TM
TM
Illustrated Instruction Manual
for ML750 Garage Door
Operator
Chamberlain Australia Pty Ltd
PO Box 1446
Lane Cove NSW 1595
Chamberlain New Zealand Ltd
P.O. Box 100-221
Auckland 1330
N2966
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Before You Begin
1. Look at the wall or ceiling above the garage door. The header bracket must be securely fastened to structural
supports.
2. Do you have a finished ceiling in your garage? If so, a support bracket and additional fastening hardware (not
supplied) may be required.
3. Depending on your door's construction, you might need a special door arm. See your dealer.
4. Do you have an access door in addition to the garage door? If not, Model 1702AML Outside Quick Release
Accessory is required.
Door Types
1
A. One-Piece Door with Horizontal Track Only.
B. One-Piece Door with Horizontal and Vertical Track – Special door arm and the Protector System™ (30(8))
required. See your dealer.
C. Sectional Door with Curved Track – See 20B – connect door arm. The Protector System™ (30(8)) is required for
doors that are over 2,5m in height
D. Canopy door – Special door arm and the Protector System™ (30(8)) required. See your dealer.
2
2
Tools Required
2
1
10 mm, 8 mm,
4,5 mm, 4 mm
11mm, 13mm
3
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Hardware Provided
3
(1) Hex Bolt
(15) Rail Grease
5 (2x)
(2x)
6
15 (1x) (2) Clevis Pin
(16) Lock Nut
(4x)
1
(3) 8mm Carriage Bolt
(17) Metric Tapping
4(4x)
NOTICE
Screw
(4) Wood Screws
(5) Flat head Screws
(6) Clevis Pin
(2x)
2
(18) Hex Screw
(19) Spring
(20) Flat Washer
(21) Stop Bolt
3(3x)
(1x)
8
7(1x)
(7) Rope
(8) Handle
(9) Wall mount bracket
(10) Anchor
13(7x)
(4x)
(1x)
16
14
(4x)
11
(2x)
19
10
17
(2x)
9 (1x)
20
(11) Concrete Anchor
(12) Lock Washer
(13) Hex Nut
(2x)
(1x)
12(7x)
21(1x)
(3x)
18
(14) Ring Fastener
4
7
6
2
3
4
5
1
14
13
11
12
9
15
10
8
10
Completed Installation
As you proceed with the assembly, installation and adjustment procedures in this manual, you may find it helpful to
refer back to this illustration of a completed installation.
(1) Header Sleeve
(2) Idler Pulley Bracket
(3) Trolley
(9) Light Lens
(10) Manual Release Rope & Handle
(11) Curved Door Arm
(12) Straight Door Arm
(13) Door Bracket & Plate
(14) Header Bracket
(4) Rail
(5) Belt
(6) Hanging Bracket
(7) Power Cord
(8) Opener
(15) Trolley Release Arm
4
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ASSEMBLY
5
4
2
3
2
5
1
Assemble the Rail
Grease inside edges of rail sections using grease (1). Place rail pieces (2) on flat surface for assembly. All four rail sections are interchangeable.
Slide rail brace (3) onto rail section. Connect rail by sliding rail brace onto next rail section. Tap rail assembly (4) on piece of wood (5) until rail
sections are flush. Repeat with remaining rail sections.
6
6
Install the Belt
8
Remove belt from carton and lay out on floor (do not allow
belt to twist). Hook the trolley connector (6) into the slot (7)
on the trolley (8).
7
Insert Trolley & Idler Pulley Bracket
7
into Rail
Slide idler pulley bracket (1) and inner trolley (2)
into back (opener) end of rail assembly (3), be
sure to insert idler pulley bracket as shown. Arrow
on trolley (7) must face toward front (header) end
7
of rail (4). Push idler pulley bracket toward front
(header) end of rail (4). Insert carriage bolt (5) into
bolt cut out in the idler pulley bracket (6).
4
6
3
4
1
5
2
5
5
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8
2
1
3
2
1
3
Attach Trolley to Rail
Slide outer trolley (1) into back (opener) end of the rail assembly
(2), be sure end with trolley release arm (3) is heading in
direction of opener. Slide outer trolley down rail until it engages
with inner trolley.
9
1
Fasten Rail to Opener and Install Belt
Remove four washered bolts (1) from top of opener.
Place rail (2) on opener, flush with stop (3) on top of
opener. Wrap belt (4) over sprocket (5). Push idler
pulley bracket assembly toward front of the rail to
eliminate excess slack in belt. Align bolt holes on
brackets (6) with bolt holes on opener. Secure
brackets to opener with previously removed bolts.
Tighten bolts securely.
3
5
6
4
2
The opener sprocket teeth must engage the
belt.
CAUTION: Use only those bolts
mounted in the top of opener. Use of
any other bolts will cause serious
damage to opener.
