Chamberlain MotorLift ML750 User manual

Owners Copy: Please keep these instructions for future reference
This manual contains IMPORTA T SAFETY information.
DO OT PROCEED WITH THE I STALLATIO BEFORE READI G THOROUGHLY.
N2966N2966N2966N2966
ML750
Sectional & Tilt Garage Door Opener
Installation and Operating Instructions
www.chamberlainanz.com

CO TE TS PAGE
SAFETY NSTRUCT ONS . . . . . . . . . . . . . . .1
DOORTYPES ........................2
TOOLSREQURED ....................2
HARDWARE PROV DED . . . . . . . . . . . . . . . .2
BEFOREYOUBEGN ..................3
COMPLETED NSTALLAT ON . . . . . . . . . . . .3
ASSEMBLY .........................3-5
NSTALLATON ......................5-8
CONNECT ELECTR C POWER . . . . . . . . . .8
ADJUSTMENT .....................9-10
NSTALL PROTECTOR SYSTEM . . . . . . . .10
W RELESS PROGRAMM NG . . . . . . . . .11-12
NSTALL DOOR CONTROL . . . . . . . . . . . . .13
SPEC AL FEATURES . . . . . . . . . . . . . . . . . .14
ACCESSORES ......................14
REPLACEMENT PARTS . . . . . . . . . . . . .15-16
TROUBLE SHOOT NG . . . . . . . . . . . . . . . .17
CARE OF YOUR OPENER . . . . . . . . . . . . .18
MA NTENANCE OF YOUR OPENER . . . . . 18
OPERAT ON OF YOUR OPENER . . . . . . . .18
SPECFCATONS ....................18
WARRANTY .........................19
OTE: If your garage has no service entrance door, a 1702AML outside quick release must be installed.
This accessory allows manual operation of the garage door from outside in case of power failure.
1
WAR I G
•Failure to complywith the followinginstructions may result in seriouspersonal injury or property damage.
• Read and follow all instructions carefully.
• The garage door opener is designed and tested to offer safe service provided it is installed and
operated in strict accordance with the instructions in this manual.
These safety alert symbols mean WARNING : A possible risk to personal safety or
property damage exists.
START BY READING THESE IMPORTANT SAFETY INSTRUCTIONS
The Protector SystemTM must be used for all
installations where the closing force as
measured on the bottom of the door is over
400N (40kgf). Excessive force will interfere with the
proper operation of the Safety Reverse System or
damage the garage door.
After installation, ensure that the parts of the
door do not extend over public footpaths or
roads.
nstall the wireless wall control (or any additional
wall control) in a location where the garage door
is visible, at a height of at least 1.5m and out of
the reach of children. Do not allow children to
operate push button(s) or transmitter(s). Serious
personal injury from a closing garage door may
result from misuse of the opener.
Permanently fasten the Warning Labels in
Prominent Places, adjacent to Wall Controls and
manual release mechanisms as a reminder of safe
operating procedures.
Activate opener only when the door is in full
view, free of obstructions and the opener is
properly adjusted. No one should enter or leave
the garage while the door is in motion.
Do not allow children to play near the door, or
door controls.
Disconnect electric power to the garage door
opener before making repairs or removing
covers.
EEP THESE INSTRUCTIONS
eep garage door balanced.Do not let the
garage door opener compensate for a binding or
sticking garage door. Sticking, binding or
unbalanced doors must be repaired before
installing this opener.
Do not wear rings, watches or loose clothing
while installing or servicing a garage door opener.
Frequently examine the door installation, in
particular cable, springs and mountings for signs of
wear, damage or imbalance. Do not use if repair or
adjustment is needed since springs and hardware
are under extreme tension and a fault can cause
serious personal injury.
To avoid serious personal injury from
entanglement, remove all ropes, chains and
locks connected to the garage door before
installing the door opener.
Installation and wiring must be in compliance with
your local building and electrical codes.
The safety reverse system test is very
important. Your garage door MUST reverse on
contact with a 40mm obstacle placed on the floor.
Failure to properly adjust the opener may result in
serious personal injury from a closing garage door.
Repeat the test once a month and make any
necessary adjustments.
This opener should not be installed in a damp
or wet space exposed to weather.
This appliance is not intended for use by persons
(including children) with reduced physical, sensory
or mental capabilities, or lack of experience and
knowledge, unless they have been given
supervision or instruction concerning use of the
appliance by a person responsible for their safety.

