Chamberlain ML750-GB Garage Door Opener User Manual


 
9-GB
9
Once a Month:
Repeat safety reverse test. Make any necessary adjustments.
Manually operate door. If it is unbalanced or binding, call for
professional garage door service.
Check to be sure door opens and closes fully. Set Limits and/or
Force if necessary.
Once a Year:
Oil door rollers, bearings and hinges. The opener does not require
additional lubrication. Do not grease the door tracks. Grease rail and
trolley once a year.
When properly installed, opener will provide high performance with
a minimum of 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 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 lessens, replace battery.
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.
MAINTENANCE OF YOUR OPENER
CARE OF YOUR OPENER OPERATION OF YOUR OPENER
Your opener can be activated by any of the following devices:
The Lighted 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.
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 Lighted 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
and 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.
114A2804E-GB