Care Of Your Garage Door Opener - Craftsman 139.53930DM Owner's Manual

Care of Your Garage Door 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 27 and 28 refer to the
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.
FORCE CONTROLS
LIMIT CONTROLS
MAINTENANCE SCHEDULE
Every 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)
Two Times a Year
• Check chain tension. Disconnect trolley first. Adjust if
necessary. (See page 11)
Every 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.
To reduce risk of fire, explosion or chemical burn:
• ReplaceONLYwith 3V2032 coin batteries.
• DONOT recharge, disassemble, heat above 100°C (212°F)
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.
Open this end ,,,,,_.._
first to av0id/,___m<..__ j-'_
cracking _ <__/
hously
Replace the battery with only 3V2032 coin cell batteries.
NOTICE: To comply with FCC and or Industry Canadarules (IC),adjustment or modifications of this
receiver and/or transmitter are prohibited, except for changing the code setting or replacing the
battery.THEREARE NOOTHERUSERSERVICEABLE PARTS.
Tested to Comply with FCCStandards FORHOME OR OFFICEUSE, Operation is subject to the
following two conditions: (1) this device may not cause harmful interference, and (2) this device
must acceptany interference received,including interferencethat may cause undesiredoperation,
32