10
3
Attach Sprocket Cover
Place sprocket cover (1) on top of the opener (2), secure
with screws (3). Insert bolt (4) into trolley stop hole (5),
secure with washer (6) and nut (7).
1
4
2
5
6
7
7
6
4
3
6
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11
6
1
3
3
5
4
2
6
2
8
Install Header Sleeve and Tighten Belt
Slide header sleeve (1) onto rail (5). Slide flat washer (3), spring (2) and washer (3) onto carriage bolt (4). Thread nut (6)
onto carriage bolt until finger tight. Use an open end wrench (7) to tighten nut until the belt is approximately 2mm above
the base of the rail at its midpoint. DO NOT OVER TIGHTEN THE BELT. See image (8).
INSTALLATION SECTION
Wear protective goggles when working overhead to protect your eyes from injury.
Disengage all existing garage door locks to avoid damage to the garage door.
To avoid serious personal injury from entanglement, remove all ropes connected to the garage door before
installing the opener.
Note: It is recommended that the opener be installed no less than 2.1m above the floor where space permits.
12 Header Bracket Positioning
1
The header bracket must be rigidly fastened to a
structural support of the garage. Reinforce the
wall or ceiling with a 40 mm (1-1/2") board if
necessary. Failure to comply may result in
improper operation of safety reverse system.
4
You can attach the header bracket either to the
header wall (1) or to the ceiling (3). Follow the
instructions which will work best for your particular
requirements.
2
With the door closed, mark the vertical centerline (2)
of the garage door. Extend line onto header wall
above the door.
3
Open door to highest point of travel. Draw an
intersecting horizontal line (4) on header wall 5 cm
(2") above high point to provide travel clearance for
top edge of door.
7
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2
13
5
5
3
1
4
5
5
50mm
(2")
A
1
2
5
150mm
(6")
5
3
3
6
B
Install the Header Bracket
NOTE: Refer to vertical center and horizontal lines created in step 12 for proper placement of header bracket.
A. Wall Mount: Center the header bracket (1) on the vertical center line (2) with the bottom edge of the header bracket
on the horizontal line (4) (with the arrow pointing toward the ceiling). Mark all of the header bracket holes (5). Drill
4.5 mm (3/16") pilot holes and fasten the header bracket with wood screws (3).
B. Ceiling Mount: Extend vertical center line (2) onto the ceiling. Center the header bracket (1) on the vertical mark no
more than 150 mm (6") from the wall. Make sure the arrow is pointing toward the opener. Mark all of the header
bracket holes (5). Drill 4.5 mm (3/16") pilot holes and fasten the header bracket with wood screws (3). For concrete
ceiling mount, use concrete anchors (6) provided
14
Attach Rail to Header Bracket
Position opener on garage floor below the header bracket.
Use packing material to protect the cover. Raise rail until
holes in the header sleeve and holes in the header bracket
align. Join with clevis pin (1). Insert ring fastener (2) to
secure.
NOTE: To enable the rail to clear sectional door springs, it
may be necessary to lift opener onto a temporary support.
The opener must either be secured to a support or held
1
firmly in place by another person.
2
8
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15
Position the Opener
NOTE: A 25mm (1") board (1) is
convenient for setting an ideal door-to-rail
distance (unless headroom is not
sufficient).
1
Raise the opener onto a stepladder. Open
garage door. Place a 25mm (1") board (1)
laid flat on the top section of door near the
centerline as shown. Rest the rail on the
board.
If the raised door hits the trolley, pull down
on the trolley release arm to disconnect the
inner and outer trolley sections. The trolley
can remain disconnected until connecting
door arm to trolley is completed.
Hang the Opener
16
A
The opener must be securely fastened to a
structural support of the garage.
Three representative installations are shown. Yours
may be different. Hanging brackets (1) should be
angled (Figure A) to provide rigid support. On finished
ceilings, (Figure B) attach a sturdy metal bracket (not
supplied) (4) to a structural support before installing
the opener. For concrete ceiling mount, (Figure C), use
concrete anchors (5) provided.
B
2
2
4
1
3
1
3
2
1
3
6
On each side of opener measure the distance from the
opener to the structural support (or ceiling).
6
Cut both pieces of the hanging bracket to required
lengths. Flatten one end of each bracket and bend or
twist to fit the fastening angles. Do not bend at the
bracket holes. Drill 4.5mm (3/16") pilot holes in the
structural supports (or ceiling). Attach brackets to
supports with wood screws (2).
2
C
5
Lift opener and fasten to hanging brackets with screw,
lock washer and nut (3). Check to make sure rail is
centered over the door. REMOVE 25mm (1") board.
Operate door manually. If door hits the rail, raise
header bracket. Use rail grease and lubricate bottom
surface of rail (6).
