Craftsman 139.53910D Owner's Manual page 32

CARE OF YOUR OPENER
LIMIT AND FORCE ADJUSTMENTS:
Weather conditions may FORCE C ONTROLS
cause some minor changes
in door operation requiring
some re-adjustments,
particularly during the first
year of operation.
Pages 27 and 28 refer to the LIMIT CONTROLS
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
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 matching polarity
Open this end
first to avoid/ _...._
cracl_ing _ C_4-,_//_7
hous_
instructions inside the remote cover or on the printed
circuit board.
Dispose of old battery properly.
NOTICE: To comply with FCC and or Industry Canada rules (IC), adjustment or
modifications of this receiver and/or transmitter are prohibited, except for changing the
codesetting or replacing the battery.THERE ARE NOOTHERUSERSERVICEABLE P ARTS.
Tested to Comply with FCCStandards FORHOMEOR OFFICE USE.Operationis snbject to
the following two conditions: (1) this device may not canse harmful interference, and
(2) this device must accept any interference received, including interference that may
canseundesired operation.
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