with key (the power unit is shipped

separately from the box)

(a)

Drive Unit (see Figure 1):

1 Hydraulic drive attached to its base plate with 4

leveling bolts installed and with the sleeve fitted
over the splined shaft

2 "Box halves" (right-angled and lipped pieces of

galvanized steel that together form the sides of
the box around the drive unit)

1 Top cover protected by peel-off plastic

1 Package containing 2 mounting C brackets, 6

screws to hold cover on the drive unit, 4 ring
fittings for hydraulic lines, 1 plastic half-sleeve
to fit around drive shaft and match top cover, one

1

0.3-qt (

1 Plastic collar around splined shaft

/4 liter) container of hydraulic fluid

1 Oil plug

(b)

2 Vent screw

3 Manual Release lever

4 By-pass valve screws

5 Hydraulic 90-deg elbow
couplings

6 Bleed screws

7 Leveling bolts

Figure 1. Parts of the 750 (a) the power unit and (b) the drive unit (sometimes referred

to as the ram unit)

5

The 750 Operator

General Characteristics

The FAAC 750 Operator is an automatic gate operator
for a swinging gate leaf. It can accommodate a gate leaf
of up to 1760 lb (800 kg) and up to 13 ft (4 m) in
length.

The 750 Operator is a two piece unit consisting of a
hydraulic power (or pump) unit and a hydraulic ram (or
drive) unit which are connected by the means of two
hydraulic hoses.

The 400 Operator can be used to swing the gate leaf
inward or outward. Some versions provide hydraulic
locking in at least one position, either opened or closed,
depending on how it was ordered.

The hydraulic lock is a service device rather than a
security device. Additional, external locks are rec­ommended under the following conditions:

• You are installing the Model 750 SB or SBS.

• The length of the gate leaf is 7 ft or more.

• The installation requires tight security.

• The site is subject to vandalism.

• The site is subject to strong or very gusty

wind.

• You are installing a solid face gate.

For gates with two leaves, two operators are installed,
one on each leaf, and both are wired to one control
panel. In such two-operator gate installations, one leaf
can be programmed to open/ close slightly later than the
other leaf to accommodate overlapping gate designs.

For its protection, the single-phase, bidirectional motor
shuts off automatically if its operating temperature
reaches 212 deg F (100 deg C). Also for the protection
and proper operation of the 750 Operator, each gate leaf
on which it is installed must have a fixed positive stop
in both the opened and closed positions.

The 750 Operator also includes a key-operated Manual
Release mechanism and two bypass valves that pre­cisely control the force applied to the gate leaf through
the 750 Operator.

The Manual Release mechanism is a lever that
disengages (or engages) the hydraulic system of the 750
Operator. When the hydraulic system is disengaged,
you can open and close the gate leaf by hand. Such
manual operation of the gate is necessary during
installation and useful during power failures.

The two bypass valves are located on the front of the
pump unit. You need to adjust the bypass valves to meet
the safety standards of FAAC International, Inc. The
standards state that the gate leaf should stop if it
encounters a force of more than 33 lb (15 kg).

Additional reversing devices (such as inductive loops
and photocells) should be installed to provide more
complete protection for people and property.

The electronic control panel is a microprocessor-based
controller that accepts a wide range of product
accessories and reversing devices, thus allowing for
flexible gate system design.

450 MPS Logic Modes

Note: The 450 provides inputs for opening
reversing devices and closing reversing
devices. FAAC strongly recommends the use
of reversing devices, such as photocells or
other non-contact sensors.

The following logics are available on the 450 MPS:

• A (automatic): The gate opens on command

and automatically closes after a pause phase. A
second command on opening is ignored; a
second command during the pause phase
causes the gate to close immediately; a second
command during closing reopens the gate.

• S (security): The security mode is like A logic

except that a second command during opening
immediately closes the gate.

• E (semi-automatic): This mode requires a

command to open and a command to close. A
second command during opening or closing
causes the gate leaves to stop. A third
command then closes the gate.

• EP (semi-automatic, step by step): This

mode requires a command to open and a
command to close. A second command during
opening or closing causes the gate leaves to
stop. A third command then reverses the
previous motion of the gate.

• B (manned, pulsed): This mode is designed

for guard station use and requires a three­button switch (pulsed) to open, close, and stop
the gate.

• C (manned and constant): This mode

requires constant pressure switches. One to
open and one to close. No pressure on a switch
stops the gate.

6

Gate

Status

Closed

Opening

Opened

Closing

Stopped

Gate

Status

Closed

Opening

Opened

Closing

Stopped

Gate

Status

Closed

Opening
Opened

Closing
Stopped

A (Automatic) Logic

Open A Open B Stop Opening

Reversing

Device(s)

Opens both leaves
and closes them
after pause time

No effect No effect Stops Stops; gate closes

Closes both leaves
immediately

Opens both leaves
immediately
Closes the leaves Closes the leaf No effect

Opens single leaf
connected to
Motor 1 and
closes it after
pause time

Closes leaf
immediately

Opens leaf
immediately

No effect No effect No effect Off

when reversing
device no longer
triggered

Stops No effect Gate remains open

Stops No effect Depends on DIP

No effect No effect (opening
(opening is
inhibited)

Closing

Reversing

Device(s)

No effect On

until reversing
devices no longer
triggered

switch 4

is inhibited)

Warning

On

Flashes

On

Light

S (Security) Logic

Open A Open B Stop Opening

Opens both leaves
and closes them
after pause time

Closes both leaves
immediately

Closes both leaves
immediately

Opens both leaves
immediately
Closes the leaves Closes the leaf No effect

Opens single leaf
connected to
Motor 1 and
closes it after
pause time
Closes the leaf
immediately

Closes leaf
immediately

Opens leaf
immediately

No effect No effect No effect Off

Stops Stops; gate closes

when reversing

device no longer

triggered
Stops No effect Gate remains open

Stops No effect Depends on DIP

No effect No effect (opening
(opening is
inhibited)

Reversing

Device(s)

Closing

Reversing

Device(s)

No effect On

until reversing
devices no longer
triggered

switch 4

is inhibited)

Warning

On

Flashes

On

Light

B (Manned, Pulsed) Logic

Open A Open B Stop Opening

Reversing

Device(s)

Opens 1 or both
leaves
No effect No effect Stops No effect Stops On
No effect Closes 1 or both

No effect No effect Stops Stops No effect Flashes
Opens 1 or both
leaves

No effect No effect No effect No effect Off

No effect No effect No effect On

leaves

Closes 1 or both
leaves

No effect No effect No effect On

Closing

Reversing

Device(s)

Warning

Light

7

E (Semi-automatic) Logic

Gate

Status

Closed

Opening

Opened

Closings

Stopped

Open A Open B Stop Opening

Reversing

Device(s)

