Craftsman 139.53903DM Owner's Manual page 32

Care of YourOpener
LIMIT AND FORCEADJUSTMENTS:
Weather conditions may cause some
minor changes in door operation
requiring some re-adjustments,
particularly during the first year of
operation.
Pages27 and 28 refer to the limit and
force adjustments. Only a screwdriver
is required. Follow the instructions
carefully.
Repeat the safety reverse test
(AdjustmentStep 3, page 29) after
any adjustmentof limits or force.
FORCE CONTROLS
LIMIT CONTROLS
MAINTENANCE SCHEDULE
Oncea Month
• Manually operate door. If it is unbalancedor binding, call a
trained door systems technician.
• Checkto be sure door opens & closes fully. Adjust limits
and/or force if necessary. (See pages 27 and 28)
• Repeatthe safety reversetest. Make any necessary
adjustments. (See Adjustment Step 3)
Twice a Year
• Check chain tension. Disconnect trolley first. Adjust if
necessary. (See page 11)
Oncea Year
• Oil door rollers, bearings and hinges. The opener does not
require additional lubrication. Do not greasethe door tracks.
THE REMOTECONTROLBATTERY
To prevent possible SERIOUSINJURYor DEATH:
• NEVERallow small children near batteries.
• If battery is swallowed, immediately notify doctor.
To reduce risk of fire, explosion or chemical burn:
• ReplaceONLYwith 3V2032 coin batteries.
• DONOT recharge, disassemble, heat above 212°F (100°C)
or incinerate.
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.
Replace the battery with ONLY 3V2032
coin cell batteries.
Open this end
first to avoid/_ _<-_ _
cracking f
<<_SJ%__._
hous_
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 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.
32