B
AC
DOOR TYPES
1
2
1
11mm, 13mm
11/13mm
10mm, 8mm,
4.5mm, 4mm
2
A. Sectional door with curved track
B. One-piece door with horizontal track
C.One-piece door without track
To suit doors 12.5m2
Door mass up to: 70kg
(Door must be spring balanced)
10 19
7
3
456
12
13
8
NOTICE
11
15
14
17
18
1
20
16
21
2
(4x)
(2x) (3x)
(4x) (2x) (2x)
(2x) (4x)
(2x)
(2x) (1x)
(1x) (1x)
(1x)
(1x)
(4x)
(7x)
(7x) (3x)
(1x)
9 (1x)
(1) Hex bolt
(2) Clevis pin
(3) 8mm carriage bolt
(4) Wood screws
(5) Sheet metal screws
(6) Clevis pin
(7) Rope
(8) Handle
(9) Wall mount for 84330AML
(10) Anchor
(11) Concrete anchor
(12) Lock washer
(13) Hex nut
(14) Ring fastener
(15) Rail grease
(16) Lock nut
(17) Metric tapping screw
(18) Hex screw
(19) Spring
(20) Flat washer
(21) Stop bolt
HARDWARE PROVIDED
3
2
TOOLS REQUIRED

ASSEMBLY SECTION
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 for tilt doors (for sectional doors refer section 20).
123
12
45
9
7
11
13
14
6
8
15
10
(1) Header sleeve
(2) dler pulley bracket
(3) Trolley
(4) Rail
(5) Belt
(6) Hanging bracket
(7) Power cord
(8) Opener
(9) Light lens
(10) Manual release
rope & handle
(11) Curved door arm
(12) Straight door arm
(13) Door bracket
and plate
(14) Header bracket
(15) Trolley release arm
(16) Manual (this document)
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.
4
5
2
3
2
1
4
5
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
6
8
6
Manual
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? f so, a support bracket and additional fastening hardware (not
supplied) may be required.
3. Do you have an access door in addition to the garage door? f not, Model 1702AML outside quick release
accessory is required. This accessory allows manual operation of the garage door from outside in case of
power failure.
4. Complete the following test to make sure your garage door is balanced and is not sticking or binding:
• Lift the door about halfway. Release the door. f balanced, it should stay in place, supported
entirely by its springs.
• Raise and lower the door to see if there is any binding or sticking. f your door binds, sticks, or is out of
balance, call a trained door systems technician before proceeding with installation.
16
3
COMPLETED INSTALLATION - ALL PARTS LISTED ARE SUPPLIED IN THE CARTON
ASSEMBLE THE RAIL (SECTIONAL RAIL)
INSTALL THE BELT

To prevent the belt from fouling, pull the excess to the
opener end before inserting the trolley.
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.
Move the engaged trolley assembly to the midpoint of the rail,
then turn the rail assembly over ready to fasten to the opener.
7
5
3
1
2
13
2
8
3
1
4
6
7
4
7
6
2
5
3
1
6
2
4
5
3
5
3
4
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 the bolt previously
removed. Tighten bolts securely.
The opener sprocket teeth must engage the belt.
Place sprocket cover (1) on top of the opener (2),
secure with screws (3). nsert bolt (4) into trolley stop
hole (5), secure with washer (6) and nut (7).
9
10
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 (door end) of
rail (4). Push idler pulley bracket toward front
(door end) of rail (4). nsert carriage bolt (5) into
bolt cut out in the idler pulley bracket (6).
7
5
4
6
CAUTIO : Use only those bolts mounted in the top of opener. Use of any
other bolts will cause serious damage to opener.
4
INSERT TROLLEY & IDLER PULLEY BRAC ET INTO RAIL
FASTEN RAIL TO OPENER & INSTALL BELT
ATTACH TROLLEY TO RAIL
ATTACH SPROC ET COVER