Opens both leaves Opens single leaf

connected to
Motor 1

Stops Stops Stops Stops; gate closes

Closes both leaves
immediately

Stops Stops Stops No effect (opening

Closes the leaves Closes the leaf No effect

Closes leaf
immediately

No effect No effect No effect Off

when reversing
device no longer
triggered

Stops No effect No effect

is inhibited)

No effect No effect
(opening is
inhibited)

EP (Semi-automatic, Step by Step) Logic

Gate

Status

Closed

Opening

Opened

Closing

Stopped

Gate Status Open A Open B Stop Opening

Closed

Opening
Opened

Closing
Stopped

Open A Open B Stop Opening

Reversing

Device(s)

Opens both leaves Opens single leaf

connected to
Motor 1

Stops Stops Stops Stops; gate closes

Closes both leaves
immediately

Stops Stops Stops No effect (opening

Gate leaves
reverse direction

Closes leaf
immediately

Gate leaf reverses
direction

No effect
(opening is
inhibited)

Stops No effect No effect

No effect
(opening is
inhibited)

No effect (opening

is inhibited)

when reversing

device no longer

triggered

is inhibited)

No effect (opening

is inhibited)

C (Manned and Constant) Logic

Reversing

Device(s)

Opens 1 or both
leaves

No effect No effect Stops No effect Stops On

No effect Closes 1 or both

No effect No effect Stops Stops No effect Flashes

Opens 1 or both
leaves

No effect No effect No effect No effect Off

No effect No effect No effect On

leaves

Closes 1 or both
leaves

No effect No effect No effect On

8

Closing

Reversing

Device(s)

No effect On

On
(opening is
inhibited)

Depends on DIP
switch 4

(opening is
inhibited)

Closing

Reversing

Device(s)

No effect
(opening is
inhibited)

No effect On

(opening is
inhibited)

Depends on DIP
switch 4

No effect
(opening is
inhibited)

Closing

Reversing

Device(s)

Flashes

On

Off

On

Flashes

On

Warning

Light

Warning

Light

Warning

Light

Installation Instructions

Note: The following installation instructions
assume you are fully capable of installing a gate
operator. This manual does not instruct you in
designing a gate, installing a gate, or basic
electrical wiring. The installation tasks discussed in
this manual are tasks particular to the 750 Operator.

Preparing the Gate

Before you install the 750 Operator, you must insure
that the gate leaf meets the following criteria.

1. The gate leaf must not exceed the weight and
length constraints for 750 Operator that you
have.

2. The distance between the gate post and the
center of the gate hinge must be at least 2
(6 cm).

3. Make sure the gate leaf has positive stops in both

the opening and closing directions (see Figure 3).

Note: If you are installing the 750 Operator
with an extension arm, some of the constraints
about the gate leaf may not apply to you. See
the section "Installing an Extension Arm" for
more information on page 26.

3

/8 in.

Installing the 750 Operator

Installing the 750 Operator consists of the following
steps:

Setting the concrete forms
Installing the power unit
Installing the drive unit
Connecting the hydraulic lines
Synchronizing the hydraulic system
Installing the gate leaf shoe
Installing the gate leaf
Installing the control panel
Adjusting the hydraulic pressures for the operator
Checking the motor rotation
Bleeding the hydraulic system
Adjusting the bypass valves

Set the Concrete Forms

You need to lay out the concrete forms according to the
dimensions shown in Figures 4 and 5. (Your soil
conditions may also determine the size of the cement
footing.)
Note: If the vertical distance between the finished grade
and the bottom of the gate leaf exceeds 1 1/4 in. (3.3
cm) as shown in Figure 5, you can install a shear-pin
assembly as shown in Figure 9 and as discussed in
“Installing the Gate Leaf Shoe.”

Axis of rotation for gate
leaf falls through the
center of the hinge

One hinge holding
the gate leaf

Gate
post

90-deg corner
on gate leaf

Minimum of 2 1/4 in. (5.7 cm)

Minimum of 2 3/8 in. (6 cm)

between axis of rotation and

between axis of rotation and

edge of gate post

edge of gate post

Figure 2. Constraints on the geometry of the gate leaf

Gate leaf

Accurately positioning the foundation plate beneath the
gate hinge is critical especially if it supports the drive
unit, which supports the gate leaf.

Note: The foundation plate may be supplied by
the installer. If so, it must meet the
specifications shown in Figure 4.

Cement
footing

Axis of rotation
of gate leaf

Gate
post

Note: Insure that the cavity where the drive
unit is located is well drained by means of
pipes, gravel drainage, or both, whatever is
appropriate for your soil conditions.

One of 4 welded anchors

One of 4 bolts that
anchor plat e into

that extend at least 5 in.

cement footing

(12.7 cm) into the

Centerline of
gate leaf

Minimum of 2 3/8 in.
(6 cm) and maximum of
5 1/4 in. (13.3 cm)

Minimum of
2

1/4 in. (5.7 cm),

max i mum of

1/4 in. (13.3 cm)

5

Figure 4. Recommended dimensions for the concrete footing and

Minimum depth
of concrete:
18 in. (45.7 cm)

Gate
post

Foundation
plate

foundation plate, top view

6 1/2 in.
(16.5 cm)

Concrete
slab

5 1/4 in
(13.2 cm)

Steel foundation plate:

Foundation plate,
10 x 18 in.

10 x 18 x 3/16 in.

(25.4 x 45.7 cm)

(25.4 x 45.7 x 0.48 cm)

Finished grade
beneath gate
leaf

Depth should be a
minimum of 24 in.
(61 cm)

Gate leaf

Incorporate proper drainage

Figure 5. Recommended dimensions for the concrete footing and

foundation plate, side view

After the concrete is poured in the form and before it
has a chance to set, insert the foundation plate into the
cement and position it so that it is flush with the top of
the concrete and is level.

Allow the concrete to set a minimum of two full days
before you install the drive unit on top of it.

Install the Power Unit

Figure 6 shows important dimensions and parts of the
vinyl power unit box.

There are two constraints to installing the power unit
box for the 750 Operator.

1. We recommend that you install the power
unit box so that the hydraulic lines between it
and the drive unit are no longer than 20 ft (6
m).

2. The power unit itself must be installed so that
the vent screw in on the top of the unit as
shown in Figure 6.

The power unit box that ships with your operator hinges
on the left, but you can reverse the opening direction of
the door if necessary for your installation. To reverse
the opening direction, open the cover, and then lift it off
the box. The vinyl hinges can now be placed in the
hinge receptacles on the right-hand side. Secure the
hinges with the screws provided.

You may surface mount the power unit box to a vertical
surface or you may recess it.

To mount the power unit box use the 3/16-in. holes
provided (relocating the holes in the box will
compromise its integrity).

If you recess the box, keep in mind that hydraulic hoses
and electrical wiring need to enter the bottom of the
box.

Also, recesseing must not interfere with the hinge
assembly of the power unit box. You need to keep in
mind the following dimensions.

