Sears 139.53971SRT Garage Door Opener User Manual


 
Care of Your Opener
LIMIT AND FORCE ADJUSTMENTS:
Weather conditions may
cause some minor FORCECONTROLS
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,
LIMIT CONTROLS
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.
THE REMOTE CONTROL BA'I'rERY
TopreventpossibleSERIOUSINJURYor DEATH: I
NEVERallowsmall childrennearbatteries. I
If batteryswallowed,immediatelynotify doctor. I
I
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.
3*FUNCTION
Open this end _
Rrst Loavoid _ _ i
cracking o_ _,,
COMPAC_
Twist here
to open
NOTICE: To comply with FCC and/or Industry Canada rules, adjustmentor
SERVICEASLEPARTS,m°dificati°nsofthis receiverand/ortransmitter areprohibited,exce_ fo_changing
the code seHing or replacing the bakery. THEREARE NOOTHERUSER
33