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: Where possible it is recommended that the opener be installed 2.1m (7 feet) or more above the floor.
The header bracket must be securely fastened to a
structural support of the garage. Reinforce the wall or
ceiling with a 40mm (1-1/2") board if necessary. Failure
to comply may result in improper operation of safety
reverse system.
You can attach the header bracket either to the header wall
(1) or to the ceiling (3). Follow the instructions that best suit
your particular requirements. With the door closed, mark
the vertical centreline (2) of the garage door. Extend line
onto header wall above the door.
Open door to highest point of travel. Draw an intersecting
horizontal line (4) on header wall 50mm or 200mm above
high point to provide travel clearance for top edge of the
door. Height depends on door type (refer section 15).
3
1
2
4
12
OTE: Refer to vertical centre and horizontal lines
created in section 12 for proper placement of
header bracket.
A.Wall mount: Centre the header bracket (1) on the
vertical centre 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). Then drill 4.5mm (3/16")
pilot holes and fasten the header bracket with wood
screws (3).
B.Ceiling mount: Extend vertical centre line (2) onto
the ceiling. Centre the header bracket (1) on the
vertical mark no more than 150mm (6") from the wall.
Make sure the arrow is pointing towards the opener.
Mark all of the header bracket holes (5). Then drill
4.5mm (3/16") pilot holes and fasten the header
bracket with wood screws (3). For concrete ceiling
mount, use concrete anchors provided.
13
6
3
2
8
5
4
3
2
6
11
7
2mm
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 OT OVER TIGHTE THE BELT. See image
below.
11
INSTALLATION SECTION
5
2
50mm
3
1
4
B
A
150mm
(6")
12
3
5
5
2
3
1
4
200mm
(50 to 200mm depending on door type)
POSITION THE HEADER BRAC ET
INSTALL HEADER SLEEVE AND TIGHTEN BELT
INSTALL THE HEADER BRAC ET

POSITION THE OPENER
SECTIO AL DOOR OR TRACKED TILT
DOOR
You will need a 50mm piece of timber or similar
spacer to gauge the distance between door and rail.
1. Raise the opener up onto support.
2. Open the door completely, place a 50mm spacer
between the door and the rail (as shown).
3. f the top section or panel hits the trolley when you
raise the door, pull down on the trolley arm to
disengage the motor. Leave the trolley in this
position until motor is fastened in place.
O E PIECE TILT DOOR ( O TRACKED)
You will need a 100mm (4”) piece of timber or similar
spacer to gauge the distance between door and rail.
1. Raise the opener onto support.
2. Open the door completely, place a 100mm
spacer between the door and the rail (as shown).
3. The top of the door should be level with the top
of the motor. Do not position the opener more
than 50mm (2”) above this point.
15
Rail
Door 50mm spacer should
be used to determine
the correct mounting
position
Header
Bracket 50mm (2”)
above the highest
point of travel
Header
Bracket
50mm spacer should
be used to determine
the correct mounting
position
50mm (2”)
above the highest
point of travel
Door
Rail
100mm spacer should
be used to determine
the correct mounting
position
Door
Header 200mm (8”)
above the highest
point of travel
Bracket
Rail
Position the opener on the garage floor below the header
bracket. Place packing material under the opener to protect
the cover. Raise rail until holes in the header sleeve and
holes in the header bracket align. Join with clevis pin (1).
nsert ring fasteners (2) to secure.
OTE: To enable the rail to clear the 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 firmly in place by another person.
22
11
1
2
14
6
Door
A
Door
B
Door
C
ATTACH RAIL TO HEADER BRAC ET

Thread one end of rope (1) through hole in top of red handle so
"NOT CE" 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.
Thread other end of rope through hole in release arm of the
outer trolley (4). Adjust rope length so that handle is less than
1.8m (6 feet) above the floor. Secure with an overhand knot.
OTE: If it is necessary to cut rope, heat seal cut end to
prevent fraying.
Door should be released in the closed position if possible.
To release the trolley PULL down on the red handle.
To re-engage PULL the red handle back towards the opener
(trolley w ll re-engage automat cally when operated).
DO NOT USE THE HANDLE TO OPEN OR CLOSE THE DOOR.
17
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.
On each side of opener measure the distance
from the opener to the structural support (or
ceiling).
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).
Lift opener and fasten to hanging brackets with
screw, lock washer and nut (3). Check to make
sure rail is centred over the door. REMOVE 50mm
or 100mm board. Operate door manually. f door
hits the rail, raise header bracket. Use rail grease
and lubricate bottom inside surface of rail (6).
A
C
3
1
22
5
1
2
3
1
B2
4
13
3
2
5
2
3
6
6
6
16
DO NOT DISENGAGE THE OPENER IF ANY PERSONS OR OTHER OBJECTS INCLUDING MOTOR VEHICLES
ARE WITHIN THE DOORWAY: (The door is under significant tension and if the door has developed a fault or
incorrect tension, it may be unsafe and may fall rapidly).
7
ATTACH EMERGENCY RELEASE ROPE & HANDLE
HANG THE OPENER

