Sears 139.53930D Garage Door Opener User Manual


 
CARE OF YOUR GARAGE DOOR
OPENER
LIMIT AND FORCE FORCECONTROLS
ADJUSTMENTS:
Weather conditions may cause
some minor changes in door
operation requiring some re-
adjustments, particularly during
the first year of operation LIMITCONTROLS
limit and force adjustments Only
a screwdriver is required Follow
the instructions carefully
Repeat the safety reverse test (Adjustment Step 3,
page 29) 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 27 and 28)
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 BATTERY
Toprevent possible SERIOUSINJURYor DEATH:
NEVERallow small children nearbatteries
If battery is swallowed, immediately notify doctor
The lithium battery should
produce power for up to openthisend
first to avoidJ _...._
5 years To replace battery, use cracl_ing_ _--_._.:.._-_J
the visor clip or screwdriver hous_
blade to pry open the case as
shown. Insert battery matching
polarity instructions inside the
remote cover or on the printed circuit board.
Dispose of old battery properly.
NOTICE:To comply with FCCand or Industry Canada rules (iC), 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 ECC 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.
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