Sears 139.53960SRT Garage Door Opener User Manual


 
33
Care of Your Opener
LIMIT AND FORCE ADJUSTMENTS:
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 a trained door systems technician.
• 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 Adjustment Step 3.)
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.
FORCE CONTROLS
KG
KG
1
3
9
7
5
1
3
9
7
5
LIMIT CONTROLS
THE REMOTE CONTROL BATTERY
The lithium battery should
produce power for up to
5 years. To replace battery,
use the visor clip or
screwdriver blade to pry open
the case as shown. Insert
battery positive side down.
Dispose of old battery
properly.
To prevent possible SERIOUS INJURY or DEATH:
• NEVER allow small children near batteries.
• If battery swallowed, immediately notify doctor.
WARNING
CAUTION
WARNING
WARNING
3-FUNCTION
COMPACT
Twist here
to open
Open this end
first to avoid
cracking
housing
NOTICE: To comply with FCC and or Industry Canada (IC) rules, adjustment or
modifications of this receiver and/or transmitter are prohibited, except for changing the
code setting or replacing the battery. THERE ARE NO OTHER USER SERVICEABLE PARTS.
Tested to Comply with FCC Standards FOR HOME OR OFFICE USE. Operation is subject to
the following two conditions: (1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause
undesired operation.