Operation Safety Instructions; Care Of Your Opener; Maintenance Schedule - Chamberlain Lift-Master Professional 1270 Owner's Manual

IMPORTANT SAFETY INSTRUCTIONS
To reduce the risk of severe injury or death to persons:
1. READ AND FOLLOW ALL INSTRUCTIONS.
2. Do not permit children either to operate or to play with the opener. Keep remote control in a location
inaccessible to children.
3. Operate opener only when the door is in full view and free from any obstruction. Keep the door in
sight until it is completely closed. NO ONE SHOULD CROSS THE PATH OF THE MOVING DOOR.
4. Check safety reversal system monthly. See page 26. The garage door MUST reverse on contact with
a one inch object (or a 2x4 board laid flat) placed on the floor. If an adjustment is made to one of the
controls (either force or limits of travel), the other control may need to be adjusted also, and the
safety reversal system must be checked. Failure to properly adjust the opener may result in severe
injury or death.
5. If possible, use the manual release only when the door is in a closed position. Caution should be
taken whenever the disconnect cord is actuated with the door open. Weak or broken springs may
cause the door to fall rapidly, causing injury or death to persons.
6. KEEP GARAGE DOORS PROPERLY BALANCED. See page 4. An improperly balanced door may not
reverse when required and could result in severe injury or death. Repairs to cables, spring assemblies
and other hardware must be made by a professional garage door person.
7. Disconnect the electric power to the garage door opener before making any repairs or removing the
covers.
SAVE THESE INSTRUCTIONS.
8.
Limit and force adjustment controls
Limit Controls
INCREASE INCREASE
DOWN UP
TRAVEL TRAVEL
Adjustment Label
(Located on the left side panel)
Weather conditions may cause some minor
changes in door operation requiring some re-
adjustments, particularly during the first year of
operation.
Pages 24 and 25 refer to the limit and force
adjustments. Only a screwdriver is required. Follow
the instructions carefully.
Repeat the safety reverse test (page 26) after any
adjustment of limits or force.
Once a Month
Manually operate door. If it is unbalanced or
binding, call for professional garage door service.
Check to be sure door opens & closes fully.
Adjust limits and/or force if necessary. (See pages
24 & 25.)
Repeat the safety reverse test. Make any
necessary adjustments (See page 26).
WARNING

Care of Your Opener

Force Controls
9 9
1
7 7
3
5 5
KG KG
Adjustment Label
(Located on the back panel)

Maintenance Schedule

The remote control transmitter
The opener must learn the code of any new remote
control. Page 29 explains how to program your
receiver and how to erase all codes if required. Self
1
service of your receiver and remote controls is not
3
recommended. If service is needed, call the toll-free
number listed on the back page.
The transmitter battery
The green test light will glow and the opener will
operate when the remote control is activated, as long
as there is adequate battery power.
If the power indicator light is dim or off , replace the
battery. Also check the test light if transmission range
decreases.
The 12 volt battery should produce power for at least
a year.
Dispose of your old battery properly.
Oil door rollers, bearings and hinge.
The opener does not require additional
lubrication.
Do not grease the door tracks.
27
WARNING
Once a Year