1
2
2
3
5
3
6
9
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Attach Emergency Release Rope & Handle
17
Thread one end of rope (1) through hole in top of red handle
so "NOTICE" reads right side up as shown (3). Secure with
an overhand knot (2). Knot should be at least 25mm (1")
from end of the rope to prevent slipping.
2
Thread other end of rope through hole in release arm of the
outer trolley (4). Adjust rope length so that handle is 1.8m
(6 feet) above the floor. Secure with an overhand knot.
4
1
2
NO
TI
CE
NOTE: If it is necessary to cut rope, heat seal cut end with
3
a match or lighter to prevent fraying.
Connect Electric Power
TO AVOID INSTALLATION DIFFICULTIES, DO NOT RUN THE GARAGE DOOR OPENER UNTIL
INSTRUCTED TO DO SO.
Ensure door opener is installed to a power outlet with trip switch or fuse.
1
Install Light
24V/21WMax
18
Gently pull lens (2) downward until the lens hinge is in the fully
open position. Do not remove the lens. Install a 24V/21W
2
maximum light bulb (1) in the socket as shown. The light will
turn on and remain lit for 2-1/2 minutes when power is
connected. After 2-1/2 minutes it will turn off. To close, gently
push diffuser up until engaged.
Replace burnt out bulbs with heavy duty light bulbs.
19
3
4
1
A. 0-100mm
B. 150-250mm
2
3
A
B
C
4
1
1
1
2
2
3
4
Fasten Door Bracket
If you have a canopy garage door, a door arm conversion kit is required. Follow the installation instructions included with the
replacement door arm. Exercise care in removing and assembling arm conversion kit. Keep fingers away from the sliding
parts.
NOTE: Horizontal and vertical reinforcement is needed for lightweight garage doors.
Sectional and One-Piece Door Installation Procedure:
Door bracket (1) has left and right side fastening holes. If your installation requires top and bottom fastening holes use
both the door bracket and door bracket plate (2) as shown.
1. Center door bracket (with or without door bracket plate, as required) at the top inside face of door as shown. Mark
holes.
A.Standard Sectional or One-piece doors: locate bracket at inside face of the door.
B. Sectional doors with two horizontal roller channels: 150 - 250mm below the top of the door.
2. A. Wooden doors
Drill 8mm holes (5/16") and fasten the door bracket with nut, lock washer, and carriage bolt (3).
B. Sheet metal doors
Fasten with wood screws (4).
C. One-piece door optional
Fasten with wood screws (4).
3
2
6
10
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20
A
7
B
4
5
1
6
7
3
2
6
4
5
1
8
3
2
6
9
7
6
3
5
4
Assemble Door Arm
A. ONE-PIECE DOOR INSTALLATION:
Fasten the straight (1) and curved (2) door arm sections together to the longest possible length (with a 2 or 3 hole
overlap) using hardware (3,4 and 5). With the door closed connect the straight door arm section (1) to the door bracket
with clevis pin (6). Secure with ring fastener (7). Disconnect the inner and outer trolley. Slide the outer trolley back toward
the opener and join the curved arm (2) to the connector hole in the trolley (8) with clevis pin (6). It may be necessary to
lift the door slightly to make the connection. Secure with ring fastener (7).
NOTE: When setting the up limit, the door should not have a “backward” slant when fully open. A slight backward slant
(9) will cause unnecessary bucking and/or jerking operation as the door is being opened or closed from the fully open
position.
B. SECTIONAL DOOR INSTALLATION:
Connect according to Figure B, then proceed to Step 21.
11
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3
21
2
2
6mm
3
LOCK
LIGHT
2
1
1
2
WHT
-2
1
4
D
-1
E
R
WHT
RED
3
6
4
5
3
4
Install Door Control (optional)
Locate door control where the garage door is visible, away from door and door hardware and out of the reach of
children. Mount at least 1.5 m (5 feet) above the floor
Serious personal injury from a moving garage door may result from misuse of opener. Do not allow children to
operate the door control or remote control transmitter.
Permanently fasten the caution label permanently to the wall near the door control as a reminder of safe
operating procedures.
There are 2 terminals (1) on the back of the door control (2). Strip about 6mm (1/4") of insulation from bell wire (4).
Separate wires enough to connect the white/red wire to RED terminal screw 1 and the white wire to WHT terminal screw
2.
Fasten the door control to an inside garage wall with sheet metal screws (3) provided. Drill 4mm (5/32") holes and use
anchors (6) if installing into plasterboard wall. A convenient place is beside the service door and out of reach of children.
Run the bell wire up the wall and across the ceiling to the garage door opener. Use insulated staples (5) to secure wire.
The receiver quick connect terminals are located behind the light lens of the opener. Connect the bell wire to the terminals
as follows: white/red to red (1) and white to white (2).
Operation of the Door Control
Press to open or close the door. Press again to stop the door while moving.
Multi-function Door Control: Press the white square to open or close the door. Press again to stop the door while it is
moving.
