Care of your opener, The remote control battery, Limit and force adjustments – Craftsman 139.53993D User Manual

Page 32: Maintenance schedule, A warning

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CARE OF YOUR 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

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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).

Once a Year

Oil door rollers, bearings and hinges. The opener does

not require additional lubrication. Do not grease the
door tracks.

A WARNING

To prevent possible SERIOUS INJURY or DEATH:
• NEVER all ow 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 positive side up (+).

Dispose of old battery properly.

Open this end
first to avoid
cracking
housing

NOTICE: To comply with FCC and or Indiisiry Canada rules (1C), 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.

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