Height: 14 1/4 in. (36.2 cm)
Width: 10 in. (25.5 cm)
Depth: maximum of 2

1

/2 in. (6.5 cm)

At this time, you also need to remove the vent screw
located on the power unit. The vent screw is in the
middle of the top, left side of the power unit as shown
in Figure 6.

Caution: Failure to remove the vent screw in
the power unit may result in erratic operation
of the 750 Operator.

Figure 6. Parts of the power unit in the vinyl box

11

1 Lock for triangular key

2 Clip to hold instruction

manual

3 1 1/16 in. (3 cm) holes

for hydraulic lines

4 1 1/16. in (3 cm)

knock-outs

6

5 Three knock-outs,

each measuring
3/4 in. (2 cm)

6 Electrical junction box

Install the Drive Unit

To install the drive unit, first make sure the four
leveling bolts on the base of the unit do not protrude
from the bottom of the unit. Then place the unit on the
foundation plate (see Figure 7).

Position the drive unit according to the following:

1. The side of the drive unit with the splined
shaft should be the side nearest the gate
post.

2. The longitudinal axis of the drive unit is
perpendicular to (at right angles to) the fully
closed gate leaf.

3. The center of the splined shaft is vertically
aligned with the center of the gate hinge axis
(use a plumb line).

Caution: NEVER weld the base plate of the
drive unit to the foundation plate. Weld only
the mounting C brackets to the foundation
plate.

When the position of the drive unit meets these
conditions, weld the C-shaped mounting brackets to
the foundation plate to hold the drive unit in position
(see Figure 7).

Splined shaft: This side
of the drive unit should be
nearest the gate post.

Drive unit

Mounting
C bracket

Foundation
plate

Longitudinal axis
of the drive unit

Figure 7. Welding the mounting C bracket to the foundation plate

Next you need to prepare the two L-shaped "box
halves" for installation. Note that the lip on each piece
should be on top so as to support the top cover. Make
the necessary holes for the two hydraulic lines that run
from the drive unit to the power unit.

Once you have made your access holes, you can weld
the box halves to the foundation plate and to one
another so as to enclose the drive unit on four sides. Be
sure to protect the drive unit during welding.

Connect the Hydraulic Lines

Caution: It is important that the hydraulic
lines be kept clean of any debris.

The drive unit and power unit are connected by two
hydraulic lines, each with an outside diameter of 5/16
in. (0.8 cm), an inside diameter of 5/32 in. (0.4 cm),
and a 2,500 psi (170 bar) rating.

Caution: After removing the nylon piping, do
not rotate the splined shaft while you are
connecting the hydraulic lines to avoid
squirting hydraulic fluid.

Remove the nylon piping connecting the two hydraulic
pipe fittings on the drive unit. Clean up any spilled
hydraulic fluid.

Be sure the hydraulic lines are free of any debris by
flushing them with a jet of compressed air. Then attach
one line to each fitting on the drive unit.

Next you attach the other end of the hydraulic lines to
the pipe fittings on the power unit (see Figure 8;
additional information can be found in the technical
drawing on page 29). Attaching the correct line to the
correct fitting is important. Make sure that the hose on
the end of the drive unit that is on the closing side of the
gate/fence line attaches to the hydraulic pipe fitting in
the power unit that is nearest the green bypass valve

screw. This connection insures that the green valve
controls opening pressure.

Caution: Do not remove and do not tighten the
elbow-shaped pipe fittings on the power unit.
They have been locked into position with a
thread locker to help seal the hydraulic system.

Synchronize the
Hydraulic System

Next you need to disengage the hydraulic system in
order to synchronize it.

Inside the power unit is the Manual Release lever that
disengages the hydraulic system (see Figure 1). Make

Figure 8. Connect the hydraulic line to the
power unit. See the technical drawing on the
next to last page for more information.

sure the Manual Release lever is turned toward you and
down to disengage the hydraulic system.

Now you can synchronize (set) the hydraulic system to
the closed position by turning the splined shaft in the
closing direction. Turn the shaft as far as it will go. To
prevent the piston in the drive unit from bottoming in its
cylinder, next turn the splined shaft about 5 deg in the
opening direction.

The position of the shaft now corresponds to the fully
closed position of the gate leaf. The hydraulic system is
now synchronized (set).

Caution: The splined shaft must not be moved
from its closed position until the gate leaf shoe
that holds the gate leaf has been attached.

Install the Gate Leaf Shoe

If the vertical distance between the finished grade under
the gate and the bottom of the gate leaf is more than
1 1/4 in. (see Figure 5), you need to do one of the
following:

• Install a length of appropriately sized pipe

between the sleeve that fits around the splined
shaft of the operator and the gate leaf shoe.

• Construct a shear-pin assembly to

accommodate the extra vertical distance. The
assembly is welded to the bottom of the gate
leaf shoe on one end and to the sleeve for the
splined shaft of the pinion on the other end
(see Figures 9 and 10). Such an assembly
requires a bottom hinge and also protects the
pinion and splined shaft in the event something
hits the gate with great force.

Axis of rotation of the gate leaf

Weld this end of this pipe to
the bottom of the gate leaf
shoe, being certain you have
aligned the axes of rotation.
This 2 in. pipe (schedule 160)
has an inside diameter of 1.689 in.

Bolt or shear pin goes
through these holes and
the holes on the opposite
sides of the pipes.

Weld this end of this pipe to the
sleeve for the splined shaft (do not
weld anything to the splined shaft
itself). This 1 1/4 in. pipe (schedule

160) has an outside diameter of

1.660 in.

Figure 9. A sample shear-pin assembly

Installing the gate leaf shoe involves making the gate
leaf shoe, positioning it, and welding it to the splined
shaft sleeve. If you are retrofitting the 750 Operator to
an existing gate, these tasks require you to remove the
gate leaf from its hinges. If you are using a shear-pin
assembly, refer to Figures 9 and 10 to determine what
you should weld together.

The gate leaf shoe is designed to carry the weight of the
gate leaf and transfer the weight to the splined shaft.
The shoe surrounds the 90-deg gate-post corner of the
gate leaf to carry the gate and to act as a lower hinge.
The shoe is made of a U-shaped section and a vertical
section (see Figure 10). Later you will weld the bottom
of the U-shaped section to the sleeve for the splined
shaft (or to the shear-pin assembly, which is welded to
the sleeve).

Since the gate leaf shoe holds the gate leaf, both
sections must be made of steel at least 1/4 in. (0.6 cm)

13

thick. The U-shaped section of the shoe must be a
minimum of 5 3/4 in. (2.1 cm) long and must be as wide
as the gate leaf is thick and must fit as tightly as
possible to minimize leaf movement within the shoe
(see Figure 11).

Construct the U-shaped section of the shoe and verify
that it fits around the gate leaf. Position the U-shaped
section over the splined shaft so that the leaf's axis of
rotation will fall within the minimum dimensions shown
in Figure 11.