Light Feature: Press the Light button to turn the opener light on or off. If you turn it on and then activate the opener, the
light will remain on for 2-1/2 minutes. Press again to turn it off sooner. The Light button will not control the opener lights
when the door is in motion.
Lock Feature: Prevents operation of the door from portable remote controls. However, the door will open and close from
the Door Control push button, the Outside Keylock and the Keyless Entry Accessories.
• To Activate: Press and hold the Lock button for 2 seconds. The push button light will flash as long as the Lock feature
is on.
• To turn off: Press and hold the Lock button again for 2 seconds. The push button light will stop flashing. The Lock feature
will also turn off whenever the “LEARN” button on the control panel is activated.
Remote Control Wall Mount Bracket
1. Attach bracket to wall using the two flat head screws provided
2. Slide the remote control onto bracket.
Note. Do not over tighten screws, allow enough clearance to slide remote down onto the bracket.
12
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22
1
2
3
4
5
6
7
LOCK
LIG
LOCK
LIGH
Program your Opener & Remote
Activate the opener only when door is in full view, free of obstruction and properly adjusted. No one should enter
or leave garage while door is in motion. Do not allow children to operate push button(s) or remote(s). Do not
allow children to play near the door.
Your garage door opener receiver and remote control transmitter are set to a matching code. If you purchase additional
remote controls, the garage door opener must be programmed to accept the new remote code.
Program the Receiver to Match Additional Remote Control Codes:
Using the orange “LEARN” Button
1. Press and release the orange “learn” button on the opener. The learn indicator light will glow steadily for 30 seconds
(1).
2. Within 30 seconds, press and hold the button on the hand-held remote that you wish to operate your garage door (2).
3. Release the button when the opener light blinks. It has learned the code. If the light bulb is not installed, two clicks will
be heard (3).
Using the Multi-Function Door Control:
4. Press and hold the button on the hand-held remote that you wish to operate your garage door (4).
5. While holding the remote button, press and hold the LIGHT button on the Multi-Function Door Control (5).
6. Continue holding both buttons while you press the push bar on the Multi-Function Door Control (all three buttons are
held) (6).
7. Release buttons when the opener light blinks. It has learned the code. If the light bulb is not installed, two clicks will be
heard (7).
Now the opener will operate when the remote control push button is pressed. If you release the remote control push
button before the opener light flashes, the opener has not learned the code.
To Erase all Remote Control Codes
To deactivate any unwanted remote, first erase all codes: Press and hold the orange “learn” button on opener until the
learn indicator light goes out (approximately 6 seconds). All previous codes are now erased. Reprogram each remote or
keyless entry you wish to use.
3-Channel Remote:
If provided with your garage door opener, the large button is factory programmed to operate it. Additional buttons on any
rolling code 3-channel remote or mini-remote can be programmed to operate this or other rolling code garage door
openers.
13
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Program your Keyless Entry
(optional)
23
1
2
3
Activate the opener only when door is in
full view, free of obstruction and properly
adjusted. No one should enter or leave
garage while door is in motion. Do not
allow children to operate push button(s)
or remote(s). Do not allow children to play
near the door.
NOTE: Your new Keyless Entry must be
programmed to operate your garage door
opener.
Program the Receiver to Match Additional
Remote Control Code
Using the orange “LEARN” Button:
1. Press and release the orange “learn”
button (1) on opener. The learn indicator
light will glow steadily for 30 seconds.
2. Within 30 seconds, enter a four digit
personal identification number (PIN) of
your choice on the keypad (2), then press
and hold the ENTER button.
3. Release the button when the opener light
blinks (3). It has learned the code. If the
light bulb is not installed, two clicks will be
heard.
NOTE: This method requires two people if
the Keyless Entry is already mounted outside
the garage.
4
5
Using the Multi-Function Door Control:
LOCK
LIGHT
4. Enter a four digit personal identification
number (PIN) of your choice on the
keypad, then press and hold ENTER.
6
5. While holding the ENTER button, press
and hold the LIGHT button on the
Multi-Function Door Control.
6. Continue holding the ENTER and LIGHT
buttons while you press the push bar on
the Multi-Function Door Control (all three
buttons are held).
LOCK
LIGH
LOCK
LIGHT
7
7. Release buttons when the opener light
blinks. It has learned the code. If the light
bulb is not installed, two clicks will be
heard.
Using the Wall-Mounted Door Control
(optional)
24
THE MULTI-FUNCTION DOOR CONTROL
Press the push bar (1) to open or close the door. Press again
to stop the door.
Light feature
Press the Light button (2) to turn the opener light on or off. It
will not control the opener light when the door is in motion. If
you turn it on and then activate the opener, the light will
remain on for 2-1/2 minutes. Press again to turn it off sooner.