A. O E-PIECE DOOR I STALLATIO :
Fasten the straight (1) and curved (2) door arm sections
together to the longest possible length (with a 2 or 3 hole
overlap) using carriage bolts (3), lock washers (4) and hex
nuts (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). t may be necessary to lift the door slightly to make the
connection. Secure with ring fastener (7).
OTE: When setting the up limit, the door should not
have a “backward” slant in fully open position. A slight
backward slant (9) will cause unnecessary bucking
and/or jerking whilst operating the door.
B. SECTIO AL DOOR I STALLATIO :
Connect according to Figure B, then proceed to
Section 21.
7
6
2
9
1
8
45
3
A
4
3
5
B
76
6
1
2
20
Sectional and one-piece door installation procedure:
Door bracket (1) has left and right side fastening holes. f
your installation requires top and bottom fastening holes
use both the door bracket and door bracket plate (2) as
shown.
1.Centre door bracket (with or without door bracket plate,
as required) at the top inside face of door as shown. Mark
holes.
A. One-piece doors
Locate bracket at inside face of the door 0-100mm down.
B. Sectional doors
150 - 250mm below the top of the door.
2. Fasten bracket to the door using the appropriate screws.
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 metal screws (4).
C. One-piece door optional
Fasten with wood or metal screws (4).
12
A. 0-100mm
B. 150-250mm
A
B
1
4
C
12
3
3
1
2
4
1
2
19
2
124V/21W Max.
Turn power off, then gently pull lens (2) downward until the
lens hinge is in the fully open position. Do not remove the
lens. nstall a 24V/21W maximum light bulb (1) in the socket
as shown. Turn power on, the light will turn on and remain lit
for 2-1/2 minutes. After 2-1/2 minutes it will turn off. To close,
gently push diffuser up until engaged.
18
Connect Electric Power
TO AVOID INSTALLATION DIFFICULTIES, DO NOT RUN THE GARAGE DOOR OPENER UNTIL INSTRUCTED TO
DO SO. Connect to properly fused and earthed power outlet.
8
INSTALL LIGHT
FASTEN DOOR BRAC ET
ASSEMBLE DOOR ARM

1
2
3
1
2
3
4
5
Travel limits regulate the points at which the door will stop
when moving up or down. Follow the steps below to set
the limits.
OTE: The door must be in the mid or closed position
to begin setting the limits.
Setting the limits:
1. Press and hold the black button (1) until the yellow
indicator (3) light starts flashing slowly then release.
2. Adjust the position of the door to the desired UP
position by using the black button. Black (1) moves the
door UP (open) and orange (2) moves the door DOWN
(close). Check to be sure the door opens high enough
for your vehicle to pass under.
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.
4. Adjust the desired DOWN (close) limit position using
the black and orange 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.
5. Open and close the door with the remote control or
door control 2 or 3 times (leave door in open position
ready for force setting).
OTE: The force must now be set in order to
complete your installation (refer section 22).
21
2
2
(2x)
3
4
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 (if installed). The door will travel to the DOWN (close)
position. Push the remote control (4) again, the door will travel to
the UP (open) position.
The LED (3) (indicator light) will stop flashing when the force has
been learned.
The door must travel through a complete cycle, UP and DOWN, in
order for the force to be set properly. f the unit cannot open and
close your door fully, inspect your door to ensure that it is balanced
properly and is not sticking or binding.
The force MUST be learned in order to properly complete the
setting of the limits.
22
ADJUSTMENT SECTION
9
SETTING THE LIMITS
SETTING THE FORCE