On the U-shaped section of the shoe, mark the position
for the leaf's axis of rotation. Next, drill a pilot hole in

U-shaped
section of

Gate leaf

gate leaf
shoe

the U-shaped section to mark the axis of rotation point
and mark the position for the placement of the vertical
section of the shoe.

Next you need to position the sleeve for the splined
shaft of the pinion (or the shear-pin assembly) on the
bottom side of the U-shaped section of the shoe as
shown in Figure 10. On the bottom of the U-shaped
shoe section, center the sleeve around the pilot hole that
marks the axis or rotation. Accurately centering the
pilot hole is important.

Caution: NEVER weld the splined shaft to
anything.

Gate leaf

Axis of rotation
outside body of
gate leaf

Vertical

Axis of rotation
within body of
gate leaf

section

Splined shaft
sleeve

Splined shaft

Note: The gate's axis of rotation may fall within or outside the body of the gate leaf.

Figure 10. Parts of the gate leaf shoe

Absolute minimum of 5 in. (12.7 cm)
between vertical section and end of
U-shaped section

Vertical section can be
located on either side
of axis of rotation

Axis of rotation
for gate leaf

Minimum of
3/4 in. (1.9 cm)

Centerline of
gate leaf

Bottom of
U-shaped
section

Vertical
section

Thickness
of the
gate leaf

Figure 11. Top view of the U-shaped section of the gate leaf shoe

Recommended minimum of 10 in. (25 cm)

14

Spot-weld the sleeve into place on the bottom of the
shoe's U-shaped section. If you are using the shear-pin
assembly, spot weld the sleeve to the bottom of the
shear-pin assembly, and spot weld the top of the shear­pin assembly to the bottom of the shoe’s U-shaped
section.

Next you must test the temporarily welded position of
the splined shaft's sleeve. Fit the shaft sleeve over the
splined shaft with the U-shaped section aligned in the
gate leaf's fully closed position. Verify with a plumb
line that the axis of rotation falls through the pilot hole
to the center of the splined shaft.

If the axis of rotation alignments are correct, then
permanently weld the sleeve for the splined shaft to the
bottom of the U-shaped section of the shoe.

Also, you now need to weld the pilot hole closed, and
you need to weld the vertical section of the shoe to the
U-shaped section of the shoe.

Lubricate the splined shaft with grease and place the
finished gate leaf shoe over the shaft in the closed
position.

Install the Gate Leaf

If you are not using the telescoping shear-pin assembly,
install the gate leaf by placing its 90-deg corner into the
gate leaf shoe and then installing the top gate hinge.

Installing the top gate hinge may require the gate leaf to
be at a particular height. To raise (or lower) the gate leaf
to the proper height, equally adjust the four leveling
bolts on the base of the drive unit. The bolts raise (or
lower) the splined shaft and thus the gate leaf shoe and
gate leaf.

To test the installation of the gate leaf, first make sure
that the hydraulic system has been disengaged (the
Manual Release lever should point down).

Next, very slowly open and close the gate leaf a few
times to see if it moves smoothly and evenly through its
entire path. As necessary, adjust the leveling bolts on
the base of the drive unit to correct any problems with
the gate’s travel.

Installing the Control Panel

Locate the control panel in the most convenient position
possible, considering the movement of the gate. For
example, a good position for the control panel box in on

the inner face of the post or pillar. Figure 12 shows the
typical layout for a two-leaf gate with the 750 Operator.

If you are embedding the control panel box into a wall
or post, you must be sure to allow a clearance between
the surface of the wall or post and the rim under the lid
of the control panel box.

Installing the control panel consists of six general steps:

• Connecting the main power to the control

panel

• Connecting the activating device

• Connecting the operator to the control

panel

• Checking the direction of the motor's

rotation

• Connecting other devices (activating and

reversing) to the control panel

• Setting DIP switches and potentiometers

for normal operation

The installer is responsible for grounding the gate and
operator systems, for providing the main power breaker
switch, and for making sure that the entire gate system
meets all applicable electrical codes.
The installer is responsible for grounding the operator
systems, for providing the main power breaker switch,
and for making sure that the entire gate system meets all
applicable electrical codes.

Follow the instructions below when installing the
control panel for the 750 Operator.

Connect the Main
Power Supply

WARNING! Turn the main power off before
you make any electrical connections or set any
switches inside the control panel box.

Wire the main power supply to control panel terminals
in block J1 (see Figures 13 and 14). The installer is
responsible for insuring that a separate, grounded circuit
protected by a circuit breaker is between the control
panel and the main power supply. All wiring should
conform to applicable electrical codes, and all wiring
and fittings should be weatherproof and/or suitable for
burial.

D

C

E

A

F

B

Locate switches at least
10 ft. from the gate

Gate System Parts

220 VAC 115 VAC

1 750 hydraulic drive unit A 4 X 14 AWG 4 X 14 AWG
2 750 hydraulic power unit B 4 X 14 AWG 4 X 14 AWG
3 750 Control Panel box C 3 X 18 AWG 3 X 18 AWG
4 Main power switch D 5 X 18 AWG 5 X 18 AWG
5 Circuit breaker E 5 X 18 AWG 5 X 18 AWG
6 Main junction box F 4 X 14 AWG up 3 X 14 AWG up
7 Switch for 750 Operator to 414 ft (126 m) to 130 ft (40 m)
8 Switch for 750 Operator or 3 X 10 AWG up
9 Radio receiver to 340 ft (104 m)

Wire Gauges for Given

Power Source Voltage

Figure 12. Typical layout of gate system with 750 Operators

1 J1 terminal block for main power supply 8 Leaf delay potentiometer

2 J2 terminal block for connecting the operator(s) 9 DIP switch assembly

3 J3 terminal block for low-voltage accessories

4 J4 quick connector port 10 F1, Main power 5 A 10 A

5 Pressure adjustment potentiometer 11 F2, Accessories 800 mA 800 mA

6 Pause time potentiometer 12 F3, Electric lock 1.6 A 1.6 A

7 Potentiometer for adjusting open/close time 13 F4, Microprocessor 250 mA 250 mA

Figure 13. The 450 MPS control panel

Connect the ground to the grounding terminal in block
J1 and connect the power wires to the terminals labeled
N (neutral) and L (phase).

Caution: The operators are grounded only by
the grounded circuit the installer provides.

Connect One
Activating Device

WARNING! Turn the main power off before
you make any electrical connections or set any
switches inside the control panel enclosure.

Fuses 220 VAC 115 VAC

For the purposes of installation you need to connect at
least one normally open (N.O.) activating device for
your operator(s).

• If you have a two-leaf gate design,

connect the activating device to terminals
18 and 19.

• If you have a one-leaf gate design, connect

the activating device to terminals 16 and

17.