1
2
Lock feature
LOCK
3
LIGH
T
Designed to prevent operation of the door from hand-held
remote controls. However, the door will open and close from
the Door Control, the Outside Keylock and the Keyless Entry
Accessories.
To activate, press and hold the Lock button (3) for 2 seconds.
The push bar light will flash as long as the Lock feature is on.
To turn off, press and hold the Lock button again for
2 seconds.The push bar light will stop flashing. The Lock
feature will also turn off whenever the “LEARN” button on the
opener panel is activated.
14
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Setting the Limits
25
Travel limits regulate the points at which the door will stop
when moving up or down. Follow the steps below to set the
limits.
To program the travel limits:
Note: Please ensure door is in open position.
1
2
1. Open the light lens. Press and hold the black button (1) until
the yellow indicator light (3) starts flashing slowly and then
release.
2. Push and hold the black button (1) until the door reaches the
desired open position. Adjust the position of the door by using
the black (1) and orange (2) buttons. Black moves the door
UP, orange moves the door DOWN.
3
3. Push the programmed remote control (4) or push bar on the
door control that was shipped with your opener. This sets the
full UP (open) position. The door will travel to the floor and
reverse back to the UP (open) position. The opener has
learned its travel limits.
4
1
Check to be sure the door is high enough for your vehicle.
Adjust if necessary.
4. The indicator light (3) will stop flashing when the limits have
been learned.
If the door stops or reverses before it reaches the floor
repeat steps 1-3 immediately. If this does not set the limits,
proceed to #15 of the TROUBLESHOOTING GUIDE and
follow the instructions for setting the limits manually.
NOTE: The worklight blinks 11 times whenever the Limits
Setting routine fails. If you get this error, proceed to #15 of the
TROUBLESHOOTING GUIDE section and follow the
instructions for setting the limits manually.
2
3
Setting the Force
26
The force setting button is located behind the light lens of
the opener. The force setting regulates the amount of power
required to open and close the door.
1. Open the light lens. Locate the orange button (2).
2. Push the orange button (2) twice to enter unit into Force
Adjustment Mode. The LED (3) (indicator light) will flash
quickly.
3. Push the programmed remote control (4) or push bar on the
door control that was shipped with your opener. The door will
travel to the DOWN (close) position. Push the remote control
(4) again, the door will travel to the UP (open) position.
2
4
The LED (3) (indicator light) will stop flashing when the force has
been learned.
2
(2x)
The door must travel through a complete cycle, UP and DOWN,
in order for the force to be set properly. If the unit cannot open
and close your door fully, inspect your door to insure that it is
balanced properly and is not sticking or binding.
The force MUST be learned in order to properly complete the
3
setting of the limits.
Test the Safety Reverse System
27
The safety reverse system test is important. Garage door must reverse on
contact with a 40mm obstacle laid flat on the floor. Failure to properly adjust
opener may result in serious personal injury from a closing garage door.
Repeat test once a month and adjust as needed.
Procedure: Place a 40mm obstacle (1) laid flat on the floor under the garage door.
Operate the door in the down direction. The door must reverse on the obstruction.
If the door stops on the obstruction, remove obstruction and repeat Setting the
Limits step 25. Repeat test.
When the door reverses on the 40mm obstacle, remove the obstruction and run
the opener through a complete travel cycle. Door must not reverse in closed
position. If it does, repeat Setting the Limits and Force steps 25 and 26 and repeat
safety reverse test.
Force limit test (lifting):
In addition to the Safety Reverse test it is recommended that you check your doors
lifting strength. To perform this test, place 20kg at the center of the door and ensure
that the door will not move up more than 500mm.
1
15
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Install the Protector System™
28
(See accessories)
The force, as measured on the closing edge of the door, should
not exceed 400 N (40kg). If the closing force is more than 400
N, the Protector System must be installed.
After opener has been installed and adjusted, The Protector
System™ accessory can be installed. Instructions are included with
this accessory.
The Protector System™ provides an additional measure of
4
safety against a small child being caught under a garage door.
It uses an invisible beam which, when broken by an obstruction,
causes a closing door to open and prevents an open door from
closing, it is strongly recommended for homeowners with young
children.
3
B
29
A
6
5
8
7
Special Features
A. Door within a door connection
Open light lens. Locate auxiliary quick connect
terminals. Insert bell wire into quick connect
terminals 8 and 7.
B. Flashing light connection
The flashing light can be installed anywhere.
Connect light leads to quick connect terminals
6 and 5. Terminal 5 is ground.
