Operation Safety Instructions; Important Safety Instructions; Care Of Your Opener; Maintenance Schedule - Chamberlain Series 1200 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 30. 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
either the force or the limit of travel, both adjustments may be needed 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 3. 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 from the garage door opener before making any repairs or removing
the covers.
SAVE THESE INSTRUCTIONS.
8.
Limit and force adjustment controls
Limit Controls
INCREASE TRAVEL
DOWN UP
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 28
and 29 refer to the limit and force adjustments. Only a
screwdriver is required. Follow the instructions carefully.
Repeat the safety reverse test (page 30) after any
adjustment of limits or force.

MAINTENANCE SCHEDULE

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 28 and
29.)
Repeat the safety reverse test. Make any necessary
adjustments (See page 30).
Twice a Year
Check chain tension. Disconnect trolley first. Adjust if
necessary (See page 11).
Once a Year
Oil door rollers, bearings and hinges. The opener
does not require additional lubrication. Do not grease
the door tracks.
WARNING

Care of Your Opener

Force Controls
9 9
1
7 3 7 3
5 5
KG
KG
Adjustment Label
(Located on the back panel)
1
Keep batteries away from small children. If
swallowed, promptly notify doctor.
The remote control transmitter
The opener must learn the code of any new remote
control. Page 33 explains how to program your
receiver and how to erase all codes if required. Self
service of your receiver and remote control is not
recommended. If service is needed, call the toll-free
number listed on the back page.
The remote control battery
The lithium battery should
produce power for up to 5 years.
To replace the battery, pry open
case with visor clip or screwdriver,
as shown. Insert battery positive
side up.
Dispose of your old battery
properly.
31
WARNING
WARNING