You use this activating device in the rest of the
installation process. You can connect additional
activating devices later.

17

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

NOTE: In order to comply with UL 325, two sets of
FAAC photocells must be installed. One set should be 6
inches outside the closed gate(s) and act as a closing
reversing device. Another set should be 6 inches beyond
the swing of the gate and act as an opening reversing
device. The installer is responsible for determining the
appropriate mounting height.

Figure 14. The terminal strip wiring of the 450 MPS

Connect the Operator(s) to
the Control Panel

WARNING! Turn the main power off before
you make any electrical connections or set any
switches inside the control panel box.

Using a Junction Box

Connecting your operator(s) to the control panel may
require the use of one or more junction boxes. Whether
you need 0, 1, or 2 U.L. Listed junction boxes depends
on your gate design (refer to Figure 15 below).

Note: The 750 Operators shipped for U.L.
applications come with a U.L. listed junction
box installed in the power unit box.

If any operator is more than 2 ft away from the U.L.
Listed control panel enclosure, the connection must be
made inside a junction box. Use a U. L. Listed cord grip
where the operator cord enters the junction box; use
conduit between the junction box and the enclosure.

Connecting the Operator(s)

Caution: Do not use the terminal connections
for Motor 2 (terminals 6, 7, and 8) if yours is a
one-leaf gate design.

Note: If you have a one-leaf gate design, the
operator must be connected to Motor 1
(terminals 3, 4, and 5).

If your gate system has one operator, connect the
capacitor and the brown and black (or red and black)
wires from your operator to the terminals 3 and 5 in
block J2 for Motor 1. Connect the blue (or white) wire
from the operator to terminal 4 for Motor 1.

Note: If you want to delay the closing of one
gate leaf in a two-leaf gate design, be sure to
connect its operator to Motor 1 (terminals 3, 4,
and 5).

If your gate system has two operators, connect the
second operator to terminals 6, 7, and 8 in block J2 for
Motor 2. Connect the capacitor and the brown and black
(or red and black) wires from the operator to terminals 6
and 8, and connect the blue (or white) wire from the
operator to terminal 7 for Motor 2.

Adjust the Pressures
for the Operator

WARNING! You must decrease the pressures
of the gate’s opening and closing momentum
before you operate the gate electrically. The
pressure valves are not preset at the factory and
may operate the gate leaf with enough force to
endanger people and seriously damage the gate
leaf itself.

18

(a)

U.L.Listed
cord grip

To the U. L. Listed

gate operator

To the U.L. Listed

control panel

Junction box

Legend

Red

Black

White

Yellow/
Green

Conduit to
U.L. Listed
control panel
enclosure
according to
N.E.C.

Cord grip or conduit from U.L.
Listed gate operator(s) (see text)

(b)

U.L. Listed Control Panel Enclosure

450 MPS Control Panel

J1 J2

1 2 3 4 5 6 7 8
OP COM CL CL COM OP

Lamp Moto r 1 Motor 2

Op.

1

High-voltage
terminal strip

J3

Op.

2

Ground

Figure 15. Wiring detail (a) inside the junction box and (b) from the junction box or operator to the

high-voltage terminal strip on the 450 MPS control panel

Red: Closing pressure

Hydraulic
power
unit

Figure 16. The bypass valves on the front of the power unit

Green: Opening pressure

Bypass valves

Receptacle for hydraulic pipe fitting

19

Check the Motor’s
Direction of Rotation

After you have connected the main power supply, one
activating device, and the operator(s) to the control
panel, you need to check the direction of rotation for
each operator motor in your gate design.

To check a motor’s direction of rotation, you must have
three closed circuits on terminal block J3. Install one
circuit between terminals 11 and 13, another circuit
between terminals 13 and 21, and another circuit (or
stop device) between terminals 14 and 15.

You cannot check the motor’s direction of rotation
without these circuits (jumpers) or the accessories.
When properly prepared for testing, the LEDs DL2 and
DL3 should be illuminated.

WARNING! Running the operator—even for
testing purposes—without a connected
reversing device is potentially dangerous. Do
not place yourself within the path of the
moving gate during your test.

Disengage the operator(s) with the Manual Release key,
and open the gate by hand about halfway.

Next, engage the operator(s) with the Manual Release
key so that you can check the rotation of the motor(s).

Turn on the main power and send an activating signal to
the operator. The gate leaf (or leaves) should open. If a
gate leaf closes, then you need to turn off the main
power and reverse the connection of the brown and
black (or red and black) wires on terminal block J2 for
the operator controlling that leaf. Then you need to
recheck the rotation direction again.

If your gate system has two operators, be sure the motor
of each rotates in the correct direction.

After having completed your test of the motor’s
direction of rotation, replace any test circuits you
installed (between terminals 11 and 13, between 13 and
21, and between 14 and 15) with the proper reversing

and stop devices. The instructions for installing such
accessories follow.

Connect Other Devices

WARNING! Turn the main power off before
you make any electrical connections or set any
switches inside the control panel box.

Now you can connect additional reversing and activat­ing devices to the control panel. Refer to Figure 13 for
the general control panel layout, and refer to Figure 14
for the layout of the terminal strip.

Note: The 450 MPS control panel allows a
maximum accessory load of 500 mA.

Power Supply for Accessories: You can access a 30
VDC output for supplying power to accessories that
require DC voltage through terminals 9 and 10 (located
above the label 30 Vcc) on terminal block J3. In most
cases, this source can be used to power 24 VDC
accessories.

Reversing Devices: Reversing devices include
photocells, inductive loops, and so forth. All of the
reversing devices should have contacts of the normally
closed (N.C.) type. Where you connect a device
depends on whether you want the device to operate
during opening or during closing.

Note: UL does not recognize the FAAC
system with loop detectors or safety edges.
FAAC photocells must be used to comply with
UL 325.

Caution: Failure of a reversing device that
operates during opening causes a gate to lock
in the closed position and requires the use of
the manual key release.

To wire photocells, refer to Figure 14 (see FSWOP for
opening photocells, and FSWCL for closing photocells—
connect the photocells exactly as shown). See Figure 17
for the wiring of inductive loops. In either case, if you
have multiple devices, wire them in series.

20

LOCK

12345678

NC
NO

COM

Free Exit/Safety

Loop Detector

A: 1 = COM
2 = NC
3 = NO
B: 4 = COM
5 = NO
6 = RESET
7 = +
8 = ­9 & 10 = LOOP

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

Figure 17. Wiring diagram showing loop detector

FAAC International, Inc., strongly recommends you
install reversing devices. If you choose not to install
such devices, then you must install the necessary
circuit(s) for the control panel to work.

• If you do not install an opening reversing

device, install a circuit between 11 and 21 on
terminal block J3.

• If you do not install a closing reversing device,

install a circuit between 13 and 21 on terminal
block J3.