16
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30
1
3
2
4
LOCK
LIG
HT
7
9
5
6
8
Accessories
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
Model 84330AML Single-Function Remote Control
Model 84335AML 3-Function Mini Remote Control
Model 84333AML 3-Function Remote control
Model 8747AML
Model 770AML
Model 8454AML
Model 75AML
Wireless Keypad
The Protector System™
Multi-function Door Control Panel
Illuminated button
Model 760AML
Model 1702AML
Outside keyswitch
Outside Quick Release
WIRING INSTRUCTIONS FOR ACCESSORIES
Outside Keylock – To opener terminals: Red-1 and White-2
Protector System™ – To opener terminals: White-3 and Grey-4
Door Control Panel – To opener terminals: Red-1 and White-2
17
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Replacement Parts
31
C
D
V
12
Pb
Cd
Hg
31D533
41B4616
10A20
0-
001A5060-15
41A5843
41A5799
41A2828
41A5887
NOTI
12C810
C
E
83A11
31D536
12C777
178B34
183D177
12C778
183D178
210C42
12C855
41A5643-3
178B35
12B374
146A112
12B380
144C77
4A1008 1/2”
109A46 1”
216A206
41A5800
178B69
18
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32
158A49
41A589-1
41A5908
41A5735C
111A79
41D577
204C0161-2
41D538
108C82
19
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TROUBLE SHOOTING
1. Opener doesn't operate from either door control or remote:
12. Opener strains:
• Does the opener have electric power? Plug lamp into outlet. If it
doesn't light, check the fuse box or the circuit breaker. (Some outlets
are controlled by a wall switch.)
• Have you disengaged all door locks? Review installation instruction
warnings on page 1.
Door may be unbalanced or springs are broken. Close door and use
manual release rope and handle to disconnect trolley. Open and close
door manually. A properly balanced door will stay in any point of travel
while being supported entirely by its springs. If it does not, call for
professional garage door service to correct the problem.
13. Opener motor hums briefly, then won't work:
• Garage door springs are broken. SEE ABOVE.
• If problem occurs on first operation of opener, door is locked. Disable
door lock.
• Is there a build-up of ice or snow under door? The door may be frozen
to ground. Remove any obstruction.
• The garage door spring may be broken. Have it replaced.
2. Opener operates from remote but not from door control:
Repeat safety reverse test after adjustment is complete.
14. Opener won't activate due to power failure:
• Is door control button lit? If not, remove the bell wire from the opener
terminals. Short the red and white terminals by touching both terminals
at the same time with a piece of wire. If the opener runs, check for a
faulty wire connection at the door control, a short under the staples, or
a broken wire.
• Are wiring connections correct? Review page 4.
3. Door operates from door control but not from remote:
• Replace battery if necessary.
• Pull manual release rope and handle down and back to disconnect
trolley. Door can be opened and closed manually. When the power is
restored, pull the manual release handle straight down. The next time
the opener is activated, the trolley will reconnect.
• The Outside Quick Release accessory (if fitted) disconnects the trolley
from outside the garage in case of power failure.
15. Setting the limits manually:
1. Press and hold the black button until the yellow indicator light starts
flashing slowly then release.
2. Push and hold the black button until the door reaches the desired UP
(open) position. Adjust the position of the door by using the black and
orange buttons. Black moves the door UP (open) and orange moves
the door DOWN (close).
• If you have two or more remotes and only one operates, review
Program Your Opener, Remote and Keyless Entry steps 22 and 23.
• Is the door control button flashing? The opener is in lock mode. If you
have a Multi-Function Door Control, push and hold the Lock button for
2 seconds. The door control button will stop flashing.
4. Remote has short range:
• Is battery installed?
• Change the location of the remote control on the car.
• A metal garage door, foil-backed insulation or metal siding will reduce
the transmission range.
5. Door reverses for no apparent reason and opener light doesn't
blink:
• Is something obstructing the door? Pull manual release handle.
Operate door manually. If it is unbalanced or binding, call for
professional garage door service.
Check to be sure the door opens high enough for your vehicle.
3. Push the remote control or door control. This sets the UP (open) limit
and begins closing the door. Immediately press either the orange
or the black button. The door will stop.
Adjust the desired DOWN (closed) limit by using the orange (DOWN)
and black (UP) buttons. Check to be sure the door is fully closed
without applying excessive pressure on the rail (rail should not bow
upwards and the belt should not sag or droop below the rail). Push
the remote control or door control. This sets the DOWN (close) limit
and begins opening the door.
• Clear any ice or snow from garage floor area where garage
door closes.
• Repeat Setting Limits and Force, see adjustment steps 25 and 26.
Repeat safety reverse test after adjustment is complete.
6. Door reverses for no apparent reason and opener light blinks for
5 seconds after reversing:
Check The Protector System™ (if you have installed this accessory).
If the light is blinking, correct alignment.
7. Optional vibration isolator:
If operational noise is a problem because of proximity of the opener to
the living quarters, Vibration Isolator Kit 41A3263 can be installed. This
kit was designed to reduce the "sounding board effect" and is easy to
install.
8. The garage door opens and closes by itself:
Make sure remote push button is not stuck "on".
9. Door stops but doesn't close completely:
Repeat Setting the Limits, see adjustment step 25.