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 upon contact with the obstacle. f the door stops on the obstacle, remove
obstacle and repeat setting the limits and force sections 21 & 22 and repeat safety reverse test.
When the door reverses on the 40mm obstacle, remove the obstacle and run the opener through a complete
travel cycle. Door must not reverse in closed position. f it does, repeat setting the limits and force sections 21 &
22 and repeat safety reverse test.
Repeat test once a month and adjust as needed.
23
1
40mm 1
40mm
4. grey
3. white
white wires
twisted together
white/black
wires twisted
together
Connecting the Protector SystemTM
Locate the terminals on the front of the opener. Strip all
wires back about 10mm then twist the two white wires
and the two white/black wires together. Trim the twisted
wires to approximately 6mm. Use a small screwdriver or
pen to hold down the spring terminals, insert the
white/black wires into the grey terminal (4), then
terminate the white (only) wires into the white terminal
(3).
ote: The opener will automatically detect the Protector SystemTM when it is installed and operating for 5
minutes (during this time the beams must remain unobstructed). The opener will not close unless the
beams are aligned.
AFETY FIR T!
Whilst Chamberlain have engineered safety features into your
garage door opener, we urge you to consider fitting R Beams
to your new garage door opener. n many countries these
devices are compulsory to prevent serious injury or property
damage. For your own peace of mind and the safety of others
please install this inexpensive safety device.
24
10
STANDARD INSTALLATION COMPLETE
Install this accessory for all installations on tilt
doors, doors over 2.5m and when the closing force
as measured on the bottom of the door is over
400N (40kg).
After opener has been installed and adjusted, the
Protector System™ accessory can be installed.
nstructions are included with this accessory.
The Protector System™ provides an additional
measure of safety against a small child or obstacle
being caught under a garage door. t uses an
invisible beam which, when broken by an obstruction,
causes a closing door to open and prevents an open
door from closing and is strongly recommended for
homeowners w th young ch ldren.
The safety reverse system test is important. The 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.
TEST THE SAFETY REVERSE SYSTEM
INSTALL THE PROTECTOR SYSTEM™
(See accessories)

The remote controls supplied with your opener are pre-programmed to your receiver in the factory.
f you purchase additional remote controls, you will need to program them into your opener using the steps
below.
Adding remotes:
Using the orange “LEAR ” button:
1. Press and hold the button on the hand held remote you wish to program to the opener. The learn LED will
flash continuously.
2. Press and release the orange “learn” button.
3. Release the button on the hand held remote when the opener light flashes. t has learned the code. f the
light bulb is not installed, one click will be heard.
Using the multi-function door control:
1. Press and hold the button on the hand-held remote that you wish to operate your garage door.
2. While holding the remote button, press and hold the L GHT button on the multi-function door control.
3. Continue holding both buttons while you press the push bar on the multi-function door control (all three
buttons are held).
4. Release buttons when the opener light flashes. t has learned the code. f the light bulb is not installed,
one click will be heard.
Deleting ALL remote control codes
OTE: This deletes all remotes and 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.
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.
11
1
3
2
4
L
O
C
K
L
IG
H
T
LO
C
K
L
IG
H
T
1
3
2
25 WIRELESS PROGRAMMING

1
2
1
3
4
LOCK
LIGHT
2
LOCK
LIGHT
3
LOCK
LIGHT
26
OTE: Your new keyless entry must be
programmed before it will operate your
garage door opener.
Program the keyless entry system
Using the orange “LEAR ” 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 (P N) of your choice on
the keypad (2), then press and hold the
ENTER button.
3.Release the button when the opener light
flashes (3). t has learned the code. f the light
bulb is not installed, one click will be heard.
.
OTE: This method requires two people if the
keyless entry is already mounted outside the
garage.
Using the multi-function door control to
program:
1.Enter a four digit personal identification
number (P N) of your choice on the keypad,
then press and hold ENTER.
2.While holding the ENTER button, press and
hold the L GHT button on the multi-function
door control.
3.Continue holding the ENTER and L GHT
buttons while you press the push bar on the
multi-function door control (all three buttons
are held).
4.Release buttons when the opener light flashes.
t has learned the code. f the light bulb is not
installed, one click will be heard.
Wireless fingerprint access system C379
(optional accessory)
Full instructions are available with this accessory.
Once you have enrolled your user(s) into the C379
you can program the unit into your opener.
Using the orange “LEAR ” button:
1.Press and release the orange “learn” button on
opener. The learn indicator light will glow steadily for
30 seconds.
2.Within 30 seconds slide the cover of the C379 up
as illustrated (A). Swipe your finger on the reader
head at a steady speed (B) until the yellow LED
turns on (C).
3.When the opener light flashes it has learned the
code. f the light bulb is not installed, one click will
be heard, ensure there are no obstructions in the
path of the door, then press the send button (D) to
test the door.
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.
Programming C379 wireless fingerprint
EYLESS DEVICE PROGRAMMING (OPTIONAL ACCESSORIES)
12
ENROLL
FAIL
RETRY
SEND
PASS
READY
ENROLL
A
ENROLL
FAIL
RETRY
SEND
PASS
READY
ENROLL
C
B
D
Slide the cover plate
up (A)
Swipe finger at a
steady speed (B)
Yellow LED will indicate
successful swipe (C)
Courtesy light will
flash once.
Test reader by pressing
the send button (D)