In addition, terminal block J3 requires a fail-safe
connection for the photocells. Connect the photocells to
terminals 20 and 21.

Activating Devices and Radio Receiver: The acti­vating devices and radio receiver for your gate must
have normally open (N.O.) contacts. If you have only
one gate leaf, connect such devices to terminals 16 and

17. If your gate has two leaves, connect the devices to
terminals 18 and 19.

3

COM

21

NO

NC

White
wire
leads

In addition, terminal block J3 requires a fail-safe
connection for the transmitter of your photocells.
Connect the transmitter to terminals 20 and 21 in the
FSWTX grouping.

See Figure 18 for how to wire a three-wire receiver and
Figure 19 for how to wire a four-wire receiver.

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

+OPCL—NCB A ————— + +—

NOCOM 24

3-Wire

Receiver

VDC

LOCKFSWTX W.LIGHT30 Vcc FSW STOP

Figure 18. Connect a three-wire receiver

21

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

+OPCL—NCB A ————— + +—

4 Wire

Receiver

+NC COMNO

–

LOCKFSWTX W.LIGHT30 Vcc FSW STOP

Figure 19. Connect a four-wire receiver

Decoder Card: If you are installing the Digicard
magnetic card reader, or the Digikey keyboard, use the
quick-fit connector J4 for the DS (formerly the MD01)
decoder card (see Figure 13).

Open/Hold Open Device: To open and hold open the
gate, an Open/Hold Open device must make a set of
contacts across terminals 18 and 19 (or 16 and 17) and
must break a set of contacts between terminals 13 and
21 (see Figure 20).

Stop Button: The stop button you install must have
normally closed (N.C.) contacts. Multiple stop buttons
must be wired in series. Connect your stop device
between terminals 14 and 15.

Note: If you choose not to install a stop button,
you must install a circuit between these
terminals for the control panel to work.

The LED Indicators: The five light-emitting diodes
(LEDs) on the control panel can be used to check for
the proper functioning of the devices you attach to the
control panel. The LED lights are on whenever the
contacts are closed across each of the respective
terminals.

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

+OPCL—NCB A ————— + +—

LOCKFSWTX W.LIGHT30 Vcc FSW STOP

DL1 and DL2 should illuminate only when an
activating signal is sent for 2 and 1 gate leaves,
respectively. DL3 should be illuminated except when
the stop button is pressed. DL4 and DL5 should be
illuminated except when the reversing devices, for
opening and closing, respectively, are triggered. Use the
LEDs and the table below to determine if the accessory
devices you have installed are operating properly.

LED On Off

DL1,
Open 2 leaves
DL2,
Open 1 leaf
DL3, Stop Command not

DL4,
FTSW Open

Command
active
Command
active

active
Opening
reversing

Command
inactive
Command
inactive
Command
active
Reversing

device triggered
devices not
triggered

DL5,
FTSW Close

Closing
reversing

Reversing

device triggered
devices not
triggered

Electric Lock: An electric lock can make use of the
reversing stroke function controlled by DIP switch 5. A
reversing stroke is a short closing phase that allows the
electric lock time to disengage itself before the operator
starts its opening. Use DIP switch 5 if necessary for
your lock to function correctly. Connect your lock to the
terminals 24 and 25. The terminals provide 12 VAC
pulsed power.

Connect a magnetic locking device as shown in Figure
21, below.

Warning Light: Connect a warning light to terminals
22 and 23 in the group labeled W.LIGHT in terminal
block J3. The terminals provide an output voltage of 30
VDC, maximum power 3 Watts. This output voltage
will power most 24 VDC warning lights.

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

+OPCL—NCB A ————— + +—

LOCKFSWTX W.LIGHT30 Vcc FSW STOP

Relay

24 VDC

COM

SPDT

NO

NC

Figure 20. Connect an Open/Hold Open device

with an external relay

Switch

22

COM

–

Mag
Lock

Figure 21. Connect a mag lock to the 450 MPS

NC

+

control panel

Relay

24 VDC

SPDT

Note: The behavior of the warning light varies
according to the logic you have set:

Logics A, S, E, EP, and B: The warning light
is on steadily during opening and the pause
phase. During closing, the light flashes.

Logic C: The warning light is on steadily
during opening and flashes during closing.

Set Other Operating Controls

WARNING! Turn off the main power before
you make any electrical connections or set any
switches inside the control panel box.

Note: Some DIP switch assemblies are labeled
differently depending on their date of
manufacture. OPEN indicates off and ON
indicates on.

You need to set DIP switches and adjust some
potentiometers on the control panel for your gate's
operation. The 450 MPS Control Panel has 5 DIP
switches and 4 potentiometers that control a wide range
of functions.

Set DIP Switches

Switches 1, 2, and 3 (Operating Logic): The 450 MPS
Control Panel offers six operating modes:

• A (automatic)

• S (security)

• E (semi-automatic)

• EP (semi-automatic, step by step)

• B (manned, pulsed)

• C (manned and constant)

Refer to the operating logic tables later in these
instructions for more detail.

Switches 1, 2, and 3 control the operating logic
according to the following scheme:

Logic

A off off off

S on off off

E off on off

EP on on off

B on on on

C off off on

1 2 3

DIP Switch

Switch 4 (Reversing Device Behavior on Closing):
Refer to the operating logic tables later in these
instructions and to the chart below for how to set DIP
switch 4.

Gate Behavior

During Closing

Gate immediately
reverses its direction

Gate stops and reverse its
direction when reversing
device is no longer
triggered

Switch 5 (Reversing Stroke): Some electric locks
require a reversing stroke to disengage the lock. If your
lock requires this reversing stroke, set DIP switch 5
according to the following chart.

Reversing Stroke DIP Switch 5

Not activated off

Activated on

DIP Switch 4

off

on

Adjust the Potentiometers

The four potentiometers control the torque (or
pressure), the pause time between opening and closing,
the opening/closing time of operation, and the leaf delay
on closing.

Torque (Pressure): The torque (or pressure)
potentiometer on the 450 MPS must be turned all the
way clockwise for the 750 Operator. The potentiometer
controls voltage to the operator, which can affect the
life of the operator’s motor. The torque/pressure
potentiometer cannot be used to adjust the operator’s
hydraulic operating pressures.

Caution: Failure to turn the torque/pressure
potentiometer to maximum in the clockwise
direction jeopardizes the life of the motor of
your operator.

WARNING! Adjust the operating pressure on
the 750 Operator only by means of the
hydraulic bypass valve screws. See pages 18
and 24.

23

Pause Time: The pause time between opening and
closing can be adjusted from 5 to 240 seconds. Turn the
potentiometer clockwise to increase the pause time and
counterclockwise to decrease the pause time.

Opening/Closing Time: The opening/closing time is
adjustable from 10 to 62 seconds. The approximate
opening/closing time for a 90-degree opening is 18
seconds. Turn the potentiometer clockwise to increase
the time and counterclockwise to decrease the time.

