Sears 139.53975SRT1 Garage Door Opener User Manual


 
Care of Your Opener THE REMOTE CONTROL BATTERY
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.
FORCE CONTROLS
LIMIT CONTROLS
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.
To prevent possible SERIOUSINJURYor DEATH:
NEVERallow small children near batteries.
If battery is swallowed, immediately notify doctor.
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 up.
Dispose of old battery properly.
3-FUNCTION
Open this end
first to avoid
cracking
NOTICE: To comply with Fog and or Industry Canada (IC) rules, adjustment or
modifications of this [eceiverand/or transmitter areprohibited, except for changingthe
codesetting or replacingthe battery THEREARENOOTHERUSERSERVICEABLEPARTS.
Testedto Complywith FCCStandardsFORHOMEOROffiCE USE Operationis subjectto
the following two conditions: (1) this device may not cause harmful interference, and
(2) this devicemustacceptanyinterference_eceived,includinginterferencethat maycause
undesiredoperation
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