4
2
3
WHT
-2
RED
-1
6
6mm
1
2
4
WHT
RED
1
4
LOCK
LIGHT
3
3
23
Multi-function wall control
Backlit push button
Operation of the door control using 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). f 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.
Lock feature
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 keyswitch 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.
INSTALL DOOR CONTROL (OPTIONAL)
27
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 to the wall near the door control as a reminder of safe operating
procedures.
LOCK
LIGHT
1
2
3
13
Installation
There are 2 terminals (1) on the back of the door control. 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 onto 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 and connect to the garage door opener quick connect terminals
which 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).Use a screwdriver or pen to press open the spring terminals, then insert the cable into
the terminal.

AB
8
7
6
5
A. Door within a door connection
Open light lens. Locate auxiliary quick connect terminals (remove factory installed link). nsert 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.
28
89
7
3
2
5
4
LOCK
LIGHT
6
1
ENROLL
FAIL
RETRY
SEND
PASS
READY
ENROLL
29
1. Model C379 Fingerprint keyless entrypad
2. Model 84335AML 3 channel mini remote control
3. Model 84330AML 1 channel remote control
4. Model 8747AML keyless entry system
5. Model 770AML or C77 The Protector SystemTM
6. Model 845AML Multi-function control panel
7. Model 75AML lluminated button
8. Model 760AML Outdoor keyswitch
9. Model 1702AML or CM1702 Outside quick release
14
SPECIAL FEATURES
ACCESSORIES

NOTICE
041A2828
disengagement
rope and handle
012B0906
door bracket
178B0034B
straight door
arm
178B0086B
curved door arm
178B69
hanging bracket
chain links
004A1008 1/2”
109A0046 1”
083A0011-1
grease
041A5643-19
hardware bag
12VDC
Pb Cd Hg
012C0778
brackets
041A5800
outer trolley
012C0855
header bracket
183D177
183D178
041A5887
C-rail assembly
replacement batteries
229A2032 (x1) or
229A2016 (x2)
216A206
spring tension
031D0533-1
pulley cover
041A5843
belt kit
041A6398
inner trolley
012C0777
idler assembly
144C0077
idler pulley
146A112
idler pin
012C0810
header sleeve
012B0905
door bracket
REPLACEMENT PARTS
30
15

041A0589-1
belt pulley &
E circlip
041A5735C
logic board
lamp
041A0079
041D0577
motor assembly
041D0538
108C0082
lens cover
041A5908 chasis
204C0240-2
transformer and lead
16
31 REPLACEMENT PARTS
If the supply cord is damaged, it must be replaced by the manufacturer, its service
agent or similarly qualified persons in order to avoid hazard.

TROUBLE SHOOTING
1. Opener doesn't operate from either door control or remote:
• Does the opener have electric power? Plug lamp into outlet. f 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.
• s 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:
• s door control button lit? f 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. f 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 section 27.
3. Door operates from door control but not from remote:
• Replace battery if necessary.
• f you have two or more remotes and only one operates, review
wireless programming, keyless device programming sections 25 and
26.
• s the door control button flashing? The opener is in lock mode. f 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:
• s battery installed? Check or change battery.
• Change the location of the remote control in the car.
• Ametal 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
flash:
• s something obstructing the door? Pull manual release handle.
Operate door manually. f it is unbalanced or binding, call for
professional garage door service.
• Clear any ice or snow from garage floor area where garage
door closes.
• Repeat setting limits and force, see adjustment sections 21 and 22.
Repeat safety reverse test after adjustment is complete.
6. Door reverses for no apparent reason and opener light flashes
for 5 seconds after reversing:
• Check the Protector System™ (if you have installed this accessory).
f the light is flashing, correct alignment.
7. The garage door opens and closes by itself:
• Make sure remote push button is not stuck "on".
8. Door stops but doesn't close completely:
• Repeat setting the limits, see adjustment section 21.
• Repeat safety reverse test after any adjustment of door arm length,
close force or down limit.
9. Door opens but won't close:
• Check the Protector System™ (if you have installed this accessory).
f the light is flashing, correct alignment.
• f opener light does not flash and it is a new installation, repeat setting
the limit and force sections 21 and 22.
• Repeat the safety reverse test after the adjustment is complete.
10. Opener light does not turn on:
• Replace light bulb (24V/21W maximum).
11. Opener strains:
• 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. f it does not, call for
professional garage door service to correct the problem.
12. Opener motor hums briefly, then won't work:
• Garage door springs are broken. SEE ABOVE.
• f problem occurs on first operation of opener, door is locked. Disable
door lock.
• Repeat safety reverse test after adjustment is complete.
13. Opener won't activate due to power failure:
• 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.
14. 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).
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.
OTE: If neither the BLACK or the ORA GE button is pressed, the
door will reverse off the floor and the DOW travel limit will be set
automatically.
4.Open and close the door with the remote control or door control 2
or 3 times.
• f the door does not stop in the desired UP (open) position or reverses
before the door stops at the DOWN (close) position, repeat sett ng
the l m ts manually one more time.
• f the door stops in both the desired UP (open) and DOWN (close)
positions, proceed to test the safety reversal system.
17