For optimal operation, set the time so that the motor
remains active for a couple of seconds after the leaf has
reached its limit stop for opening and for closing.

Leaf Delay: You may choose to delay one leaf on
closing for overlapping gate leaves. Be sure the operator
on the leaf for delayed closing is connected to Motor 1.
On opening, the leaf connected to Motor 2 is delayed

2.5 sec.

Note: You cannot adjust this opening delay of
the operator connected to Motor 2. However,
you can avoid the opening delay—and closing
delay—by connecting both operators (and their
capacitors) to Motor 1.

The time is adjustable from 0 to 28 seconds. Turn the
potentiometer clockwise to increase the time and
counterclockwise to decrease the time.

Note: If one-leaf gate designs, be sure to set
the potentiometer for leaf delay to its minimum
(0 seconds).

Note: If the opening/closing time is set at less
than the leaf delay time, the delayed leaf closes
at the end of the closing time.

Bleeding the

You need to bleed the hydraulic system before setting
the gate up for normal operation.

To run the gate leaf through an open-close cycle, make
sure the gate is set up for hydraulic operation (the
Manual Release lever is turned up) in the A mode.
Activate the gate once to open, pause, and then
automatically close. The gate needs to open and close
three times.

Then you need to allow the gate to sit idle for a full five
minutes. During this time, you can disengage the
hydraulic system (turn the Manual Release lever down)
and make sure that the top cover is removed from the
drive unit to allow you access to the bleed screws on
either end of the unit.

With the hydraulic system disengaged, open the gate
leaf by hand to a half-opened position. Re-engage the
hydraulic system.

If you have a CBAC model of the 750 Operator (with
hydraulic locking in the fully opened and fully closed
positions), then first try to move the gate leaf. If you are
unable to make the gate leaf move, then you do not need
to bleed the hydraulic system.

If you do need to bleed the hydraulic system, then next
open the bleed screw that is on the same side of the
drive unit as you are. Open the screw less than a full
turn. Next, pull the gate leaf toward you until just oil
(and no bubbles) comes out of the drive unit. Then close
the bleed screw.

Next, release the air from the other end of the drive unit
in the same manner.

Finally, test the automatic operation of the gate. If the
gate does not operate smoothly, then repeat the bleeding
process again.

Hydraulic System

For the 750 Operator to work smoothly, it is critical that
you bleed the hydraulic system of any air. Before you
bleed the system, be sure that you have removed the
vent screw on the top, left side of the power unit.

One bleeding operation consists of the following:

• Running the gate leaf through three open-

close cycles

• Allowing the gate leaf system to sit idle for

5 minutes

• Releasing the air from each end of the drive

unit through the bleed screw holes (see Fig­ure 18)

Adjusting the Bypass Valves

The pressure a gate leaf applies to an obstacle in its path
is determined by the bypass valve adjustment. FAAC
recommends that the gate should stop when it meets
with a force of more than 33 lb (15 kg).

WARNING! The pressure valves may operate
the gate leaf with enough force to endanger
people and seriously damage the gate leaf
itself. Increase the pressures in small
increments (1/4 turn), and set the pressure
adjustments at the minimum level necessary for
the gate's operation.

24

Bleed screw

Ram unit

Gate leaf

Bleed screw

Figure 22. The location of the bleed screws on

the drive unit, top view

WARNING! The pressure the gate leaf applies
to the obstruction is determined by the bypass
valve adjustment. It is the installer's
responsibility to make sure the pressures are
correctly set.

25

Installing an Extension Arm

Some gate installations do not meet the geometrical
constraints shown in Figure 2. In those situations, the
750 Extension Arm option can be used along with the
750 drive unit, power unit, and control panel to install
an unobtrusive gate operator.

Using the 750 Extension Arm means that you do not
have to permanently remove any leaf hinges, the gate
leaf does not need to form a 90-deg angle on the bottom
corner nearest the gate post, and the relative location of
the rotation axis is not so restricted.

The geometrical constraint for using the 750 Extension
Arm is that the center of the splined shaft on the drive
unit must be within 6 in. (15.25 cm) of the axis of
rotation of the gate leaf.

WARNING! The farther away the splined
shaft is from the gate's axis of rotation, the
greater the risk of danger from pinch points.

Install the drive unit so that the splined shaft is as near
as possible to the gate's rotation axis and is directly
beneath the center of the fully closed gate leaf.

You need to position the extension collar (see Figure

23) so that it smoothly slides within the extension U
from the fully closed to the fully opened position. Note

that the position of the extension collar is affected by
the overlap of the extension bar and extension U.

Attach the 750 extension collar to the bottom of the gate
leaf with a 7/16 in. (1.1 cm) bolt.

Weld together the extension bar and extension U
according to Figure 23.

Caution: Do not weld anything to or on the
inside of the sleeve of the splined shaft.

Next, weld the outside of the sleeve for the splined shaft
solidly to the inside of the hole in the end of the
extension bar.

Follow the rest of the instructions for installing the 750
Operator. With an extension arm, you need not worry
about installing a gate leaf shoe nor about installing the
gate leaf in the shoe. Instead, you will install one end of
the welded extension arm over the splined shaft and the
other end around the extension collar.

In addition, you will need to provide a washer beneath
the extension collar to keep the extension U from falling
off the collar. You also need to shield any pinch points
around the extension arm.

(a)

750 extension
bar

(b)

Figure 23. The 750 Extension Arm, (a) side view and (b) top view

Minimum overlap of
2 1/2 in. (6.4 cm)

750 extension U

Minimum overlap of
2 1/2 in. ( 6.4 cm)

Extension bar

Hole in the extension bar fits around and
is welded to the outside of the sleeve of
the splined shaft

Bottom of
gate leaf

750 extension
collar is attached
to the bottom of
the gate leaf

Extension U

Extension
collar slides
within
extension U

26

Maintenance

The 750 Operator

The FAAC recommended maintenance schedule varies
according to the frequency of use of the operators,
whether lightly used operators (once or twice an hour)
or heavily used operators (many cycles per hour).

Check the oil.

To check the oil level correctly, remove the oil filler cap
on the top of the power unit. A dip stick is attached to
the bottom of the cap for checking the oil level as
shown in Figure 24.

Light duty use: check once per year
Heavy duty use: check every 6 mo

Change the oil.

Changing the oil completely in the hydraulic system of
the 750 Operator requires removing the power unit and
drive unit from their installed positions unless you are
able to pump the oil out of both units.

Light duty use: change every 4 yr
Heavy duty use: change every 2 yr

Figure 24. When you check the oil, make
sure the oil level falls between the
minimum and maximum marks on the oil
dip stick

Check the pressure settings.

Light duty use: check once per year
Heavy duty use: check every 6 mo

Check all reversing devices.

Every six months, you should verify that all installed
reversing devices work properly.