NOTE: If neither the black or the orange button is pressed before the
door reaches the floor, the operator will attempt an Automated Limit
Setting, reversing the door off the floor and stopping at the set Up limit.
If the yellow indicator light does not blink 10 times, limits setting has
been successful and doesn't need to be manually done; the DOWN limit
will be set to the floor. Regardless of setting the limits automatically
or manually, the force MUST be learned in order to properly
complete the setting of limits. Refer to section 26, Setting the
Force.
4. Open and close the door with the remote control or door control 2 or
3 times.
• If the door does not stop in the desired UP (open) position or
reverses before the door stops at the DOWN (close) position,
repeat Setting the limits manually one more time.
• If the door stops in both the desired UP (open) and DOWN (close)
positions, proceed to Test the Safety Reversal System.
Repeat safety reverse test after any adjustment of door arm length,
close force or down limit.
10. Door opens but won't close:
• Check The Protector System™ (if you have installed this accessory).
If the light is blinking, correct alignment.
• If opener light does not blink and it is a new installation, repeat Setting
the Limit and Force steps 25 and 26.
Repeat the safety reverse test after the adjustment is complete.
11. Opener light does not turn on:
Replace light bulb (24V/21W maximum). Replace burned out bulbs with
rough service light bulbs.
20
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CARE OF YOUR OPENER
SPECIFICATIONS
When properly installed, opener will provide high performance with
a minimum of maintenance. The opener does not require additional
lubrication.
Input Voltage...................230-240 VAC, 50Hz
Max. Pull Force ..............700N
Power .............................115W
Standby Power ...............5.5W
Normal Torque ................7Nm
Limit and Force Settings: These settings must be checked and
properly set when opener is installed. Weather conditions may cause
some minor changes in the door operation, requiring some
re-adjustments, particularly during the first year of operation.
Refer to Setting the Limits and Force on page 5. Follow the instructions
carefully and repeat the safety reverse test after any adjustment.
Remote Control: The remote control may be secured to a car sun visor
with the clip provided. Additional remotes can be purchased at any time
for use in all vehicles using garage. Refer to Accessories. Any new
remotes must be programmed into the opener.
Remote Control Battery: The lithium batteries should produce power
for up to 5 years. If transmission range decreases, replace battery.
Motor
Type................................DC gearmotor permanent lubrication
Drive Mechanism
Drive ...............................Belt with two-piece trolley on
steel rail.
Length of Travel..............Adjustable to 2.3m
Travel Rate .....................127-178mm per second
Lamp...............................On when door starts, off 2-1/2 minutes
after stop.
To Change Battery: To replace batteries, use the visor clip or
screwdriver blade to pry open the case. Insert batteries positive side up.
To replace cover, snap shut along both sides. Do not dispose of the old
battery with household waste. Take batteries to a proper disposal center.
Door Linkage ..................Adjustable door arm. Pull cord trolley release.
Safety
Personal .........................Push button and automatic stop in down
direction. Push button and automatic stop in
up direction.
Electronic........................Automatic force adjustment
Electrical .........................Transformer overload protector and low
voltage push button wiring.
MAINTENANCE OF YOUR OPENER
Once a Year:
Limit Device....................Optical RPM/Passpoint detector.
Limit Adjustment .............Electronic, Semi and Fully Automatic.
Start Circuit.....................Low voltage push button circuit.
Dimensions
Length (Overall)..............3.2m
Headroom Required .......30mm
Hanging Weight ..............16kg
Receiver
Memory Registers ..........12
Operating Frequency......433.92MHz
• Apply grease to rail and trolley
• Oil door rollers, bearings and hinges
• DO NOT lubricate the opener itself
• DO NOT APPLY grease to the door tracks
OPERATION OF YOUR OPENER
Your opener can be activated by any of the following devices:
• The Backlit Door Control Button. Hold the button down until door
starts to move.
• The Outside Keylock or Keyless Entry System (if you have installed
either of these accessories).
• The Remote Control Transmitter. Hold the push button down until
the door starts to move.
SPECIAL NOTE: Chamberlain strongly recommends that the protector
system be installed on all garage door openers.
Opening the Door Manually:
Door should be fully closed if possible. Weak or broken springs
could allow an open door to fall rapidly. Property damage or
serious personal injury could result.
The door can be opened manually by pulling the release handle down
and back (toward the opener). To reconnect the door, pull the release
handle straight down.
Do not use the manual release handle to pull the door opener
or closed.
When the Opener is Activated by Remote Control or Backlit Door
Control Button:
1. If open, the door will close. If closed, the door will open.
2. If closing, the door will stop.
3. If opening, the door will stop (allowing space for entry and exit of pets
and for fresh air).
4. If the door has been stopped in a partially open or closed position, it
will reverse direction.