MAINTENANCE OF YOUR OPENER
Once a Year:
• Apply grease to rail and trolley
• il door rollers, bearings and hinges
•DO NOT lubricate the opener itself
•DO NOT APPLY grease to the door tracks
CARE OF YOUR OPENER
When properly installed, your opener will operate with minimal
maintenance. The opener does not require additional lubrication.
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 sett ng the l m ts and force on page 9. 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: f transmission range decreases, replace
battery.
To change battery: To replace batteries, use the visor clip or
screwdriver blade to pry open the case. nsert batteries pos t ve s de
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 centre.
OPERATION OF YOUR OPENER
Your opener can be activated by any of the following devices:
•The backlit door control button (if installed). Hold the button
down until door starts to move.
•The outside keyswitch 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.
Opening the door manually:
The door can be opened manually by pulling the release handle
down. To reconnect the door, pull the release handle down and
toward the opener.
Do not use the manual release handle to pull the door open
or closed.
When the opener is activated by remote control or backlit door
control button:
1. f open, the door will close. f closed, the door will open.
2. f closing, the door will stop.
3. f opening, the door will stop (allowing space for entry and exit of
pets and for fresh air).
4. f the door has been stopped in a partially open or closed position,
it will reverse direction.
5. f an obstruction is encountered while closing, the door will
reverse.
6. f 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. t 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.
SPECIFICATIONS
Input Voltage 230-240 VAC, 50Hz
Max. Pull Force ..............600N
Power .............................115W
Standby Power...............5.5W
Normal Torque................7Nm
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............................... n when door starts, off 2-1/2 minutes
after stop
Door Linkage..................Adjustable door arm. Pull cord trolley release
afety
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
Limit Device.................... ptical RPM/Passpoint detector
Limit Adjustment.............Electronic, semi and fully automatic
Start Circuit.....................Low voltage push button circuit
Dimensions
Length ( verall)..............3.2m
Headroom Required.......30mm
Hanging Weight..............16kg
Receiver
Memory Registers ..........12
perating Frequency......433.92MHz
18
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.
PECIAL NOTE: Chamberlain strongly recommends that the Protector ystemTM be installed on all garage door openers.

Liability – Australia only
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.
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:
(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
(b) 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.
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. ome features or
accessories may not be available in certain markets or areas.
Please check with your distributor.
CONTACT DETAIL :
Chamberlain service centres:
Australia
Phone toll free 1800 638 234
Fax toll free 1800 888 121
New Zealand
Auckland phone [phone]
Phone toll free 0800 653 667
Fax toll free 0800 653 663
www.chamberlainanz.com
CHAMBERLAIN 2 YEAR LIMITED WARRANTY
Chamberlain ML750
ectional Door Opener
Chamberlain Australia Pty Limited / Chamberlain New Zealand
Limited ( eller) warrants to the original purchaser of the
Chamberlain ML750 ectional Door Opener (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 eller.
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.
Limited warranty on opener
Chamberlain will furnish a replacement opener 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.
If our service centre determines that a warranty claim has been
made in respect of a failure or defect arising out of any exclusion
detailed 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.
114A4220B © 2010 The Chamberlain Group, nc
19
TM Trademark of The Chamberlain Group, Inc.
® Registered Trademark of The Chamberlain Group, Inc.