The Control Panel

The control panel requires no maintenance.

Troubleshooting

WARNING! Before you do any work on the control panel, be sure to turn off the main power.

Problem: The gate does not respond to an activating
signal.

Solution:

Verify that you have correctly wired the operator to the
control panel.

Verify that the LED DL3 is on. If it is not illuminated,
then check the fuses on your control panel.

If the LED DL3 is not illuminated and your fuses are
okay, then the stopping device is being triggered and is

preventing the gate from responding to your signal. If
you have no stopping device installed, then be sure you
have installed a jumper across the appropriate terminals.

Verify that your activating device works properly. Either
DL1 or DL2 (depending on your gate design) should
illuminate when you signal the gate to close (or open)
and LED DL3 should be on. If either DL1 or DL2 does
not illuminate when you signal the gate, then the
problem may be in your activating device. Short across
the appropriate terminals. If the short causes the gate to

27

close (or open), then the problem is in the activating
device. Repair or replace the device.

Problem: The radio controlled opener does not open
the gate.

Solution:

Check the light on the front of the remote transmitter. It
should illuminate when you signal the gate. If it does not
illuminate and if the batteries are okay, repair or replace
the transmitter.

Verify that the wiring for the radio controlled device is
correct.

Check the wiring for the antenna and correct it if
necessary.

Check DL1 and DL2. One should illuminate when the
transmitter button is pressed.

Determine if the fault is in the receiver by temporarily
connecting a push button device across the appropriate
terminals. If such a push button device opens the gate,
repair or replace the receiver.

Problem: The gate doesn't open (or close) though the
motors are running.

Solution:

Make sure that the motor is running in the right
direction, and make sure the Manual Release mechanism
has fully engaged the hydraulic system.

Increase the bypass pressure in small

1

/4 turn increments

to see if the hydraulic system needs more pressure.

Problem: The gate opens but does not close.

Solution:

Make sure you have selected the desired operating
mode.

Verify that the reversing devices are working properly.
DL4 or DL5 should illuminate when a reversing device
is triggered. If either does not illuminate, then one of

your reversing devices is preventing the gate from
responding to your signal. Check your reversing
devices.

If no reversing devices are installed, make sure a circuit
is installed between appropriate terminals.

If the motor is running, insure that the bypass valves are
correctly adjusted. Increase the bypass pressure in small

1

/4 turn increments to see if the hydraulic system needs

more pressure.

Problem: The gate does not fully open (or close).

Solution:

Increase the bypass pressure(s) to see if the hydraulic
system needs more pressure.

Check the operator's motor run time selection. You
should set a time that is just longer than the rated speed
of your model of operator. For example, because the 400
CBAC has a rated opening time of 17 sec, you should
select a time that is just longer than the opening time.

Check to see that there are no obstructions in the path of
the gate or that the hinges are not binding.

Problem: The operator doesn't work smoothly and
the gate jerks as it opens and closes.

Solution:

Check the oil level in the operator.

Make sure the Manual Release mechanism has fully
engaged the hydraulic operation of the operator.

Bleed the air from the hydraulic system by cycling the
gate (opening and then closing) 10 times and pausing for
a couple of minutes between cycles.

Make sure that a flexible gate leaf is not the problem. If
the gate leaf flexes, then stiffen the gate or use a slower
operator.

28

Limited Warranty

To the original purchaser only: FAAC International, Inc., warrants, for twenty-four (24) months from the date of invoice, the
gate operator systems and other related systems and equipment manufactured by FAAC S.p.A. and distributed by FAAC
International, Inc., to be free from defects in material and workmanship under normal use and service for which it was intended
provided it has been properly installed and operated. FAAC International, Inc.'s obligations under this warranty shall be limited to
the repair or exchange of any part of parts manufactured by FAAC S.p.A. and distributed by FAAC International, Inc. Defective
products must be returned to FAAC International, Inc., freight prepaid by purchaser, within the warranty period. Items returned will
be repaired or replaced, at FAAC International, Inc.'s option, upon an examination of the product by FAAC International, Inc.,
which discloses, to the satisfaction of FAAC International, Inc., that the item is defective. FAAC International, Inc. will return the
warranted item freight prepaid. The products manufactured by FAAC S.p.A. and distributed by FAAC International, Inc., are not
warranted to meet the specific requirements, if any, of safety codes of any particular state, municipality, or other jurisdiction, and
neither FAAC S.p.A. or FAAC International, Inc., assume any risk or liability whatsoever resulting from the use thereof, whether
used singly or in combination with other machines or apparatus.
Any products and parts not manufactured by FAAC S.p.A. and distributed by FAAC International, Inc., will carry only the
warranty, if any, of the manufacturer. This warranty shall not apply to any products or parts thereof which have been repaired or
altered, without FAAC International, Inc.'s written consent, outside of FAAC International, Inc.'s workshop, or altered in any way
so as, in the judgment of FAAC International, Inc., to affect adversely the stability or reliability of the product(s) or has been
subject to misuse, negligence, or accident, or has not been operated in accordance with FAAC International, Inc.'s or FAAC S.p.A.'s
instructions or has been operated under conditions more severe than, or otherwise exceeding, those set forth in the specifications for
such product(s). Neither FAAC S.p.A. or FAAC International, Inc., shall be liable for any loss or damage whatsoever resulting,
directly or indirectly, from the use or loss of use of the product(s). Without limiting the foregoing, this exclusion from liability
embraces a purchaser's expenses for downtime or for making up downtime, damages for which the purchaser may be liable to other
persons, damages to property, and injury to or death of any persons. Neither FAAC S.p.A. or FAAC International, Inc., assumes nor
authorizes any person to assume for them any other liability in connection with the sale or use of the products of FAAC S.p.A. or
FAAC International, Inc. The warranty hereinabove set forth shall not be deemed to cover maintenance parts, including, but not
limited to, hydraulic oil, filters, or the like. No agreement to replace or repair shall constitute an admission by FAAC S.p.A. or
FAAC International, Inc., of any legal responsibility to effect such replacement, to make such repair, or otherwise. This limited
warranty extends only to wholesale customers who buy directly through FAAC International, Inc.'s normal distribution channels.
FAAC International, Inc., does not warrant its products to end consumers. Consumers must inquire from their selling dealer as to
the nature and extent of that dealer's warranty, if any.

This warranty is expressly in lieu of all other warranties expressed or implied including the warranties of
merchantability and fitness for use. This warranty shall not apply to products or any part thereof which have
been subject to accident, negligence, alteration, abuse, or misuse or if damage was due to improper installation
or use of improper power source, or if damage was caused by fire, flood, lightning, electrical power surge,
explosion, wind storm, hail, aircraft or vehicles, vandalism, riot or civil commotion, or acts of God.

FAAC International, Inc.

303 Lexington Avenue

Cheyenne, WY 82007

750 IM, 9/98