5. If an obstruction is encountered while closing, the door will reverse.
6. If an obstruction is encountered while opening, the door will reverse,
then stop.
7. The optional Protector System™ uses an invisible beam which, when
broken by an obstruction, causes a closing door to open and prevents
an open door from closing. It is STRONGLY RECOMMENDED for
homeowners with young children.
Allow a 15 minute cooling period after 5 continuous operations
of the opener.
The opener light will turn on: 1. when opener is initially plugged in;
2. when the power is briefly interrupted; 3. when the opener is activated.
The light turns off automatically after 2-1/2 minutes. Bulb size is
24V/21W maximum.
21
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Liability – Australia only
CHAMBERLAIN 2 YEAR LIMITED WARRANTY
Motorlift ML750
Under no circumstances shall the Seller be liable for consequential,
incidental or special damages arising in connection with the use, or
inability to use, the Unit. In no event shall the Seller's liability for
damages or injury arising from breach of law or contract or for
negligence, exceed the cost of repairing or replacing the Unit or
refunding the purchase price of the Unit.
Sectional Door Operator
Chamberlain Australia Pty Limited / Chamberlain New Zealand
Limited (Seller) warrants to the original purchaser of the Merlin
ML750 Sectional Door Operator (Unit) that it is free from defects
in material and/or workmanship for a period of 2 YEARS from
the date of first purchase from the Seller.
Please retain your proof-of-purchase in the unlikely event you
require warranty service.
If, during the limited warranty period, the Unit fails due to defects in
materials or workmanship Chamberlain will, provided the defective
part or Unit is returned freight and insurance prepaid and well
packaged to the nearest Chamberlain office or authorised installer,
undertake to repair or, at its option, replace any defective part or
Unit and return it to the Buyer at no cost. Repairs and replacement
parts are warranted for the remaining portion of the original warranty
period.
Under Division 2 Part V of the Trade Practices Act, 1974, certain
warranties and conditions (Implied Terms) are implied into contracts
for the supply of goods or services if the goods or services are of a
kind ordinarily acquired for personal, domestic or household use or
consumption. Liability for breach of those Implied Terms cannot be
excluded or limited and the limitations and exclusions above do not
apply to the Implied Terms.
Except for the Implied Terms and the warranties set out above, the
Seller excludes all warranties and conditions implied by statute, at
law, in fact or otherwise.
Liability – New Zealand only
Except as set out in the Fair Trading Act 1986 and the Consumer
Guarantees Act 1993:
Limited warranty on motor
Chamberlain will furnish a replacement motor free of charge, if it is
found to be defective. Labour costs may apply.
Where the Unit has been installed by an authorised installer,
Chamberlain will furnish replacement parts free of charge through
the authorised installer. A service fee for on-site service may apply.
In-warranty service
During the warranty period, if the product appears as though it may
be defective, call our toll free service before removal of the unit. A
Chamberlain technician will diagnose the problem and promptly
supply you with the parts for “do-it-yourself” repairs, or provide you
with shipping instructions for a factory repair or replacement. If an
authorised installer installed your unit you must call them for prompt
on-site service.
(a)
all other guarantees, warranties and representations in
relation to the Unit or its supply are excluded to the extent
that the Seller can lawfully exclude them; and
under no circumstances shall the Seller be liable for
consequential, incidental or special damages arising in
connection with the use, or inability to use, the Unit, other
than those which were reasonably foreseeable as liable
to result from the failure.
(b)
NOTE: We request that you attach your sales docket or invoice to
this manual to enable you to establish the date of purchase in the
unlikely event of a service call being made.
Chamberlain reserves the right to change the design and
specification without prior notification. Some features or accessories
may not be available in certain markets or areas. Please check with
your distributor.
If our service centre determines that a warranty claim has been
made in respect of a failure or defect arising under out of any
exclusion set out below, we may charge you a fee to repair and/or
return the Unit to you.
Exclusions
This warranty does not cover any failure of the Unit due to:
1. non-compliance with the instructions regarding installation,
operation, maintenance and testing of the Unit or of any product
with which the Unit is used.
2. any attempt to repair, dismantle, reinstall or move the Product to
another location once the Product is installed by any person other
than an authorised installer.
3. tampering, neglect, abuse, wear and tear, accident, electrical
storm, excessive use or conditions other than normal domestic use.
This warranty does not cover any problems with, or relating to, the
garage door or garage door hardware, including but not limited to
the door springs, door rollers, door alignment or hinges, any
problems caused by electrical faults, replacement of batteries or
light bulbs or labour charges for reinstalling a repaired or replaced
Units.
Chamberlain Australia Pty Ltd
Phone toll free 1800 638 234
Fax toll free 1800 888 121
Chamberlain New Zealand Ltd
Auckland phone 09 415 4393
Phone toll free 0800 MERLIN
Fax toll free 0800 653 663
114A3458-ANZ
22
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